The boundary between the mesosphere and the thermosphere above it is called the mesopause.<span />
False. It is the opposite.
Answer:The most direct forms of membrane transport are passive. Passive transport is a naturally-occurring phenomenon and does not require the cell to exert any of its energy to accomplish the movement. In passive transport, substances move from an area of higher concentration to an area of lower concentration.
Explanation:
Answer:
its Mechanical digestion and Chemical digestion
Explanation:
D, low sea levels caused the ice age.