A strain of fruit fly lacks the ability to produce Dicer- 2 protein. You might expect this strain to be more susceptible to _______ infections. A. viral B. bacterial C. fungal D. protozoan
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A strain of fruit flies lacks the ability to produce Dicer- 2 protein. You might expect this strain to be more susceptible to A. viral infections.
Infections happen when a microorganism enters someone’s body and causes damage.
The microorganism makes use of that person’s body to sustain itself, reproduce, and colonize. These infectious microscopic organisms are referred to as pathogens, and they can multiply quickly. Examples of pathogens consist of:
microorganismvirusesfungiThe immune system is an effective barrier to infectious sellers. but, pathogens might also every so often overwhelm the immune system’s capacity to fight them off. At this level, contamination turns into danger.
A few pathogens have little impact in any respect. Others produce pollutants or inflammatory materials that cause negative responses from the body. This alteration manner that a few infections are mild and barely important, whilst others may be excessive and existence-threatening. A few pathogens are proof against the remedy.
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Related Questions
what’s the answer for the 2nd choice box??
bio
pls help!!
Answers
Answer:
base pairs....................
Orange juice containing added calcium is an example of which type of food?
a. fortified
b. processed
c. imitation
d. functional
e. enriched
Answers
Orange juice containing added calcium is an example of which type of food d. functional.
Orange juice is a liquid extract of the orange tree fruit, produced via the use of compacting or reaming oranges. it's miles to be had in several differing types. Orange juice refers back to the juice of oranges. it's miles made by squeezing the sparkling fruit, drying, and later rehydrating the juice.
regular consumption of Orange juice has been associated with numerous fitness benefits, which include advanced heart fitness, reduced irritation, and a discounted hazard of kidney stones.
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rong
What is the best way to test if a substance is a transition metal?
Answers
What is the study of life called?
Answers
Answer:
biology
Explanation:
Answer:
its bios
its dervied from Greek words bios which means life
Which scientist was harshly criticized for his theories on "inheritance of acquired characteristics?"
- Jean Baptiste Lamarck
- Alfred Russel Wallace
- Georges Cuvier
- Charles Lyell
Answers
You have succeeded in breeding two varieties A and B of cattle that each have some desirable traits. You produce hybrids of these
two varieties in the hope to obtain cattle that combine these desirable traits. All hybrid individuals grow normally but to your great
surprise, you also discover that some of the hybrid bulls originating from A(2) x B(S) crosses produce only daughters.
A, What kind of genetic element could be responsible for this finding, and why?
B, In which variety (A, B, or both) do you expect this element to be found, and why?
C. Why is this phenotype not observed in either the A or the B parental variety?
Answers
A. The genetic element that could be responsible for the finding is known as the sex-determining region (SDR) or sex-linked gene. This is because of the observation that some hybrid bulls that originate from A (2) × B (S) crosses produce only daughters. B.
This genetic element is expected to be present in variety A because it is related to the sex chromosomes (XY) and A has the SRY gene which is responsible for male determination. It is important to note that while this element is present in both varieties A and B, it is inactive in B. Therefore, it is active only in the A variety. C. This phenotype is not observed in either the A or the B parental variety because they produce only female and male offspring, respectively. The phenomenon is observed only in the F1 hybrid as a result of a combination of genetic factors from the two parental varieties. The genetic factor from variety A which influences the production of females only exists in an inactive form in variety B.
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in mice, the gene (C) for colored fur is dominant over its allele (c) for white. The gene (N) for normal behavior is dominant over ()n for waltzing. Pairs of mice were mated, and the following results obtained. In each case, give the probable genotypes of the parents:
a) colored normal mated with white normal produced 29 colored normal, and 10 colored waltzers.
b) colored normal mated with colored normal produced 38 colored normal, 15 colored waltzers, 11 white normal, and 4 white waltzers
c) colored normal mated with white waltzer produced 8 colored normal, 7 colored waltzers, 9 white normal, and 6 white waltzers
Answers
The probable genotypes of parents include:
a) CcNn and ccNn
b) CcNn and CcNn
c) CcNn and ccnn
How to determine probable genes?a) The probable genotypes of the parents in this case would be CcNn and ccNn, where C represents the dominant allele for colored fur, N represents the dominant allele for normal behavior, c represents the recessive allele for white fur, and n represents the recessive allele for waltzing behavior.
b) The probable genotypes of the parents in this case would be CcNn and CcNn, where C represents the dominant allele for colored fur, N represents the dominant allele for normal behavior, c represents the recessive allele for white fur, and n represents the recessive allele for waltzing behavior.
c) The probable genotypes of the parents in this case would be CcNn and ccnn, where C represents the dominant allele for colored fur, N represents the dominant allele for normal behavior, c represents the recessive allele for white fur, and n represents the recessive allele for waltzing behavior.
