How do cells support the evolution theory?

Answers

Answer 1

Answer:

Hope this helps!

Explanation:

The endosymbiotic theory explains how eukaryotic cells evolved. The large and small cells formed a symbiotic relationship in which both cells benefited. Some of the small cells were able to break down the large cell’s wastes for energy. They supplied energy not only to themselves but also to the large cell.


Related Questions

17.
The human body uses carbohydrates as

Answers

Answer:

Carbs Provide Your Body With Energy

protiens

Explanation:

the four primary functions of carbohydrates in the body are to provide energy, store energy, build macromolecules, and spare protein and fat for other uses

what does it mean to live in Exponential Times?

Answers

Answer: If something grows exponentially it means really, really fast. Whatever happens as a consequence it hits up really, really hard in the last moment.

Explanation:

Humans and dogs evolved from a common ancestor. Which pieces of evidence would support this? Check all that apply. Both of their adult forms look very similar. They both had a tail as an embryo. Their arm and leg structure is similar, but may have a different function. There are fossils of an organism that is half man, half dog in the fossil record. Both had gill slits when they were born.

Answers

Answer:

They both had a tail as an embryo.

Explanation:

Both human and dogs have tail as an embryo. Temporary tail-like structures are present in the human embryo. These tail like structure develop around the fifth or sixth week of gestation, having about 10 to 12 vertebrae and removed when it reached to its full development stage while on the other hand, tail present in dog's embryo also developed with time and we can see when the dog baby is fully formed.

Answer:

They both had a tail as an embryo.

Their arm and leg structure is similar but may have a different function.

Explanation:

They both had a tail as an embryo.

Vestigial structures are those body parts that have lost or reduced their original function during the evolution of a species. These vestigial structures might be found in many animals, including human beings. Vestigial structures were plenty functional for common ancestors. But with evolution, they degenerated, stunted, and became rudimentary for some of the new species.  

During the first 4 months of embryogenesis, all mammals have a tail at some point in their development. Dogs develop this structure and keep it during their whole lives, but humans lose it with time during embryogenesis. The tail disappears, and its forming vertebras get fussed with each other composing the coccyx, which represents a vestigial structure. This tailbone is the remnant of a missing tail.

In many animals, the function of the tail is to stabilize, equilibrate and mobilize. But in humans, the coccyx, located at the end of the vertebral column, has lost this original function.

Their arm and leg structure is similar but may have a different function.

The fact that whales, humans, and dogs all have the same bones in the same order, but they matured differently in later embryological development, is an example of homologous characters.  

Homologous characters have the same fundamental structures. They also share the same relations with adjacent structures, and they have the same embryological development.  

These structures might show variations between organisms exhibiting them, according to their function and to the environment in which the organism lives.  

These homologous characters are common in organisms related and that share a common ancestor.

1.What is the adaptation that is beneficial to organisms in the Mountain Rock environment?

2.What is the adaptation that is beneficial to organisms in the Desert Sand environment?

Answers

Answer:

Dense hair and thick skin.

Thin skin and Nocturnal behavior.

Explanation:

Dense hair and thick skin are the adaptation that is beneficial to organisms that is present in the environmental condition of Mountain Rock because on Mountain Rock, the temperature is very low so organisms needs something which make them warm, while on the other hand, thin skin and Nocturnal behavior are the adaptations that is beneficial to organisms in the Desert Sand environment because temperature is very hot.

Please help worth 95 points. Project: Algae Cultures: Directions
In this report, you will be researching the different types of algae. Report on one algae from each of the three categories (blue-green, green, and green-brown). Include the following information: Name of the algae, Category if falls under, Where it is mostly found and what conditions it needs to survive, Whether it is unicellular or multicellular, Where in the food chain algae are, and what predators it may have, Research why some scientists think algae should be classified plants, and explain the debate.

1.Which organisms did you identify 2. How easy or difficult was it to find an example of each category? Which one was the hardest to find? Why? 3. Which environments were most common to find algae in? Why do you think so? 4. What part of the food chain is the alga? 5. Why is algae classified in the Protist Kingdom and not the Plant Kingdom even though they are photosynthetic? Research why scientists feel they should be classified as plants.

Answers

Answer:

1) I identified the Golden-Brown Algae.

2)  It was very easy to find the category because of the solid color base and because it only had the daitoms. It did not have multiple like the Green Algae and the Blue-Green Algae.

