Answer: Increased fecal coliform
Explanation:
The fecal coliform is a strain of bacteria which can be found in colonies in the digestive tract of humans and animals. It comes out along with the fecal discharge from the body. It is likely to be present in the farm runoff because it can be an ingredient of cattle dung based manure which could be used in farm land. Also will be present in the feedlot because of the daily discharge of dung by the cattles in the feedlot. In the septic tank the human or animal fecal matter will exhibit a colony of the coliform bacteria. If the solid and liquid matter from any of these discharges enters into a fresh water body will likely to cause pollution because of the presence of fecal colliform. It results in appearance of foul smell in water and likely to deteriorate the quality.
<span>Aquatic biomes are characterized by water</span>
Cholesterol in Cell membrane strengthens and helps to maintain the fluid nature of a cell regardless of temperature
<u>Explanation:</u>
All organisms are made up of one or more cells. Each cell is protected or differentiated by a covering called as the cell membrane. Phospholipids are the basic structure of the cell membrane. Cholesterol prevents the loss of fluid from phospholipids.
Cell membrane has a lipid layer and cholesterol which is placed between the phospholipids to maintain the fluid nature of the cell under different temperature. Cholesterol prevents the cell from solidifying and helps maintain the fluid. Cholesterol actually acts as a buffer between different temperatures.
Answer:
a. hox genes.
Explanation:
HOX genes have the following functions:
- HOX genes are the homeobox subset.
- They specify the areas of the embryo's body plan along the animal head-tail axis.
- They are encoding Hox proteins that specify the position characteristics and ensure that the right structures form at the right position in the body.
- They regulate high-level executive genes, such as transcription factors and intracellular signaling molecules, which adhere, number, form, and growth to cells.
The vertebrates are highly preserved.
The clusters and other genes occur uninterrupted.
Evolutionary, the heterogeneous regulatory areas between the genes most previously present are larger and more preserved than those present at the other ends of the clusters.
The characteristical feature is that these are homeodomain proteins with a highly preserved area of DNA binding encoded with homeobox gens.
