A group of three letters on DNA is called?

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Thanks+ BRAINLIST only for correct answers it’s due in 10 mins I really need help

1.what is the order if visible light in increasing energy?
-violet, indigo, blue, green, yellow, orange, red
-red, orange, yellow, green, blue, indigo, violet

2.visible light is a mixture of
-refraction and reflection
-atoms and molecules
-many colors
-ultra violet and non violet rays

Manuel eats lunch in the cafeteria every day. How does his digestive system make use of the lunch he eats?

a
A. It changes the food into cells that protect the body from illness.
b
B. It converts food into oxygen that is absorbed into the blood.
c
C. It breaks down some food into usable material for the body and discards the rest.
d
D. It breaks down food into the chemicals needed by the body to regulate temperature.

Again PLEASE help I will give Brainliest!!!!!!!!!!!!!!!!

Which process has the greatest potential for genetic variability?
O
A cell differentiation
O
B. interkinesis
O C. meiosis
O
D. mitosis

The branch of biology concerned with the relationships of organisms to one another and their
environment.

A. Ecology
B. Environmental science
C. Demography
D. Sustainability

The process of _______ involves the removal of dissolved minerals from water so it can be used for drinking. a. desalination b. water reclamation c. greywater use d. irrigation