I think it is keystone. If they were not there the population of urchins would go up and the kelp would go down.
Answer: The Pulmonary vein blood vessel carries oxygenated blood from the lungs back to the heart. Therefore, it carries the highest concentration of oxygen.
Explanation: i think is the answer not sure hope it help this question :)
True. Sensory cells are are cells responsible for detecting information through receptors that are found on the surface of the body. Information like sound, touch, taste, smell, and even temperature are detected through several sensory cells in the body. The skin, nose, tongue, and ears are organs of the body that are composed of several of these cells.
Answer:
with haploid or diploid set of chromosomes. True
Explanation:
There are two types of cells in the body, haploid cells and diploid cells. The biggest difference is related to the number of chromosomes that each cell contains, while diploid cells contain two chromosomes (2n), haploid cells contain a chromosome (1n).
Features:
1. A haploid cell has only one set of chromosomes (n), while diploid cells have two sets of chromosomes (2n).
2. In humans, somatic cells are diploid, while gametes are haploid.
3. Diploid cells develop as a result of mitotic cell division, while haploid cells develop as a result of meiotic cell division.
4. Mitosis produces 2 identical daughter cells, where both stem and daughter cells are diploid. In meiosis, a diploid cell divides twice to produce 4 haploid daughter cells.
5. Humans and most animals are considered diploid organisms, while algae and fungi are examples of organisms that are haploid in most of their lives. Male bees, wasps and ants are also haploid.