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Information about the four organisms can be found on the Internet. Use credible websites to find answers to the questions you developed in part A. Based on this data, draw your own dichotomous key.
Answers
Making a Dichotomous Key
Step 1: Make a list of the attributes.
Step 2: Arrange the features in the correct order.
Step 3: Divide the specimens.
Step 4: Cut the specimen even more into smaller piece
Step 5: Draw a dichotomous key diagram as the fifth step.
Step 6: Put it to the test
What exactly is a dichotomous key?A dichotomous key is a useful scientific tool for identifying various organisms based on their visible characteristics. Dichotomous keys are made up of a succession of statements, each with two options, that guide users to the proper identification.
What is an example of a dichotomous key?In tree identification, for example, a dichotomous key can question if the tree has leaves or needles. The key then directs the user down one list of questions if the tree has leaves, and a different question list if it has needles
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Identify and describe 3 different scenarios in which use of CRISPR-Cas9 has been proposed to be beneficial. 1.2.3.
Answers
CRISPR-Cas9 is a revolutionary gene-editing tool that is changing the face of biology and medicine.
Here are three different scenarios in which its use has been proposed to be beneficial:
1. Genetic Diseases: CRISPR-Cas9 has been proposed to be beneficial in treating genetic diseases such as cystic fibrosis, sickle cell anemia, and Huntington's disease. The technique can be used to edit the DNA of a patient's cells to correct the genetic mutation that is causing the disease. In 2019, the first clinical trials using CRISPR-Cas9 for treating genetic diseases began.
2. Agriculture: CRISPR-Cas9 has been proposed to be beneficial in agriculture by creating crops that are resistant to pests and disease. This would reduce the use of pesticides and increase food production. For example, scientists have used CRISPR-Cas9 to create a wheat variety that is resistant to powdery mildew, a common disease that can reduce yields.
3. Conservation: CRISPR-Cas9 has been proposed to be beneficial in conservation by bringing back extinct species. The technique can be used to edit the DNA of closely related species to create an embryo that contains the DNA of the extinct species. For example, scientists have proposed using CRISPR-Cas9 to bring back the woolly mammoth by editing the DNA of Asian elephants, which are closely related to woolly mammoths. This could help restore ecosystems and prevent the loss of biodiversity.
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please help please i really need it
Answers
Answer:
The answer is C
Dandelion and sycamore seeds are dispersed (carried away) by the wind. Explain how each one is adapted to be carried by the wind.
Answers
Dandelion and sycamore seeds are both adapted to be dispersed by the wind. The following are explanations of how each one is adapted:
Dandelion seeds: Dandelion seeds are small and light, with feathery bristles known as pappus, which help them to float easily in the wind. The pappus is attached to the seed and acts as a parachute, increasing the surface area of the seed and slowing its descent. This adaptation allows dandelion seeds to travel long distances in the wind, increasing their chances of finding a suitable environment for growth.
Sycamore seeds: Sycamore seeds have a unique structure that allows them to spin as they fall, known as a "whirlybird" or "helicopter." The seed is attached to a wing-like structure, which is angled in such a way that when it falls, it spins rapidly, generating lift and slowing its descent. This adaptation allows sycamore seeds to travel farther and increases their chances of landing in a suitable environment for germination.
In summary, both dandelion and sycamore seeds have adaptations that make them light and easy to carry by the wind. Dandelion seeds have feathery bristles that act as a parachute, while sycamore seeds have a "whirlybird" structure that generates lift and slows their descent. These adaptations allow both types of seeds to be dispersed over long distances, increasing their chances of finding suitable environments for growth and reproduction.
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By the end of the period all major animal lineages were present in the seas due to a great adaptive radiation of animals
Answers
The correct answer to this open question is the following.
Although there are no options attached we can say the following.
The correct answer is the Cambrian period.
By the end of the Cambrian period, all major animal lineages were present in the seas due to the great adaptive radiation of animals.
We are talking about 500 to 540 million years ago on planet Earth.
Scientists consider that during the Cambrian period, major groups of animals diversified. Marine animals such as trilobites were among the first fossils discovered by scientists. Oxford curator Edward Luhyd started to study these fossils in 1668.
Based on the characteristics described, which category do you think humans belong to? Why do you think they fit in this category?
Answers
Answer:
Based on the characteristics describes, humans are mammals.
Explanation:
We are mammals, which due to that we have a backbone, and also that the humans have hair and females have milk glands which can be used to feed their babies and such.
