Answers
Answer: The options are not given, here are the options.
A.Yes; the transfer of genes from symbionts to the eukaryotic nucleus could have occurred during the last billion years of evolution.
B. Yes; this difference from bacteria is unimportant, because the many similarities between bacteria and mitochondria provide sufficient evidence in favor of the hypothesis.
C. No; the fact that mitochondrial proteins are made in the cytoplasm is convincing evidence that mitochondria do not have a bacterial origin.
D. No; because bacteria can make all their own proteins and mitochondria cannot, this disproves the hypothesis.
The correct option is B.
Yes; this difference from bacteria is unimportant, because the many similarities between bacteria and mitochondria provide sufficient evidence in favor of the hypothesis
Explanation:
From the passage, the protein synthesis abilities of bacteria and Mitochondria was spelt out.
Bacteria are unicellular organisms and they are prokaryotic. Bacteria do not have membrane bound organelles like Mitochondria as compared to Eukaryotic organisms.
Mitochondrial and bacteria have certain similarities which include, mitochondria have cell membranes like bacteria and they have circular genome like bacteria.
The similarities shows that most most proteins in mitochondria are made by cytoplasmic ribosomes from mRNA transcribed from nuclear genes.
Related Questions
following are the types of functions performed by proteins in the human body
Storage
Support
Regulation
Defence
Select the appropriate type of function of proteins for each of the given descriptions
Description Type of Function
1. Recognition of foreign molecules ????
2. Receptors of extracelluar signals ????
Answers
Answer:
1. Recognition of foreign molecules - Defense
2. Receptors of extracellular signals - Regulation
Explanation:
92ml 3.0 fl oz what is the ratio
Answers
The ratio between 92 mL and 3.0 fl oz is 46 : 44, or it can be further simplified to 23 : 22.
To find the ratio between 92 mL and 3.0 fl oz, we need to convert the units to a common measurement. Let's convert 3.0 fl oz to milliliters (mL).
1 fluid ounce (fl oz) is equal to approximately 29.5735 milliliters (mL).
Therefore, 3.0 fl oz is equal to 3.0 * 29.5735 = 88.72 mL (rounded to two decimal places).
Now we can express the ratio between 92 mL and 88.72 mL:
92 mL : 88.72 mL
Simplifying the ratio by dividing both sides by the greatest common divisor, we get:
46 : 44
So, the ratio between 92 mL and 3.0 fl oz is 46 : 44, or it can be further simplified to 23 : 22.
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how do molecules move through the ecosystem?
Answers
Answer:
Explanation:
Molecules are changed from organism to organism through the process of digestion to biosynthesis.
Help
Viruses, bacteria, fungi, and parasites are all different types of infectious agents that may cause disease. What do these agents have in common?
A. They can all be spread from one organism to another.
B. They can all be treated with an antibiotic.
C. They can all be prevented with a vaccine.
D. all of these
Answers
A hetero gous ail yellow plant is crossed with a homorygous short green. Show the genoype od phenotypes of the Fi offspring and the probability of each.
Answers
The genotype of the F1 offspring is YyTt, and the phenotype is yellow and tall. The probability of each phenotype in the F1 offspring is as follows yellow and tall is 1/2 or 50%, green and short is 1/2 or 50%.
The genotype and phenotype of the F1 offspringGenotype refers to the genetic makeup or combination of alleles present in an organism, while phenotype refers to the observable traits or characteristics expressed by an organism. Genotype represents the genes an organism carries, while phenotype represents the physical or observable features resulting from the interaction between genotype and the environment.
When a heterozygous ail yellow plant (genotype Yy) is crossed with a homozygous short green plant (genotype tt), the F1 offspring will have the genotype YyTt and the phenotype of yellow and tall. The probability of this phenotype occurring in the F1 generation is 50%. Additionally, there is a 50% probability of the F1 offspring having the phenotype of green and short.
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What type of boundary is this?
Answers
The image represents the continental-continental boundary. When two continental plates collide, that's another kind of convergent plate boundary. The continental lithosphere is very thick and has a low density. The continental lithosphere cannot subduct. So when two mainland plates impact, they simply crush together.
Plate tectonic boundaries come in three varieties: plate boundaries that are transformed, divergent, and convergent. The three primary types of plate boundaries are depicted in this image: transform, convergent and divergent.
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Which of the following particles has no charge?
O A. Electron
O B. Neutron
C. Proton
D. Ion
Answers
Answer:
B. Neutron.
Explanation:
\({ \tt{ {}^{1} _{0}{ \huge{n}} }}\)
Describe the evolution of the okapi and giraffe. Include the role of natural selection.
Answers
The evolution of the okapi and giraffe regarding the role of natural selection is associated with differential survival and reproduction to adapt to specific niches.
