1. Which of the following structures are NOT involved in asexual reproduction? a. gametes
c. stem
b. root
d. tuber
2. A farmer grew only one type of onion. All of the onion plants died from the same disease.
What can be said on this onion plant population?
a. The onion plants were genetically identical.
b. Only few plants were resistant to the disease.
c. All of the onion plants were resistant to the disease.
d. The onion plants were genetically different from each other.
3. A farmer wants to propagate a good variety of crops in a way which maintained all its
desirable traits. Which of the following methods should be used?
a. self-pollination
b. vegetative propagation
c. growing seeds produced from this variety
d. cross-pollinating this crop with another good variety and growing the seeds resulting
from the cross.
4. A sperm unites with an egg cell to form a zygote. Which is process taking place?
a. asexual reproduction
c. pollination
b. fertilization
d. vegetative propagation​

hope it mark me as brainlieast.

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."    

and after water is usually warmed by the sun the water temperature raises and then evaporates .

bradykinin is a physiologically and pharmacologically active peptide of the kinin group of proteins, consisting of nine amino acids.