I think the answer is b not too sure though
Because there always needs to be something that starts it off. Eg: If there was no grass, there would be no animals.
Answer:
Study it under a microscope!
Explanation:
Any organisms in the pond water are more than likely very, very small! Microscopic, even;)
B testis, this is were the sperm is produced
Answer:
High dietary protein intakes are known to increase urinary calcium excretion and, if maintained, will result in sustained hypercalciuria. To date, the majority of calcium balance studies in humans have not detected an effect of dietary protein on intestinal calcium absorption or serum parathyroid hormone.
Explanation:
