A cell membrane is called _____________ because it allows only certain substances to enter and leave the cell *

a. exocytosis
b. endocytosis
c. semipermeable
d. diffusion

Answers

Answer 1
The answers is semi permeable hope this helps

Related Questions

Which of the following areas of science would
allow someone to obtain a job for NASA?
A. Physical Science
B. Life Science
C. Social Science
D. Medical Science

Answers

I think it’s D i think
i believe it would either be , d or b

A body cell has been growing and synthesizing proteins. In the nucleus of this body cell, DNA replication is taking place, and a copy of the cell's genetic material is copied. Which of the following is the best conclusion you can make about the life cycle of this cell?

Answers

The best conclusion you can make about the life cycle of this cell is that the cell is in the S phase of interphase and will move next to the G2 phase.

S phase (Synthesis Phase) is the phase of the cell cycle in which all of the chromosomes (DNA) are replicated within the nucleus. During this phase, the DNA is effectively doubled as each chromosome contains two sister chromatids. After the S phase, the cell enters the G2 phase where various proteins (such as microtubules) are synthesized.

When air has reached its dew point

A) Air has to be cold
B)Air can hold more water
C)Air is saturated
D)Air has low humidity

Answers

Answer:

When air has reached the dew-point temperature at a particular pressure, the water vapor in the air is in equilibrium with liquid water, meaning water vapor is condensing at the same rate at which liquid water is evaporating.....

Alejandro wants to find the speed of his car in meters per second. His car traveled 50 cm. It took 5 seconds to travel 50 cm. How fast did his car go?

Answers

Answer:

0.1m/s

Explanation:

Speed can be calculated using the formula;

Speed (m/s) = distance (m) ÷ time (s)

According to the information provided in this question, Alejandro's car travels 50cm in 5seconds i.e. the distance traveled is 50cm and the time is 5s.

However, the question requires the distance to be in metres (m). We, therefore, need to convert 50cm to m by dividing by 100.

100cm = 1m

50cm = 50/100

= 0.5metres.

Speed = 0.5/5

Speed = 0.1m/s.

The car travels as fast as 0.1m/s.

Plz help me its only 1 question

Answers

Answer:

the first one

Explanation:

the car slowly started and accelerated

Its the second one. Since its continually accelerating.

Which of the following polypeptides is coded for by the mRNA sequence AUGGUUAAACGACAAUCC ? a Val, Lys, Phe, Gly, Ser b Met, Asp, Phe, Ala, Arg c Met, Val, Lys, Arg, Gln, Ser d Ile, Gln, Lys, Asp, Gly, Leu, Ser

Answers

Answer:

i think the answer is C

Explanation:

AUG = met

GUU= val

AAA= lys

CGA= arg

(ect.)

The polypeptide that is encoded by this specific mRNA sequence is likely Met-Val-Lys-Arg-Gln-Ser (option C).

What is translation?

The translation is a cellular process by which a specific mRNA chain is used to create a polypeptide chain.

The linear order of nucleotides in the mRNA chain specifies the amino acids that will be added to the polypeptide.

In conclusion, the polypeptide that is encoded by this mRNA sequence is Met-Val-Lys-Arg-Gln-Ser (option C).

Learn more on translation here:

https://brainly.com/question/510682

#SPJ2

2) A person with hardened arteries will
a) have great blood flow
c)have low elasticity in their blood vessels
b) have a normal blood pressure
d) be a low risk for a heart attack since their blood vessels are strong

Answers

Answer:

B!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Explanation:

Which statement is true about gold and helium?
O A. They both occur as a gas at room temperature.
B. They are both made of subatomic particles.
c. They are both used in balloons.
D. One of made of protons and the other of only electrons.

Answers

Answer:

The answer is B

Explanation:

How are fly eyes and mouse eyes different? Similar?

Answers

Answer:

Fly eyes and mouse eyes look very different and have different structures. However, both types of eyes have the same function. They sense light and make vision possible. ... If the Pax6 gene coded for parts of the actual eye, then the fly would develop mouse eyes in addition to normal fly eyes when the gene was inserted.

