Answer:
Below
Explanation:
Grain germinates in the pollen.
After the pollination, Germinates grain goes off the carpel and grows.
After it is quite grew, it moves down to the ovary.
The pollen tube breaks into the ovule and bursts into the embryo sac.
I hope this helps you :)
Answer: The enzyme 's active site binds to the substrate. ... When an enzyme binds its substrate it forms an enzyme-substrate complex. Enzymes promote chemical reactions by bringing substrates together in an optimal orientation, thus creating an ideal chemical environment for the reaction to occur.
<span>The correct answer is a unilinear evolutionary theory.</span>
<span>According to this theory, all societies would pass through the same basic stages, although the speed of transition might vary. The unilinear theory is a social theory, whichconsidersr that Western culture was the most evolved one.</span>
Cell,tissue,organ,and organ systems
