Why do materials move across a membrane?

Answers

Answer 1

Answer:

they passively move from an area of high concentration to low concentration and also by active transport  

Explanation:

Answer 2

Answer:

Explanation:

Mass has a tendency to spread equally throughout available space. This is called diffusion


Related Questions

what do you think will happen if u certain part of the cell fails to function​

Answers

Answer:

If that happens, you body will die soon

Explanation:

PLEASE HELP ASAP!!!!!
This process results in
a. the reduction in the
number of alleles.

b. an increase in the number of chromosomes.

c. the division of the cell.

d.an increase in genetic
variation.

Answers

D. Is the. Right answer

During asexual reproduction in paramecia, a single paramecium becomes two new
paramecia. The genetic material of the new paramecia is usually -
F identical to the original
G half the amount of the original
H
double the amount of the original
J
similar to the original

Answers

Answer:

he is right

Explanation:

Due to genetic recombination, it causes genetic heterogeneity in the progeny individuals. Genetic diversity can hasten evolution and boost an organism's capacity for environmental adaptation. Thus, option D is correct.

What benefit of the asexual reproduction in paramecium?

Asexual reproduction has the benefit of allowing populations to grow quickly in favorable environments. Just one parent is required. Since a partner is not required, it is more time and energy efficient.

Because the bacteria that paramecia consume are frequently found on decomposing plants, they play a part in the carbon cycle. In addition to eating the bacteria,

Paramecium will also consume decaying plant debris, speeding up the process of decomposition. In research, paramecia can serve as model organisms.

Therefore, The genetic material of the new paramecia is usually similar to the original.

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How does exercise build muscles?

Answers

Answer:

Exercise builds and strengthens muscles, which can protect the bones from injury, and support and protect joints affected by arthritis. Strong muscles also give stability and improve balance and coordination. Exercise also improves blood supply to the muscles and increases their capacity to use oxygen

Hope this helped!

I need help. Thanks!

Answers

Answer:

They bounce around and take form of the container

Explanation:

In Labrador retrievers, black coat color is dominant to brown. Suppose that a black Lab is mated with a brown one and the offspring are eight black puppies. What is the most likely genotype of the black parent

Answers

Dominant because dominant genotypes overcome recessive genotypes

The genotype of the parents of black puppies are dominant. The two parents can be homozygous (BB) or heterozygous (Bb) dominant.

What is Genotype?

The genotype of an organism refers to the complete set of genetic material in an organism. Genotype can also be used to refer to all the alleles or variants an individual carries in a particular gene or genetic location in the DNA.

In labrador dogs, black coat color is dominant over brown coat color. If black labrador is mated with brown labrador and the offspring produced all eight are black colored that is dominant. Then, in this case the genotype of the parents will be:

If all the offspring are black colored, this means that each puppy has at least one dominant allele 'B' in their genotype. So, it can be predicted that both the parents should be at least heterozygous for this character. If both the parents are heterozygous then, some of the offspring can have brown color coat as well. So, the parents should both be homozygous or one homozygous and one heterozygous for this trait.

This can be shown through punnett square.

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what determines retention factor (Rf) ?

Answers

Answer:

Rf valuues and reprroooducibility can be affected by a number of different factors such as layer thickness, moisture on the TLC plate, vessel saturation, temmperature depth of mobile phase, nature of the TLC plate sample size, and solvent parameters. These effects normally cause an increase in Rf values

Explanation:

also sorry for bad typing

HELPPPPPP ASAPPPPPPPP HELPPPP

Answers

Little to no agitation I’m pretty sure

Answer:

it is C. Little to No agintation

PLEASE HELP ME ITS FOR 17 POINTS!!!!!!!!!!!!!!!!!!!!

A forest area is being used for a new housing development. Most of the trees have been removed to make room for the
new houses. Predict the impact that this will have on the birds in the area.
The bird populations will stay the same because humans love birds.
The bird populations will decrease because humans see them as pests.
© The bird populations will increase because humans do not interfere with wild animals.
The bird populations will decrease due to competition for resources such as food and nesting sites.

Answers

Answer:

The bird populations will decrease due to competition for resources such as food and nesting sites.

Explanation:

Their food and habit is being taken away so they will have to compete. I hope this helps you! :)

Possible Brainliest? You don't have to if you don't want to!

HI AM IN THE COMULATIVE EXAM!!!!! Which statement describes earthquakes?

