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
zaharov [31]
3 years ago
14

the movement of matter across a cell membrane against a concentration difference is called active transport and it requires

Biology
1 answer:
Xelga [282]3 years ago
4 0

Answer:

It requires cellular energy to achieve its moment.

You might be interested in
The genes for alpha-goblin and beta- goblin are found _______.
HACTEHA [7]
The answer would be C. On different chromosomes.  I'm sorry I don't have an explanation, except for I just took the test and it said C. was the correct answer.
<span />
4 0
3 years ago
Read 2 more answers
What are some of the functions of proteins in the body
emmasim [6.3K]

Explanation:

The main building material in the body.

They are carriers of vitamins, hormones, fatty acids and other substances.

Provide the normal functioning of the immune system.

Provide the state of the "apparatus of heredity".

They are catalysts of all biochemical metabolic reactions of the body.

3 0
3 years ago
Silica tetrahedra are able to link into long chains that share oxygen ions through the process of ________.
slava [35]
I don't know sorry
.dymnjytxdb ljhg ;yhugvfkufyuuk y  gbe5tbhjnmrfz,mghxdx 

7 0
3 years ago
Fill in the blank Competition drives natural selection as individual members of a species compete with each other for limited na
maks197457 [2]

Answer:

1. Intraspecific

2. speciation

3. fossil record

4. The fossil record provides empirical evidence for evolution because it shows that species now aren't the same as species that existed in the past and that small changes happen over time to create new species.

5. A geographic variation in the fossil record occurs when two similar organisms occupy the same time span in two different places. These organisms hold the same purpose within the overall ecology.

6. A more detailed fossil record is preferable for supporting evolution because it allows for the instances of gradual change to be recorded and placed into broader speciation events.

7. Fossils provide a great many intermediaries that connect past species with their living descendants.

8. Intraspecific competition is competition that occurs within species. This is the competition that drives natural selection.

Explanation:

penn foster

8 0
3 years ago
4.Paramecium is able to move by hairlike structures called<br> ____
Rufina [12.5K]

Answer:

Cilia

Explanation:

           

3 0
3 years ago
Other questions:
  • What are three anatomical features that birds share with their theropod ancestors
    12·1 answer
  • I need 12 -14 please
    8·1 answer
  • Total lunar eclipses always occur
    9·1 answer
  • Of the following, which is the most inclusive level of organization in nature?
    11·1 answer
  • Plants need to perform the processes of photosynthesis and cellular respiration. Label the model to show these processes.
    12·2 answers
  • The allele for the hair pattern called widows peak is dominant over the allele for no widows peak. In a population of 1000 indiv
    10·1 answer
  • The solar system formed from a(n)_________, which is a rotating cloud
    9·1 answer
  • The following is a segment of RNA.
    10·2 answers
  • Answer quickly please
    10·1 answer
  • How would the equilibrium change if the ocean became more acidic?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!