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:

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Related Questions

Together, erosion and deposition help shape sand dunes, ____ and deltas.

Answers

Together, erosion and deposition help shape sand dunes, canyons, and deltas.

if a dna strand has the nucleotide sequence of CCGAGTTG, what is the nucleotide sequence of the complementary strand

Answers

Answer:

i dont know

Which one of the following tissues is illustrated by the sketch?
A. xylem C. Collenchyma
B. Parenchyma D. Epidermis

Answers

The answer is b) parenchyma D. Epidermis

Describe how the Earth’s surface changed over time?

Answers

Answer:

Earth's surface is constantly changing. Wind, water, and ice break down large rocks and move sediments on the surface. It usually takes years for weathering, erosion, and deposition to cause noticeable changes. Some events, though, change Earth's surface much more quickly.There are basically 2 types of changes that occur to the earth's surface (i) Slow change and (ii) fast change. Fast changes occur through the actions of earthquakes, volcanoes, landslides, etc. while slow change takes time and has a process.

Explanation:

Our home planet Earth is a rocky, terrestrial planet. It has a solid and active surface with mountains, valleys, canyons, plains and so much more. Earth is special because it is an ocean planet. Water covers 70% of Earth's surface. When it comes to changes on the Earth's surface, the main processes to take into account are plate tectonics and the rock cycle as well as the sea-floor spreading. ... These collisions causes mountains and volcanoes to form on the plate boundaries and thus changes the shape and form of the landmass

What results at the end of biochemical reactions that involve enzymes?

Answers

The results at the end of biochemical reactions that involve enzymes are one or more PRODUCTS. They are the consequence of these reactions.

Chemical reactions

A chemical reaction can be defined as a process where one or more substrates react in presence of an enzyme to generate one or more products.

These enzymes are proteins that catalyze different reactions by lowering the activation energy.

The enzymes bind to specific substrates in order to form a complex which is required to carry out the reaction.

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what is the process of producing energy in living organisms

Answers

Answer:

cellular respiration

Explanation:

Although the human colon may be one of the most diverse microbial communities on Earth, the majority of the bacteria are classified as __________.

Answers

Answer:

prokaryotic bacteria/cells are found to be the most common type of single organisms.

Although the human colon may be one of the most diverse microbial communities on Earth, the majority of the bacteria are classified as anaerobes.

What are anaerobic organisms?

Anaerobic organisms are life forms that generate ATP in hypoxia conditions (absence of oxygen).

ATP is the energy con of the cell to carry out different cellular metabolic functions.

Anaerobic bacteria form part of the intestinal microflora in humans.

In conclusion, although the human colon may be one of the most diverse microbial communities on Earth, the majority of the bacteria are classified as anaerobes.

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1. What happened to the pH of the substances when the size of the sample was increased or
decreased?

2. What happened to the pH when the sample was diluted? Did the material change from its original classification as an acid/base/ or neutral?

3. Describe a neutralizing reaction and give the neutral products?

4. Predict the general pH that is the result of combining a strong acid with a weak base?

Answers

Explanation:

An acid-base reaction or neutralization reaction is a chemical reaction that occurs between an acid, for example hydrochloric acid, and a base, sodium hydroxide.

The word "salt" describes any ionic compound whose cation comes from a base (Na + from NaOH) and whose anion comes from an acid (Cl- from HCl). Neutralization reactions are generally exothermic, which means that they give off energy in the form of heat. They are often called neutralization because when an acid reacts with a base, they neutralize each other's properties.

There are several concepts that provide alternative definitions for the reaction mechanisms involved in these reactions, and their application to related problems in solution. The word neutralization can be interpreted as annihilation or as elimination, which is not far from the truth. When an acid is mixed with a base both species react to different degrees that depend largely on the concentrations and volumes of the acid and the base can be considered as an illustration the reaction of a strong acid that is mixed with a weak base, this The latter will be completely neutralized, while a portion of the strong acid will remain in solution, depending on the moles that reacted with the base. Three additional alternatives that arise from mixing an acid with a base can be considered:

A strong acid is mixed with a strong base: When this happens, the species that will remain in solution will be the one that is in greater quantity than the other.A weak acid is mixed with a strong base: The solution will be basic, since it will be the base that remains in the reaction.A weak acid is mixed with a weak base: If this happens, the acidity of a solution will depend on the acid constant of the weak acid and the concentrations of both the base and the acid.Despite the differences in definitions, its importance is evident in the different methods of analysis, when applied to acid-base reactions of gaseous or liquid species, or when the acidic or basic character may be somewhat less evident. The first of these scientific concepts of acids and bases was provided by the father of chemistry, the Frenchman Antoine Lavoisier, around 1776.

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.

pls help im stuck on this question

Answers

Answer:

A- cellular respiration : carbon dioxide

Explanation:

This question is looking for byproducts ie Photosynthesis produces Oxygen. Cellular respiration produces Carbon Dioxide. Hopefully I was able to help you!

Your body's 2nd choice of food group to break down for energy?

