i think it's contact, dynamic, and regional
hope this helps
Answer: Option A
Explanation:
An endosperm is defined as the tissue which are produced inside the seeds during fertilization. As the endosperm surrounds the embryo, it acts as the food storage for the embryo and provide nutrition.
During embryo development , endosperms supports enlargement of cotyledons which helps in storage function and stores fats and starch and provide nourishment to the embryo.
for example cereal crops or grains are primarily endosperm which stores fat and starch and are edible fruits.
Hence, the correct option is A, endosperm can be a cotyledon which functions as a source of food for embryo.
During electrophoresis, the fragment that travelled the furthest will be the smallest one. So if it's coming from top to bottom, then the band closest to the bottom will be the smallest one.
The answer is either the second one or the fourth one.
The answer is actually 4.4 billion years, but i guess you can estimate to 4.5