Explanation:

Bcz Instead they loke same but if you see the flying eyes and see the mouse eyes the flying eyes conrain fax si that they look different..

Ope it helps

Why are there more producers than nutrients? (In an ecosystem, more specifically, regarding trophic levels.)

Answers

Explanation:

any step in a nutritive series, or food chain, of an ecosystem dead organisms and waste materials into nutrients usable by the producers

What is the function of Primase?

Answers

Answer:

Explanation:

"Primase is an enzyme that synthesizes RNA sequences called primers.  primase produces RNA molecules, the enzyme is a type of RNA polymerase."

Hope this helps :)


Which is not a likely economic tool to address environmental issues?
Emissions fees and taxes

Responsibility for a product from production to disposal

Small business liability relief

Defunding government regulation

Answers

Explanation:

Policy-makers have two broad types of instruments available for changing consumption and production habits in society. They can use traditional regulatory approaches (sometimes referred to as command-and-control approaches) that set specific standards across polluters, or they can use economic incentive or market-based policies that rely on market forces to correct for producer and consumer behavior. Incentives are extensively discussed in several EPA reports

Two basic types of traditional regulatory approaches exist. The first, a technology or design standard, mandates specific control technologies or production processes that polluters must use to meet an emissions standard. The second, a performance-based standard, also requires that polluters meet an emissions standard, but allows the polluters to choose any available method to meet that standard. Performance-based standards that are technology-based, for example, do not specify a particular technology, but rather consider what available and affordable technologies can achieve when establishing a limit on emissions. At times, EPA may completely ban or phase out the use or production of a particular product or pollutant, as it has done with chlorofluorocarbons (CFCs) and certain pesticides. Regulations can be uniform or can vary according to size of the polluting entity, production processes, or similar factors. Regulations are often tailored in this manner so that similar regulated entities are treated equally. MARK AS BRAINLIEST IF IT HELPS

Sodium chloride can most likely be used successfully to melt ice in which
Canadian city?
A. Regina
B. Winnipeg
C. Toronto
D. Fort McMurray

Answers

Answer is C. Toronto

what is the cause and effect of stop codone mutation?

Answers

Answer:

Nonsense mutations occur when a premature nonsense or stop codon is introduced in the DNA sequence. When the mutated sequence is translated into a protein, the resulting protein is incomplete and shorter than normal. Consequently, most nonsense mutations result in nonfunctional proteins.

Hope this helped! :)

Which of the following resources are a reason for competition? Select ALL correct answers.

mates for reproduction
prey for food
space to live
shelter from predators
light for energy

Answers

Answer:

all of these things can be and in fact are reasons for competition

Answer:

Explanation:

True or false: recycling can positively impact Earth's spheres.

Answers

Answer:

true

Explanation:

Answer:

True

Explanation:

Recycling provides big benefits to the planet's atmosphere by reducing overall materials consumption. ... The more we recycle, the more we reduce the impacts of global warming on the earth's climate. Animal Safety. Ocean-dwelling animals are threatened by the large amounts of plastic trash dumped into the seas every year.

Question 11 (1 point)
What does this diagram represent?

Answers

A picture of someone’s Dna

PLSPLSPLS HELP ASAP



a scientist discovers that the acidity of a lake increases overtime. at the same time, its population of Minnows grew smaller. when the adicity of the lake return to normal, The Minnow population recover.

In what two ways can the minnow population be used to monitor the Lakes water quality?

Answers

Answer:

In the above case we can understand that,

If the pH of the water increases the population of Minnows decreases.Minnows population can be determined by the acidity of the lake water.Minnows cannot survive in basic water.

Answer:  The answer is "It can be used to identify possible pH changes." and "It can be used as a bioindicator."

Explanation:

I got it right.

How long ago was our solar system born from its stellar nebula?

Answers

Answer:

Approximately 4.6 billion years ago

Explanation:

I WILL GIVE BRAINLIEST
Use the image to answer the question.

The image shows a food chain. An arrow points from grass to a grasshopper. An arrow points from the grasshopper to a lizard. An arrow points from the lizard to a hawk. An arrow points from the hawk to a fox.

What would happen if the number of grasshoppers in this food chain decreased?

A.
The amount of grass would increase.

B.
The number of lizards would increase.

C.
The amount of grass would decrease.

D.
The number of hawks would increase.

Answers

Answer:

a, the amount of grass would increase

Explanation:

if the grasshopper is the one in this diagram eating the grass, and suddenly there were fewer grasshoppers to do that, the grass would increase because more of it can grow without being eaten

what is the next number of the sequence?

0.99, 9.9, 99, 990, ____

Answers

I believe the next number is 9900

Reason: To get the next number in the sequence, move the decimal point

0.99 —> 9.9

9.9 —> 99.

99. —> 990.

990. —> 9900.

Sorry if wrong

Which pair of waves could overlap to produce a wave with a higher amplitude through interference?​

Answers

Answer:

D: Two waves of the same amplitude with crests that are perfectly aligned

Explanation:

A P E X

what is meant my urbanization and industrialization? How they degrade the environment ​

Answers

Urbanization is defined as “the process of making an area more urban” or an increase in the amount of people living in towns or cities. Industrialization is defined as “the development of industries in a country or region on a wide scale” meaning a strong military with modern weapons, factories to create things, modern cars and boats etc. Urbanization and industrialization put a strain on the environment because of carbon gases emitted, effectively warming the earth up, destruction of trees which lowers our overall oxygen available, destruction of animal homes which will kill animals or cause unwanted interactions between humans and animals, and the pollution of natural resources such as local ponds, streams or the ocean.

Sarah was testing paper towels to see which brand was the strongest. She used five brands of towels in her experiment. She wet the towels and then used them to hold beans. She counted the number of beans the wet paper towels could hold without tearing. When the experiment was completed, Sarah compared the towel strength using a bar graph. What was her label on the X-axis?

Answers

Answer:

I think it is 6 I think maybe

Answer: Explanation:

on the x-axis is the paper towels. (1, 2, 3, 4, 5)

y-axis will be the beans, seeing how much it held on those 5 towels.

first section of the digestive sistem​

Answers

Answer: Mouth

Explanation:

Answer:

Mouth

Explanation:

The mouth is the beginning of the digestive tract. In fact, digestion starts here as soon as you take the first bite of a meal. Chewing breaks the food into pieces that are more easily digested, while saliva mixes with food to begin the process of breaking it down into a form your body can absorb and use

:-) :-) :-) :-) :-) :-) :-) :-) :-)
Please help

Answers

Answer:

i cant read this pls change the lebgth of the problem :/

Answer:

Column 2 and Column 3

Explanation:

give two examples of asexual Productions​

Answers

Answer:

Asexual Reproduction Examples

Blackworms or mudworms reproduce through fragmentation. Hydras reproduce through budding. Organisms such as copperheads undergo parthenogenesis. Sugarcane can be grown through v

Explain the idea of "survival of the fittest" with regards to a population of beavers in a lake in which some have large incisor teeth and others have small incisor teeth.

Answers

If the beavers need large teeth to collect wood for their dams, the population of beavers with larger teeth will live longer because they can collect wood. They will them be able to reproduce therefore passing down the gene with larger incisor teeth

The study of gradual change is called evolution.

The correct answer is mentioned below.

What is evolution?Evolution is a change in the heritable characteristics of biological populations over successive generations. These characteristics are the expressions of genes that are passed on from parent to offspring during reproduction.

According to the question,

If the beavers need large teeth to collect wood for their dams, the population of beavers with larger teeth will live longer because they can collect wood. They will then be able to reproduce therefore passing down the gene with larger incisor teeth.

For more information about the genes, refer to the link:-

https://brainly.com/question/14688752

In mice brown fur (B) is dominant to white fur (b). Two brown mice mate. Their genotype in unknown. You observe the offspring and notice 5 are brown and 2 are white. Given this information, you determine both parent genotypes must be:
a. BB
b. Bb
c. bb
d. a reliable conclusion can't be reached

Answers

Answer:

bb bc there more alike

but i am not so sure

When the dry and wet bulb temperatures are far apart. the humidity is high.
True
False

Answers

the answer is false purrr
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