Although scientists do not know the exact origin of eukaryotic cells, the ______ theory does explain the origin of the mitochondria and chloroplasts.

Answers

Answer 1
Answer: The Endosymbiotic theory

Explanation:

The Endosymbiotic Theory states that the mitochondria and chloroplast in eukaryotic cells were once aerobic bacteria (prokaryote) that were ingested by a large anaerobic bacteria (prokaryote). This theory explains the origin of eukaryotic cells.


Related Questions

Which process occurs at location W? precipitation evaporation condensation transpiration.

Answers

Answer:

Precipitation

Explanation:

If it's the graph that I am thinking of, then it is precipitation. This is where raining occurs in he picture.

The biogeochemical cycle where the water circulates from the atmosphere to the Earth surface in a continuous motion is called the water or hydrological cycle.

The process that occurs at location W is:

Option A. Precipitation

The water cycle can be explained as:

The water cycle has four main components that are evaporation. condensation, precipitation and runoff.

When an atmospheric substance falls on the ground in the form of rain, snow hails etc. are called precipitation.

When the water from surfaces turns into vapours and moves upwards in the atmosphere is called evaporation.

The vapours in clouds turn into water droplets ready to fall as rain or snow is called condensation.

Transpiration is a plant function in which surplus water is exhaled from the stomata of the leaf.

Therefore, the water cycle shows precipitation.

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8. Fish make use of _______ exchange in their gills. a. cross-current b. concurrent c. cocurrent d. countercurrent

Answers

Answer:

Countercurrent

Explanation:

I think it's the answer

Answer:

d. countercurrent

Explanation:

im pretty sure this the answer so i hope this helps bro/broette bye

ASAPPPPP!!!

Why do cells have a high surface area to volume ratio? *
A. to contain more nutrients
B. to contain more organelles
C. to more readily exchange substances across the cell.
D. to have only small substances travel across the cell.

Answers

Answer: C

Explanation: Smaller single-celled organisms have a high surface area to volume ratio, which allows them to rely on oxygen and material diffusing into the cell (and wastes diffusing out) in order to survive. The higher the surface area to volume ratio they have, the more effective this process can be.

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What is a polar molecule?

Answers

Answer:

a polar molecule is a molecule that has a charge on one side of the molecule, that is not cancelled out.

Explanation:

i hope this helps you!

Answer: a molecule that has both positive and negative ions

Explanation: a water molecule has an oxygen element and 2 hydrogen elements the oxygen is a negative ion and the hydrogen ions are positive

What is the role of ATP in transport of materials

Answers

Answer:

Functions of ATP in cells

Explanation:

ATP plays a critical role in the transport of macromolecules such as proteins and lipids into and out of the cell. The hydrolysis of ATP provides the required energy for active transport mechanisms to carry such molecules across a concentration gradient.

Answer:

The role of ATP in the transport of materials :-

To move substances against a concentration or electrochemical gradient, the cell must utilize energy in the form of ATP during active transport. Primary active transport, which is directly dependent on ATP, moves ions across a membrane and creates a difference in charge across that membrane.

Explanation:

Hope this helps you !!

Describe the typical path that hurricanes take in the northern hemisphere.Text to speech

Answers

The clockwise rotation (in the Northern Hemisphere) of air associated with high-pressure systems often cause hurricanes to stray from their initially east-to-west movement and curve northward.

Match the type of stress to the correct type of plate tectonic boundary.

Answers

Answer:

compression:convergent

tension:divergent

shear:transform

What does an alcoholic beverage contain that is a central nervous system depressant? 

Answers

Answer:

interferes with release of neural transmitter GABA

Explanation:

Alcohol is a central nervous system depressant, meaning it slows down brain functioning and neural activity. Alcohol does this by enhancing the effects of the neural transmitter GABA

depressants essentially "look" like the neural transmitter and so they go in and block the plasce in the brain between synapses, so when the body tries to release GABA, it appears as if it is already filled in, but in reality it is the alcohol that has filled it. once they start buidling up, they block enough that it impairs brain activity

Answer:

GABA

Explanation:

gamma-aminobutyric acid (GABA)

what do dna evidence and the fossil record indicate are the ancestors of the living cetaceans, the mammalian group that includes whales, dolphins, and porpoises?

Answers

DNA evidence and the fossil record indicate are the ancestors of the living cetaceans were land-dwelling mammals. DNA evidence allows to trace the evolutionary origin of taxonomic groups.

DNA evidence refers to the linear order of nucleotides, which can be used to trace the evolutionary origin of a particular taxonomic group.

When the linear order of DNA nucleotides is conserved, it is known as sequence homology.

Fossils are preserved remains of organisms that once lived on the Earth, which can also be used as evidence to trace the evolutionary origin of a given group.

