Males only have a single X chromosome (XY). Therefore if the recessive gene is passed on to a male on the X chromosome there isn’t a chance of a dominant gene also being passed on like there is with females (XX)
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Frogs have smooth or slimy skin that is moist, whereas toads have thicker, bumpy skin that is usually dry. All toads are poisonous, while frogs are not.
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motility, transportation, capacitation, and fertilising ability. Once in contact with females, seminal fluid may stimulate ovulation, modulate immune activity, provide nutrition, alter reproductive-tract pH, and form mating plugs.
Explanation: Brainlest plz?
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The polarity of water molecules means that molecules of water will stick to each other. This is called hydrogen bonding. Polarity makes water a good solvent, gives it the ability to stick to itself (cohesion), stick to other substances (adhesion), and have surface tension (due to hydrogen bonding).
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What do fossils provide evidence of?
-Fossils provide evidence of the earliest forms of life.
Which of the terms is used to describe the difference between them?
- Evolution