Explanation:
Hey there!
Your answer is option B.
Generally, in double fertilization one nuclei reacts with egg and form zygote and other reacts with polar nuclei. On this process, fruits and seed are found to be formed.
<em><u>Hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>
Answer:
fossils depict how our bones have changed from past year to today.
Explanation:
for example, wisdom teeth were use to eat raw meat and crush bones as shown in fossils like Lucy. Another example would be extinct animals preserved, they were not able to survive and adapt to the earths changing conditions.
Answer:
D) presence of transcription activators or repressors
Explanation:
The reason why this is not post-transcriptional regulation is that activators actually start the process of transcription by binding to specific sites. while on contrary when repressor binds it halt the process.
For example, there is a protein called CAP which in the presence of cAMP bind with promoter region and enhances the activity of RNA polymerase . While in the absence of cAMP it can not bind to promoter hence the transcription stooped.
ANSWER:I think the answer is number 3
