Directions: Write the word TRUE if the statement is correct and if not, underline the word or statement incorrect and correct answer on the space provided.
write
1. All x-ray are dangerous because they can damage healthy living cells of the body.
2. Ultraviolet in sunlight radiation produces vitamin D in the skin and gives us tanning effect
3. Microwaves can penetrate the atmosphere of the earth.
4. Radio wave used to transmit sound and picture information over long distance.
5. Infrared wave also damage cells, causing mutation.
6. Gamma rays is absorbed by water molecules, so it can be used for cooking.
7. Over-exposure to UV radiation may cause skin cancer.
8. Low frequency waves are suitable for communication over great distances.
9. Most EM waves are visible to the eye of humans and animals.
10. Visible light are used by banks to check the signature on a passbook.
Modified True or False.
Answers
Answer:It can come from unstable atoms that undergo radioactive decay, or it ... Ionizing radiation can affect the atoms in living things, so it poses a health risk by ... Ionizing radiation comes from x-ray machines, cosmic particles from ... However, as with alpha-emitters, beta-emitters are most hazardous
Explanation:
Related Questions
7. A hen's egg with the shell dissolved is placed in a 10% salt solution. Relative
to the interior of the egg the salt solution is
A. Hypotonic
B. Isotonic
C. Hypertonic
D. Semi-permeable
Answers
The salt solution is Hypertonic.
Hypertonic fluids contain a higher concentration of solute compared to plasma and interstitial fluid.What is hypertonic solution?A solution that contains more dissolved particles than is found in normal cells and blood.Cells placed in hypertonic solution will shrink. Water moves from a high water concentration inside the cell to a low water concentration outside of the cell by osmosis.What is osmosis?Osmosis is the movement of water molecules from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules, through a cell's partially permeable membrane.Osmosis is a passive transport process during which water moves from areas where solutes are less concentrated to areas where they are more concentrated.To know more about osmosis here
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Genetic engineering involves _ to achieve desired results
a enzyme production
b. modifying products and processes
c changing one organism into another
d introducing traits into organisms
Please select the best answer from the choices provided
Ο Α
OB
0 С
OD
Answers
Answer:
The answer is option D.
Hope this helps.
Answer:
The answer is Introducting traits into ogranisms. or D
Explanation:
is influenza a unicellular organism
Answers
Answer:
no viruses are not considered living
Explanation:
Answer:
No
Explanation:
influenza is an infection (viral) caused by the influenza virus.
the influenza virus is a particle (acellular) thus not made up of cells
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which of the following describes species diversity of a community?
the number of different species present in the community
the measure of species richness and relative abundance of different species
the measure of species richness and relative abundance of different specie
the number of mutualistic interaction in a community
Answers
Answer:
A
Explanation:
It does not matter what species are on the area. the more variety there is, the more diverse.
Species diversity of a community can be defined as the measure of species richness and relative abundance of different species.
A community is a group of organisms from different species that live in the same ecosystem and interact with one another.Species diversity in the community can be defined as the combination of species richness and species (relative) abundance.Species richness indicates the number of species in the community.Species abundance refers to the number of individuals of each species present in the community.In conclusion, the species diversity of a community is denoted by both the species richness and relative abundance of different species present in the community.
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B. Write 'T' for true and 'F' for false.
1. Deforestation leads to desertification.
2. Cutting of trees does not affect the soil layer.
3. Endemic species can be found anywhere in the world.
4. The red data book contains list of endangered species.
5. Extinct species are those which do not exist on Earth anymore.
Answers
Answer:
1 True
2 False
3 False
4 True
5 False
If a person has type O blood what types of blood could they not receive
Answers
Answer:
If the person has type O- Blood they cannot receive blood from anyone other than O- blood carriers.
Explanation:
O- is a universal donor so their blood is compatible to give to any blood type however they can only receive their own blood type.
Answer:
Blood type O has res blood cells with no antigents on them. This means that witin the blood antibodies that bind A and B antigens are present. An O negative person can only receive O negative red blood cells.However, an O negative person can receive any type of non-red cellblood product such as plasma or platelets.
Which of the following lists the base pairs in DNA correctly?
A + T and C + G
A + G and C + T
G + T and A + C
A + T + C + G
Answers
When sea levels rise as rapidly as they have been, even a small increase can have devastating effects on coastal habitats farther inland. It can cause destructive erosion, wetland flooding, aquifer and agricultural soil contamination with salt, and lost habitat for fish, birds, and plants. What happens to biodiversity in coastal communities as the sea level rises?