3) In fresh, brackish or salt water. They are found both in tropical lakes and seas, and in the alpine and polar snows. They are unicellular or multicellular protist plant organisms, whose cells do not form tissues and lack flowers. They are considered the first link in the food chain in the aquatic environment. They are found in fresh, brackish or salt water. They are primary producers in the food chain, capable of producing organic substances through photosynthesis, so they use sunlight. They are found in tropical lakes and seas up to the alpine and polar snows.

4) Producer Alga is A plant and produces food for other organisms.

5) Algae (Euglena) do photosynthesis as plants do. They also move around and eat, as do animals. But they are unicellular. In order to be classified as a plant or animal, an organism has to be multicellular, made of more than one cell. Since it is a unicellular organism with some plant and animal characteristics, it is called a protist. Plant cells have walls while algae does't have one, so it is a protozoan. Algae resemble the protozoa, so they are put into the Protist Kingdom.

Explanation:

I had the project.

Algae recreate a major part of the marine ecosystem because they exist as the decomposers current in the marine ecosystem; any harm to them could cause an inequality in the whole marine ecosystem.

What are golden-brown algae?

1)The Chrysophyceae, usually named chrysophytes, cryptomonads, golden-brown algae or golden algae exist as an extensive set of algae, seen mainly in freshwater.

2) It stood very easy to see the class because of the solid color base and because it only contained the diatoms. It did not contain multiple like the Green Algae and the Blue-Green Algae.

3) In fresh, saline, or salt water. They exist seen both in tropical lakes and seas and in the alpine and polar snows. They exist as unicellular or multicellular protist plant organisms, whose cells do not constitute tissues and absent flowers. They exist thought the first link in the food chain in the aquatic environment. They exist seen in fresh, brackish, or salt water. They exist as primary producers in the food chain, qualified of producing organic substances through photosynthesis, so they utilize sunlight.

4) Producer Alga exists in a plant and makes food for different organisms.

5) Algae (Euglena) accomplish photosynthesis as plants do. They even move about and eat, as do animals. But they exist unicellular. To be categorized as a plant or animal, an organism contains to be multicellular, made of better than one cell. Since it stands as a unicellular organism with some plant and animal elements, it exists named a protist. Plant cells contain walls while algae don't contain one, so it exists as a protozoan. Algae reach the protozoa, so they stand to put into the Protist Kingdom.

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The workers who paid a rate for every day they work are known as

Answers

Answer:

piece work

Explanation:

I hope this is right

Drag each image to indicate whether it shows point source pollution or non-point source pollution

Answers

Answer: The first and the last are point source and the second and third are non-point source.

Explanation: I got these right on the quiz.

The first image and the last image are point source pollution while the second and third images represent non point source pollution.

A point source pollution refers to a pollution that is emerging from a particular point such as from a pipe. It is traceable to a given source. The non - point source pollution is not traceable to any particular source.

In the image as shown, the first image and the last image are point source pollution while the second and third images represent non point source pollution.

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Do anyone why blood is red?

Answers

Answer:

Human blood is red because of the protein hemoglobin, which contains a red-colored compound called heme that's crucial for carrying oxygen through your bloodstream.

Blood gets its bright red color when hemoglobin picks up oxygen in the lungs

the oxygen essentally makes it red

Explanation:

Why is Linnaeus called the father of taxonomy?

He created the classification level called domain.

He developed the modern system of naming organisms.

He explained the steps that led to the formation of a species.

He used more than one common name for the same organism

Answers

Answer:

he developed the modern system of naming organisms

please help
Explain how an organ and organelles are related

Answers

Answer:

Just as organs are separate body parts that perform certain functions in the human body, organelles are microscopic sub-units that perform specific functions within individual cells. Organelles are specialized structures that perform various jobs inside cells.

Organelles are microscopic subunits that carry out certain tasks within individual cells, whereas organs are distinct body sections that carry out specialized tasks for the human body.

What is the relation between organ and organelles?

Literally, the phrase refers to “tiny organs.” Organelles provide specialized functions to keep a cell alive, much like organs like the heart, liver, stomach, and kidneys serve specific functions to keep an individual alive.

Atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism are the major levels of organization in the body, going from the simplest to the most complex.

Like an organ in the body, an organelle is a subcellular structure that performs one or more particular functions for the cell.

Therefore, organ and organelles differ in their functioning.

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Mallory has four aquatic plants

Answers

Answer:

that is really good for her

Explanation:

hope she is fine and healthy

Describe the process of water moving in and out of the cell.

