Answer: tt
Explanation: If the allele for a trait is recessive, it has to have 2 of that recessive allele to show that trait.
The scientific investigation is the systematic approach of the scientists to answer the questions about the world. It is applied almost all of the theories including the Theory of Natural Selection. Darwin's theory of evolution is a result of scientific investigation. In this theory, they investigate by observing the distribution of species.
Answer:
A) Reproduction
Note:
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Answer:
Its hard to live without the small intestine
Explanation: