Explanation:
1). Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
Chromosomes are not visible in the cell’s nucleus—not even under a microscope—when the cell is not dividing.
2) is pic
The ability to reproduce
The ability to respond to stimuli .
The 2nd one may be a bit confusing but people who do not respond to stimuli eg they have CIPA or are blind or deaf can still survive
by using a key sampling or a quadrat where it is placed randomly on each one
Answer:
I don't know the exact word they want, but organisms use energy for motion and any activity they perform regularly. (eg: hunting, climbing, digging, etc.)
The enzyme doesn't participate directly !! it helps in changing the substrate into product and remains unchanged itself !!
so the answer is Enzyme !!