Answers

Answer:

Water moves across cell membranes by diffusion, in a process known as osmosis. Osmosis refers specifically to the movement of water across a semipermeable membrane, with the solvent (water, for example) moving from an area of low solute (dissolved material) concentration to an area of high solute concentration.

Explanation:


Please help me with these

Answers

those are nucleotides

since all three of them contain deoxyribose (because there's only one hydroxil group) they are DNA nucleotides

the first nucleotide has cytosine as it's nitrogenous base

the second nucleotide has adenine as it's nitrogenous base

the third nucleotide has thymine as it's nitrogenous base

In the process of respiration, organisms generally


a. use oxygen and give off carbon dioxide


b. use nitrogen and give off carbon dioxide


c. use carbon dioxide and give off oxygen


d. use carbon dioxide and give off nitrogen

Answers

Answer:

A

Explanation:

During respiration organisms use up oxygen given off by plants and give off carbon dioxide as by product

5. The sodium-potassium pump is an example of
i. simple diffusion.
j. passive transport.
facilitated diffusion.
k. none of the above

Answers

Answer:

its passive transport

Explanation:

The sodium-potassium pump sets the membrane potential of the neuron by keeping the concentrations of Na+ and K+ at constant disequilibrium.

K

The Sodium-Potassium Pump. Active transport is the energy-requiring process of pumping molecules and ions across membranes "uphill" - against a concentration gradient. ... In active transport, as carrier proteins are used to move materials against their concentration gradient, these proteins are known as pumps.

What kind of bacteria are able to change pure nitrogen into ammonia compounds?
Group of answer choices

nitrifying

decomposing

nitrogen-fixing

denitrifying

Answers

Answer:

the anwer is nitrifying fixing as given in your text .

Explanation:

Decomposers also produce ammonia by converting animal waste and dead plants and animals into organic and inorganic materials, including ammonia.

Nitrifying I hope this helps

Due today, please help

Answers

The nitrogen bases will only bond with one specific nitrogen base such as A - T and G - C. This is known as:

Complimentary Base Pairing

Gravitational force multiple choice

Answers

Answer:

Option B. The force would be quartered (factor of 1/4).

Explanation:

The gravitational force between two objects can be expressed with the equation:

By analyzing the equation, we can see that if we multiply both m1 and m2 by 1/2, the resulting new F would be lower by a factor of 1/4 (as 1/2 times 1/2 equals 1/4).

Thus the correct answer is option B.

(PLEASE HELP I WILL MARK BRAINLEST) Limestone is a sedimentary rock and marble is a metamorphic rock. Despite limestone and marble having the same chemical makeup, which statement describes why they are classified as different rocks?

They formed at different times.

They were formed from different fossils.

They were formed by different methods.

They formed in different amounts of time.

Answers

Answer:

The were formed by different methods

They were formed by different methods is the statement that describes that limestone and marble are classified as different rocks.Therefore, the correct option is C.

What is limestone?

Limestone is a sedimentary rock primarily made up of calcium carbonate (CaCO3) in the form of the mineral calcite. It is formed from the accumulation of shells, coral, and other debris from marine organisms.

Marble is a metamorphic rock that forms from limestone, which is a sedimentary rock composed primarily of calcium carbonate (CaCO3). It is formed through a process of metamorphism, which involves the transformation of the original rock through heat and pressure over time. Therefore, the correct option is C.

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The question is incomplete, but most probably the complete question is,

Limestone is a sedimentary rock and marble is a metamorphic rock. Despite limestone and marble having the same chemical makeup, which statement describes why they are classified as different rocks?

A. They formed at different times.

B. They were formed from different fossils.

C. They were formed by different methods.

D. They formed in different amounts of time.

Why are some pathogenic bacteria able to make toxins?

Answers

A pathogen is a microorganism that is able to cause disease in a plant, animal or insect. Pathogenicity is the ability to produce disease in a host organism. Microbes express their pathogenicity by means of their virulence, a term which refers to the degree of pathogenicity of the microbe. Hence, the determinants of virulence of a pathogen are any of its genetic or biochemical or structural features that enable it to produce disease in a host.

The relationship between a host and a pathogen is dynamic, since each modifies the activities and functions of the other. The outcome of such a relationship depends on the virulence of the pathogen and the relative degree of resistance or susceptibility of the host, due mainly to the effectiveness of the host defense mechanisms. Staphylococcus aureus, arguably the most prevalent pathogen of humans, may cause up to one third of all bacterial diseases ranging from boils and pimples to food poisoning, to septicemia and toxic shock. Electron micrograph from Visuals Unlimited, with permission.

