I think it would be A. Because plants have bacteria on their roots that take the free nitrogen in the air from the soil and turn it into usable nitrogen. Animals could get usable nitrogen from eating plants since they have bacteria that make it. Then if an animal eats an animal that ate the plant, then it could get that nitrogen. But i am not completely sure though. I just learned this recently. I hope this helped :)
Answer:
Anterior lobe
Explanation:
The pituitary gland is made up of two distinct lobes: the anterior lobe and the posterior lobe. The anterior lobe secretes as many as seven different hormones. Some of the hormones secreted by anterior lobe are namely adrenocorticotrophic hormone, prolactin, gonadotropins, melanocyte-stimulating hormone, and thyroid-stimulating hormone. The posterior lobe releases only oxytocin and vasopressin in the bloodstream. These hormones are not produced by the posterior lobe but are only stored and released by it.
All visual pigments contain retinal
derived from vitamin A