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Describe the composition of the cell membrane

Answers

Explanation:

With few exceptions, cellular membranes — including plasma membranes and internal membranes — are made of glycerophospholipids, molecules composed of glycerol, a phosphate group, and two fatty acid chains. Glycerol is a three-carbon molecule that functions as the backbone of these membrane lipids.

The following are problems with rapid growth *
•overcrowded schools
•polluted rivers and drinking water
•barren land
•all above

Answers

Answer:

all above

Explanation:

How does cellular respiration occur in the dark and light?

Answers

photosynthesis occurs only in the light, and cellular respiration occurs in both the dark and the light

In which form is most of the water on Earth?

Answers

Answer:

oceans

Explanation:

The vast majority of water on the Earth's surface, over 96 percent, is saline water in the oceans. 

Give an example of an adaptation

Answers

An adaptation is any characteristic that helps a plant or animal survive in its environment. A penguin's feathers are an adaptation. For example, animals that live in cold places have adaptations to keep them warm. Plants that live in dry areas have adaptations to help them conserve water.

Answer:

Adapting to a new environment is an example of adaptation.

Explanation:

Adaptation means to be able to adjust to something new.

chromosomes form during what part of the cell cycle?

Answers

Answer:

Prophase

Explanation:

During the prophase, chromatin condense to form chromosomes that are visible.

HELP PLS!!!!!!!!!!!!
Beaches are monitored to protect public health. Waterborne pathogens can cause illnesses. Which of the following is not a common type of pathogen at the beach?

Bacteria
Protozoa
Viruses
Worms

Answers

ALL these microorganisms can represent common types of pathogens at the beach. In consequence, it is imperative to take precaution measures to avoid infections.

The sand at the beach may contain dog feces, which is known to transport Toxocara canis, a parasite roundworm able to infect humans.

Moreover, samples of beach sand may also contain different types of pathogenic bacteria (e.g., Staphylococcus species, E. coli, Enterobacteriacea, etc) and viruses (e.g., enteroviruses, hepatitis A, Norwalk viruses, reoviruses, rotaviruses, etc).

In consequence, it is imperative to wash hands with soap and water when touching beach sand that is suspected to be contaminated.

Finally, marine water may also be contaminated with different zoonotic protozoa such as, among others, Giardia, Cryptosporidium and Toxoplasma.

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Answer:

The correct answer is worms.

Explanation:

Yes, all of these can be found at the beach, but worms are not common. Also, I took the test lol!

The two variables in your spreadsheet are time (years) and temperature (degrees Celsius). Which is the
independent variable, and which is the dependent variable? Which variable belongs on the x-axis, and
which belongs on the y-axis? Explain your reasoning.

Answers

Answer:So, the temperature depends on the time. So, the temperature is dependent, and the time is independent. If you're looking at a graph, the independent variable is generally on the horizontal axis

Explanation:

As a result, the temperature changes with time. Therefore, while the time is independent, the temperature is dependent. The independent variable is often on the horizontal axis when viewing a graph. So the independent variable is on the x-axis and the dependent variable is on the y-axis..

What are variables?

Any attribute that can have varying values, such as height, age, temperature, or test results, is referred to be a variable in research. To assess the causality of links, researchers frequently modify or quantify independent and dependent variables in studies.

The cause is the independent variable. Its value is unaffected by other research factors.The effect is the dependent variable. Changes in the independent variable affect its value.

Therefore, the independent variable is on the x-axis and the dependent variable is on the y-axis

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I could really use some help so pls be my guest

Answers

Answer:

B.

Explanation:

Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.

Answer:

I already said it is 2 number!!!

What is the cell ? How many champers did have the heart?

Answers

Answer:

In biology, the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body. A cell has three main parts: the cell membrane, the nucleus, and the cytoplasm. ... Parts of a cell. A cell is surrounded by a membrane, which has receptors on the surface.

The heart consists of four chambers in which blood flows. Blood enters the right atrium and passes through the right ventricle. The right ventricle pumps the blood to the lungs where it becomes oxygenated.

Explanation:

During which phase of mitosis do the spindle fibers help to pull the
chromosomes to the center of the cell, where they line up?
O A. Metaphase
O B. Prophase
O C. Telophase
O D. Anaphase

Answers

During metaphase the spindle fibers arrange the chromosomes on the equator of the cell forming a metaphase plate

10 facts about “molecules”

Answers

( 1 ) Whenever two atoms join together, the form a molecule

( 2 ) Molecules are made up of one or more atoms

( 3 ) Molecules in food are broken down during digestion into their monomer subunits

( 4 ) Everything thing around you is made up of molecules

( 5 ) Everything and Everyone is made up of trillions and trillions of different types of molecules

( 6 ) Molecules and atoms form the smallest identification unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance


I know this is not 10 but i tried :)

What are some benefits of farming for the society/environment?