Answers

Answer:

seismic energy I think if I get it wrong I'm sosososososo sorry have a good exam!

Which of the following layers in Earth have the highest density?

O outer core
O asthenosphere
O lithosphere
O lower mantle

Answers

a asthenosphere

Explanation:

It has the highest density

Carbon dioxide is colorless, odorless gas. Why is it considered a pollutant?

Answers

Explanation:

carbon dioxide is a colorless odorless gas formed when substances contain carbon such as Federal gas coal and wood are burned with insufficient supply of air

Answer:

it can be harm full to humans I think and it is not in the chemical compound for air

Explanation:

the EPA stressed that it considers CO2 and other so-called greenhouse gases to be pollutants because of their role in propagating climate change, not because of any direct health effects. But despite continued pressure from environmental groups, the administration never moved to regulate the gases.

1. A solution has 65% water. A Cell has 65% solute. Which way does the water
move: into or out of the cell, or no net movement?
2. Is the solution from question 1 hyper- hypo- or isotonic compared to the cell?
3. Will the cell shrink, swell, or stay the same?

Answers

Answer:

the water will enter into the cellthe solution is isotonic
i think the answers is

a ) the water will move into the cell

b ) the solution is more hypotonic rather than the cell . thus the water will enter the cell.

c ) the cell will swell because water enters the cell.

i am sorry if my answers were wrong .

What is not part of Cell Theory?
A. All cells have a nucleus
B. Cells only come from other cells
C. Cells are the basic unit of all living organisms
D. None of the above

Answers

Answer:

D None of the above.Thats your correct Answer

How does the reduction in activation energy by an enzyme affect a chemical reaction?

Answers

Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.

The reduction in activation energy by an enzyme affects a chemical reaction by increasing the rate of the given chemical reaction.

What is Activation energy?

Activation energy may be defined as the minimum amount of energy that is generally needed by the atoms and molecules of reactants in order to undergo a chemical transformation and form products. Activation energy is generally represented by an Arrhenius equation:

k = Ae[tex]\frac{-Ea}{RT}[/tex].

Enzymes may be defined as biocatalysts that perform the important function of increasing the rate of a chemical reaction without being consumed in the process. It may be thought that all cellular reactions and processes are mediated by enzymes.

This is accomplished by lowering the activation of energy of the reaction. As a result of this, the rate of a chemical reaction may be increased.

Therefore, the reduction in activation energy by an enzyme affects a chemical reaction by increasing the rate of the given chemical reaction.

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Which of the following is a reason why teeth are important to help identify
individuals?
01) Teeth are unique to each individual.
02) Teeth are a source of DNA.
O3 Teeth develop in all humans in a similar manner which can help determine an
O4) All of the answer choices are correct.
age range.

Answers

Answer:

O4) All of the answer choices are correct.

Explanation:

Everyone that has teeth can be identified if they have a dental record. A forensic dentist can see what diet the person had, did they smoke, the age, the sex of the person and they are a source of DNA. We can examine the bite mark of the person in question and find out who they are. So teeth are very useful even when everything else on the remains is very badly damaged.

Which statement best describes how a B-cell works?

Answers

Answer:

It produces antibodies, which stimulate a fever

Explanation:

B-cells are also known as B-lymphocytes.

Chronic lymphocytic leukemia (CLL or CLL) is a malignant disease of the blood in which lymphocytes, which belong to the white bloodline, grow uncontrollably, thrive, and form their own clones. It is the most common type of leukemia in adults. There are two types: B cell, which is much more common, and T cell, which is rarer.

Answer:

It Produces antibodies, which stimulate a fever

Explanation:

got 100%

LMK IF I GOT THIS RIGHT PLEASE ILL GIVE BRAINLIEST

Answers

Answer:

The answer is "Third choice".

Explanation:

The cellular breath is a combination of microbial reactions that occur within organism cells that cycle compounds into another waste material from oxidative phosphorylation through the transition to hydrogen gas through oxygen or nutritional metabolites. It is the mixes oxygen with fatty acids through animals deflects hydrogen gas to existence activities, like waste material, water, and carbon dioxide.

what product is left over after photosynthesis

Answers

Answer:

glucose/sugar

Explanation:

Hope this helps!

