the endosymbiont theory proposes a model for the evolution of mitochondria. according to the model, an ancestral eukaryote engulfed a small, free-living prokaryotic organism. the engulfed prokaryote then formed an endosymbiotic relationship with the eukaryotic host. which of the following observations best supports the model?

Answers

Answer 1

Answer:

Mitochondria and some prokaryotes share similar metabolic reactions that produce ATP.

Correct. The observation that mitochondria and some prokaryotes share similar metabolic reactions that produce ATP supports the model that mitochondria are endosymbionts that originated from a free-living prokaryote.

Explanation:

BRAINLIEST?


Related Questions

The main goal of photosynthesis is to produce what?

Answers

Answer:

To spread carbon dioxide and oxygen.

Explanation:

Plants produce carbon dioxide and oxygen. This is called photosynthesis.

1. Transcription happens in the _______ and translation happens at the _________.
a. mitochondria, chloroplasts
b. chloroplasts, mitochondria
c. nucleus, ribosome
d. ribosome, nucleus

2. Proteins are long chains of _________ assembled by _____ bringing them to the ribosomes.
a. nucleotides, mRNA
b. mRNA, nucleotides
c. amino acids, tRNA
d. tRNA, amino acids

3. What are three amino bases on the mRNA strand that codes for a specific amino acid is? What is the complementary bases on a tRNA molecule called?
a. Genetic code, DNA
b. DNA, RNA
c. Codon, anticodon
d. bird, dog

Answers

Answer:

1. C

2. C

3. C

Explanation:

Hope this helps.

2- El electron ocupa el nivel
de menor energia que se
encuentran libre falsa o verdadera

Answers

verdad

porque si estos tuvieran carga positiva ya no serían electrones

the mycelium is a mesh of filaments, each of which is called

Answers

The mycelium is a mesh of filaments, each of which is called a hypha

at what point in sperm production do you hypothesize that loss of the testis-blood barrier would have an immunological effect on sperm production?

Answers

Answer:

when u do ittttt

Explanation:

Place the stages of photosynthesis in order:

Answers

Answer:

First is D

Second is C

Third is B

Fourth is A

Hi can someone plss help me with this!!

Answers

Explanation:

4. evaporates , ocean

8. transpiration,

9. acid rain

what is an important function of the urinary system?

Answers

Answer:

the kidneys are the most important function of the urinary system

Explanation:

mark me brainliest

pls and ty

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Four friends were walking on a nature trail in their local park. They began to question whether or not the trees need to breathe, or need food like humans do. Here are their thoughts
:Katie:I think that plants need to eat but don’t need to breathe.
Hugo:I think that plants need to eat and need to breathe.
Danielle:I think that plants need to breathe but don’t need to eat.
Liam:I don’t think plants need to eat or breathe.
Circle the person you most agree with. Explain why you agree with that person

Answers

Answer: I agree with Hugo that plants do need to breathe and eat because Plants do require oxygen to respire, the process in return gives out carbon dioxide and eat thorugh the process of phoyosynthesis

What condition occurs when epidermal cells are created too quickly? a. Acne c. Psoriasis b. Skin cancer d. Chicken pox.

Answers

The condition that occurs when epidermal cells are created too quickly is known as psoriasis. In this disease, the cell cycle of skin cells is abnormally accelerated.

Psoriasis is a skin disease associated with itchy patches of thick, red skin, especially in the knees, trunk, and scalp.

Psoriasis is an autoimmune disease caused when the immune system attacks healthy skin cells.

Psoriasis is well characterized by hyperproliferative keratinocytes, which are the most prominent type of cell within the epidermis.

Learn more in:

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While you’re waiting for the lactase solution to cool, read the directions on the test strips. The test strips in the Edmentum lab kit will react to glucose within a few seconds. If you use different strips, the reaction time may vary. Now follow these steps to test the solutions. Record your data in the answer space.


Milk and water solution: Fill the first test tube one fourth full of milk. Fill the small graduated cylinder with water and gently add it to the milk in the test tube until the test tube is half full. Use the stirrer to thoroughly mix the solution. Then insert the test strip for 10 to 20 seconds. Look at the test strip, and record whether it changed color. Wash the stirrer.

