Answer:
option D.
Explanation:
The correct answer is option D.
Photorespiration consumes O₂ and releases CO₂.
Photorespiration process is a gas exchange process which resembles opposite to the process of photosynthesis where intake is CO₂ and O₂ is released.
Photorespiration process does not produce ATP but it use O₂ to produce CO₂. Photorespiration uses a sugar-phosphate as its primary fuel.
The possible genotypes and phenotypes for the offspring are:
Yy
Yy
yy
yy
Answer: True
Explanation:
Amphibians are the animals that spend their life partially in water and partially on land. They are cold blooded animals that cannot regulate their body temperature.
Some of the characteristic feature of amphibians are:
They have a moist skin but do not have scales on their body and gas exchange takes place through their skin.
They have four legs, a double loop circulatory system, aquatic larvae.
Example: Toad, salamander, et cetera.
Overfishing is catching too many fish at once, so the breeding population becomes too depleted to recover. Overfishing often goes hand in hand with wasteful types of commercial fishing that haul in massive amounts of unwanted fish or other animals, which are then discarded. Overfishing endangers ocean ecosystems. Secondly, unregulated fishing practices that result in grave harm include by-catch (as explained in the previous point) and Trawling. Trawling involves scraping along the bottom of the sea to gather fish. This practice is one of the major causes of destruction to marine habitats. Third, overfishing has led to a decrease in the population of productive fish, resulting in lesser stocking of the fish. Forth, bycatch leads to the capturing of marine animals that are not used or required. The animals may include protected or endangered species or species that are of little or no economic value. If caught, they are normally destroyed and discarded either in the water or ashore. Lastly, fish farming requires feed for reared fish. For example, you will need between four and eleven pounds of prey fish to raise just one pound of farmed salmon. With the rapid expansion of the aquaculture industry, prey fish population is reducing at alarming and untenable rates. According to some researchers, if this trend continues, fish farming will have outstripped the supply of fishmeal by 2020.
Answer:
A) identify the N-terminal amino acid of a polypeptide
Explanation:
Edman degradation is a series of chemical reactions that enables the stepwise cleavage of the amino-terminal residue from a peptide/protein. This method sequentially removes N-terminal residues without disrupting peptide bonds between other amino acid residues, thereby obtaining the amino acid sequences from the target peptide/protein. Edman degradation can be defined as a cyclic method in which each residue is cleaved off from the amino-terminal end of the peptide/protein and then identified by reverse-phase chromatography, which is a technique used to separate peptides/proteins on the basis of their hydrophobicity.