Answers
Biodiversity decreases because plants and animals adapted for fresh water will not survive and reproduce in a different environment.
What is sea rise?The term sea rise has to do with a situation in which there is a sudden increase in the sea level. This could lead to a sudden overflow of water into rivers lakes and ponds.
We know that sea water is salty, there is excess salt concentration in a sea water while fresh water does not contain salt at all. In these cases whereby there is an overflow of seawater, the water carries salt along with it. This implies that land and fresh water could become contaminated with this salt and that would have catastrophic effects on these ecosystems.
Since fresh water organisms can not tolerate a sudden increase in the concentration of salt in the ecosystem, biodiversity decreases because plants and animals adapted for fresh water will not survive and reproduce in a different environment.
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MISSING PARTS
When sea levels rise as rapidly as they have been, even a small increase can have devastating effects on coastal habitats farther inland. It can cause destructive erosion, wetland flooding, aquifer and agricultural soil contamination with salt, and lost habitat for fish, birds, and plants. What happens to biodiversity in coastal communities as the sea level rises?
A
Biodiversity increases due to the merging of salt water and fresh water ecosystems.
B
Biodiversity decreases because plants and animals adapted for fresh water will not survive and reproduce in a different environment.
C
Biodiversity decreases because there are fewer salt water species than there are fresh water species.
D
Biodiversity increases due to the survival of both fresh water and salt water species.
How does the immune system work with other body systems to protect the body from pathogens?
Answers
Answer:
integumentery system
Explanation:
your skin is actually the first protection against illness-causing pathogens.
If a planet in our solar system is a gas giant planet it is near the sun. If a planet in our solar system is a gas giant planet it is far from the sun. If a planet in our solar system is a gas giant then it is near or far from the sun. Which is correct?
Answers
Answer: I think it's If a planet in our solar system is a gas giant planet it is far from the sun
which body system is most likely to be affected by exposure to radiologic material?
Answers
The body system that is most likely to be affected by exposure to radiologic material is the central nervous system.
The central nervous system, which includes the brain and spinal cord, is responsible for controlling and coordinating all bodily functions. It is also the most sensitive to radiation exposure.
High levels of radiation can damage or kill nerve cells, which can lead to a variety of neurological problems, including seizures, headaches, and cognitive impairment. Additionally, radiation exposure can also increase the risk of developing brain tumors or other types of cancer. Therefore, it is important to take precautions to limit exposure to radiologic material and protect the central nervous system.
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This system releases water and waste though our skin ___ system
pls help
Answers
4. Explain what a tradeoff is and give an example.
Answers
Answer:
The definition of trade off is an exchange where you give up one thing in order to get something else that you also desire. An example of a trade off is when you have to put up with a half hour commute in order to make more money.
Explanation:
A substance that causes pigment particles to adhere to one another and attach to the surface of a painting is known as a __________.
Answers
A substance that causes pigment particles to adhere (stick) to one another and remain attached to the surface of a painting is called a: binder.
What is painting?Painting can be defined as a process that involves coating the surface of an object or body, especially through the application of a paint.
In painting, color is most notably and primarily provided by pigment.
What is a binder?
A binder can be defined as a substance that causes pigment particles to adhere (stick) to one another and remain attached to the surface of a painting.
In conclusion, a binder is a substance that makes it possible for pigment particles to stick completely together to one another and remain attached to the surface of a painting.
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What is a model that uses DNA comparisons to see how long two different organisms have been evolving independently from each other?A. molecular clock hypothesisB. phylogenetic treeC. cladogramD. evolutionary tree
Answers
A model that uses DNA comparisons to see how long two different organisms have been evolving independently from each other is referred to as molecular clock. It makes use of a genetic material that go through mutation. This is used to calculate the time of evolution between two different organisms.
A phylogenetic tree is also called as evolutionary tree. It is a diagram used to illustrate the lines of evolutionary descent of various species from a common ancestor. A cladogram is is a diagram that illustrate the relationships of various froups of taxa.