What are specific niches in terms of animal evolution?The expression of specific niches in terms of animal evolution refers to the ability of a species to use the available resources to survive and reproduce, which leads to change or evolution across time.
Therefore, with this data, we can see that specific niches in terms of animal evolution can explain the difference between okapi and giraffes.
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1. What has to be added to a substance to cause a phase change?
Answers
Answer:
To cause a phase change, you either add heat energy to a substance to cause it to evaporate, melt, or sublimate, or you subtract heat energy, or take it away, to make the substance freeze or condense. Hope it helps!
Explanation:
Carmen conducted an experiment to determine if listening to different types of music would affect a person’s pulse. Her hypothesis was that pulse rate would change with different types of music. Each person listened to seven different selections of music for 30 seconds each. Each person’s pulse was taken before the music and then after each 30-second interval of music. The pulses were taken again after the music selections were completed. Based on her experiment, Carmen concluded that a person’s pulse rate changed when the person listened to different types of music
What can Carmen do to make her experiment more reliable?
A. add another variable to test
B. repeat the experiment several times
C. decrease the amount of time the test subjects are exposed to the music
D. putting each test subject in a different location while they listen to the music
Answers
What do a Salamander and a Tuna have in common? *
Answers
Answer:
DNA structure
Explanation:
zfzgzv hv jvc ncxgheagkz j my
What effective control measures would you recommend to these farmers against nematode parasites?
Answers
Answer:
Nematode parasites can cause significant damage to crops and reduce yield, so it is important for farmers to take effective control measures. Here are some recommendations that farmers can consider:
1. Crop rotation: Farmers can rotate their crops with non-host plants to break the nematode life cycle. This helps to reduce the population of nematodes and prevent them from building up in the soil.
2. Soil solarization: This involves covering the soil with a clear plastic sheet during the hot summer months to increase the temperature of the soil and kill nematodes.
3. Biocontrol agents: Certain predatory microorganisms and beneficial nematodes can be effective in controlling plant parasitic nematodes. These biocontrol agents can be applied to the soil to help suppress nematode populations.
4. Nematicides: Chemical nematicides can be used to kill nematodes, but they should be used judiciously as they can have negative environmental impacts and may harm other organisms in the soil.
5. Sanitation: Farmers should practice good sanitation practices such as removing infected plant debris and cleaning tools and equipment to prevent the spread of nematodes.
6. Resistant varieties: Planting resistant crop varieties can help reduce the damage caused by nematodes.
7. Soil improvement: Maintaining soil health through practices such as adding organic matter can improve soil structure, fertility, and water-holding capacity, making it less hospitable to nematodes.
By implementing these control measures, farmers can effectively manage nematode infestations and protect their crops from damage.
Answer:
Explanation:
ome effective control measures against nematode parasites, such as crop rotation, use of resistant crop varieties, biological control methods, soil solarization, and chemical control using nematicides. Here are some links for further reading:
Brainliest pls
Pls help me solve this. Preferably ASAP
Answers
Answer:
c bone marrow and rbc i think correct me if I'm wrong
In many US cities and suburban areas, street gangs account for approximately 50 to 90 percent of the violent crimes committed.
O A.
OB.
True
False
Answers
Because While street gangs can be responsible for a significant portion of violent crimes in some areas, it is not accurate to say that they account for approximately 50 to 90 percent of violent crimes in many US cities and suburban areas. The extent to which street gangs are responsible for violent crimes varies widely by location, and it is difficult to generalize across different regions and populations. Additionally, other factors such as poverty, drug use, and access to firearms can also contribute to high rates of violent crime in certain areas. It is important to carefully evaluate the available data and research when making claims about the extent and nature of gang-related crime in any particular location
Answer:
False
This statement is not entirely true. While street gangs can be responsible for a significant portion of violent crimes in some US cities and suburban areas, the percentage varies greatly depending on the location. According to the National Gang Center, some cities report that street gangs account for as little as 5% of violent crimes, while others report up to 90%. Therefore, it is not accurate to make a blanket statement that street gangs account for approximately 50 to 90 percent of violent crimes in all US cities and suburban areas.
A patient's medical chart indicates that they are producing insufficient amounts of gastrin. What symptom would be expected?
a. Low blood cell count
b. difficulties digesting
c. irregular heart beat
d. trouble urinating
Answers
Answer: difficulties digesting!
Explanation:
Select the two substances that are reactants in the chemical process that releases energy in cells.
A
carbon dioxide
B
oxygen
C
water
D
sodium
E
glucose
F
potassium
Answers
Explanation: its D sodium because i know that
Photosynthesis occurs inside of which organelle? a chloroplasts b the cell wall c mitochondria d ribosomes
Answers
Answer/Explanation:
Chloroplasts are the organelle that uses chlorophyll. Chlorophyll is in the process of photosynthesis.
