Describe the biological needs for cells to be surrounded by a membrane that is selectively permeable for different materials.

Answers

Answer 1
the biological needs for the cell for it to surround by a membrane

Related Questions

When Jeremy returned home after vacation, he noticed that his new plant had not grown. His mother, a florist, told him that it was because the plant was not getting enough sunlight. He moved his plant closer to the window to get more sunlight. How can Jeremy best support the idea that his plant needs more sunlight? A) Ask his mother to make the plant better. B) Wait and see what happens to the plant. C) Remove the plant from direct sunlight after a week. D) Ask his science teacher at school what she thinks could be the reason.

Answers

Answer:

Why did you delete my answer? The answer is B.

Explanation:

If you leave it in the sunlight over a few days and start to see it grow more, then that proves that it needed more sunlight. It's the scientific method.

Answer:

b i think

Explanation:

i might be wrong

explain ecosystem deficiency

Answers

Answer:

An ecological deficit occurs when the footprint of a population exceeds the biocapacity of the area available to that population. If there is a regional or national ecological deficit, it means that the region is importing biocapacity through trade or liquidating regional ecological assets.

Hope this helps love. Have a great night! : )

Scientists have cloned goats so they can take out a protein in the goats' milk and use it to make medicine. The goats are raised in a laboratory. The medicine that is produced can help with certain diseases that affect humans. Which best describes a disadvantage of this scenario? The goats will have more genetic variation. The goats will become infected with the human diseases. There are unknown health risks to the goats. There could be many health risks to drinking the goats' milk.

Answers

Answer:

There are unknown health risks to the goats

Explanation:

Scientists have cloned goats who are raised in a laboratory.

(Cloned goats means genetic copies of goats)

Protein in the goats' milk can be used to make medicines that can help with certain diseases that affect humans.

However, this scenario involves a major disadvantage.

There are unknown health risks to the goats

The answer would be C.

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Brainiest would really make my day! :)

Create an informative story that illustrates various ways of preventing diseases
that affect the respiratory and circulatory systems. You must also show the importance of
keeping our bodies healthy and free from illnesses. You can use another sheet/s of paper if the
available space is not enough.

Answers

The correct answer to this open question is the following.

There is nothing most important than taking care of your body.

To do this, different methods will help to increase your health by improving your immune system.

preventing diseases

For instance, in the case of the respiratory and circulatory systems. You need to have a good diet that balances proteins, vitamins, carbohydrates, and lots of fruits and vegetables. Vitamin C is very good to strengthen the respiratory system.

Avoid sudden temperature changes, dress in layers, according to the climate conditions.

Regrading the circulatory system, nutrition is as important as any other thing. Avoid fats and excess sugar.

Respect sleeping time because good sleep is of the utmost importance. Be relaxed, avoid stressful situations that could compromise your heart., and practice moderate exercise routines such as walking, jogging, or proper gym routines.

Following are the various ways of preventing diseases  that affect the respiratory and circulatory systems.

Stop smoking, avoid air pollution and exposure to those people who have the viral infections.  Exercise regularly and eat a healthy diet.  Maintain a healthy weight and check up annually to doctor..

Staying healthy physically can help us to have good emotionally. Eating the right food keep us fit, strong and fight with illness so we can conclude that exercise and good food keep us fit and healthy physically and emotionally.

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The first comment is so wrong i made a 90% tho but the answer is: She is making observations in a digital laboratory.The photo shows a student conducting an experiment.

A woman wearing a lab coat and protective face mask and goggles holds test tubes in her hands as she looks at a laptop computer.

Answers

Answer:

I think that it is A: She is following an experiment in a digital library. because it looks like she is following what her teacher is doing

Explanation:

Answer:

I want to put- A. She is following an experiment in a digital library.

Explanation:

So its D??

What is photosynthesis and chlorophyll?

Answers

Answer:

photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

chlorophyll is a green photosynthetic pigment found in plants, algae, and cyanobacteria. Chlorophyll absorbs mostly in the blue and to a lesser extent red portions of the electromagnetic spectrum, hence its intense green color.

Hey there!

Photosynthesis is the reaction that converts light energy to chemical energy in sugar and carbohydrates. Humans can't eat sunlight, so we eat plants. Plants convert the energy in the sunlight into chemical energy using chlorophyll. Chlorophyll is a molecule produced by plants, algae, and cyanobacteria, which aids in the conversion of light energy into chemical bonds. It is the green pigment found in the chloroplasts of higher plants. They are a part of our ecosystem, and they are lower on the food chain.

Hope this helps!

Have a great day! :)

I need help please!!!!!

Answers

Organelles are the smallest cells and the organs are your heart, muscles and all that while your organelles are small cells

Need help ASAP!!!!

What is endoplasmic reticulum in your own word .

Answers

Answer: Recondilogist.

