Answer:
A) an allele is a form of a gene. There are at least two alleles for any given gene.
Explanation:
Genes are heredity that are transferred from a parent to offspring and determine a physical or mental characteristic for the offspring
Answer:
C
Explanation:
the first 2 choices aren't even systems at all, and D is specifically talking about the water and not mentioning animals/plants at all.
hope this helps!
Answer:
Nitrogen
Explanation:
What element is not part of a disaccharide?
Nitrogen
Thigmotropism is a plant's response to contact with a solid object<span>.</span>