The Underlying Mechanisms of Bacterial Pathogenicity

Two broad qualities of pathogenic bacteria underlie the means by which they cause disease:
1. Invasiveness is the ability to invade tissues. It encompasses mechanisms for colonization (adherence and initial multiplication), production of extracellular substances which facilitate invasion (invasins) and ability to bypass or overcome host defense mechanisms.

2. Toxigenesis is the ability to produce toxins. Bacteria may produce two types of toxins called exotoxins and endotoxins. Exotoxins are released from bacterial cells and may act at tissue sites removed from the site of bacterial growth. Endotoxins are cell-associated substance. (In a classic sense, the term endotoxin refers to the lipopolysaccharide component of the outer membrane of Gram-negative bacteria). However, endotoxins may be released from growing bacterial cells and cells that are lysed as a result of effective host defense (e.g. lysozyme) or the activities of certain antibiotics (e.g. penicillins and cephalosporins). Hence, bacterial toxins, both soluble and cell-associated, may be transported by blood and lymph and cause cytotoxic effects at tissue sites remote from the original point of invasion or growth. Some bacterial toxins may also act at the site of colonization and play a role in invasion. Acid-fast stain of Mycobacterium tuberculosis, the agent of tuberculosis (TB). The bacteria are the small pink-staining rods. More than one-third of the world population is infected. The organism has caused more human deaths than any other bacterium in the history of mankind. Although its ability to produce disease is multifactorial, it is not completely understood. American Society of Microbiology, with permission.

tall pea plants are dominate over pea plants if two hybrids (Tt) are crossed ​

Answers

Answer:

Naruto usamaki is the greatest hokagey in the leaf village

Why do disruptive selection pressures tend to favor rapid evolutionary changes?

a. They result in sudden gene frequency changes.

b. They eliminate extreme genetic traits.

c. They select for one variation of a genetic trait.

d. They result in environmental adaptation.

Answers

Answer:

The correct answer is a. They result in sudden gene frequency changes.

Explanation:

The evolution of life, its diversity, is reduced to the processes of microevolution or speciation. But not all evolutionary processes in populations end with the formation of a new species. Disruptive selection is a type of natural selection that selects against the average individual in a population. The composition of this type of population would show phenotypes (individuals with groups of traits) of both extremes but with very few individuals in between. Disruptive selection tends to increase intra-population variability and, to this end, favors individuals at both ends of the phenotypic distribution, that is, as a final result there is a break in two different populations, which can lead to speciation.

Answer:

A"They result in sudden gene frequency changes."

Explanation:

just took the test for edg and got it right

1. What is the pH range for an acid?

A. 0 - 7- 14



2. What is the pH range for a base

A. 0 - 7- 14



3. What are the products of an acid base reaction?

A. water and salt

B. acid and base

C. water and sugar

D. water



4. What substance has a neutral pH?

A. ammonia

B. water

C. sodium bicarbonate

D. vinegar



5. The negative ion found in bases is the ______________

A. hydrogen ion (H+)

B. hydroxide ion (OH-)

Answers

Answer:

0-7-14

0-7-12

c is correct water and suger

d is correct vinegar

b is correct (OH-)

The graph shows the effect of different wavelengths of ultraviolet light on mutation rate in
human skin cells. Which of the statements below supports the claim that UV radiation has an
effect on mutation rates? Select all that apply.
A)
Only UVA has an effect on mutation rates in human
skin cells.
B)
Only UVB has an effect on mutation rates in human
skin cells.
C)
Both UVA and UVB increase mutation rates in human
skin cells.
D)
A combination of UVA and UVB will increase the
mutation rate even more.
The independent variable is causing an effect on the
dependent variable in this experiment.

Answers

Answer: C and E

Explanation:

USA test prep

Answer:

C) Both UVA and UVB increase mutation rates in human skin cells.

E) The independent variable is causing an effect on the dependent variable in this experiment.

Explanation:

Got it right on USA Testprep

If a male organism has 40 chromosomes in each body cell, how many chromosomes does a female of the same sex have in each of her body cells?

Answers

Answer:

40

Explanation:

they're usually the same

NEED HELP WITH THESE 4 QUESTIONS WILL GIVE BRAINLIST!!!
1.What were some characteristics that the finches developed to give them an advantage in surviving?

2.How do you think that the one species of finch evolved into many different species, each with its own advantages?

3. In what ways do these advantages help the finches to survive and reproduce?

4. What might have happened if the finches didn't evolve into many different species?

Answers

Answer:

1. Because the drought reduced the number of seeds and finches with bigger beaks were able to eat the larger and harder seeds so more of them survived.

