What is the endosymbiotic hypothesis?

Answers

Answer 1

Answer:According to the Endosymbiotic Theory, the mitochondria and chloroplast in eukaryotic cells were originally aerobic bacteria (prokaryotes) that were consumed by a huge anaerobic bacterium (prokaryote).

Answer 2
Symbiogenesis, endosymbiotic theory, or serial endosymbiotic theory, is the leading evolutionary theory of the origin of eukaryotic cells from prokaryotic organisms

Related Questions

3-carbon-atom (3C) molecule produced in glycolysis is called______________________. Inside a eukaryotic cell, this molecule moves from ______________to ________________ and is oxidized into _____________. If oxygen is not present, it gets reduced into _____________ (in yeast) or ______________(in our muscle cells). Production of ATP in the absence of O2 is called____________________.

Answers

Answer:

PYRUVATECYTOPLASMMITROCHONDRIAACETYL COAETHANOL AND CO2LACTIC ACIDANAEROBIC RESPIRATION(FERMENTATION)

What is another way nitrogen is added back into the atmosphere BESIDES animal waste, but is too unreliable to count on?

Answers

Answer:

Plant and animal wastes decompose, adding nitrogen to the soil. Bacteria in the soil convert those forms of nitrogen into forms plants can use. Plants use the nitrogen in the soil to grow. People and animals eat the plants; then animal and plant residues return nitrogen to the soil again, completing the cycle.

Write a paragraph explaining how adhesion, cohesion and capillary action all enable water to go from the roots to the top of a tall tree.

Answers

Answer:

Capillary action helps bring water up into the roots. But capillary action can only "pull" water up a small distance, after which it cannot overcome gravity. To get water up to all the branches and leaves, the forces of adhesion and cohesion go to work in the plant's xylem to move water to the furthest leaf.

Explanation:

Hope This Helps!

Water is moved up through the plant by capillary action from the soil.

Hydrogen connections between water molecules give them a sticky property that allows them to form droplets. Droplets can stick to the plant  because of adhesion.

what is capillary action?

Capillary action is the movement of liquid along a solid's surface induced by the attraction of the liquid's molecules to the solid's molecules.

The movement of a liquid across the surface of a solid induced by adhesion between the two is known as capillary action.

The higher the water climbs on its own, the narrower the tube becomes. Water is forced up the columns of cells in the xylem and through fine tubes in the cell wall by adhesion in plants.

The transport of water through the plant is known as capillary action. When the adhesion is stronger than the cohesion, this movement happens. The attraction between water molecules is natural. The transient hydrogen bonds that they form are the source of their attraction.

what is adhesion and cohesion?

The act of attaching one thing to another is known as adhesion. Water adheres to the organic tissues of plants thanks to adhesion.

Cohesion is the property that allows molecules of the same substance to stick together.

Water molecules are held together by cohesion in plants. Intermolecular attraction leads liquids to create a top or outer layer that acts like a thin film.

The shape of water drops is determined by surface tension, which also holds structures together as they absorb water.

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Risk of toxicity is higher with fat- vitamins. True or False

Answers

Answer:

True

Explanation:

The fat-soluble vitamins, A, D, E, and K, are stored in the body for long periods of time and generally pose a greater risk for toxicity than water-soluble vitamins when consumed in excess. Eating a normal, well-balanced diet will not lead to toxicity in otherwise healthy individuals.

What is the concept of genetic engineering? Cite its advantages and disadvantage (if there is any).​

Answers

Answer:

Genetic engineering is the process of using recombinant DNA (rDNA) technology to alter the genetic makeup of an organism.

Disadvantages

The nutritional value of foods can be less. .

Pathogens adapt to the new genetic profiles

There can be negative side effects that are unexpected

The amount of diversity developed can be less favorable

Copyrighted genetic engineering can have costly consequences.

Advantages

More nutritious food.

Tastier food.

Disease- and drought-resistant plants that require fewer environmental resources (such as water and fertilizer)

Less use of pesticides.

Increased supply of food with reduced cost and longer shelf life.

Faster growing plants and animals.

Which statement isn't true?

Answers

Answer:

I'm pretty sure the answer is b. Cells can absorb food and oxygen

Letter B is wrong “cells can absorb food and oxygen”

Which term best completes the following analogy?

Elements : Atoms: Covalent compounds: _________

A. Bonds

B. lons

C. Mixtures

D. Molecules​

Answers

Answer:

C. Molecules

The best term that completes the analogy is Molecules

In a Lewis structure, what does a single line represent?

A. A single ionic bond

B. A single covalent bond

C. A double covalent bond

D. A single valence electron​

Answers

Answer:

The answer is B

Explanation:

it's supposed to represent a single covalent bond

Where do heterotrophs get phosphorus from?