Members of a class that have the most in common are put into similar groups called an
Answers
Answer:
association
Explanation:
Pls brainliest :)
1.The chemical equation for photosynthesis is 6CO2 + 12H20 + light energy= C6H1206 +602 + 6H2O
True
False
Answers
Answer:
False
Explanation:
It's this:
6CO₂ + 6H₂O + light energy ⇒ C₆H₁₂O₆ + 6O₂
If there were 12 H₂O molecules, the equation would be unbalanced.
Have a great day!
A hypothesis is only useful if it is
measurable
testable
general in all situations
right
(Select all that apply.)
Measurable
Testable
General in all situations
Right
Answers
Answer:
Measurable
Testable
General in all situations
Explanation:
It doesn't have to be right, a hypothesis is just an educated guess.
For the general in all situations, it all depends on how general it is, but the hypothesis should just be a broad guess.
1. made of DNA holds genetic information
3. This type of ER transports and modifies lipids
4. type of respiration that does not use oxygen
6. Found only in plant cells, this surrounds the cell
8. the jelly like area in cell that hold organelles
13. type of transport that does not require energy
14. nerves that regulate responds to stimuli
Answers
Answer: im not sure
Explanation:
Why does a cat comes near when show it milk and runs away when you show it stick ?
Answers
Cats have evolved certain behaviors that are influenced by their natural instincts and experiences.
When a cat sees milk, it may be attracted to it because it contains nutrients that are important for its survival, and the cat may associate the presence of milk with positive experiences. This can include nursing from its mother as a kitten or catching and consuming prey that contains milk or milk products.
On the other hand, when a cat sees a stick, it may perceive it as a threat or danger, and may associate it with negative experiences, such as being hit or attacked by a predator. This can trigger the cat's natural instinct to flee or hide from potential danger, as a survival mechanism.
Overall, a cat's behavior is influenced by its instincts, past experiences, and environmental cues. It may approach things that it perceives as positive or beneficial, and avoid or flee from things that it perceives as dangerous or threatening.
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Select the correct answer from each drop-down menu.
In an experiment, Dr. Travis examined the effects of calcium intake on osteoporosis, a condition that causes an increased risk of bone fractures. The amount of calcium is variable. The risk of bone fractures .
Answers
Answer:
the amount of calcium is variable.
Explanation:
osteoporosis is an illness that is caused by lack of calcium in a person's body.
For this assignment, you will first research energy resources in your area. Next, you will gather
information about the political, economic, and environmental effects of the worldwide distribution and use
of the resources you use in your community. Then, you will develop a long-term sustainability plan for
your community. Finally, you will create a multimedia presentation of your sustainability plan.
Background Information
Many states and localities have a number of renewable and nonrenewable resources. Renewable
resources include those that can be replaced faster than they are used: solar power, wind power, timber,
and oxygen are just a few examples. Nonrenewable resources cannot be easily replaced. They are used
at a faster rate than they are created. These include oil, natural gas, coal, minerals, and precious metals.
Many states, municipalities, and businesses have sustainability plans. These are guidelines to avoid
depletion of natural resources to maintain balance in Earth's biological systems. As Earth's population
increases, humans will need to continually work to minimize their impact on the planet's resources. A
sustainability plan outlines specific actions and goals that will aid in this important work.
On a global scale, countries create their own sustainability plans because the global distribution of
resources have political, economic, and environmental effects. Their sustainable plans help them manage
resources and the effects of using these resources. The global distribution of resources also affects
states and communities. Sustainability plans involve details outlining how political, economic, and
environmental issues will be addressed.
Answers
The sustainability plan for my community involves replacing non-renewable energy sources like cola with renewable energy sources like solar and wind energy.
What is a sustainability plan?A sustainability plan outlines strategies for sustaining the program, activities, and partnerships and serves as a road map for accomplishing long-term objectives.
A community sustainability plan serves as a guide for creating a location where people can live, work, and play that is socially just, economically viable, and environmentally sound.
Programs for recycling and composting, renewable energy initiatives, and the use of community green teams to identify and prioritize sustainability requirements are some examples.
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Describe how the placenta keeps the young alive before birth.
Answers
Answer:
Blood from the mother passes through the placenta, filtering oxygen, glucose and other nutrients to your baby via the umbilical cord. The placenta also filters out substances that could be harmful to your baby and removes carbon dioxide and waste products from your baby's blood.
Explanation:
hope this helps loll!
Select 3 that apply.How do snakes get their food? Select all that apply.1. through their fangs with poison that paralyzes their prey2. by swallowing their prey whole3. by wrapping themselves tightly around their prey4. through filter feeding5. by sucking blood of their host.
Answers
Snakes are carnivorous. That means that they eat other animals. Snakes do not have the right kind of teeth to chew their food so they must eat their catch whole.
