The answers are hopefully in the image
A covalent bond forms when two non- metal atoms share a pair of electrons. Substances with covalent bonds often form molecules with low melting and boiling points, such as hydrogen and water.
Answer:
Photosynthesis
Explanation:
The process a plan uses to make food for itself is photosynthesis. And the reverse is cellular respiration.
Answer: The correct answer is- Polymerase chain reaction.
Polymerase chain reaction is a technique in molecular biology that is used to produce multiple copies of a piece of DNA molecule through multiple cycles of three stages that are-
1) Denaturation- The two DNA strands are separated ( so that template DNA are exposed) at higher temperature.
2) Annealing- Primers ( forward and reverse) are attached to the template DNA.
3) Extension- New DNA strand is synthesized using enzyme Taq polymerase that adds dNTPs ( deoxyribonucleoside triphosphate) according to the complementary sequences in the template.
Answer:
a. 40%
Explanation:
up to 40% increasing the light intensity increases the oxygen production. Beyond 40% there is no effect.
I hope this helps :)