Answers

Fat

When body doesn't get carbs it uses fat.

What is the difference between a synthesis reaction and a digestion reaction?

Answers

Answer:

Explanation:

Synthesis reactions occur when two different atoms or molecules interact to form a different molecule or compound

Digestion reaction is when its broken down into glucose by a type of chemical reaction called hydrolysis

Place each land feature in the correct category based on the process that causes its formation

•Oxbow lake. Eroison by rivers

•Alluvial fan

•Delta

•Meander. Deposition by rivers

•Waterfall

•Flood plain

Answers

Deposition by rivers generates alluvial fans and deltas. Moreover, erosion by rivers generates waterfalls, flood plains, oxbow lakes and meanders.

An oxbow lake is a lake located in a meandering channel, and therefore on a floodplain.

Alluvial fans are accumulations of sediments created as flowing water bodies interact with mountains or hills.

A delta is a formation of land composed of sediments located in the mouth of the river.

A waterfall is a point in a river where water spills suddenly downward.

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Answer:

Answer in picture

Explanation:

Why can populations of invasive species increase rapidly in new environments

Answers

Answer:

they have no preditors in that current enviroment that can or is used to eating them so they just grow with no resistance

Explanation:

What is the correct abbreviation for pan troglodytes (chimpanzee)?.

Answers

Answer:

The correct abbreviation for Pan Troglodytes, which is the scientific name for chimpanzees, is PTR.

Explanation:

Hope this helps you :)

Name the following:
The cell that covers a large area and is broad and flat in shape.

Answers

Answer:

skin is the answer please and brainlest pleaaasssseeee

what is the primary function of the chlorophyll pigment?

Answers

Answer:

to absorb light—usually sunlight.

Explanation:

Chlorophyll's job in a plant is to absorb light—usually sunlight. The energy absorbed from light is transferred to two kinds of energy-storing molecules. Through photosynthesis, the plant uses the stored energy to convert carbon dioxide (absorbed from the air) and water into glucose, a type of sugar.

My thoughts about genetically modified crops

Answers

GMOs do not put consumers at any more Rick than non modified food would. It also has increased crop yields abs reduces costs for food production.

Which statement best represents the way the köppen climate system, environmental determinism, and possibilism are related?.

Answers

Köppen refuted possibilism in developing his climate system, establishing environmental determinism, the view that humans are inexorably shaped by the physical environment.

Which unit should be used when measuring the height of an adult?

Answers

Answer:

Feet and inches, or centimeters unit should be used when measuring the height of an adult

Explanation:

HELP WILL GIVE BRAINLIEST
How does the temperature change as you move from the top to the bottom of
the thermosphere?
A. It stays the same.
B. It changes randomly.
C. It increases
D. It decreases

Answers

the answer is c that’s what I put

Plzzzzzzbhelp meeeee plzzzzzzz

Answers

Answer:

I'm gonna bet on house

Explanation:

why is it important to study the ecology of an area?

Answers

Ecology and enriches

Explanation:

Why is it ecology important because ecology enriches our world and is cruail for a human well being and prosperity maybe..?

classify the materials that undergo decay. write decay and non-decay in the space provided for
1. fish
2.stick

Answers

classify the materials that undergo decay. write decay and non-decay in the space provided for 2) stick

true or false: the difference in the sun, earth, and moon’s syzygy is why there are different types of eclipses.

Answers

Answer:

I think the answer is true

the answer is true.

what is the purpose of a broth in a microbiology laboratory

Answers

In microbiology laboratory, broth is very vital. Its purpose is to provide growth medium for the available bacteria necessary for working on the nutrients. Broth gives steady and constant nutrients for the bacteria to quickly reproduce. It is normally a clear liquid made from bones, meat or vegetables.

When the dude kicks a soccer ball, his knee joint is the axis, the force is generated by the quadriceps pulling on the tibia, and the resistance is the foot, lower leg, and ball; this is an example of which type of lever?

Answers

Answer:

c. Third-class lever

Explanation: is correct

What are the parts of a leaf (plant cell) involved in photosynthesis?

Answers

Plastids
Hope that helps! Plz give Brainlyist need points. Thank you!

Which statement describes the way the paramecium reproduces asexually
A,it happens by cell division that include mitosis.
B,it happens by the formation of gametes.
C,it happens by cell division that include meiosis.
D.it happens by fertilization of an egg by sperm.

Answers

The statement that describes the way the paramecium reproduces asexually is as follows: it happens by cell division that include mitosis (option A).

What is asexual reproduction?

Asexual reproduction is one of the two types of reproduction that involves neither meiosis nor fusion of gametes.

This means that in asexual reproduction, new offsprings are produced by a single parent. The new individuals produced are genetically and physically identical to each other i.e., they are the clones of their parents.

This is possible because the single parent cell divides mitotically to produce identical daughter cells.

Therefore, option A is correct regarding the way paramecium reproduces asexually.

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Which butterfly-shaped portion of the brain is responsible for spinal reflexes?

Answers

Answer:

b. Gray matter

Explanation: is correct

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