Answer:

Im pretty sure the oxygen is released from leaves while the energy contained within glucose molecules

Explanation:

And explain your answer why u choose it

Answers

Answer:

meiosis i think

Explanation:

there are chromosomes, so therefore it couldn't be mitosis, because it occurs in plant cells, it splits into four separate sex cells, so it is meiosis.  it couldn't be fertilization because the egg hasn't turned into a zygote, or fertilized egg, and it couldn't be budding because budding only needs one parent, and the diagram shows two, so it must be meiosis.

I don’t really know the answer to this question
Please help

Answers

Answer:

B: The Engine

Explanation:

I choose that because it has the most energy throughout  the train

Answer:

c engine

Explanation:

Jean-Paul is racing in the Tour de France bicycle race is moving along rapidly at a speed of 15 km per hour is suddenly a strong wind begins to blow into a space walk not expect any more Forest on the pedals what will happen to Jean-Paul speed while the wind continues to blow against him​

Answers

Answer: im a cat boy senpai

Explanation: meow ^^

he will slow down i think !

True or false : the pelvic girdle is larger and wider in make animals versus female animals?

Answers

False the pelvic gridle is smaller in male animals

Crossbred plants are called hybrids.
What fruit was produced by crossbreeding citrons and bitter oranges?

Answers

Answer:

I think it was Lemons.

Explanation:

Sorry if its wrong.

Information about Plate Tectonics and the 3
types of boundaries
PLS HELP!!!! Its due today at 5:00 :-(!!

Answers

Answer:

there are three of them, convergent, divergent, and transform

Explanation:

Convergent: where two plates are moving towards each other

Divergent:Where two plates are moving AWAY from each other

Transform:Where two plates SLIDE past each other

Answer:

There are three kinds of plate tectonic boundaries: divergent, convergent, and transform plate boundaries. This image shows the three main types of plate boundaries: divergent, convergent, and transform

Explanation: my brain is bigger than jimmy neutron

The mass of a proton?

Answers

☁️My Answer☁️:

The mass of the proton is the sum of the mass of current quarks and the binding gluons. The mass of the proton is-

⬇️

Proton mass mp = 1.672621898(21)×10−27 Kg

The Mass of proton is higher than the mass of electron.

☼Mass Of Proton In Other Units☼:

The mass of the proton can be expressed in alternative units like – proton mass AMU, the mass of the proton in kg, proton mass MeV. The table given below comprises the value of proton mass and corresponding units.

✯Proton mass✯:                             ∞Value:

Mass of the proton in kg                  1.672621898(21)×10−27 kg

Mass of the proton in grams            1.672621898(21)×10−24 g      

Mass of proton in AMU                    1.007276466879(91) u

                                               

Proton mass MeV                           938.2720813(58) MeV/c2

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I hope this helped you,

And I do hope you enjoy the rest of your day!  (ɔ◔◡◔)ɔ ♥          

-Kirby ★ ツ ✌                

What causes surface currents to move? Do you think surface currents have an effect on deep ocean currents?

Answers

Answer:- Surface is primarily driven by wind (friction from wind transfers energy and momentum to surface water)

- Deep is slower, driven primarily by density (salinity and temperature) differences

- Thermocline: dramatic temp drop 50 m from surface bc sun can't shine

- Halocline: dramatic gradient in saline, increase as it deepens

- Pycnocline: resulting change in density (50-1000)

Explanation:

This stage of cellular respiration requires the presence of oxygen.
A. anaerobic respiration
B. glycolysis
C. fermentation
D. aerobic respiration

Answers

Answer:

Aerobic Respiration

Explanation:

Aerobic (in the presence of oxygen)

Anaerobic (absence of oxygen)

Glycolysis (central pathway for glucose{sugar} metabolism)

Fermentation (chemical breakdown of a substance by bacteria, yeast or other microorganisms and the escape of gases and heat)

T the answer would have to be A

Explain the path food takes from your plate to becoming waste.

Answers

The digestive system plays an important role in the absorption of nutrients into the body. It takes the food we ingest, breaks it down mechanically and chemically in the mouth and stomach. It then absorbs nutrients, fats, proteins and water in the intestines before eliminating the waste through the rectum.

What is a coral reef made of?
A. Grass
B. Dead animals
C. Volcanic rocks
D. Sand

Answers

The answer is B. Dead animals

Answer: B. Dead animals

Explanation:

Coral reefs are made with calcium. How do they get this calcium? From the skeletons of various organisms in the ocean.

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