Why do you think cells of the epithelial tissue are close together?

Answers

Answer 1

Answer:

Hope it help you

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Explanation:

The free surface of epithelial tissue is usually exposed to fluid or the air, while the bottom surface is attached to a basement membrane. The cells in epithelial tissue are very closely packed together and joined with little space between them. ... Epithelial tissue functions to absorb, secrete, and excrete substances.

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Related Questions

What is a carbon hydrate molecule?

Answers

Answer: A carbohydrate is an organic compound such as sugar or starch, and is used to store energy

Explanation:

Answer:

A carbohydrate is an organic compound such as sugar or starch, and is used to store energy. Like most organic compounds, carbohydrates are built of small, repeating units that form bonds with each other to make a larger molecule. ... Carbohydrates contain only carbon, hydrogen, and oxygen.A

Explanation:

With respect to one another, galaxies have been found to be
1. moving closer together
2.moving farther apart
3.moving in random directions
4.stationary​

Answers

The answer is moving farther apart

With respect to one another, galaxies have been found to be moving farther apart from each other. The correct option is 2.

What are galaxies?

Galaxies are large areas that contain stars, dark matter, dust, interstellar gases, etc. It is a gravity-bound system that contains everything in its own place.

There are many galaxies, some are still undiscovered. Our galaxy in which the earth is present is called the Milky Way. It is called the Milky Way because due to many stars it looks like a shiny white path.

Now, the Big Bang Theory says that the universe is made up of expanding of a single point. And the universe is still expanding, so the galaxies' and other matters still going farther away.

Thus, the correct option is 2. Moving farther apart.

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At which point in the graph has the population reached carrying capacity?

A. Point B
B. Point A
C. Point C
D. Point D​

Answers

A. Point B is the answer

Explain how human activities may have led to species being threatened or endangered?

Answers

Answer:

Invaded their habitats and hunted them

Explanation:

Species become endangered for two main reasons: loss of habitat and loss of genetic variation. A loss of habitat can happen naturally Human activity can also contribute to a loss of habitat. Development for housing, industry, and agriculture reduces the habitat of native organisms.

Hope dis helps! :D

Look at the images below and order them from smallest to largest, using 1 for the smallest unit and
3 for the largest
Plant Cell
Atom
Molecule

Answers

Hey :)


3- plant cell
2- molecule
1- atom

Hope this helps :)

true or false? diffusion requires energy from respiration

Answers

Answer:

true

Explanation:

Diffusion does NOT require energy from respiration because it can only move material in the direction of a concentration gradient. An example contradicting this statement is Active transport, a process that is required to move molecules against a concentration gradient. This process requires energy from respiration.

ANSWER: False

21. Which of the following statements about catabolic pathways is false?
a. Carbohydrates can feed into oxidative phosphorylation.
b. Glycogen can be broken down into glucose and feed into glycolysis.
c. Amino acids can feed into pyruvate oxidation.
d. Fatty acids can feed into the citric acid cycle.

Answers

from my point of view I think the answer should amino acid can fit into pyruvate oxidation

Carbohydrates can not feed into oxidative phosphorylation, firstly carbohydrates catabolize through glycolysis and the citric acid cycle and release electrons which feed into oxidative phosphorylation.

What are catabolic pathways?

Acetyl-CoA, a chemical that "feeds" the citric acid cycle, can be produced from pyruvate (a byproduct of glycolysis), fatty acid -oxidation, ketone bodies, and amino acid metabolism.

The citric acid cycle is "cataplerotic" when molecules from other routes enter it for catabolism. Amino acids catalyze the breakdown of pyruvate.

Alanine, serine, glycine (through serine), and cysteine are among the amino acids with three carbon atoms that are transformed into pyruvate (the entry point for the citric acid cycle or gluconeogenesis)

Therefore, carbohydrates can feed into oxidative phosphorylation is false about the catabolic pathway, hence option A is correct.

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does breast cancer occur in men? what are the signs and symptoms?

actually anatomy & physiology

Answers

Answer:

Yes

Explanation:

Breast cancer can occur in men. Symptoms can include a hard lump in the breast area, nipple discharge, the nipple turning inwards, and/or a rash around the nipple.

I have never heard dog and Brest in the same sentence till now

ASAP Describe the levels of protein folding- primary, secondary, tertiary & quaternary structure of proteins.

Answers

Answer:

Hope it help you

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Explanation:

The different levels of protein structure are known as primary, secondary, tertiary, and quaternary structure. The primary structure is the sequence of amino acids that make up a polypeptide chain. ... The exact order of the amino acids in a specific protein is the primary sequence for that protein.

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which best describes the big bang theory

Answers

Answer:

The expansion and cooling of the universe from an originally hot and dense state.

