Answer:
C. Veins.
Explanation:
Within the body, there are a total of four pulmonary veins, and all of them connect to the left atrium of the heart. The heart pumps oxygen-depleted blood into the lungs via the pulmonary arteries.
Answer:
Explanation:
1)It is better to stick to the lower trophic levels around 2 because it is more consumable.
At the lowest trophic level, there is the lowest consumption of energy. As a result, more people can be fed with the lower trophic levels than the higher trophic levels.
Edit: Sorry forgot to do question 2
2) Different levels in a food web...
Answer; B (transpiration)
Explanation; it is the process by which water is given off by plants to the atmosphere through the stomat
Answer:
The correct option is B
Explanation:
The alpha and beta-gamma subunits both can bind to target proteins. Once a G protein becomes active, its alpha subunit and beta-gamma dimer both have the ability to pass on messages in the cell via connecting or binding with other membrane proteins that are involved in the transduction of signals. In this light, B is the best option.
