What are some examples of negative feedback? Select all that apply
1) Cells increasing their activity to produce more heat when it's cold.
2) The kidneys reducing the water level in the body when a person drinks alot of fluids.
3) Pupils getting smaller to reduce the amount of light reaching the eye when the light is very bright.
4) The body produces protein. In turn, the protein triggers the body to make more protein.

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides

more words for this could be abiotic and biotic

abiotic: living organisms within an ecosystem

biotic: non-living organisms within an ecosystem