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

a. Find out reasons for similarity and dissimilarity
b. Which types of reproduction are followed in sugar cane plant and in mango tree?

Answers

Sugar cane plant reproduce asexually whereas mango can reproduce by both asexually and sexually.

Sugar cane is usually reproduce by using asexual reproduction i.e. by the use of pieces of stem of sugar cane called setts that contain at least one node. It is necessary that these cuttings contain a node because when they are placed and covered in the ground, primary roots arise from these nodes.

While on the other hand, the mango trees can be propagated both by sexual and asexual reproduction. Sexual reproduction involves the fusion of male and female sex cells during flowering stage. Grafting, Cutting, Layering and Budding are the asexual means for the propagation of mango tree.

Among these the grafting technique is considered as the most suitable method of vegetative propagation of mango so we can conclude that sugar cane plant reproduce asexually whereas mango can reproduce by both asexually and sexually.

Learn more about reproduction here: https://brainly.com/question/12176249

Learn more: https://brainly.com/question/26022841

What term best describe the role of carbon dioxide in the human body

Answers

Answer:

Carbon dioxide is essential for internal respiration in a human body. Internal respiration is a process, by which oxygen is transported to body tissues and carbon dioxide is carried away from them. Carbon dioxide is a guardian of the pH of the blood, which is essential for survival.

Explanation:

three benefits attributed to all psychotherapies are:

Answers

Answer:

hope for demoralized people, new perspective, and a healthy relations

a veggie garden is 2 meters long by seven meters wide. it is home to 168 mice. what is the population density of the mice?

Answers

the area of the vegetable garden is:
12*7=84 meters

168/84= 2

There is 2 mice per meter in the vegetable garden.

What is mineralization

Answers

Answer:

Mineralization is the process by which chemicals present in organic matter are decomposed or oxidized into easily available forms to plants.

What is the key to natural selection

Successful reproduction a
Inherited traits b
Genetic mutations c
Genetic vartiations d


Someone pls help me with this

Answers

Inherited traits

Reason they get use to their environment

Which best describes chromosomal dilatation

Answers

Answer:Changes that affect the structure of chromosomes can cause problems with growth, development, and function of the body's systems. These changes can affect many genes along the chromosome and disrupt the proteins made from those genes.

Structural changes can occur during the formation of egg or sperm cells, in early fetal development, or in any cell after birth. Pieces of DNA can be rearranged within one chromosome or transferred between two or more chromosomes. The effects of structural changes depend on their size and location, whether gene function is interrupted, and whether any genetic material is gained or lost. Some changes cause health problems, while others may have no effect on a person's health.

Explanation: took the test

Which group shown in this figure contains the highest biodiversity

Answers

Answer:

insects

I think

hope this helps and I am not sure

The ducts or tubes responsible for receiving the ovulated oocyte and providing the site for fertilization are the ________.

Answers

The Fallopian tubes (of uterine)

Which nucleic acid carries genetic information from the cell nucleus to the
ribosomes?
*
DNA
messenger RNA
transfer RNA

Answers

the kidneys filter blood

messenger RNA (mRNA)
messenger RNA (mRNA), molecule in cells that carries codes from the DNA in the nucleus to the sites of protein synthesis in the cytoplasm (the ribosomes).

Please explain, why do we age?

Answers

Answer:

According to this theory, aging occurs through small and random damaging events in a cell that add up over time. These damaging events may come from our own metabolism, as the basic mechanism of metabolism sometimes causes damage to molecules within our cells.

Answer:

according to this theory, aging is caused by changes in hormones.

Explanation:

hormones are which are produced by the endocrine system.

people who don't believe humans are causing global warming argue it might be caused by...

Answers

Earths own loop cycle is some arguments I’ve heard.

What is the difference between emphysema and asthma?
Emphysema is an inflammation of the lungs, while asthma is a bacterial infection of the lungs.
Emphysema is the gradual destruction of the alveoli, while asthma is a sensitivity to irritants that causes the airway to constrict.
Emphysema is a sensitivity to irritants that causes the airway to constrict, while asthma is the gradual destruction of the alveoli.
Emphysema is a bacterial infection of the lungs, while asthma is an inflammation of the lungs.

Answers

Answer:

Asthma and COPD are both chronic lung diseases. COPD is mainly due to damage caused by smoking, while asthma is due to an inflammatory reaction. COPD is a progressive disease, while allergic reactions of asthma can be reversible.With asthma, the swelling is often triggered by something you're allergic to, like pollen or mold, or by physical activity. COPD is the name given to a group of lung diseases that include emphysema and chronic bronchitis. Emphysema happens when the tiny sacs in your lungs (called alveoli) are damaged.

Explanation:

MARK ME AS A BRAINLIST PLZ

Answer:

I think the person above was trying to say the correct answer was

B. Emphysema is the gradual destruction of the alveoli, while asthma is a sensitivity to irritants that causes the airway to constrict.

If your gonna answer a brainly question don't make it complicated, respectfully, we have no time for that with these quizzes. And we more appriciate just straight to the point.

Why is farming good for the society? (Economic growth related) please give me scientific questions, I will mark you as brainly. Thank you

Answers

Answer:

Agriculture gave people the opportunity to create civilizations, fight hunger and work to combat challenges in population growth and climate change.