Answer: D. The universe formed during a single event in which all matter and energy suddenly expanded from an extremely small, dense, and hot point of pure energy called a singularity.

The presence of organic material in soil makes it more productive for plant growth.

Please select the best answer from the choices provided

T
F

Answers

Answer:

True

Explanation:

Organic matter in the soil is called "humus". It is formed by the decomposition of plant material by microorganisms.

It is extremely important for retaining water and nutrients in the soil, both of which are crucial for plant growth and survival. Therefore, organic matter in the soil makes the soil much more "productive."

When a single-celled organism reproduces,what is the result​

Answers

Answer:

its called asexual reproduction

When a single-celled organism reproduces, asexual reproduction takes place.

What do you mean by asexual reproduction?

Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes.

Asexual reproduction is a mode of reproduction in which a new offspring is 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.

In asexual reproduction, one parent copies itself to form a genetically identical offspring. Sea turtles are an example of an animal that reproduces sexually, a volvox (green algae) is an example of an organism.

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PLEASE ANSWER ASAP. Thank you. QUESTION: Explain the evidence that suggests that the universe is expanding.

Answers

One piece of evidence that proves that the universe is expanding is that there is a direct relationship between the speeds of distant galaxies and their distances from Earth. In fact, Hubble discovered that the farther away a galaxy is, the faster it is moving away from us. Although scientists today still don’t know the nature of this mysterious energy causing this acceleration, Hubble’s evidence has strengthened many theories about the large-scale structure of the universe.

Im so sorry if im asking alot of questions but i dont know anything so can someone help me ?

Answers

Answer:

The homogeneous mixture is only in the one phase of matter, whereas heterogeneous mixture is always in two or more than two different phases of matter. Solutions are termed as the homogeneous mixtures, on the other hand, suspensions or colloids are termed as the heterogeneous mixtures.

Examples:

Homogeneous:

Bronze: this alloy is an example of homogeneous substances since it is composed of tin and copper.

Milk : this mixture that we see in a uniform way is composed of substances such as water and fats.

Heterogeneous:

Mixtures in two or more phases are heterogeneous mixtures. Examples include ice cubes in a drink, sand and water, and salt and oil. The liquid that is immiscible form heterogeneous mixtures. A good example is a mixture of oil and water.

an elements has two or more atoms with the same number of protons but different
number of neutrons it is called a(n)
isotope
neutron
electron
none of the above

Answers

Answer isotope

Explanation: it has more than one atom

All animals go through puberty which prepares their body to have offspring. The cause for the changes in our body are due to hormones being released into the blood stream to different organs in your body. List and explain two organ systems involved.

Answers

Answer:

Endocrine and Circulatory system

Explanation:

Endocrine releases horomones while circulatory circulates blood around the body. The hormones are transported around the body in blood.

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Question: A marine biologist is testing the hypothesis that cold water promotes the growth of corals. Which of the following study designs may yield the most conclusive results?

A.) Two study sites with stable differing water temperatures, similar water nutrient profiles, and similar coral communities growing at different depths

B.) Two study sites with fluctuating water temperatures, similar coral communities growing at similar depths, with similar water nutrient profiles

C.) Two study sites with the same temperature profile, different coral communities growing at different depths, with different water nutrient profiles

D.) Two study sites with stable differing water temperatures, similar coral communities growing at similar depths, with similar water nutrient profiles

Answers

It’s d because it makes the most sense

The statement that reveals the best study designs and may yield the most conclusive results is as follows:

Two study sites with stable differing water temperatures, similar water nutrient profiles, and similar coral communities growing at different depths.

Thus, the correct option for this question is A.

What is Hypothesis?

In experimental biology, the hypothesis may be defined as a testable statement about the relationship between two or more variables or a proposed explanation for some observed phenomenon. It is basically an assumption that is made based on some evidence.

According to the context of this question, the hypothesis that best demonstrates the most conclusive results for the above experiment is the stable differing water temperatures, similar water nutrient profiles, and similar coral communities growing at different depths. This is because the depths of the coral may vary with respect to the nutrients available in an aquatic ecosystem.

Therefore, the correct option for this question is A.

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What are some of the major forces that influence the movements of the oceans?

Answers

Wind and plates moving

Some astronomers work for consulting firms that provide expertise to government agencies. Which of the following explains why an astronomer would work as a consultant?


An astronomer would be able to focus on research alone.

An astronomer would not have to obtain a national security clearance.

An astronomer would apply expertise to improve satellite designs.

An astronomer can make more money working as a consultant.

Answers

Answer: An astronomer would apply expertise to improve satellite designs

The one that explains why an astronomer would work as a consultant is an astronomer would apply expertise to improve satellite designs. The correct option is c.

Who is an astronaut?

An astronaut is a person who works in the areas of space. They have knowledge of space equipment, and technologies.

