I would say D. poor spatial awareness because cattle can be easily startled by sudden movements or objects coming into their vision.
The correct answer is B) abundant light, abundant bacterial prey.
The situations that would be most favorable to the re-establishment of resident zoochlorellae, assuming compatible Chlorella are present in P. bursaria's habitat is "abundant light, abundant bacterial prey."
This element needs these conditions of abundant light and bacterial prey to have the correct metabolism and live. The bacterial prey will help the element to grow. This is going to increase the preservation of the green algae.
The phagocytotic barrier, which is a part of innate immunity best describes the above scenario.
Answer: Option C
<u>Explanation:</u>
The largest organ of the body is the skin, similarly the skin also an immune barrier to the body. If there is any damage in the skin , its pH gets compromised and there it calls in for a microbial attack.
When there is a cut in the skin and bacteria enter the body, the immune system responds. First, macrophages approach the area of the cut. Next, the macrophages surround any bacterial cells and engulf them, the Phagocytosis barrier which is the part of the innate immunity