Explanation:

Another positive development in farming is the rapid expansion of farmers markets. Farmers markets allow small farmers to interact directly with consumers. The food system remains within the local economy by being locally produced and eliminates the need for long-distance transportation. The opportunity to purchase locally grown food proves invaluable as the demand for it rises.

What causes black holes to form?

Answers

Most black holes form from the remnants of a large star that dies in a supernova explosion. (Smaller stars become dense neutron stars, which are not massive enough to trap light.) ... When the surface reaches the event horizon, time stands still, and the star can collapse no more - it is a frozen collapsing object.

help anyone i will mark you brainliest so pls...

Answers

Answer:

Purpose of ecosystems

Explanation:

What is the difference between a population and a community?

Multiple choice question.
cross out

A)
A population is made up of all species in an area. A community is made up only of one species.

cross out

B)
A population is made up of only one species. A community is made up of all species in an area.

cross out

C)
A population is made up of all the species and nonliving things in an area. A community is made up of all species in an area.

cross out

D)
The words mean the same thing.

Answers

A because it explains the differences

PLEASE HELP!! MULTIPLE CHOICE

Answers

genes control traits so when a gene is changed the trait changes

A

The answer should be A and C

Which of the following facts is the best example of molecular DNA evidence that
supports the Theory of Evolution?
A. Humans and chimpanzees share between 95% and 98.5% of their DNA.
B. The embryos of humans and chickens share similar features early in development.
C. Humans, penguins, alligators, and bats all share forelimbs with homologous structures.
D. In the fossil record, plants are found below reptile fossils. Im guessing that its A

Answers

Answer: A I think.

Explanation:

Cuz M O N K E S Are just like humans!

I think the answer is A since human beings evolved from an ape

Food Allergies ___________.
A. only impact Highly Susceptible Populations.
B. are very uncommon.
C. are serious and can be fatal.
D. are a cause of foodborne illness.

Answers

[tex] \: \: \: \: \: \: [/tex]

C. are serious and can be fatal.

hope it helps

#carryonlearning

Answer: are serious and can be fatal

renewable energy makes up approximately how much of the total u.s. energy budget?

Answers

Answer:9.2 quadrillion BTU

Explanation:

Which organisms "invented" (were the first to use) fermentation?

a
fungi
b
plants
c
bacteria
d
animals

Answers

Answer:

bacteria

Explanation:

because they are the one that still been in use

1. What happens to the rubber band when you pulled? a. The rubber band stretches c. Nothing happens to the rubber band. b. The rubber band suddenly cut out. D. all of the above 2. Using this model identify the type of fault. a. Strike-slip fault. b. Normal Fault c. Reveres Fault d. all of the above 3. This is the location on the surface of the Earth directly above the focus. a. Focus b. Fault c. Epicenter d. All of the above 4. It is where the earthquake starts. a. Focus b. Fault c. Epicenter d. All of the above 5. Which of the following is not related to earthquake? A. Ground shaking B. Fault C. After shocks D. Typhoon 6. Which of the following are safer place during an earthquake? A. Inside the house B. Outside in an open area C. Inside the car D. Under a tre Items 7-10 refer to the diagram below. C B GA​

Answers

Answer:

d

Explanation:

what was the name of the first successfully cloned mammal?

Answers

Dolly the sheep was the first

Answer:

Dolly the sheep

Explanation:

I hope I could help :D

When planning an investigation, the _______ are the steps you take to complete an investigation.

Answers

Answer:

When planning an investigation, the scientific method are the steps you take to complete an investigation.

Explanation:

Imagine that you took a small population of A. cooki lizards and moved them to a new island that was heavily forested. Predict what would happen over time to the color of the dewlap in that population of lizards. Using your knowledge of natural selection and genetics, explain your prediction.

Answers

It would change to a bright pink because of sun and trees and water

A mixture that has the same composition throughout is called a(n)

Answers

Answer:

Homogeneous Mixture

Explanation:

They are mixed

Which parts of a plant or animal contain the genetic information for characteristics like this?

Answers

All plants and animals are made up of cells where the genetic material can be found in the form of genes and chromosomes (usually in the nucleus).

Which definition is the best for “semipermeable membrane”?
It is a barrier that prevents materials from moving from one side to the other.
It is a barrier that allows materials to move freely from one side to the other.
It is a barrier with tiny openings that let some, but not all, materials pass through.
It is a barrier that helps materials move from one side to the other.

Answers

Answer:

C

Explanation:

Semi means partly

permeable means allowing liquids or gases to pass through it

Semipermeable means allowing some, but not all, liquids or gases to pass through it.

Answer:

c) It is a barrier with tiny openings that let some, but not all, materials pass through.

Explanation:

The prefix "semi-" means "some; partially". "Permeable" means "allow to pass through". Using your knowledge of the purpose of the membrane and the meaning of the word "semi-permeable", you would use context to come to the conclusion that the correct answer is c) It is a barrier with tiny openings that let some, but not all, materials pass through.

in which part of cell are calcium ions usually found?

Answers

Answer:

The endoplasmic reticulum

Explanation:

becuase im smart

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