Explanation:

Answer:

Explanation:

The endoplasmic reticulum is a network of tubular membranes that are made of two subunits: the rough endoplasmic reticulum and the smooth endoplasmic reticulum.

Your body releases excess heat through evaporation of sweat. Which characteristic of life best explains this process?

Answers

Answer:

excretion is the characteristic that best explains the process

HELP !!WILL MARK BRAINLIEST !!! A star will remain stable and produce light and heat as long as which condition is true.

Answers

Answer: The inward force of gravity and the outward force of nuclear fusion are equal.

Throughout history, many unscientifically based claims have been made. One such claim was
that some people believed that fleas actually came from dust. Which part of the cell theory
provides a basis for disproving this claim?

Answers

Answer:

There are no options to this question, however, it can be answered. The answer is:

All cells arise from previously existing cells

Explanation:

The universal cell theory was proposed in 1830's by three scientists viz: Rudolf Virchow, Mathias Scleiden, and Theodor Schwann. The cell theory consists of three major components which are generally accepted and used till date. The components are:

- All living things are made up of one or more cells

- The cell is the fundamental and basic unit in every living thing.

- All cells arise from previously existing cells via cell division

According to this question, many unscientifically based claims including the believe that fleas actually came from dust have been made. This claim has been DISPROVED by the part of the cell theory that states that "All cells arise from previously existing cells via cell division". Hence, fleas do not arise from dust but from other cells according to cell theory.

It can be deduced that the cell theory that provides a basis for disproving this claim is that all cells are from existing cells.

What is a cell theory?

It should be noted that a cell theory simply means that all biological organisms are made of cells.

In this case, some people believed that fleas actually came from dust. This was proved wrong as the cell theory states that all cells are from existing cells.

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Question 2 of 5 v
Place the following from smallest to largest, with smallest on the top.
( Instructions
carbon-14 atom
helium atom
electron
proton
a glucose molecule
Next Question

Answers

Answer:proton,electron, helium atom,carbon 14 atom, molecules of glucose

Explanation:

The order for the given scenario can be electron, proton, helium atom, carbon 14 atom, and glucose molecule.

What is an atom?

An atom is a matter particle that defines a chemical element uniquely. An atom is made up of a central nucleus and one or more negatively charged electrons.

The nucleus is positively charged and contains one or more protons and neutrons, which are relatively heavy particles.

Protons and neutrons are roughly the same mass. However, one proton is approximately 1,835 times heavier than an electron.

A molecule is two or more atoms linked together by chemical bonds that form the smallest unit of a substance that retains its composition and properties.

Chemistry is built on molecules. Molecules are identified by the element symbol and a subscript indicating the number of atoms.

Thus, the electron, proton, helium atom, carbon 14 atom, and glucose molecule will be the correct arrangement.

For more details regarding an atom, visit:

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A new fat-burning pill for men is introduced. To test for effectiveness, 50 men are given the pill and 50 men are given a placebo. After 6 months, the men's body fat percentage is calculated. Identify the control group, the manipulated variable, and the responding variable. Explain how you can identify each.

Answers

Answer:

The correct answer is -

The control group - the group of men with a placebo pill,

The manipulated variable -  fat burning pill,

The responding variable - men's body fat percentage

Explanation:

The control group of a study is a group that did not get the treatment or manipulated variable so the comparison between the experiment group and the control group can be found and see what are the difference. Here the group of subjects that receives no treatment but a placebo pill only is the control group.

The manipulated variable is the treatment or the manipulation that can cause the response in the subject here the fat burning pills are manipulated variable. The responding variable is the variable known as the dependent variable that is measured to see what effect on the subject occurred here the body fat is the responding variable.

why is it important to protect the florida endangered plant campanula robiniae?

Answers

Answer:

Rarity itself leads to an increased risk of endangerment and extinction, because rare plants with few and small populations are less able to recover from random events that wipe out individuals or entire populations. This kind of risk is called “stochastic risk”.

Explanation:

Which of the following would most likely lead to an adaptation?

Answers

What’s the following then I’ll answer

What is it called when a whale has died and rested in the bottom of the ocean to provide nutrients for other animals and the soil?

Answers

Answer:

Decomposition.

Explanation:

Decomposition is the process in which dead or organic matter is broken down over time into simpler organic and inorganic matter. A whale resting at the bottom of the ocean will provide food for animals and restore nitrogen to the soil. Overtime, the whale will no longer exist. This is an example of decomposition.

What would the mechanical advantage of a ramp be if the length is 20 feet and the height is 5 feet?
1. 1000
2. 100
3. 4
4. 8

Answers

Answer:

Its 4  trust me

Explanation:

Mechanical Advantage = Force Output / Force input

in other words:

M.A. = 20 / 5

which makes the M.A. = 4

- you'r welcome

*Don't Answer 8*

Answer:

4 it is not 8

Explanation:

The infecting virus particle found outside the host cell is ________.

