Answer:
Gametes have adaptations to increase the chances of fertilisation and successful development of an embryo. For example, sperm cells are produced in large numbers to increase the chance of fertilisation. Sperm cells have these adaptations: a tail to move them towards an egg cell.
I will give you the webpage for it, since I am not allowed to give answer out.
http://www.etymonline.com/index.php?term=stomach
You should be able to figure it out using this link
Answer:
Psychology is extremely useful in our regular daily existence. ... Improving Communication Skills-Psychology makes it more clear how people think and act while speaking with others. With the assistance of brain research, individuals can fathom motions and activities which would make correspondence significantly simpler.
Explanation:
Answer:
Stress is a feeling of emotional or physical tension. It can come from any event or thought that makes you feel frustrated, angry, or nervous. Stress is your body's reaction to a challenge or demand. In short bursts, stress can be positive, such as when it helps you avoid danger or meet a deadline.
Answer:
The body requires sun to make vitamin D (option b)
Explanation:
Vitamin D is a nutrient belonging to the liposoluble vitamins —together with vitamins A, E and K— that participates mainly in the metabolism and homeostasis of calcium and phosphorus, among other functions.
<em><u>Dehydrocholesterol</u></em><em><u> is the chemical compound from which </u></em><em><u>vitamin D₃</u></em><em><u> —cholecalciferol— is synthesized, which occurs in the skin thanks to the effect of </u></em><em><u>sunlight</u></em><em><u>.
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Cholecalciferol is inactive, and as it passes through the liver and kidney it is transformed into its active equivalents, calcidiol and calcitriol, respectively.