Answer:
The nervous system consists of the brain, spinal cord, sensory organs, and all of the nerves that connect these organs with the rest of the body. Together, these organs are responsible for the control of the body and communication among its parts.
Answer:
While fruits are considered a healthy food, sugar is sugar, even if it comes from fruit. The science behind carbohydrate metabolism suggests there is a limit to how much fruit is advisable to consume. And, also in what circumstances you need to avoid fruit
Explanation:
Answer:
D. Yes, two hydrogen bonds could form between thymine and cytosine.
Explanation:
A hydrogen bond (often informally abbreviated H -bond) is a primarily electrostatic force of attraction between a hydrogen (H) atom which is covalently bound to a more electronegative atom or group, particularly the second-row elements nitrogen (N), oxygen (O), or fluorine (F)—the hydrogen bond donor (Dn)—and another electronegative atom bearing a lone pair of electrons—the hydrogen bond acceptor (Ac).
The formation of stable hydrogen bonds depends on the distance between two strands, the size of the bases and geometry of each base. Stable pairings occur between guanine and cytosine and between adenine and thymine (or adenine and uracil in RNA).
One hydrogen bond could form between the C4 carbonyl group on thymine (a hydrogen bond acceptor) and the C4 amino group on cytosine (a hydrogen bond donor). Another hydrogen bond could form between N3 of thymine (a hydrogen bond donor) and the N3 of cytosine (a hydrogen bond acceptor). Note that the C2 carbonyl groups found on both bases are both hydrogen bond acceptors and therefore a hydrogen bond cannot be formed between them.
1) puberty hormonal changes lead to acne
2) feeling aroused by the opposite sex
3) self-conscious
4) peer pressure
5) body odor
solve problem
1) invest in good facial wash and regime
2) practise safe sex, sexual education in school
3) take a hobby or sports to gain confidence
4) join support groups
5) use deodorant and bath least twice a day.
Fat cells in the adipose layer under the skin.