Answers

Answer:

Pasture and cropland occupy around 50 percent of the Earth's habitable land and provide habitat and food for a multitude of species. When agricultural operations are sustainably managed, they can preserve and restore critical habitats, help protect watersheds, and improve soil health and water quality. in addition to preserving the earth's natural resources, sustainable agriculture benefits the environment through helping maintain soil quality, reducing erosion, and preserving water. Plants and trees in agricultural systems help to retain and add water to underground aquifers. ... Together, they act as an important buffer in the landscape, preventing flooding, reducing water pollution from agricultural runoff and preventing erosion, while providing us with nutritious food at the same time. Farming creates opportunities to lift people out of poverty in developing nations. Over 60 percent of the world's working poor works in agriculture. Farming creates more jobs, beginning with farmers, and continuing with farm equipment makers, food processing plants, transportation, infrastructure and manufacturing.

Explanation:

The benefits are:

early agriculture

Morden agriculture's opportunity

Development in farming sustainability

Farmers improve their communities

heat moves through the atmosphere through the process of ?

Answers

The answer is Conduction

Answer:

Heat moves through the atmosphere through the process of Conduction.

Explanation:

Conduction, radiation and convection all play a role in moving heat between Earth's surface and the atmosphere. Since air is a poor conductor, most energy transfer by conduction occurs right near Earth's surface.

what hormone do the c-cells secrete, and what is the function of this hormone?

Answers

Answer:

Calcitonin is one of those critical hormones. Calcitonin is a hormone that the C-cells in the thyroid gland produce and release. It opposes the action of the parathyroid hormone, helping to regulate the blood's calcium and phosphate levels. How does calcitonin work?

The hormone that the c-cell secrete is calcitonin. The function of calcitonin is a hormone that regulates the amount of calcium in your blood by decreasing it.

What are hormones?

The important hormone is calcitonin. Calcitonin is a hormone produced and released by the thyroid gland's C-cells. It works in opposition to the activity of the parathyroid hormone, assisting in the regulation of calcium and phosphate levels in the blood.

Calcitonin is a hormone produced by the thyroid gland, which is a tiny, butterfly-shaped gland found near the throat. Calcitonin regulates how the body uses calcium.

Calcitonin is a cancer marker. Tumor markers are substances produced in the body by cancer cells or normal cells in response to cancer.

Thus, calcitonin is the hormone secreted by c-cells. Calcitonin is a hormone that controls the quantity of calcium in your blood by reducing it.

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What types of cells perform photosynthesis?

a
All prokaryotic
b
All animals
c
All eukaryotic
d
All plants

Answers

Answer:

All plants

Explanation:

This is due to the presence of chorophlly . the green colouring pigment in plants

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Which tree would survive better if they had the same amount of oxygen, water, soil and sunlight, a redwood or a giant sequoia and why?

Answers

the Redwood would survive better

Explanation:

A sequoia would need more resorces to provide enough water high nutrients soil and lots of sunlight to survive yet again a sequoia can survive for  thousands of years but they are huge and need lots of resources you get my point so the redwood haves a better chance to survive with the amount a resources  redwood needs,

which french cheese was called the king of the cheeses?

Answers

Roquefort is the king of cheese.

What is eternatus????​

Answers

Eternatus (Japanese: ムゲンダイ Mugendina) is a dual-type Poison/Dragon Legendary Pokémon introduced in Generation VIII. While it is not known to evolve into or from any other Pokémon, the player battles a powered-up form of Eternatus known as Eternamax Eternatus in the climax of Pokémon Sword and Shield.

Answer:

Eternatus is a Poison/Dragon-type Legendary Pokémon

Explanation:

Eternatus (ムゲンダイナ Mugendaina) is a Poison/Dragon-type Legendary Pokémon introduced in Generation VIII. It has an Eternamax form known as Eternamax Eternatus.

functions of bowman's capsule and materials absorbed in the bowman's capsule

Answers

Answer: The structural and functional unit of the kidney is called a nephron. It consists of two main parts viz. the glomerulus and the tubular system. The glomerulus is composed of Bowman’s capsule and a tuft of leaky blood vessels encapsulated by the Bowman’s capsule.

Glomerulus capsule is a tuft of capillaries that are found inside the capsule of Bowman. Bowman’s capsule is a sac-like organ that is present at the nephron’s tabular end, encapsulating glomerulus in it.

The primary purpose of the glomerulus is filtration. The leaky vessels filter into the glomerulus almost all the water, electrolytes, small proteins, nutrients such as sugar etc and excretory products such as urea, etc.

On a cellular level, why do we need to breathe?

a
Our cells need oxygen
b
Our cells need glucose
c
Our lungs are empty
d
Our cells need carbon dioxide

Answers

Answer:

A. Our Cells need Oxygen

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