One parent has tall stems and the other parent has short stems. All of the offspring have tall stems. How is this possible?
O Stem size is an acquired (learned ) trait
O Tall stem is the recessive trait
Short stems are dominant over tall stems.
O Tall stems are dominant over short stems

cancer   is   essentially   uncontrolled   mitosis   of specialized cells

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i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.

a. an idea which cannot be disproven!

explanation: