Answer:
They can't because they are complete by themselves, i.e. independent of each other to survive, unlike higher animals and plants.
Answer:
The seminal vesicle and the prostate glands add their secretions so that the sperm are in a fluid that makes their transport easier, and this fluid also provides nutrition.
Explanation:
Sedimentary rocks are formed by cementation and compaction
<span>Her data suggested that DNA is a helical structure that has two strands attached in the middle by the phosphate bases. That was the necessary information, needed to complete an accurate model of the structure of DNA. She also was the first one to announce that the phosphate units are located in the external part of the DNA and that the amount of water found in the molecule is in accordance with other parts of it.</span>
Answer: The arteries (the aorta)