Answer - A. molecular clock hypothesis
Metabolic rate is _____. See Concept 40.4 (Page) View Available Hint(s) Metabolic rate is _____. See Concept 40.4 (Page) determined when the organism is vigorously exercising after consuming a fatty meal the total amount of energy an animal uses in a unit of time typically higher in an ectothermic animal than in an endothermic one the amount of heat gained by an animal in a unit of time directly proportional to body size
Answers
Answer:
The correct answer is ''the total amount of energy an animal uses in a unit of time''
Explanation:
The general metabolism or metabolic requirements can be defined as the energy demands that an organism requires for the set of biochemical reactions and physicochemical processes that occur in its cells. This set of reactions allows living beings to grow, reproduce, keep their physical structures in order and respond to external stimuli, among other things. Basal metabolism or Metabolic Rate (BMR) refers to the rate of energy expenditure (the amount of energy [expressed in kilocalories or megajoules (MJ)]) per unit of time that is spent when endothermic animals are in physical rest full. In other words, it is the amount of heat (expressed in calories) that is generated in one hour by an endothermic animal kept at rest. Also, it can be expressed as kilocalories per hour or per kilogram of weight.
What happens to oxygen, glucose, and amino acid molecules in a healthy person?
Answers
Answer:
Oxygen plays a very important role in our body, oxygen along with nutrients from the food to create Adenosine triphosphate, which is used as a fuel for cell functions. Glucose is the main source of energy for cells and organs of body. The stored form of glucose is called glycogen. Amino acids play an important role in metabolic pathway, gene expression. They are they building blocks of proteins and make up 75% of the body.How is aerobic cellular respiration different from fermentation?
Answers
Answer:
Aerobic respiration is a metabolic process that occurs in the presence of oxygen while fermentation is a catabolic process that occurs in the absence of oxygen.Explanation:
A man and a woman have 24 children. Of the children, 17 have freckles and 7 don’t have freckles. What are the genotypes of the parents? Why?
Answers
The genotype in this case should be likely to heterozygous for the freckles gene which is denoted as by F1.
This is because 17 of the 24 children have dots, which suggests that the parents are both carriers of the allele for dots. This means that at least one of the parents must have the Ff genotype, which allows them to pass the allele for dots on to their children. still, since 7 of the children don't have dots, this suggests that the other parent has at least one sheepish allele, denoted as ff.
This means that the other parent must have the Ff or ff genotype. The Ff and ff genotypes are the most likely for the parents in this script because it would explain the 17 children with dots and the 7 children without them. This is because the F1 genotype would produce children with a 50 chance of getting the allele for dots, and the ff genotype would guarantee that none of the children will have dots.
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hich of the following correctly describes transformation? (SELECT ALL THAT APPLY) This mechanism of genetic transfer always involves a one-way transfer from a donor cell to a recipient cell. This mechanism requires cell-to-cell contact. This mechanism was first explored by Griffith as he studied smooth and rough strains of Streptococcus pneumoniae. This mechanism may result in the transfer of genes that encode antibiotic resistance. A virus that infects bacteria is a key component in this transfer mechanism. Extracellular DNAases (enzymes that degrade DNA) would block this transfer mechanism.
Answers
The following correctly describes transformation: This mechanism may result in the transfer of genes, This mechanism was first explored by Griffith, Extracellular DNAases.
An organism can integrate DNA from another creature into its own genome through the process of transformation.
The transition described here is accurate: Genes encoding antibiotic resistance may be transferred as a result of this process. Griffith originally looked at this process when researching smooth and rough strains of Streptococcus pneumoniae. DNA-degrading enzymes called extracellular DNAases would prevent this transfer mechanism from working.
So, these are the best choices: Genes encoding antibiotic resistance may be transferred as a result of this process. Griffith originally looked at this process when researching smooth and rough strains of Streptococcus pneumoniae. DNA-degrading enzymes called extracellular DNAases would prevent this transfer mechanism from working.
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Completequestion:
Which of the following correctly describes transformation? (SELECT ALL THAT APPLY)
This mechanism of genetic transfer always involves a one-way transfer from a donor cell to a recipient cell.
This mechanism requires cell-to-cell contact.
This mechanism was first explored by Griffith as he studied smooth and rough strains of Streptococcus pneumoniae.
This mechanism may result in the transfer of genes that encode antibiotic resistance.
A virus that infects bacteria is a key component in this transfer mechanism.
Extracellular DNAases (enzymes that degrade DNA) would block this transfer mechanism.
. What is the main difference between the outer core and the inner core of the Earth? The inner core is mostly solid iron, the outer core is mostly liquid nickel. The inner core is solid iron and nickel and the outer core is liquid iron and nickel. The inner core is cooler because it's solid and the outer core is hotter and liquid. The inner core is hotter and liquid and the outer core is cooler and solid.
Answers
Answer:
A) The inner core is mostly solid iron, the outer core is mostly liquid nickel
Explanation:
The outer core of the Earth is made up of liquid iron and nickel, while the inner core is solid due to the extremely high temperatures and pressures present there. Thus, option A is correct.
What is the major difference in earth core?The inner core's temperature is far higher than iron's melting point. The inner core isn't molten or even liquid, in contrast to the outer core.
The pressure surrounding the inner core, as well as the planet's atmosphere, keeps the iron from melting.
The inner core and the outer core make up the core, which is the Earth's innermost layer. The layer of heated liquid that surrounds the inner core is called the outer core, whereas the inner core comprises solid metal.
Therefore, The inner core is mostly solid iron, the outer core is mostly liquid nickel.
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The amount of air that is moved between the atmosphere and alveoli in 1 minute is Multiple Choicea. pulmonary ventilation. b. alveolar ventilation.c. internal respiration.d. airflow. e. external respiration.
Answers
The amount of air that is moved between the atmosphere and alveoli in 1 minute is referred to as pulmonary ventilation, which is option (a).
What is pulmonary ventilation and what does it refer to?
Pulmonary ventilation is the process of moving air in and out of the lungs, which is also known as breathing. It is responsible for the exchange of gases between the atmosphere and alveoli, the tiny air sacs in the lungs where oxygen is taken up by the blood and carbon dioxide is released from the blood.
The amount of air moved between the atmosphere and alveoli in 1 minute is known as minute ventilation and is typically expressed in liters per minute. It is calculated by multiplying the tidal volume, the amount of air inspired and expired in one breath, by the respiratory rate, the number of breaths per minute. Therefore, option a is the correct.
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does blood on the right never mixes with blood on the left, once the heart is fully developed.?
Answers
Answer:
Blood on the right never mixes with blood on the left, once the heart is fully developed.
Explanation:
The right and left sides of the heart are separated by a muscular wall that prevents blood without oxygen from mixing with blood that has oxygen.
in a musculoskeletal lever system, what force does the muscle contraction provide?
Answers
In a musculoskeletal lever system, the force that the muscle contraction provides is the effort force.
Musculoskeletal lever system refers to the arrangement of muscles and bones that creates a lever, where the muscle provides the force needed to move the bone. Levers consist of a rigid object that pivots around a fixed point known as a fulcrum. In musculoskeletal levers, the fulcrum is the joint, and the bone acts as a lever. The muscle is attached to the bone, and when it contracts, it provides the force required to move the bone.The force that the muscle contraction provides is known as the effort force, which is the force required to lift or move a load.
The effort force in a musculoskeletal lever system is provided by the muscle, which is contracted when the joint is moved. The load is the weight of the object being lifted or moved, and it is located at the opposite end of the lever. The effort force is required to overcome the resistance of the load, and the force required depends on the distance between the effort and load, and the position of the fulcrum.
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Students in Mr. Taylor’s class read in their textbook that most dead animals do not become fossils. A short video helps the students to better understand what must take place for a dead animal to become a fossil. Which statement best describes what must happen shortly after an animal dies to form a fossil?(1 point) Responses A dead animal is carried away by erosion. A dead animal is carried away by erosion. A dead animal needs to be covered with silt or mud. A dead animal needs to be covered with silt or mud. A dead animal must be covered with water. A dead animal must be covered with water. A dead animal begins to rot and decay.
Answers
Answer:
A dead begins to rot and decay so it will be easy to become fossil . in addition to that animal must cover with silt and mud so it will be easly decay. but the most probable answer is
A dead animal begins to rot and decay.
gut microbiota regulate alzheimer’s disease pathologies and cognitive disorders via pufa-associated neuroinflammation
Answers
The gut microbiota has emerged as a potential therapeutic target for Alzheimer's disease and cognitive disorders. Modulating the gut microbiota through dietary interventions, probiotics, or fecal microbiota transplantation may help regulate neuroinflammation and improve cognitive outcomes.
Yes, gut microbiota can regulate Alzheimer's disease pathologies and cognitive disorders through pufa-associated neuroinflammation.
The gut microbiota refers to the collection of microorganisms residing in our gastrointestinal tract.
Research has shown that these microorganisms play a crucial role in maintaining the health and function of our brain.
