Answer:
for any behavior to survive natural selection, it needs to help an animal or its genetic material
Explanation:
Answer - A
Prokaryotic cells, being unicellular organisms, do not have a defined nucleus. They have a nucleoid in place of the nucleus which is formed of a single chromosome consisting of double stranded DNA.
Answer:
The correct answer is option - A. Gametophyte, C. spore, and D. sperm.
Explanation:
The egg cell of a plant is haploid in the cell which means it has only one set of chromosomes. The haploid cells arise from the meiosis cell division in parent sex cells. These parent cells are divided into four cells with half of the chromosome number in comparison to the parent cells.
The gametophyte, spore, and sperm all three are the product of the meiosis division and are haploid in number.
Thus, the correct answer is option - A, gametophyte, C. spore and D. sperm.
Answer:
muscle contraction increases interstitial fluid pressure and compresses the blood vessels within the active muscle. As a consequence, blood flow is highest when muscles relax between successive muscle contractions.
Explanation:
