It is the natural/genetic ability of an organism to avoid or repel attack by biotic agents (pests etc.) or to withstand the effects of abiotic agents example (chemicals).
There is no pigment in the brain, so it is in it's natural colour, grey.
Answer:
The answers are :-
1.What is the term that refers to the change that happens in a living organism because of a stimulus?
<u>c)</u><u> </u><u>stimulus</u>
2. The best example of an organism's response to a stimulus.
<u>d)</u><u> </u><u>dog barks when there are </u><u>fireworks</u><u>.</u>
3. The process by which living organisms stay the same.
<u>b)</u><u> </u><u>homeostasis</u>
4.How does a one-celled organism grow?
<u>c) It </u><u>divides</u>
<u>PLZZ</u><u> </u><u>MARK</u><u> </u><u>ME</u><u> </u><u>AS</u><u> </u><u>BRAINLIEST</u><u> </u>
Answer:
Chlorophyll is a green pigment found in chloroplast in plants. It absorbs sunlight during the process of photosynthesis. It is a chelate molecule. In a chelate molecule a central metal ion forms bonds with a large organic molecule made of carbon, hydrogen and other elements like nitrogen or oxygen.
In chlorophyll, magnesium is the central metal ion and it is bonded to a large organic molecule called as porphyrin. Porphyrin constitutes four nitrogen atoms to which the central magnesium is bonded in square planar arrangement. Since chlorophyll is responsible for the green color of the leaves, more the green color more the chlorophyll content and more is the nitrogen content. Hence, chlorophyll meter measures this green light and finds out if the plant needs more or less nitrogen.
The weather man said the relative humidity will be high today
