A. Sex cell
It looks like there’s more to the problem but since you only gave one I can only answer one. Hope this helps
Answer -
(1) Snapping turtles can get oxygen by pushing their head out of the mud and allowing gas exchange to take place through the membranes of their mouth and throat. This is known as extrapulmonary respiration.
(2) If they cannot get enough oxygen through this method they start to utilize anaerobic pathways, burning sugars and fats without the use of oxygen.
75% species go extinct to be considered a mass extinction
Answer:
The options
A. Methylation
B. Dephosphorylation
C. Phosphorylation
D. Enzymatic transformation
The CORRECT ANSWER IS B.
B. Dephosphorylation
Explanation:
The regulation of the phosphorylation of myosin light chain (MLC) is a major step in the regulation of smooth muscle cell contraction.
The dephosphorylation of myosin light chain (MLC) occurs in smooth muscle tissue and causes the relaxation phase of the muscle cells. This step is controlled by the MLC phosphatase (MLCP).
Correct answer: A). The current hypothesis of the evolutionary relationships between organisms
The tree of life is a metaphor that expresses the idea that how life is related to ancestors. Charles Darwin first uses this in the modern biology. It is an evolutionary tree that depicts the relationship between various biological entity. It holds the data that are collected from RNA, DNA and protein analysis. It shows the current hypothesis about the evolutionary relationship among the taxa.
Hence, the correct answer would be option A.
