Please answer these questions about Skeletal Functions and Connections: 1. Name and describe the two main types of tissue that make up bone.
2. Why is it important for scientists to study weird animals like jerboas?
3. Why is it important for astronauts to exercise when spending long periods
of time in microgravity or space?

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

i hope this : )

i think the answer is a.keratin is the pigment responsible for skin color.