What is the maximum number of atoms that a hydrogen atom can bond with an organic compound

Which statement best describes a keystone species? o a. it has littlelmenetic variation. it has an extremely high population. 0 b. 0 c. it remains unaffected by all environmental changes. od. it has a strong influence on the ecosystem. 0 e. it's the first species to populate a new ecosystem.

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

What makes a dominant allele different from a recessive allele