Answer:
X: Positive gravitropism
Y: Negative gravitropism
Explanation:
i just did the quiz and got it correct
D phytoplankton i believe
10-15% of energy is transferred between a producer and primary consumer.
<span>The answer is B) cell wall. The cell wall is a structure important cell protection and shape. It is necessary for the survival of unicellular organisms, such as Archaea and bacteria. Plants, some fungi, and algae also have cell walls with major function in structural support and protection against environmental conditions and infection. However, animal cells do not have cell walls.</span>