Answer:
1. The descendants are Blue whales, and Humans
2. Back bone Lungs , radius and ulna (front limb bones), structures for producing milk
Explanation: It points to the descendants of common ancestors to blue whales and humans, If not please tell me more clearly what you meant by descendants.
Answer: As it takes up more water, the seed expands and the seed coat cracks open. The embryo inside the seed is made up of a small shoot and a small root. The root is the first to emerge from the seed. As it grows, it anchors the plant to the ground, and begins absorbing water through the root.
Explanation: Hope this helped !!!
Answer:
I believe it is A, it is a crucial part of the process
2. DNA is important to carry genes or genetic materials of the parents
Answer: Plants are cloned to produce identical plants quickly and economically.