Milk and lactase enzyme solution: Fill the second test tube one fourth with milk and one fourth with the lactase solution. Use the stirrer to thoroughly mix the solution. Insert the test strip for 10 to 20 seconds, and record whether it changed color. Wash the stirrer.

Milk an

Answers

Milk and lactase have glucose together because the enzyme lactase will break down the lactose molecule so the test strip can see the entire glucose molecule

when fatty acid metabolism creates more acetyl-coa than can be handled in the citric acid cycle, the excess acetyl-coa is converted into ________.

Answers

Answer:

Ketone Bodies

Explanation:

If excess acetyl CoA is created and overloads the capacity of the Krebs cycle, the acetyl CoA can be used to synthesize ketone bodies.

In a particular diploid organism, somatic cells have 24 chromosomes. How many pairs of homologous chromosomes would be present in the gametes of that organism

Answers

Answer:

12

Explanation:

It says 'pairs'.

An environment in which nonliving substances and living organisms work together is called

A) a population
B) a community
C) an ecosystem


Hi can someone help me w this? thanks!

Answers

Answer:

the answer is

c.) ecosystem

Explanation:

ecosystem is a community of living things and non living things that interact in the same environment

Extra Information:

. Population- is a group of individuals of the same species living within an area

. Species - is a group of individuals that can reproduce naturally with one another and create a fertile offspring

.Community- is a group of living and non living things in the same environment

.Biotic factors - living things such as plants,animals,bacteria,fungi ... that are found in ecosystems

.Abiotic factors - non living things such as water,air,sans,light.. that are found in ecosystems

HOPE THIS HELPDS :D

Answer:

ecosystem

Explanation:

ye

Calculate the kinetic energy of a
30 g bullet fired at 200 m/s.

Answers

Step 1: Identify the formula needed to solve this problem.

The formula for kinetic energy (KE) is:

KE = 1/2m~v^2

m = mass

v = velocity

Step 2: Make a list of the values given in the question.

mass (m) = 30 g

velocity (v) = 200 m/s

[tex] \frac{1}{2} m {v}^{2} \\ \frac{1}{2} \times 30 \times {200}^{2} \\ 15 \times 40000 \\ = 600000[/tex]

Answer:

6 × 10⁵ J

Explanation:

Kinetic Energy of a moving mass is defined as, half of the product of it's mass and the square of it's velocity.

[tex] \boxed{ \mathsf{K.E. = \frac{1}{2} m( {v})^{2} }}[/tex]

Mass of the bullet (m) = 30 gvelocity (v) = 200 m/ s

[tex] \implies\mathsf{K.E. = \frac{1}{2} \times 30 \times ( {200})^{2} }[/tex]

[tex] \implies\mathsf{K.E. = 15 \times 4 \times {10}^{4} }[/tex]

[tex] \implies\mathsf{K.E. = 60 \times {10}^{4} }[/tex]

[tex] \implies \underline{\mathsf{K.E. = 6 \times {10}^{5} J }}[/tex]

PLEASE HELP !!!!
What are their chances of having a child that has A+ blood?

Answers

Answer:

I think it must be 25%

Explanation:

Not sure how to explain

Answer:

3 in 8 people

Explanation:

If you have type A blood, your parents had one of the following possible combinations of blood types: AB and AB. AB and B. AB and A.

What's metamorphism?
A) The process by which new minerals form from existing minerals that become unstable at Earth's surface
B) The process by which new minerals form from existing minerals as a result of elevated temperature or pressure
C) The process by which new minerals form as a result of biological processes in living organisms
D) The process by which new minerals form as a result of precipitation from an aqueous solution

Answers

Answer:

D) The process by which new minerals form as a result of precipitation from an aqueous solution

As a result of an injury in gallbladder of a person, it had been removed surgically, which of the following processes can be affected by this? *

a. The removal of amino groups of proteins.
B. The digestion of carbohydrates.
C. The breaking down of peptide bonds of proteins.
D. The digestion of fats

Answers

Answer:

D

Explanation:

Which equation can be used to solve for acceleration?

