Answer:
DISADVANTAGES
Embryonic stem cells can have high rejection rates
Adult stem cells have a determined cell type
Obtaining any form of stem cell is a difficult process
Stem cell treatments are an unproven commodity
Stem cell research is a costly process.
ADVANTAGES
can help enhance the growth of new healthy skin tissue, enhance collagen production, stimulate hair development after incisions or loss, and help substitute scar tissue with newly developed healthy tissue.
Answer:
Through denitrification. Nitrates are converted back to N2 gas by denitrifying bacteria. N2 gas is also returned to the atmosphere through volcanos.Explanation:simple science
Answer:
Nutrient cycle is a process of movement, reuse or recycling of nutrients in that particular environment. They are for both living and nonliving things, elements like carbon, oxygen are recycled through such cycles.
Nutrient cycle in an ecosystem involve:
- carbon cycle
- nitrogen cycle
- oxygen cycle
- phosphorus cycle
Answer:
B. Simple Cuboidal
Explanation:
Because the simple cuboidal epithelium consists of a single layer of cells that are as tall as they are wide. The important functions of the simple cuboidal epithelium are secretion and absorption. This epithelial type is found in the small collecting ducts of the kidneys, pancreas, and salivary glands.
Answer:
Explanation:
Using its web as a gill, the diving-bell spider can live underwater with only occasional visits to the surface. The arachnid (Argyroneta aquatica) breathes air from a bubble that it grabs from the surface of water using fine hairs on its abdomen.
