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
yan [13]
3 years ago
12

Help will mark brainliest #7,8

Biology
2 answers:
Svetach [21]3 years ago
8 0

Answer:

7. D

8. D

Explanation:

7. One of the most important functions of iron is the transportation of oxygen to the blood. Iron’s main purpose is to carry oxygen in the hemoglobin of red blood cells throughout your body so your cells can produce energy.

8. A network of tiny capillaries connects the arteries and veins. Though tiny, the capillaries are one of the most important parts of the circulatory system because it’s through them that nutrients and oxygen are delivered to the cells.

TEA [102]3 years ago
3 0
The answers for the question are given below
7.B
8.D
You might be interested in
One of the primary lifestyle risk factors for cancer is
natita [175]
It could be bad habits like Smoking and Alcohol. Others can't be controlled, it could be biological (your grandparents had it, your parents, and now you) . Others could have been prevented, like being Obese, or your just not in healthy shape. 
6 0
3 years ago
In what order do the changes in the succession of an ecosystem occur?
wlad13 [49]

An example of succession is a landslide is produced, then lichens grow, this leads to the accumulation of thin soil, which finally leads to a mature community.

<h3>What is succession?</h3>

Succession is an ecological process associated with the renewal of the ecosystem after a disturbance.

The process of succession is fundamental for reaching the homeostasis (internal equilibrium) of the ecosystem.

The succession may involve the emergence of new species in the ecosystem after disturbance.

Learn more about succession here:

brainly.com/question/1824935

6 0
2 years ago
Joe wants to know if birds prefer to eat in one
bixtya [17]

Answer:

the answer is B, the location of the bird feeders

8 0
3 years ago
PLEASE ANSWER.   E. coli is a species of bacteria that causes many different infections in humans. Certain E. coli strains have
Marizza181 [45]

Answer: The correct answer is-

B.  by mutating their DNA in response to environmental conditions to gain beneficial traits.

Antibiotic resistance in bacteria means the bacteria is not susceptible to the antibiotic that is the effectiveness of antibiotic against the bacteria is eliminated or reduced.

It occurs when bacteria undergoes mutation that is alteration in the genetic material ( for instance, in one mechanism of resistance, mutation changes the protein that was earlier target for the antibiotic).

Therefore, by mutating the DNA in response to environmental condition ( such as exposure to antibiotic in this condition), bacteria gains beneficial characters and become resistant.

Thus, option B) is the right answer.

5 0
3 years ago
Read 2 more answers
Living organisms make and use three main types of ribonucleic acids (RNA) for their biological functions: ribosomal RNA (rRNA) m
Veronika [31]

Answer: ribosomal RNA (rRNA)-aids translation

messenger RNA (mRNA)-gives message

tRNA-transfers amino acids

Explanation:RNA is ribonucleic acid and its of three main types in human with specific function.

tRNA- Transfer ribonucleic acid is located in the cytoplasm and helps in the transfer of amino acid to the appropriate base sequence/nuclotide bases during translation

mRNA - messanger RNA carried genetic information form the nucleus the cell to the ribosome.

It helps read and transform the bases into a protein.

rRNA-ribosomal RNA is located in the ribosme and aids transcriotion of nucleotide bases into protein.

7 0
3 years ago
Other questions:
  • What is the function of the cholesterol molecules in a cell membrane? A. They make it thicker. B. They make it porous. C. They m
    12·1 answer
  • What is the function of Calcitonin hormone? ​
    11·1 answer
  • Non-renewable natural resources like oil and natural gas take a very long time to form. That is one reason for the building of w
    8·1 answer
  • Why is dna replication important to the growth and development of a multicellular organism
    5·1 answer
  • How many types of ocean current are there?
    13·1 answer
  • The active transcription and translation of only certain genes is called ​
    9·1 answer
  • Where is mitochondria found
    14·1 answer
  • HELLO ASAP ITS FOR A TEST
    8·2 answers
  • The offspring of a sexually reproducing organism receives
    8·2 answers
  • One of the building blocks of a nucleic acid <br>i will mark the best ancer the brainlyest
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!