The answer A. DNA in the nucleus controls all cell activity.
I believe its the centromere yes its the centromere :)
Answer: A. scalp hairs grow constantly throughout life.
Explanation:
Hair is a squamous keratinized epithelium which is consist of multi-layered flat cells. Hair are made up of protein called "keratin".
The statement "scalp hairs grow constantly throughout life" is false because at a particular age or due to several factors scalp hairs stop growing.
Scalp hair growth rate depends on three main factors including sex (female hair grows faster than male), age (hair growth slows with age), and ethnicity (Asian hair grows slower than Caucasian hair).
Scalp hair growth stops because of follicle devitalization when the hair length become two or three feet.
Hence, the correct answer is A. "scalp hairs grow constantly throughout life".
<span>The processes of photosynthesis and cellular respiration are complimentary. During these energy conversions some energy is lost in the form of heat. Most things that create and use any type of energy find that some is often lost in the form of heat.</span>