Tell how the Lophorina Superba organism responds to change in it' s environment ( please help )
Answers
The bigger lophorina is found in the rain forests of New Guinea. It mostly inhabits rain forests or forest edges in Indonesia and Papua New Guinea. They can also be found in the hills and forests of New Guinea.
What is environment?The environment may be described as the totality of all living and non-living components and their effects on human life. Non-living or abiotic components include water, land, sunshine, rocks, and air, whereas all live or biotic elements include animals, plants, forests, fisheries, and birds. The environment refers to all of Earth's physical surroundings. The environment contains both living and nonliving things. The nonliving environment is divided into three parts: the atmosphere, the hydrosphere, and the lithosphere.
Here,
The larger lophorina is found across New Guinea's rain forests. It lives mostly in rain forests or forest fringes in Indonesia and Papua New Guinea. They may also be found in New Guinea's hilly environments and forests.
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Which of the following does NOT cause weathering?
A. Plants
B. Water
C. Helium
D. Temperature change
Answers
Answer:C
Explanation:
Which would be the benefit of a transgenic crop?
1. decreased drought tolerance
2. decreased disease resistance
3. increased resistance to pests
4. increased demands for nutrients
Answers
4. increased demands for nutrients would be the benefit of a transgenic crop
What advantages can transgenesis offer?Transgenesis enables the enhancement of the amount, overall quality, and particular nutritional content of nutrients in animal products. Transgenic technologies could make it possible to increase or transmit features that are good for nutrition.
Many farmers have profited from first-generation transgenic cultivars thanks to lower production costs, increased yields, or both. They frequently have also helped the environment by using less pesticides or by making it possible to grow crops with less tillage.
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Which pairs of polygons are similar? select each correct answer.
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If the respective sides have a constant ratio and the corresponding angles are congruent, two polygons are said to be similar. There will always be similar varieties of triangles, quadrilaterals, and polygons.
For instance, squares and congruent triangles are both similar shapes. We know the lengths of comparable sides are proportional if two polygons resemble one another. When two polygons have corresponding sides that are proportionate and corresponding angles that are congruent, they are said to be similar polygons. In other words, the polygons may be different sizes even though they have the same shape. Since all regular polygons have equal sides and proportionate radii.
(The que is incomplete I answered this que in general according to my knoweledge).
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Which feature of the kinetics of L-Alanine transport would provide evidence that DOM is an important source of nutrients under low-food conditions?
High affinity transport (Kt) of L-Alanine
-Under low food conditions, the capacity of transport is irrelevant as no transporters are saturated with L-alanine
-However, the transporter's affinity for L-alanine would be important as only HIGH AFFINITY transporters will be able to facilitate L-alanine uptake at low concentrations
Answers
High affinity transport (Kt) of L-Alanine feature of the kinetics of L-Alanine transport would provide evidence that DOM is an important source of nutrients under low-food conditions.
This biochemistry question is categorized as "Assemblies of molecules, cells, and groups of cells within single cellular and multicellular organisms" in terms of its subject matter. The answer to this issue is A because no transporters are saturated with L-alanine under low-food conditions, making the transport capacity unimportant. Only high affinity transporters would be able to assist L-alanine uptake at low concentrations, hence the transporter's affinity for L-alanine would be crucial.
Because you are expected to utilize your understanding of transport kinetics to forecast the characteristics of transport that would be significant under low L-alanine conditions, this question falls under the category of scientific reasoning and problem solving.
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Put all bronchi in order from largest to smallest in diameter (including
bronchioles):
Answers
Bronchi, bronchioles, terminal bronchioles, respiratory bronchioles, and alveoli are the structures in size order. The correct option to this question is B.
Respiratory systemTo get to the alveoli, where oxygen takes part in gas exchange with the blood, air travels via these airways in this order during inhalation. When we exhale, air and carbon dioxide travel through these airways in the opposite direction to be expelled from the body.Air enters and exits the body through the respiratory system. Our body requires a steady flow of oxygen and the removal of carbon dioxide, hence this function is crucial. The primary airways, known as bronchi, in your lungs branch off to form progressively smaller passages. Alveoli are tiny air sacs that are connected to the smallest airways, known as bronchioles.For more information on respiratory system kindly visit to
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Complete question :: Place the following structure in order from largest to smallest:
A. Bronchi, terminal bronchioles, respiratory bronchioles, bronchioles, alveoli
B. Bronchi, bronchioles, terminal bronchioles, respiratory bronchioles, alveoli
C. Bronchi, bronchioles, terminal bronchioles, alveoli, respiratory bronchioles
D. Bronchioles, bronchi, terminal bronchioles, respiratory bronchioles, alveoli
Martime tropical air masses contain what type of air?
