Answer - D. Were in Search for food to eat.
Reasoning - As ice age and resistant of water became changing in ponds and lake the resource of food started to deplete so evolution became a evolving for creatures aka reptiles.
Answer: Positive charge of 1
Explanation: This is because it is believed that it is from the charge of the quarks that make up the nucleons which are protons and neutrons.
Answer:
Glycogen
Explanation:
In humans polysacchride is stored in the form of glycogen and used as a source of energy.
An ectotherm gets its heat from external sources
(Remember "ecto" means outer, "endo" means inner)
Answer:
It allows information to go from one neuron to another through neurotransmitters.