A satellite is an instrument that revolves around the planets. There are natural satellites and artificial satellites. Natural satellites are the moon and artificial satellites are made by space design artists and all the activities are checked by astronauts.

A consultant is an assistant that works with an astronaut. They have expertise in technologies and assistance in the making of space equipment.

Therefore, the correct option is c. An astronomer would apply expertise to improve satellite designs.

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Which term can be described as "many different species living together, interacting with each
other and with their physical environment?
A. a food chain
B. a food web
С. a nutrient cycle
D. an ecosystem

Answers

Answer: D

Explanation: community forms an ecosystem by its interaction with the abiotic environment. Species: A group of organisms that can potentially interbreed to produce fertile, viable offspring.

true or false? diffusion is a result of the random movement of particals

Answers

The kinetic energy of the molecules results in random motion, causing diffusion. In simple diffusion, this process proceeds without the aid of a transport protein. it is the random motion of the molecules that causes them to move from an area of high concentration to an area with a lower concentration. The rate of this movement is a function of temperature, viscosity of the fluid and the size (mass) of the particles. Diffusion explains the net flux of molecules from a region of higher concentration to one of lower concentration. However, diffusion can still occur in the absence of a concentration gradient. Diffusion requires energy input from the cell. ... Only water can diffuse across a cell membrane. Molecules move from areas of high concentration to areas of low concentration. - Passive transport is the diffusion of substances across a membrane. - Facilitated diffusion is the process of spontaneous passive transport of molecules or ions across a cell's membrane via specific proteins. Concentration gradient, size of the particles that are diffusing, and temperature Examples of diffusion in living organisms

Oxygen and carbon dioxide, dissolved in water, are exchanged by diffusion in the lungs: oxygen moves down a concentration gradient from the air in the alveoli to the blood. carbon dioxide moves down a concentration gradient from the blood to the air in the alveoli. What determines the direction of any diffusion process? The relative concentration of the substance in different areas determines the direction of diffusion. Diffusion occurs from regions of high concentrations to regions of low concentration. What determines the direction of any diffusion process? The relative concentration of the substance in different areas determines the direction of diffusion. Diffusion occurs from regions of high concentrations to regions of low concentration. moves into a cell by osmosis, it is moving into an area of higher solute concentration. ... It helps maintain the balance of materials needed for survival, such as oxygen and water. Hope this helped you and can you please mark me as brainiest please!!!!

Are viruses alive
Explain

Answers

Answer:

Yes i think so

Explanation:

Answer:

Yes, because the coronavirus just proves it-

Explanation:

A landscaper is shopping for landscaping materials. She wants to use materials through which water flows easily. Which two materials should she choose? Clay and gravel gravel and loosely packed soil granite and rocks with cracks rocks with cracks and clay

Answers

Answer:

The correct answer is -  Clay and gravel

Explanation:

Water can flow from the substance or material with greater porosity which is the number of pores resent in the particles of soil for easy exchange of water and gases.

Clay particles exhibit a higher amount of pores that permit the water to flow from it.  Gravel allows water to pass from it as it is a loosely packed fragment of rocks

Answer:

gravel and looselypacked soil

Explanation:

Which statement best describe the way thay an adesine phiphosphate molecule become an adenosi trphosphate molecule in the human body?

A. Protein cause phosphate molecule to bind to sugar and form ATP.
B. Food energy is used to attach a phosphate molecule to an ADP molecule.
C. Lonized Oxygen in cells causes sugars and phosphate molecule to form ATP.
D. Water breaks down ADP molecules which form into ATP molecules over time.​

Answers

Answer:

B. Food energy is used to attach a phosphate molecule to an ADP molecule

Explanation:

Hope this helps!

What is a substrate? A)the difference between a chemical reaction and an enzyme B)the place where an enzyme attaches itself C)It is a sticky molecule. D)the molecules that the enzyme sticks to in a chemical reaction E)a molecule that releases the energy in a chemical reaction

Answers

Answer:

D is correct answer...!

Explanation:

Enzyme binds with substrate to form ES complex.

E+S--->ES Complex--->E + P

b) How does the thermal energy of solid water change as it melts?

Answers

When ice melts, it’s temperature remains constant until all the ice turns to water.

Answer:

Hi! So solid water would be ice, the particles in ice are very close together which makes it firm and makes it ice. When you put the ice in the microwave, (Microwave has heat so it would be thermal energy!) the particles in the ice mover a tiny bit away from each other which then makes it water. Then, if you boil the water, the particles that are in the water move far away from each other and it turns into steam!

Hope this helps!! Stay safe! <3

When two species are forced to interact in a particular environment, how would
relationships of competition, predation, and mutualism affect the two populations?

Answers

Answer:

Find the explanation below.

Explanation:

When two species find themselves in the same environment, the quest for survival would lead to interactions among themselves.

