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
kati45 [8]
3 years ago
12

Which of the following is a source of genetic variation in sexually reproducing organisms?

Biology
1 answer:
kap26 [50]3 years ago
4 0
The answer is d.meiosis

You might be interested in
Marcus is taking a hiking trip in the mountains. He sees long scratches on the rock walls. The area was most likely eroded by a
sweet [91]


<span>The area was most likely eroded by a earthquake. Feel free to message me if you have any other questions.

</span>
4 0
3 years ago
Which comic book featured the first appearance of iron man?
rosijanka [135]

I think it is in Tales of Suspense #39 that the cover dated March 1963. May 1968  Iron Man #1 received its own title.

3 0
3 years ago
Read 2 more answers
Below is a food web from a tundra ecosystem in Nunavut, a territory in Northern Canada
navik [9.2K]

Answer:

2 and 4

Explanation:

Those eat things to become secondary

3 0
2 years ago
Why did Whittaker propose a five-kingdom system?
irinina [24]

Answer:

because he trusted no one

Explanation:

8 0
3 years ago
Bacteria can make their own folic acid, which is required for nucleic acid synthesis, but humans cannot and instead have to inge
lidiya [134]

This drug inhibits the growth of bacterial cells but not human cells. This is an example of the selective toxicity of antibiotics.

Folic acid is an essential component for all cells to synthesize nucleic acids (DNA and RNA). Human cells do not synthesize folic acid and they take it through food. Bacterial cells are impermeable to folic acid and hence they need to synthesize their own folic acid.

Antibiotics target the metabolic pathway of folic acid synthesis in bacteria by inhibiting one of the enzymes in this pathway. These drugs are only toxic to bacteria but not to humans because humans do not have the folic acid synthesis pathway and hence they do not get affected by the action of the antibiotic. This is known as the selective toxicity of antibiotics.

These antibiotics are designed in a way to target the infecting agent (bacteria) while rendering minimal or no toxicity to the host (humans).

Know more about selective toxicity here :

brainly.com/question/13142849

#SPJ4

7 0
2 years ago
Other questions:
  • How can plasmid be described?
    7·1 answer
  • Another layer of connective tissue, called the ____________ , extends inward from the epimysium and separates the muscle tissue
    9·1 answer
  • Plant that has round and yellow seeds (RrYy) is crossed with a plant that has round and yellow seeds (RrYy). What is the ratio o
    7·2 answers
  • An alleles is dominant is heterozygote when it is
    13·1 answer
  • PLEASE HELP ASAP
    11·1 answer
  • If an organisim has 32 chromosomes in its skin cells, how many chromosomes will be in its gamtes following meiosis?
    9·1 answer
  • What is a tumor? *
    11·1 answer
  • Please help me !!!! Time sensitive question!!!!!
    5·1 answer
  • How many hydrogen atoms are present in each water molecule?
    7·1 answer
  • 3. Explain how carbon monoxide acts as a competitive inliibitor on
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!