2. Summary: Changes in the size and form of the beak have enabled different species to utilize different food resources such as insects, seeds, nectar from cactus flowers as well as blood from iguanas, all driven by Darwinian selection

3.  Medium ground finches with larger beaks could take advantage of alternate food

4. three species of Darwin's tree finches have been known to inhabit Floreana  but no birds singing that song on Floreana have been heard in many years.

Explanation:

What are the like terms in the expression: 2a + 3b+ 40 - 5a + 8 - 4
O 2,3,4,-5
O 2a, 3b, 4c
O-5a, 8
O2a, -5a, 8, -4


i need help plzz

Answers

Answer: 2,3,4,-5

Explanation:

it seems that 40 is supposed to be 4c.

the terms can be grouped in several ways

2a, -5a                   Contain factor ‘a’

8, -4.                Simple integers/constants

2a, 4c,  8, -4.          Even numbers

2a, 3b, 4c,  -5a       Contain a factor      

Can’t group on + or - because values of a,b,c are unknown

From the available choices, only 2,3,4,-5 matches a logical group.

Which antivenom will save Tyler?

Select one:

a.
Antivenom A


b.
Antivenom B


c.
Antivenom C


d.
Antivenom D

Answers

Answer:

b

Explanation:

A model for how the solar system formed must explain
observations and reasoning. Identify each statement as
an example of an observation or reasoning. If a statement
is false or invalid, identify it as such.
a. Most of the mass of the solar system is in the sun.
b. The sun is composed primarily of hydrogen and
helium.
c. The sun formed more than 13.8 billion years ago when
the universe formed.
d. Most objects in the solar system orbit the sun in the
same direction.
e. If most of the mass of the solar system is in the sun
and the sun is mostly hydrogen and helium, then the
solar system must primarily be hydrogen and helium.

Answers

Answer:

The correct answer would be -

a. observation

b. observation

c. invalid

d. observation

e. reasoning

Explanation:

Any observation or statement form or generated by the understanding and nothing any event. The first statement is formed by observing the sun and the rest of the solar system and comparing its mass. The second and fourth statement is also observations made on fact or noticing the.

The fifth statement is reasoning as it deriving something from logic and fact. The third statement is invalid as the universe made before the sun.

What events must have occurred for fossils of marne organisms to be in a mountain far above sea level?​

Answers

Answer:

el sapo

Explanation:

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To what audience did Martin Luther King Jr. direct his speech? which of the following is not a function A (2,1),(4,3),(6,5),( 8,7) B (2,1),(4,1),(6,5),(5,4) C (2,1),(4,3),(6,5),(2,7) 60% is equal to what fraction in simplest form? What argument did Andrew Jackson use to persuade people that the IndianRemoval Act was a good decision? Find the missing angle. What did Locke believe the citizens needed to do if the government should fail to protect the natural rights of citizens The North and South each had their own advantages and disadvantages.Which statement best reflects how each side used its advantages to win the war?The South had superior numbers, which the North defended against with itsmore experienced leaders.Though the South had the home-field advantage, the North utilized their navalpower to control the sea.The strong economy in the North was no match for the superior transportationsystem in the South.The North was determined to preserve its way of life, while the South foundsupport from the president. answer plz i neeeeed help Answer this please I promise 30 points + mark as brainliest ( only relevant answers ) PLz help I will make you brainliest and give you big amount of pointsWrite a song, rap or poem that shares your life's blueprint- your dreams and goals. It must be at least 10 lines long. about photography An air-filled capacitor stores a potential energy of 6.00 mJ due to its charge. It is accidentally filled with water in such a way as not to discharge its plates. How much energy does it continue to store after it is filled what happen when we put a waterproof paper in hot water and what happens in cold water? Sam is moving house and is carrying a 300N box of books up a flight of steps 5m high, it takes her 30 seconds. Gary follows her carrying a bag of clothes doing 1000 J of work; it only takes him 25 seconds. Who provides the biggest power? Show your working. Please make sure you are correct thank you!! Can someone help me Ill give best answer What do the events in paragraph 2 indicate about Grandpa? scary tales A stuffy normally costs $12, but this week it is on sale for $9. What is the Percent of Change on the stuffy? evaluate: the crucifixion is less significant than the birth of jesus. (12 marks) whats the slope? thanks if you help me :) Sam builds 360 toys in 8 hour. At that rate,how many toys would he build in 4 minutes