What are some strength and weakness of cell membranes?

Answers

Answer 1

Answer:

Some strengths of the cell membrane would be being able to have control in what comes in and out of the cell. The cell membrane is semi-permeable meaning only certain things can come into the cell. In active transport, the membrane gives proteins to passing substances.

Answer 2

Answer:

1) a series of circulation cells for the tropics, (2) a series for the polar regions and (3) a very dynamic series of cells in the midlatitudes

Explanation:


Related Questions

why is modification of seed is useful​

Answers

Benefits of modification of seed :-

More nutritious 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.

Megan observes four cells under a microscope and makes sketches of them as shown. Identify whether the cells are prokaryotic or eukaryotic.

Answers

Prokaryotes don’t have nucleus
Eukaryotic have nucleus

The body has a number of systems that protect against infection.
Which of the following correctly orders four of these systems from most to least foundational?
Choose 1 answer:

A. B cell lymphatic tissue, lymph node, lymphatic system

B. B cell, lymphatic tissue, lymphatic system, lymph node

C. lymphatic tissue, B cell, lymph node, lymphatic system

Answers

Th appropriate ordering of the body system from least to most foundation in which they protect the body against infection is as follows.

 cell lymphatic tissue, lymph node, lymphatic system, option A is correct.

The body has levels of organisation that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs

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Why do cells go through division?
A. Repair
B. Reproduction
C. Growth
D. All of these are correct

Answers

Answer:

The answer should be D because all of these are the reasons.

I would say the answer is A and D and not B as cell division is the process of when the cell grows in the interphase, the nucleus go to opposite side of the cell and then they split pls make me brainliest if ur reading yhis :)

Which of the following best describes an antigen?

Answers

d.a protein that attacks foreign molecules

B. A recognition molecule on the surface of the cells.

What is antigen?

An antigen is a substance that is capable of triggering an immune response in the body. It is typically a foreign substance, such as a pathogen (e.g. a virus or bacterium), a toxin, or a non-infectious particle (e.g. pollen or dust), that is recognized by the immune system as being foreign and potentially harmful.

When an antigen enters the body, it is recognized by immune cells called B cells and T cells, which produce proteins called antibodies to help neutralize and remove the antigen. The antigen-antibody interaction is a key part of the body's immune response and helps to protect us against infectious diseases.

Antigens can also be present on the surface of our own cells, such as cancer cells or transplanted organs, and can trigger an immune response if they are recognized as foreign by the immune system.

Overall, antigens are important components of the body's immune system and play a critical role in protecting us against infectious diseases and other threats.

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Which of these structures are used to eliminate wastes in an earthworm?

A. Nephridia
B. Sperm ducts
C. Oviducts

Answers

Answer:
A: Nephridia

what are the two primary types of water pollution that have to do with where the pollution came from
Point source and non point source
Physical and liquid
Groundwater and surface water
Chemical and biological

Answers

Answer:

Groundwater and surface water .

Explanation:

Note:- If you have more questions then let me know !!

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

Answers

Answer:

all above

Explanation:


Find three consecutive odd numbers whose sum is 117. Find two ways to do this.

Answers

this isn’t biology lol
38, 39, 40
The way I did this is I knew that 50 would be too high so I assumed it was somewhere in the 30’s or 40’s so I just tried the lowest numbers in both of them then the highest in the 30’s

1.3.1 Project - Semester 1 Honors Biology Project, Part 1 (Project) PLEASE DONT KNOW WHAT IT TOPICS IT MEANS TO CHOOSE FOR THIS PROJECT

Answers

Answer:

This is very vague. I am pretty sure that there are other instructions.

Which of the following describes a process of succession after a forest fire?
A. Small plants and trees grow back at the same time.
B. Two types of plants grow side by side.
C. Small plants grow but are eventually replaced by larger plants.
D. Animals and plants both grow in the area.
SUBMIT

Answers

Answer:

D if I'm D correct, or A maybe C, mostly D.

Answer:

C. Small plants grow but are eventually replaced by larger plants

Explanation:

Which of the following is an example of an adaption?

A: Wolves work together to catch prey
B: A dog walks without pulling on its leash
C: Ducks swim near the shore by a picnic area, where food is always available
D: Birds living near a highway learn not to fly away every time a car passes

Answers

Answer:

D

They are adapting to their environment to increase chances of survival.

Although both eukaryotes and prokaryotes are capable of causing infectious diseases in humans, eukaryotes are unique because they have a/an:

Answers

Answer:

organized nucleus

Explanation:

Which process is absent in animal cells?


making proteins

chemical reactions

respiration

photosynthesis

Answers

Answer:

photosynthesis

Photosynthesis animal cells does not use a photosynthesis ☺️.