O cold and dry air
O hot and moist air
O cold and moist air
O hot and dry air
Answers
Answer:
77
Explanation:
The starchy endosperm plays what role in the barley kernel...
Answers
Reserves of food. reserves of fat, carbohydrates, or (rarely) protein that are found in cells and tissues and serve as a vital energy reserve that can be released and used to produce ATP when the body needs it.
Animals, for instance, store fat in adipose tissue while storing carbohydrates in the form of the storage molecule glycogen in the liver and muscle cells. Starch, which can be found in seeds (where it is mobilised at germination) and perennating organs (see perennation), is a major storage compound in plants. Some species also use oils as significant storage materials (e.g. in the seeds of the castor-oil plant). The barley grain's endosperm, which is the biggest tissue, is frequently referred to as the "starchy endosperm."
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researcher investigates a recently discovered species of plant. The plant has vascular tissues and exhibits a sporophyte and a gametophyte generation, but lacks seeds. How should the researcher classify the plant?
Answers
pteridophyte
Explanation:As you might guess, Pteridophyte are plants that can move through the air. They do not make new plants by releasing seeds.
Other pteridophyte characteristics include the following:
They exhibit alternation of generations, in which the sporophyte and gametophyte generations are observed.Sporophytes are plants with true roots, stems, and leaves.Sporangia grow in clusters on sporophylls.I hope this helps you
:)
the signal transduction pathway amplifies the signal by activating very large numbers of proteins
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Incoming signals are amplified by signal transduction pathways, which employ a network of enzymes that interact with one another in specific ways to finally cause the cell to respond physiologically in a precise and appropriate manner.
What is the function of the signal transduction pathway?One ligand molecule can activate several molecules of a downstream target as a result of many signal transduction pathways amplifying the initial signal. Proteins are frequently used as signal-relaying molecules.
Does signal transduction involve amplification?One of the key characteristics of the cell signaling pathways is amplification. The signal transduction pathways use a variety of enzymes that interact with one another to dramatically enhance the entering signal through signaling cascade systems.
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QUIZ
56:36 remaining
Which organ helps a child develop immunity?
A) the thyroid
B) the thymus
C) the pancreas
D) the ovaries
Answers
The Thymus
Explanation:
help me out in biology https://brainly.com/question/22030744
Answer:
The organ that helps a child develop immunity is the thymus.
Explanation:
Have a great rest of your day(s)
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Distinguish between:
Bat and Dove
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Answer and Explanation:
Bats are mammals of the order Chiroptera. With their forelimbs adapted as wings, they are the only mammals capable of true and sustained flight. Bats are more manoeuvrable than birds, flying with their very long spread-out digits covered with a thin membrane or patagium.
Their wings skeleton have the shape of finger/hands like a human.
Doves are the only family in the order Columbiformes. These are stout-bodied birds with short necks, and short slender bills that in some species feature fleshy ceres. They primarily feed on seeds, fruits, and plants.
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Answer:
Doves have beaks and no teeth, whereas bats have jaw bones with sharp teeth. Although they both fly, Dove and bats feature different structures that allow them to take flight. Doves have rigid, feathered wings that they flap completely in order to fly.
Which of the following properties of energy has allowed humans to use the many types of fuels? energy’s ability to convert from one form to another, energy’s ability to transfer from one object to another, having energy in organisms for reproduction, growth, and metabolism, or having energy in plants for photosynthesis and animals for respiration
Answers
The property of energy that has allowed humans to use the many types of fuels is energy's ability to convert from one form to another.
- Energy's ability to convert from one form to another is the property that has enabled humans to utilize various types of fuels.
- This conversion of energy allows for the transformation of one form of energy into another usable form.
- For example, fossil fuels such as coal, oil, and natural gas contain stored energy from ancient organic matter.
- Humans have developed technologies like combustion engines and power plants to convert the chemical energy stored in these fuels into useful forms such as mechanical energy or electricity.
- Similarly, renewable energy sources like solar, wind, and hydroelectric power harness natural processes and convert them into usable forms of energy.
- Energy's ability to transfer from one object to another is important for the distribution and utilization of energy.
- This transfer enables the transportation of fuels and the transmission of electricity over long distances.
- Having energy in organisms for reproduction, growth, and metabolism is crucial for sustaining life but is not directly related to the utilization of different types of fuels by humans.
- Likewise, the presence of energy in plants for photosynthesis and animals for respiration is important for biological processes but not specifically for the use of various fuel sources by humans.