Competition would result when there are limited resources. For example, when Tigers and Lions who feed on the same prey exist together in an environment, a competitive relationship can result.

Predation is a sort of interaction where an organism feeds on a prey to survive. Here, the weaker animal/species stands the risk of being defeated in the battle for survival. For example, in some homes where cats and rats exist, the cats tend to prey on the rats.

Mutualism is a form of symbiotic relationship where the animals exist together in a cooperative manner. Most fungal species have been found to have a mutualistic relationship with the roots of plants. Each of these two is important to each other's survival.

Which type of energy pyramid can be inverted?


A) pyramid of numbers

B) pyramid of biomass

C) pyramid of energy

D) pyramids of numbers, biomass, and energy

Answers

Answer:B

Explanation:

Answer:

The correct answer is D

Explanation:

Cellular respiration uses one glucose molecule to produce a total of

A. 36 ATPs.

B.38 ATPs.

C. 2 ATPs.

D. 24 ATPs.

Answers

Cellular respiration uses one glucose molecule to produce a total of 38 ATPs (option B).

What is cellular respiration?

Cellular respiration is the process by which cells obtain chemical energy by the consumption of oxygen and the release of carbon dioxide.

Cellular respiration occurs in three processes namely;

Glycolysis; this is the cellular degradation of the simple sugar glucose to yield pyruvic acid, and ATP as an energy source.

Krebs cycle; this is a series of enzymatic reactions that occurs in all aerobic organisms; it involves the oxidative metabolism of acetyl units, and serves as the main source of cellular energy.

Electron transport chain; this is a series of electron transfer that results in the synthesis of large amount of energy.

In total, the overall process of cellular respiration results in the formation of 38ATPs.

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Answer:

A. 36 ATPs.

Explanation:

took the test good luck! ;)

Andrew wants to determine if playing classical music will affect the growth of his rose buses. Determine three constant variables of this experiment.

Answers

Answer:

The fourth option

Explanation:

I am pretty sure that it is the fourth option

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List the powers of the National Government PLS HELP Refer to the given sets information Y U Z of onehas 30 daysThe month of Novembersundayday is chosen at random, what is theprobability that was a sunday 20 POINTS PLZ HELP!!!!Think of an event that happened over the summer break. It can be simple. Maybe a trip to the park, a family gathering, or a fun gets together with friends. It may be more involved like a big vacation or a new experience you had. Use your five senses to describe the event. Help your reader feel like they are there, experiencing the event with you. What did you see? How did you feel? What sounds could be heard? Any smells in particular? Hailey is a National Guard member who is scheduled to be deployed two years from now. How much training is he required to complete? A:24 daysB:15 daysC:39 daysD:78 days The leader in the British abolition movement was... Mary Stewart. Frederick Douglass. William Wilberforce. Olaudah Equiano. Only 30% of China's land is suitable for farming *TrueFalse Which are equivalent to Two and one-third times three-fourteenths? Check all that apply.One-halfSix-thirds times three-fourteenthsSeven-thirds times three-fourteenthsStartFraction 18 over 42 EndFractionStartFraction 21 over 42 EndFraction Elements are arranged in the periodic table based on various patterns. For example, elements found in the rows near the topAhave higher atomic numbers than the elements in the rows near the bottom.all have the same atomic number.C.have lower atomic numbers than the elements in the rows near the bottom.D. have the same atomic numbers as the elements in the rows near the bottom. Asapppp!!!!Plz !!!! -What factors make it difficult for scientists to classify world climate regions?ABCD I need help and also I am not sure in #1. Are these questions different at all? And if so whats the answer to them? Please help im a bit confused IF YOU CAN GET THIS YOU CAN GET SOME POINTS HURR BRAINLIEST IS WAITING!!!!!My twin lives at the reverse of my house number. The difference between our house numbers ends in two. What are the lowest possible numbers of our house? MY HOUSE NUBER IS 19 5. If you want to get a black belt in karate, then you must first get a brown belt. If you want to get a brown belt in karate, you must first get a white belt. Question 9 (1 point)The histograms and summary statistics summarize the data for the number of hits in the season by baseball playersin two leagues. Each data set contains one outlier. What are the values of the two outliers? Explain how each valueis determined to be an outlier.Some summary statistics for the number of hits by players in each league.mean median standard deviation minimum Q1 Q3maximumleague A 151.12 148 26.8329136 167 207league B 163.25 157 24.93136 145 178 256Plsss helppp Measure the angle and classify it as right, acute, or obtuse. Let p = 5 - 2i and q = -3 + 7iWrite the expression in the form a + bip +9 VERY EASY!! After reading each one, select the phrase that best describes what the email tells us about the person writing it how were spains goals for exploring the American s DIFFERENT from the goals of France and Great Britain