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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

The purpose of the light-dependent reactions of photosynthesis is to -

a
split water to form oxygen
b
produce sugars
c
join glucose molecules to form starch
d
uses energy molecules like ATP

Answers

I think the correct answer is B.


The organelles that break down lipids, carbohydrates, and proteins into
small molecules that can be used by the cell are called *
A. vacuoles
B. lysosomes
C. ribosomes
D. microfilaments

Answers

Answer: B
Explanation: Lysosomes are membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers—proteins, nucleic acids, carbohydrates, and lipids.

PLZ HELP BRO its about environmental systems​

Answers

The answer should be B

Multiple choice please help!

Answers

Answer:

A=T is the answer ..............

Answer:

The correct answer is A) A=T

Explanation:

Which are two molecular groups that distinguish proteins from carbohydrates?​

Answers

Proteins are different from carbohydrates due to the presence of

NitrogenCarbonHydrogenOxygen

what is all of the dna in a set of 23 chromosomes referred to as?

Answers

Answer: The Genome

Explanation:

a change in DNA structure that might be beneficial, harmful, or neutral. What is all of the DNA in a set of 23 chromosomes referred to as? The genome

How does the water cycle cause weather? Choose any that are correct

Answers

Answer:the 1st and 2nd one

Explanation:

I’m probably late but the reason is that they help in the process of forming a cloud that will eventually lead to weather like it being cloudy or rain.

We need to recycle our waste because Earth is a closed system with respect to
matter, and new matter does not enter the environment. Agree or disagree

Answers

I disagree because although recycling is good, Earth firstly is not a closed system and new matter enters the environment all the time, such as comets.

In terms of matter, the Earth is often referred to as a closed system. In other words, the total amount of matter on Earth neither changes nor becomes more or less; Instead, it can take on different forms due to different processes.  So, I am agree with this statement.

Although the Sun provides the world with continuous energy, most of the actual matter on Earth is recycled and used in various cycles. Recycling of waste is important because it enables us to recover useful materials and resources, reducing the need for mining new raw materials from the earth. Recycling helps us to reduce the environmental damage caused by the extraction and disposal of waste as well as the depletion of natural resources. It helps maintain long-term equilibrium inside a closed system of matter on Earth.

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a mechanism for evolution in nature

Answers

Answer:

Natural selection

Explanation:

Have a great day!

Answer:

natural selection

Explanation:

natural selection is one of many mechanisms for evolution in nature. it's one of the most viewed mechanisms for evolution. Natural selection occurs when one allele makes an organism that is more or less fit, that has the ability to survive and reproduce.

hope this helps :)

explain the interaction between geological events, human population, and the environment

Answers

The relationship between the environment, human population and geological events is complex and multidimensional. While human activities can also have significant effects on geological processes, geological events such as earthquakes, volcanic eruptions and climate change can have significant effects on the environment and human populations.

What is an Environment?

The conditions and forces that surround an organism, population or community are called its environment. It includes all elements of the Earth, both living and non-living, such as the atmosphere, hydrosphere, lithosphere, and biosphere.

The environment is a complex system that living things interact with and influence how they survive, develop and thrive. This includes biological elements such as plants, animals, microorganisms and their interactions, as well as physical elements such as temperature, light, water, soil, wind and topography.

Therefore, the relationship between the environment, human population and geological events is complex and multidimensional.

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HELPPPPP!!!!!
The following are true of DDAVP or desmopressin except
D. it helps to stimulate the urinary bladder to produce more urine.

C. it is administered by injection

A. it is a form of vasopressin

B. it is used to take the place of ADH

Answers

Answer:

i think its B

Explanation:

Explain the carbon circle in 5 sentences

Answers

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Answer:Carbon moves from the atmosphere to plants.

Carbon moves from plants to animals.

Carbon moves from plants and animals to soils.

Carbon moves from living things to the atmosphere.

Carbon moves from fossil fuels to the atmosphere when fuels are burned.

Carbon moves from the atmosphere to the oceans.

Explain what is wrong with the cells shown in the image below.

Answers

Answer:

wrong answer

Explanation:

it doesn't show any thing that why its wrong

what is the natural rate of nitrogen fixation in earth’s ecosystems?

Answers

Answer:

A reasonable upper bound for the rate of natural nitrogen fixation on land is thus about 140 Tg of N per year.

How many chromosomes will be in a fertilized egg if the sperm has a monosomy disjunction error?

Answers

Answer:

About half of all girls with Turner syndrome have a monosomy disorder. Monosomy means that a person is missing one chromosome in the pair. Instead of 46 chromosomes, the person has only 45 chromosomes.

Explanation:

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