Answer:
The answer is D. The loss of biodiversity caused changes to food webs in the turtle ecosystems.
Explanation:
They all keep our econemy healthy and clean.
Explanation:
Complete answer:
A mature erythrocyte lacks nucleus and mitochondria so as to make a place for the accommodation of more hemoglobin and hence more oxygen molecules. Lack of such organelles also provides the peculiar biconcave appearance of RBCs that aids in efficient diffusion. Young mammalian RBCs are nucleated.