for question 1.) i am pretty sure of answer a.)
for question 2.) the answer is most likely b.)
i would recommend waiting for a second opinion. just to be safe.
Calcium provides strength as a element, though it is present as calcium chloride on the exoskeletons.
Plant pollen can provide information of what type of plants grew during that era and area. In turn, it can also determine how the Earth''s climate has changed over time. Identifying the species of the plants through the pollen will help because when scientists compare them to the plants today and the climates they thrive in, they will be able to tell what type of climate that certain plant existed in.
The answer is True.
<span>transitional epithelium</span>
Im not so sure about this answer
