Answer:
D. Many local traditional crop varieties have become threatened by extinction.
Explanation:
1nucleic acids
2protein
3carbohydrates
4 Carbohydrates
5 covalent bonds
6hydrogen bond
7hydrogen bond
8ionic bond
9covalent bond
Answer: Phenotype
Explanation:
Phenotype refers to the total physically observable feature of an organism. it include hair color, height, body size etc
A or C is the right answer.
Answer:
Genes, chromosomes, and nucleus