Number of organisms per unit time.
Answer:
Closed the first one
Explanation:
In amphibians, reptiles, birds, and mammals, blood flow is directed in two circuits: one through the lungs and back to the heart, which is called pulmonary circulation, and the other throughout the rest of the body and its organs including the brain (systemic circulation).
most mammals, have closed cardiovascular systems. The two main circulation pathways in invertebrates are the single and double circulation pathways.
Question 18 is Photosynthesis.
Question 19 is also Photosynthesis
Hope it helps
FCRL4 is an immuno-regulatory receptor that is usually expressed by memory cells that are located in the lymphoid tissues in a region called the sub-epithelial region. During the time of autoimmune disease responses, the glutathione and the FCRL4 function as pro-inflammatory for t-cells and b-cells respectively.
Answer:no
Explanation:
it can not be a hybrid because the plant is to short and two recessive genes instead of two different genes
