Primary spermatocytes, spermatids
Answer:
B
Explanation:
The Earth is tilted 23.5 degrees on its vertical axis. During the northern hemisphere's spring and summer, the northern hemisphere is tilted towards the Sun.
The brain is incorrect. Its the nucleus (the brain is an organ not a organelle)
hope that helps :)
It’s the doctor of all systems
<span>The single most abundant chemical substance of the body, accounting for 60% to 80% of body weight, is "Water"
Hope this helps!</span>