So snakes can get their food in different ways:
1. through their fangs with poison that paralyzes their prey:
Poisonous or venomous snakes inject poison or venom into their prey. This starts the digestive process even before the snake swallows that food.
2. by swallowing their prey whole:
Their jaw is structured in such a way that it allows the mouth to open wider than their own body in order to swallow their prey whole.
Once swallowed, the muscles of their body and their hook-shaped teeth help push the food toward the stomach. The food is then digested over a long period of time
3. by wrapping themselves tightly around their prey:
The snake will then wrap one or two loops around the prey, forming a constriction coil. The snake will monitor the prey's heartbeat to ascertain when it is dead.
So the correct options are 1,2 and 3
How is selective pressure related to evolution?
A. Selective pressure can be a driving force of evolution.
B. Selective pressure is the same as evolution.
C. Selective pressure ensures that evolution has an end product.
D. Selective pressure causes evolution to proceed randomly.
Answers
Selective pressure can be a driving force of evolution; option A.
What is selective pressure?Selective pressure refers to external forces which affect an organism's ability to survive in a given environment.
Selective pressure can either decrease or increase the occurrence of a trait.
Therefore, selective pressure can be a driving force of evolution.
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¿Cuál es el rol de la genética microbiana en el contexto de la Biología?
¿Qué aplicaciones tiene la Genética Microbiana hoy en día?
¿En qué consiste el protagonismo de la Genética microbiana en el devenir histórico de la Biología?
Answers
Answer:
- La genética microbiana ha sido fundamental para la comprensión de diferentes mecanismo genéticos y evolutivos
- Los microrganismos son ampliamente utilizados en medicina y procesos biotecnológicos
- La microbiología ha permitido descartar la teoría de la generación espontanea (anteriormente aceptada en biologia) como así también formular nuevas teorías (hoy en día ampliamente aceptadas por la comunidad científica)
Explanation:
La genética microbiana juega un papel fundamental en biología, ya que los organismos microscópicos (por ejemplo, bacterias) poseen características únicas para el estudio de mecanismos genético/moleculares tales como, por ejemplo, 1-un corto tiempo generacional y 2-la capacidad de manipulación de un número de organismos muy alto (N muestral) en un laboratorio. En consecuencia, los microrganismos permiten estudiar mecanismos genéticos y evolutivos con mayor grado de precisión y versatilidad al ser comparados con organismos pluricelulares. La microbiología ha permitido el desarrollo de técnicas esenciales en el campo de la biología molecular: la técnica de edición genómica CRISPR-Cas9 se basa en el sistema adaptativo que poseen ciertas bacterias para hacer frente a infecciones virales. La biotecnología microbiana ha permitido también desarrollar diferentes tipos de alimentos y procesos biotecnológicos (por ejemplo, la cerveza y ciertos productos lácteos requiere la utilización de microrganismos para llevar a cabo el proceso de fermentación). Por otra parte, mediante técnicas de recombinación genética podemos explotar las características de los microrganismos para producir a gran escala ciertos productos biotecnológicos y medicinales (por ejemplo, producir insulina para uso humano). La microbiología emergió en la segunda mitad del siglo XIX y desde entonces ha posibilitado el desarrollo de importantes avances para el tratamiento y cura de enfermedades infecciosas, como así también descartar teorías tales como la generación espontánea y generar nuevos conocimientos en el campo de la biología y la genética (por ejemplo, el descubrimiento que el ADN se replica de manera semiconservativa fue realizado utilizando cepas de E. coli).
Stars form from what celestial objects ?
Answers
Stars are born within the clouds of dust and scattered throughout most galaxies. A familiar example, a dust cloud is the Orion Nebula. Turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction. Stars begin their lives as clouds of dust and gas called nebulae. The gravity of a passing star or the shock wave from a nearby supernova may cause the nebula to contract. Matter in the gas cloud will begin to coalesce into a dense region called a protostar.
Mary is in the lab studying the bones shown in the picture below. Tom says she is doing comparative anatomy because she is doing what?
A- looking at fossils of organisms that have gone extinct
B- looking at embryos of unrelated living organisms
C- looking at similarities and differences in the structures of different species
D- looking at sexual dimorphism of sexually reproducing species
Answers
Answer: c
Explanation: the bones shown are all leg bones but from different species
Mary is doing comparative anatomy as she is looking at the differences and similarities in the structures of distinct species.
What is comparative anatomy?It is the study of the similarities and differences in the anatomy of distinct species. It is closely associated with phylogeny evolution and evolutionary biology. In this, the comparative study of the body composition of distinct species of animals is done in order to comprehend the adaptive variations they have gone through in the course of evolution.
Comparative anatomy has assisted in the classification of animals, and has provided proof of common descent. Therefore, in the given case, Mary is performing comparative anatomy by studying leg bones of different mammals.
Thus, the correct answer is option C.
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