Answers

Answer:

capsid

When found outside of host cells, viruses exist as a protein coat or capsid, sometimes enclosed within a membrane. The capsid encloses either DNA or RNA which codes for the virus elements. While in this form outside the cell, the virus is metabollically inert; examples of such forms are pictured below.

Explanation:

About how long (tall) is TMV

Answers

the answer is 300nm x 18nm

Warmer water due to climate change might favor harmful algae in a number of ways: ... Warmer water is easier for small organisms to move through and allows algae to float to the surface faster. Algal blooms absorb sunlight, making water even warmer and promoting more blooms.

Answers

Answer:

See explanation

Explanation:

Actually, a warmer water is less dense than cold water. It follows that small organisms can easily move through a less dense water. Warm water allows algae to flow through it faster leading to an algal bloom facilitated by climate change.

The water will further be heated up by the fact that the increasing number of algae absorb sunlight thereby further increasing the temperature of the water. The foregoing explains the greater algal bloom in warm years.

What is the function of the hormone progesterone?

Answers

Answer:

its a on edg

Explanation:

lactic acid fermentation occurs in?​

Answers

Answer:

Lactic acid fermentation occurs in the cytoplasm of the cell.

It's a form of anaerobic respiration, and occurs when oxygen is unavailable in animal (muscle) cells and in some bacteria.

What is exocytosis and endocytosis? Think about what the words sound like.

Answers

Answer:

Endocytosis= movement of large molecules into a cell, then digestion occurs in the cell.

Exocytosis= movement of wastes from the cell.

Explanation:

Here are some examples of Endocytosis and Exocytosis:

Endocytosis= Example 1: food of Euglena, paramecium

                      Example 2: WBCs engulfing bacteria

Exocytosis= Example 1: wastes removal from cell      

Answer:

What is endocytosis? Endocytosis is cells that absorb external material by engulfing it with the cell membrane. What id exocytosis? Exocytosis is cells that move materials from within the cell into the extracellular fluid.

Explanation:

Hope this helps sorry if doesn't

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Describe the effect of an enzyme on the activation energy in a chemical reaction.

Answers

Enzymes are biological catalyst meaning they speed up reactions. They do this by lowering the activation energy which results in bond breaking much faster, leading to a quicker chemical reaction.

In conclusion, enzymes speed up a chemical reaction by lowering the activation energy, resulting in a faster rate of reaction as bonds break quicker.

Hope this helps even though its quite simplified! :)

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Order the steps of aerobic respiration:
A.) Glycolysis
B.) Electron Transport Chain
C.) Krebs's Cycle

Answers

Glycolysis, krebs’s cycle, and Electron Transport cycle

:3

Which of the following is a correct statement on the state of an enzyme at the conclusion of a chemical reaction ?

A( The enzymes is not changed by the chemical reaction.
B( The chemical reaction causes the enzyme to reduce in size
C( The products of the reaction never release themselves from the enzyme
D( The enzyme is dissolved by the substrate that covers it during the reaction.

Answers

Answer:

d

Explanation:

A correct statement on the state of an enzyme at the conclusion of a chemical reaction is: A. The enzymes is not changed by the chemical reaction.

An enzyme can be defined as a biological catalyst that typically speeds up (increases) the rate of a chemical reaction, by lowering (decreasing) the activation energy of its constituent chemical elements (reactants).  

Hence, the rate of any chemical reaction is faster when its activation energy is decreased, reduced or lowered.  

Furthermore, some of the characteristics associated with an enzyme include the following:

Enzyme structures (active site) are specific to the type of substrate they bond to.An enzyme may or may not require cofactors. The action of an enzyme in a chemical reaction may involve minerals.An enzyme can be used over and over i.e continuously, for different chemical reactions.

Basically, an enzyme can be used continuously (over and over) because it is not changed by the chemical reaction.

In conclusion, an enzyme is unchanged by the chemical reaction it catalyzes (speeds up).

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What bonds must be broken for water to vaporize?

Answers

Hydrogen bonds.

Hope this helps ;)

Which best describes how ocean currents are created?

1. differences in water temperature


2. differences in water volume

3. surface friction with the winds

4. variations in sediments

Answers

Answer: 1

I hope this helps you!

A prokaryotic cell has a nucleus. True or false?

Please help please thank u a lot

Answers

Answer:

A prokaryotic cell does not have a nuclues

Explanation:

how i remember it is pro=no(no nucleus)

and a eukaryotic cell you just remember of yourself  

Which section of the ladder codes for a hereditary trait?
A The top of the ladder
B The bottom of the ladder
C The vertical sides of the ladder
D The horizontal sections of the ladder

Answers

Answer:

the answer is C

Explanation:

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