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
Nastasia [14]
3 years ago
8

He cell membrane forms a protective barrier between the external and internal environments. It is referred to as _______________

____, because it allows some substances to cross more easily than others and blocks other substances from crossing into the cell.
Biology
2 answers:
Ray Of Light [21]3 years ago
8 0

Answer:

Selectively permeable

Explanation:

Vsevolod [243]3 years ago
5 0
It is referred to as a selective semipermeable membrane because it only allows certain things through, due to the size and shape of whatever is trying to get through.
You might be interested in
There are three different types of rocks: igneous, metamorphic, and sedimentary. Which type of rock would you expect to find alo
slamgirl [31]

Answer: Igneous

Explanation:

The main type of rock found at divergent plate boundaries is igneous. These rocks are formed when magma cools and becomes solid, either above or below ground. They are rich in elements including silicon, aluminium, sodium, potassium, calcium and iron, and make up about 95 percent of the upper part of the Earth's crust. More than 700 types of igneous rock have been identified.

Most rocks formed at divergent boundaries are categorized as malefic igneous rocks, which are dark-coloured due to their high magnesium and iron content. This category includes basalt, gabbro and peridotites, which are often found at these boundaries.

4 0
3 years ago
Why would a drug that damages capsules help treat a viral infection
ss7ja [257]

Drug that demages capsule is used to treat viral infection because Curing a viral infection  antibiotics are useless against viral infections. This is because viruses are so simple that they use their host cells to perform their activities for them. So antiviral drugs work differently to antibiotics, by interfering with the viral enzymes instead.  

Antiviral drugs are currently only effective against a few viral diseases, such as influenza, herpes, hepatitis B and C and HIV – but research is ongoing. A naturally occurring protein, called interferon (which the body produces to help fight viral infections), can now be produced in the laboratory and is used to treat hepatitis C infections.

4 0
3 years ago
How do ciliates move?
Scilla [17]

Protozoans that Move with Cilia. These protozoans are called Ciliates and have hundreds of tiny cilia which beat in unison to propel them through the water. ... In addition to locomotion, the Paramecium and other ciliates like the Stentor use cilia to sweep food down into their central channel or gullet.

8 0
3 years ago
Name to types of evidence that scientist used to support the theory of evolution?
Sergio [31]
Evidence of evolution. Scientists support the evidence of evolution because of the adaptations organisms used to have in the past compared to the present. For example, humans have organs in their bodies they don't need, but must have been used in ancient times. They can also find that humans have a common ancestor such as monkeys because of the DNA similarities and many adaptations. Hopefully this answered most of your question.
8 0
3 years ago
In an endothermic reaction products are_in potential energy and stable than reactants.
Vika [28.1K]

The enthal difference between the reactants and the products is equal to the amount of energy released to the surroundings. ... A reaction in which energy is absorbed from the surroundings is called an endothermic reaction. In endothermic reactions the enthalpy of the products is greater than the enthalpy of the reactants.

5 0
2 years ago
Other questions:
  • The nuclear envelope disintegrates during _____.
    15·2 answers
  • People who have severed corpus callosum are likely to have difficulty: 1) writing a poem, because the speech area of their brain
    15·1 answer
  • Which process requires water to gain heat energy from the environment?
    7·1 answer
  • The expression 40x2 – 65x + 50 represents the sum of the interior angles of a regular pentagon in degrees. If the interior angle
    11·2 answers
  • Current predictions of rainfall change in the West have indicated that rainfall may decrease by as mucj 40 cm in some areas. Ima
    9·1 answer
  • A wave with a period of 1/3 second has a frequency of
    15·2 answers
  • Help with question 2 and 3 please
    11·1 answer
  • ATP synthase in the inner mitochondrial and chloroplast membranes is a A)nucleic acid B)triglyceride C)phospholipid D)protein E)
    10·1 answer
  • What foods are the Inuit people eating? Why are they eating those foods?
    12·2 answers
  • a botanist hypothesizes that as flowers evolved tubular corollas, their nectar attracted a particular species of long-tongued fl
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!