Mitochondria is the powerhouse of the animal cell
Answer:
Element
Explanation:
Element is a pure substance that cannot be broken down.
Active transport is a cellular transport mechanism. It’s the movement of molecules that are assisted by enzymes along the way to a higher concentration.
The answer is C. Fertilization. hope I helped.
The structure of DNA is called a double helix because DNA is made up of two strands of nucleotides wound together in a spiral.
DNA has two strands that run opposite of each other and twist together much like a twisted ladder. Each backbone of the ladder is made up of alternating groups of sugar and phosphate groups.
