Remember for a di hybrid cross with two completely heterozygous parents, the phenotypic ratio will always be 9:3:3:1
9 will always display both dominant traits, black and rough hair. 3 will display black hair and smooth hair and 3 will display not black hair and rough hair and 1 will display both receive traits
Answer: maintenance the health of the natural world. Through allocation,exploitation and protection
Explanation:
This involves the health state of the living organisms of the word :the vegaation, the aquatic organisms and ithe biodervasity.
They are both light resources.
mark brainly man.
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