Answer: A
Explanation:
Proteins make up cell membranes.
Hope this helps! ^^
Answer: Males inherit only one X chromosome, so they show all traits on that one chromosome without another to mask them
Explanation: Males are born with XY Females are born with XX
You're right. The Upper Mantle is directly under the Crust. Hope this helped! =^-^=
Answer:
Ethylene
Explanation:
Ethylene is a hormone required to trigger fruit ripening, and it can be blocked by using synthetic compounds, such as 1-methyl-cyclo-propene (1-MCP).