Answers

Answer:

To do this you need to know equation for acceleration: a = Δv / Δt where a is acceleration, Δv is the change in velocity, and Δt is the amount of time it took for that change to occur. The unit for acceleration is meters per second per second or m/s2.

Explanation:

Which of the following is a biological hazard?
a) Noise
b) Fiber
c) Mold
d) Dust​

Answers

Answer:

ur answer is c i belive becasue it makes the enviroment around people hard to live in

Explanation:

ANSWER:

C) mold

EXPLANATION

Any risk that comes form the biosphere is a biological hazard. Fungi and mold are biological hazards. Mold can trigger respiratory problems such as asthma. It produces potentially toxic substances.

Hope this helps!! :)

how would you expect the return of the wolves to yellowstone to affect the other species there?

Answers

Due to the wolves being the natural predator of some species, like elk, the population would likely be impacted after the reintroduction of the wolves. These wolves would hunt their prey, causing a drop in population.

Which of the following characteristics do homologous chromosomes exhibit?.

Answers

Homologous chromosomes carry alleles of the same traits and therefore, carry the genetic information for the same trait.

Homologous chromosomes are a pair of chromosomes with the same gene sequence but of different origins - one paternal and the other maternal.

Thus, homologous chromosomes carry the same traits, although could be of different forms. For example, one of the chromosomes might carry a gene for tallness while the other might carry a gene for shortness even though both tallness/shortness represent a gene for height.

More about homologous chromosomes can be found here: https://brainly.com/question/22613446?referrer=searchResults

the organ that transfers nutrients and oxygen from mother to embryo is called the

Answers

Answer:

The fetus is connected by the umbilical cord to the placenta, the organ that develops and implants in the mother's uterus during pregnancy. Through the blood vessels in the umbilical cord, the fetus receives all the necessary nutrition, oxygen, and life support from the mother through the placenta.

How does carbon dioxide enter leaves?

Answers

Plants get the carbon dioxide they need from the air through their leaves. It moves by diffusion through small holes in the underside of the leaf called stomata. These let carbon dioxide reach the other cells in the leaf, and also let the oxygen produced in photosynthesis leave the leaf easily.

Is it True or false?

Answers

False, plant cells have cell walls while animal cells do not. Both however, have cell membranes.

meaning of Natality Rate

Answers

Answer:

It's the same as the birth rate.

plzz help

Which describes a promoter?

a. the first part of an operon that regulates where, when, and to what level a gene is
expressed

b. the part of an operon that, if attached by a repressor protein, suppresses the
expression of a gene

c. a cluster of genes that are expressed or repressed as a group

d.an enzyme that helps DNA unzip prior to transcription

Answers

Answer: A

Explanation: email for more help my address is

charlescarey0906(at symbol)g ma il.com

no spaces or caps

Answer:

a :)

Explanation:

PLZZZZZZZ help me and thank you

Answers

Answer:

it's in the book hehe 11111111111111

Why do the cells in all living things need energy?


to help them decompose


to fuel their chemical reactions


to communicate with other cells


so they can block sunlight

Answers

Answer:

I think is the second one

Answer:

to fuel their chemical reactions

Explain how pollution from one location
can affect the environment far away from the
source of the pollution

Answers

Answer:

Air quality is affected by natural processes. Wind can move pollutants from their source to far-away locations. It can still spread and harm living creatures and destroy their environments.

Explanation:

Air quality is affected by natural processes where wind can carry pollutants to places far away from their source which can still spread and harm living beings and destroy their environments.

What is Pollution?

Pollution is defined as the introduction of harmful materials into the environment where the harmful materials are called pollutants. Pollutants can be natural, such as volcanic ash which can also be created by human activity, such as waste or runoff produced by factories. Pollutants harm the quality of air, water and land.

Many things produce pollution such as cars spewing pollutants from their exhaust pipes. Burning coal to generate electricity pollutes the air. Industries and homes generate waste and sewage that can pollute land and water. Pesticides which is chemical poisons used to kill weeds and insects which is seep into waterways and harm wildlife.

Thus, air quality is affected by natural processes where wind can carry pollutants to places far away from their source which can still spread and harm living beings and destroy their environments.

Learn more about Pollution, here:

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