Which of these is an organism?

a
a drop of water
b
a herd of sheep
c
a heart
d
a wolf

D. Wolf

Explanation:

An organism is a living thing, like a plant or an animal. Thus, you can rule out A (because water isn't alive)  and C (a heart is an organ, not an organism). That just leaves B and D. Since the questions is asking for a singular organism, the answer must be D (a wolf).

hi there!

your question asks at which segment does freezing occur.

since we're talking about water, the freezing point of water will be 32 degrees fahrenheit or below.

hope this ! ~

connect the batteries in series and hope