Answers

Answer:

Heterotrophs rely on organic material and remineralize nutrients such as nitrogen and phosphorus when they are in excess of requirements.

reproducing plant and animals Which have desirable traits is called​

Answers

Selective Breeding....

How does the sucrose molecule leave the body?

Answers

Answer:

Short word, "Pee/Urine"

Explanation:

If your drinking water then color of your Pee is based what you drink.

How are the cells in the skeletal system helping me in the action of kicking a ball?​

Answers

Answer:

Flexion of the hip joint occurs when the femur (upper leg) moves forwards, which happens when long jumpers land or at the end of kicking a ball.

Explanation:

2. What is the name of the site on a chloroplast where half of the reactions in photosynthesis occur?
thylakoid membrane
cell wall
stroma
grana

Answers

Answer:

thylakoid

Explanation:

Hope this helps

Question 4
Each individual bundle of muscle cells is called a

Answers

Answer: a fasciculus

I am not sure but I think Quizlet is the right answer

Which organisms obtain energy from dead or decaying matter? Select two options.

groundhogs
daisies
earthworms
bacteria
humans
phytoplankton

Answers

Earthworms and bacteria organisms obtain energy from dead or decaying matter.  Thus, the correct option is C and D.

What is organic matter?

The term "organic matter" refers to material that contains carbon compounds produced by living things. Lawn trimmings, leaves, twigs, branches, moss, algae, lichens, any animal parts, sewage sludge, sawdust, insects, earthworms, and bacteria are just a few examples of what it includes.

The main decomposers in many ecosystems are fungi and bacteria, which utilise the chemical energy in dead matter and wastes to power their metabolic processes. Detritivores, sometimes known as trash or debris eaters, are other types of decomposers. Typically, these are creatures with several cells, like vultures, earthworms, crabs, or slugs.

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Answer:

C, D

Explanation:

i took the test

a plant grows 3 inches faster per dat when placed on a window sill than it does when placed on a coffee table. Determine if observation is qualitive or quantitive

Answers

Answer:

sg5ntg4r4fhynumybtcrbu

ny f gh

Explanation:

chnbunmhbcrxrctvub

Cuál es la utilidad de la lógica argumentativa en la comunicación

Answers

Answer:Comunicación argumentativa para la investigación-acción ... espectro innovador de su diseño de la lógica que enseña a investigar problemas y ...

Explanation:

In the water cycle, at some point water vapor (gas) turns back into a liquid, we
call this precipitation. The liquid is typically in the form of rain, snow, or hail.
Which of the following properties is the reasoning behind the formation of a rain?
(Multiple Choice)
a. Universal Solvent
b. Cohesion
C. Adhesion
d. Surface Tension
e. Homeostasis

Answers

B.Condensation

is the process where water vapor (a gas) changes into water droplets (a liquid). This is when we begin to see clouds.

A tiny fraction—just 0.001 percent—exists in the Earth's atmosphere as water vapor. When molecules of water vapor return to liquid or solid form, they create cloud droplets that can fall back to Earth as rain or snow—a process called condensation. Most precipitation lands in the oceans.

In complementary DNA strands, which bases pair together?

Answers

Answer:

Adenine pairs with Thymine, and Cytosine pairs with Guanine

aproximately how many HeLa cells are there?

Answers

Over the course of 26 years, 600,000,000 HeLa cells have been produced in my laboratory each week, for a total of 800 billion cells. That is a lot of cells, but it's nothing compared with the total number of cells – approximately 100 trillion – that make up a human.

Jane is doing an experiment to find out how the size of a bowl affects the growth of the goldfish living in that bowl. She has three identical goldfish. She puts them in three bowls of different sizes. Every day, Jane looks at the goldfish in each bowl. In addition to looking, what should she do?

Answers

Answer:

maybe she should feed the gold fish

She should change the water she should change the container to see the change 'cuz there will be a change.

Answer:

C: Record her observations each day

Explanation:

I got it correct.


Section Review
1. Construct Make a table to record information about the four main organic
molecules that make life possible. The table column headings should be
"Molecule," "Description," and "How Used by Living Things."

Answers

The four major classes of biomolecules are carbohydrates, lipids, proteins and nucleic acids. These biomolecules are fundamental for the functioning of all biological systems.

Molecule: carbohydratesDescription: complex carbohydrates are polymers composed of many subunits called monosaccharides (i.e., simple carbohydrates) linked by glycosidic bonds.How Used by Living Things: structural and energy roles. Complex carbohydrates provide a more lasting energy source in the body than simple carbohydrates.

Molecule: lipidsDescription: lipids are a broad category of biomolecules that may be composed of one or more fatty acid chains and a glycerol backbone. How Used by Living Things: lipids provide a source of long-term energy for cells, heat insulation, structural roles in the cell membrane (phospholipids and cholesterol, etc).

