The answer would be 9. There are nine <span>essential amino acids needed to create a complete protein. </span>
The diaphragm stops the passage of light
<span>starfish
</span> All normal eggs from the mother have an X chromosome while usually half the sperm cells from the father have a Y (male) chromosome and the other half have an X (female) chromosome and it is therefore the father's sperm that dictates which gender the embryo will take.
If the egg is fertilized by a sperm with a Y chromosome then the embryo will be a genetic male due to XY chromosome combination.
<span>If the egg is fertilized by a sperm with an X chromosome then of course the embryo will be a genetic female due to XX chromosome combination.</span>
<h3><u>Answer;</u></h3>
Morphology
The taxon species may be defined by <em><u>reproductive isolation and morphology </u></em>
<h3><u>Explanation;</u></h3>
- <em><u>A taxon is a group of one or more populations of an organism. </u></em>
- <em><u>Morphology is the form or the appearance of a particular organism, </u></em>while <u><em>reproductive isolation is the separation of organisms by some type of barrier.</em></u>
- <em><u>Reproductive isolation is a type of mechanisms that prevent two or more organisms or populations from exchanging genes through reproduction. </u></em>This occurs when two organisms or species are separated for too long such that they can no longer reproduce with each other due to different adaptation and changes in the environment.
- <u><em>Morphology and reproduction isolation may be defining characteristics of taxon of species.</em></u>