One mechanism through which the gut microbiota can influence Alzheimer's disease and cognitive disorders is by modulating neuroinflammation.
Neuroinflammation refers to inflammation in the brain, which is known to contribute to the development and progression of Alzheimer's disease.
The gut microbiota produces certain compounds, such as short-chain fatty acids and polyunsaturated fatty acids (PUFAs), which can affect the inflammatory response in the brain.
PUFAs, in particular, have been implicated in neuroinflammation and cognitive function.
Studies have shown that alterations in the gut microbiota can lead to dysregulation of PUFAs, which can then contribute to neuroinflammation and cognitive impairments seen in Alzheimer's disease.
The specific mechanisms by which PUFAs modulate neuroinflammation are still being studied, but it is believed that they can affect the activation of immune cells and the release of inflammatory molecules in the brain.
Overall, the gut microbiota has emerged as a potential therapeutic target for Alzheimer's disease and cognitive disorders.
Modulating the gut microbiota through dietary interventions, probiotics, or fecal microbiota transplantation may help regulate neuroinflammation and improve cognitive outcomes.
However, more research is needed to fully understand the complex interactions between the gut microbiota, PUFAs, and neuroinflammation in the context of Alzheimer's disease.
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For each sequence of DNA is shown. Write the complementary RNA sequence underneath the letters, thenuse the codon chart to determine the amino acid sequence:DNA → T A C C A T G G A A T T A C T
Answers
Answer:
DNA → TACCATGGAATTACT
RNA → AUGGUACCUUAAUGA
PROTEIN → Methionine-Valine-Proline-Stop codon-Stop codon (AUG GUA CCU UAA UGA)
Explanation:
In nucleic acids (i.e., DNA and RNA), base complementarity refers to the interaction between antiparallel strands. In the double helix DNA molecule, adenine always interacts with thymine (uracil in RNA), while cytosine always interacts with guanine. Moreover, amino acids are encoded by codons, i.e., triplets of nucleotides in the messenger RNA (mRNA). Finally, stop codons are triplets of mRNA nucleotides (e.g., UAG, UAA, UGA) that indicates the end of the protein-coding sequence.
For converting a sequence from mRNA to the original DNA code, apply the rules of complementary base pairing: Cytosine (C) is replaced with Guanine (G) – and vice versa. Uracil (U) is replaced by Adenine (A) Adenine (A) is replaced by Thymine (T).
DNA → TACCATGGAATTACT
RNA → AUGGUACCUUAAUGA
PROTEIN → Methionine-Valine-Proline-Stop codon-Stop codon (AUG GUA CCU UAA UGA)
A Complementary strand of RNA?
Complementary RNA (cRNA) is a copy of a strand of RNA that will bind to the appropriate region of the original molecule. If the original RNA stand had a base sequence of AUU, for example, the sequence of the cRNA strand would be UAA.
Proteins can be made from 20 different kinds of amino acids, and the structure and function of each protein are determined by the kinds of amino acids used to make it and how they are arranged.
Therefore, the sequence of RNA codon RNA → AUGGUACCUUAAUGA.
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Which of the following is an example of a nonsense mutation?
a
A substitution of glycine amino acid for a stop codon
b
An insertion or deletion of nucleotides that is not a multiple of three
С
A substitution of a serine amino acid for a glycine amino acid
d
A codon mutated from CCG to CCA, both coding for glycine
Answers
Answer:
i really dont know but i think C
I have three electron shells ,and one valence electron , who am I .
Answers
Answer:
lithium atom have three electron shells
!!!PLEASE HELP 80 POINTS!!!
There are 10 answers to this one question.
When typing your answers for this question, please put a number in front of your written response to show which question you are answering.
Example: question #1 and #2.
1. RR
2. Rr
Fill in the Punnett Square using the following information:
Mom has the recessive gene for attached earlobes (e).
Dad has the dominant gene (E) for unattached earlobes. Dad is a heterozygous. (Ee).
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Answers
Answer:
1.e 2.e 3.E 4.e 5.Ee 6.Ee 7.ee 8.ee 9.Ee 10.ee
Explanation:
i did this in school
Answer:
1. e
2. e
3. E
4. e
5. Ee
6. Ee
7. ee
8. ee
9. 1:1
10. 1 unattached earlobe : 1 attached earlobe
Explanation:
Genotype is the alleles, Phenotype is the physical representation