Molecule: proteinsDescription: proteins are polymers composed of a linear chain of amino acids linked by peptide bonds.How Used by Living Things: proteins have structural (e.g.,  actin filaments) and enzymatic (e.g., catalase) functions.

Molecule: nucleic acidsDescription: nucleic acids (DNA and RNA) are polymers consisting of long chains of nucleotides.How Used by Living Things: DNA contains the hereditary information which is required to synthesize any protein. RNA serves as a transition molecule that helps to regulate the type and amount of proteins in cells.

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all of the following are characteristics of living things expect​

Answers

Answer:

The ability to move

Explanation:

Have a good day

Answer:

homeostasis

Explanation:

Question:

All of the following are characteristics of life except:

a. growth

b. homeostasis

c. movement

d. reproduction

e. energy use

Nucleus is found in...
A. prokaryotic cells.
B. eukaryotic cells.
C. all cells.

Answers

Answer:

Eukaryotic cells

Explanation:

Prokaryotic cells do not have a nucleus but eukaryotic cells do.

Hope this helps!

C. Eukaryotic cells.

All cells can be classified into two groups: eukaryotic and prokaryotic. Eukaryotes have a membrane-enclosed nucleus and organelles, whereas prokaryotes do not.

Describe the elements and compounds of coal being mined

Answers

Answer:

The organic compounds in coal are composed of the elements carbon, hydrogen, oxygen, nitrogen, sulfur, and trace amounts of a variety of other elements

Coal is a mixture of organic compounds and minerals formed from ancient plant material, primarily composed of carbon, hydrogen, and impurities like sulfur and nitrogen.

Coal is a mixture of organic compounds and minerals, resulting from the decomposition of ancient plant material over millions of years. It primarily consists of carbon, hydrogen, oxygen, nitrogen, and sulfur. Carbon, the dominant organic compound, makes up a substantial part of coal's composition, with hydrogen and oxygen occurring in lesser amounts.

Nitrogen and sulfur are present as impurities, in the form of organic compounds and mineral components. Coal also contains inorganic minerals like quartz, clay, and pyrite, contributing to its ash content. Trace elements, such as mercury, arsenic, and lead, are present in low concentrations. The exact composition varies based on coal type and location, influencing its energy content and environmental impacts.

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The complete question is:

Describe the elements and compounds of coal being mined.


Which of the following best describes gasoline?
Solid
Low energy
Stable
Combustible

Answers

Combustible, light it on fire. It goes BOOM.

1._______ is what farmer should do in order that plant will grow fast and productive?
2._______a practice to help promote the growt of root's and improve aeration for fast absorption by the soil.
4._______is also called rows cultivation and is done only by cultivating the soil in rows or between the two plants are being cultivated.
5._______is cultivating the soil towards the base of the plant or cultivation around the plant. ​

Answers

Answer:

1.Planting

2.Cultivating

4.Tilling

5.Hilling Up

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Miss Hawaii

What are CAM plants?​

Answers

Explanation:

A plant that utilizes the Crassulacean acid metabolism (CAM) as an adaptation for arid conditions. CO2 entering the stomata during the night is converted into organic acids, which release CO2 for the Calvin Cycle during the day, when the stomata are closed.

Q6.2. There are many diseases that do not infect a person more than once, such as chicken pox
and measles. What is responsible for this lifetime immunity?

The innate immune response, because barriers to entering the body improve with age.

The innate immune response, because adults have more white blood cells than children.

The acquired immune response, because antibodies are developed from previous infections.

The acquired immune response, because it responds rapidly to broad classes of pathogens.

Answers

The responsible for this lifetime immunity is the acquired immune response because antibodies are developed from previous infections. The generation of antibodies is a response to these infections.

The acquired immune system eliminates pathogenic organisms and any toxic molecules they produce.

The acquired immune system has two mechanisms of action: humoral immunity and cellular immunity.

Humoral immunity, also known as antibody-mediated immunity, involves the activation of specific blood cells (B cells) and subsequent secretion of antibodies when in contact with a pathogen.

Thus, the acquired immune system develops specific antibodies as a response to infections (e.g., chickenpox and measles).

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BRAINLIEST FIR RIGHT ANSWERS, WHAT SHAPE AND WHY?
4. Hydrogen cyanide (HCN) is a colorless gas. It is poisonous and smells like
almonds. On a piece of scratch paper, draw a Lewis structure for this compound. (you
do not need to show the picture)
Using that drawing, explain what shape you think this molecule is and WHY you
think it would be this shape. (4 points)
it would be an oval because the
A/
ORI

Answers

Answer:

Explanation:

Hydrogen cyanide (HCN)

The molecular geometry of HCN is linear. The compound is polar in nature.

As Carbon is bonded to two atoms, it follows the molecular geometry of AX2. And as per VSEPR theory, molecules covered under AX2 have a linear molecular geometry.

Hence Hydrogen Cyanide has linear molecular geometry.

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