- Overall, it is energy's ability to convert from one form to another that has allowed humans to tap into the diverse range of fuel resources available for meeting their energy needs.
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Fur color is a trait controlled by a dominant over recessive gene. The fur color is either brown or black.
Two brown mice and produce 12 offspring. Three (25%) of the offspring produced are black fur and nine (75%) have brown fur.
Based on the above data, answer the follow questions.
State which fur color is dominant (1 pt each).
State which fur color is recessive (1 pt each).
What is the genotype for the black fur (1 pt )
What is the genotypes for the brown fur (2 pts )
Answers
Answer:
Dominant: Brown colored fur
Recessive: Black colored fur
Black Fur Genotype: bb
Brown Fur Genotype: BB, Bb, or bB
Explanation:
B = Brown
b = Black
Cell walls in plant cells provide support and structure for the cell, allowing plants to 'stand up' without a skeleton. What are these walls made of?
A. Cellulose
B. Phospholipid bilayer
C. Cellulite
D. Cytoplasm
Answers
Answer:
Cellulose
Explanation:
Cell walls made of cellulose are only found around plant cells and a few other organisms. Cellulose is a specialized sugar that is classified as a structural carbohydrate and not used for energy. ... While cell walls protect the cells, they also allow plants to grow to great heights. You have a skeleton to hold you up.
Cell walls in plant cells provide support and structure for the cell. The cell wall of plants is made up of cellulose. The correct option is A.
What is a cell wall?
The cell wall is the outer covering of a cell. It is made up of different materials. It protects the cell from outer invasions. In plants, it is made up of cellulose.
Cellulose is a highly strong material, which gives the plant support and structure.
Thus, the correct option is A. Cellulose regarding the cell wall of plants.
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If it takes 160 grams of sugar to grow 10 grams of bacteria anaerobically, how many grams of sugar would be required to grow 10 grams of bacteria aerobically?
a. 10 grams: aerobic respiration is 16 times more efficient than anaerobic respiration
b. 5 grams: aerobic respiration is 32 times more efficient than 10 grams: aerobic respiration is 16 times more efficient than anaerobic respiration
c. 80 grams: aerobic respiration is 2 times more efficient than anaerobic respiration
d. 2 grams: aerobic respiration is 80 times more efficient than anaerobic respiration
e. 160 grams: there should be no difference in the amount of sugar required
Answers
The amount of sugar required to grow 10 grams of bacteria aerobically can be calculated based on the given information. The Correct option is B
If it takes 160 grams of sugar to grow 10 grams of bacteria anaerobically, then we can assume that it takes 16 grams of sugar to grow 1 gram of bacteria (160/10=16). This is the ratio for anaerobic respiration.
Aerobic respiration is more efficient than anaerobic respiration, meaning that less sugar is required to produce the same amount of bacteria. According to scientific studies, aerobic respiration is around 16 times more efficient than anaerobic respiration.
Therefore, we can divide 16 by 16 to get 1 gram of sugar required to grow 1 gram of bacteria aerobically. Multiplying this by 10 (the amount of bacteria we want to grow) gives us 10 grams of sugar required to grow 10 grams of bacteria aerobically.
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d. 2 grams: aerobic respiration is 80 times more efficient than anaerobic respiration
Respiration is a chemical reaction which takes place in all livings cells and releases energy from glucose. Anaerobic respiration occurs without oxygen and releases less energy but more quickly than aerobic respiration. Anaerobic respiration in microorganisms is called fermentation.
Aerobic respiration uses oxygen to break down sugar and produce energy for the cell, which is much more efficient than anaerobic respiration that does not use oxygen. Therefore, only a small amount of sugar is needed to produce the same amount of bacteria aerobically compared to anaerobically.
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Which best describes the two types of shared characteristics?
A 1 - characteristics that remain in the common ancestor and the modern organism
2 - characteristics that are new and have been modified from what was found in the
common ancestor
B 1 - characteristics that are new in the common ancestor and the modern organism
2 - characteristics that have been modified from what was found in the common
ancestor
C 1 - characteristics that have been modified in the common ancestor but not in the
modern organism
2 - characteristics that are new in both the common ancestor and the modern
organism
D 1 - characteristics that remain in the common ancestor and the modern organism
2 - characteristics that are new in both the common ancestor and the modern
organism
Answers
Answer:
characteristics that remain in the common ancestor and the modern organism. 2 - characteristics that are new and have been modified from what was found in the common ancestor. 1 - characteristics that remain in the common ancestor and the modern organism. ...Mar 11, 2020
Answer:
the answer is c
Explanation: