<span>All mammals have at least one X chromosome. Female mammals have two X chromosomes, so each of her eggs has a single X chromosome. Male mammals have XY chromosomes, meaning they can generate sperm containing the X chromosome, or sperm containing the Y. If the egg receives sperm containing the X chromosome, then the resulting individual forms ovaries, and is female.</span>
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scientists need to be able to use math because sometimes they need measurements and use equations to figure things out
Answer:
(2) a graduated cylinder to measure 30 mL of water for each plant daily
One of the characteristics you're looking for is whether the organism is a vertebrate (with a backbone) or an invertebrate (without a backbone).
The fittest organisms tend to survive so they continue to populate
the organisms being hunted become extinct so the population of their species decreases immensely
