1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Rashid [163]
3 years ago
12

What is meant by the following statement? The cell membrane is semipermeable. A. The membrane allows all polar molecules into th

e cell. B. The membrane is very specific about what it allows to pass through. C. The membrane does not contain any membrane proteins. D. The membrane will not allow any molecules to pass through.
Biology
1 answer:
Gennadij [26K]3 years ago
7 0

I believe the correct answer would be B.  Semipermeable means that it allows certain substances to pass through, and certain other ones to not pass through.  So given all of your options, I would say that B makes the most sense.  Hope this helped!

-TTL

You might be interested in
Some pathogenic bacteria in food can survive the stomach and small intestine, reaching the large intestine. there, they attack t
alexandr402 [8]

The correct answer is diarrhea.

Diarrhea refers to an enhancement in the intensity of bowel movements, an upsurge in the looseness of stool. It is caused due to increased discharge of fluid into the intestine, rapid passage of stool via the intestine, or diminished absorption of fluid from the intestine.

The common bacterial causes of diarrhea include Salmonella, Campylobacter, E.coli, and Shigella.

4 0
4 years ago
Read 2 more answers
How do energetic considerations affect the structure of populations? communities? ecosystems?
alexandr402 [8]
<span>10% rule (efficiency between trophic levels): limits how long an ecosystem's food chain can be
Predator/prey cost benefit analysis (i.e. foraging) -- cost is risk of being eaten or killed along the way, benefit is energy/nourishment obtained: limits distribution of predator v. prey
Immigration/Emigration with other populations and ecosystems
Island biogeography: size of land and distance from another population/ecosystem (mainland): limits population size and variability on island</span>
3 0
3 years ago
Place the rock layers in order from oldest to youngest in the blanks below. Type the letters as they
yarga [219]

Answer:

C

Explanation:

The principle of superposition states that the oldest sedimentary rock units are at the bottom, and the youngest are at the top. Based on this, layer C is oldest, followed by B and A. So the full sequence of events is as follows: Layer C formed.

3 0
3 years ago
True or False Questions: 1. When a cell is put into an isotonic solution, individual water molecules cannot move back and forth
lord [1]
1.) It is True that when a cell is put into an isotonic solution, individual water molecules cannot move back and forth across the cell membrane. 
2) It is False that a when a cell is put into a hypertonic solution, there is a net movement of water molecules across the cell membrane into the cell. 
3) It is True that when a cell is out into a hypotonic solution, there is net movement.
4) It is False that the movement of any solvent across a semi-permeable membrane is called osmosis.

5 0
3 years ago
All of the following are positive aspects of PACs EXCEPT?
muminat
I think the answer is C 
6 0
3 years ago
Read 2 more answers
Other questions:
  • Which compound was abundant in Precambrian Earth’s oceans, before complex life evolved on Earth?
    8·2 answers
  • A geographic information system (GIS) helps scientists visualize, analyze, and interpret data about locations on Earth. Which st
    14·1 answer
  • The process of active transport requires the most use of
    8·2 answers
  • Last several months for recent medical products produced with the help of genetic engineering?
    14·1 answer
  • What effect do you think the angularity of rock chips has on the rate of weathering? Help asap.
    10·1 answer
  • Why does the term "somatic nuclear transfer" make sense for the process of cloning described in this lesson?
    7·1 answer
  • Why is hypertension, or high blood pressure, a serious health risk?
    7·1 answer
  • What is the term for the absolute worst type of inflation, where prices skyrocket out of control and a nation's economy becomes
    11·1 answer
  • _____ is a bad conductor of heat and electricity​
    9·2 answers
  • Respira
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!