Answer:
Both male and female parents are involved in sexual reproduction in animals. Sexual reproduction is the process of female and male gametes fusing to create new individuals. Reproductive Organs in Animals Reproductive organs of male include two testes, a penis, and sperm ducts.
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Answer:
<em>Kids ages 2 to 5 usually just do simple movements like running, jumping, or wiggling, but kids ages 6 to 7 can learn more complex games with guidelines and they can do more dangerous, complex motions like riding a bike or swimming.
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</em>Responses will vary. A sample response follows: <em>The main differences between the types of exercise in the two categories are the complexity of the movements needed to participate in the exercise and the complexity of the rules. The exercises for children 2 to 5 are relatively simple with repetitious movements and few rules. The activities for children 6 to 7 require more complex movements and have more complex rules to follow.</em>
<span>The answer is B. An unplanned pregnancy can have many effects on a person's life, including making participating in social activities difficult, especially those that are not child friendly. It can also interfere with future romantic relationships. Especially if the parents are young, it can interfere with educational opportunities or careers. The risk of getting pregnant again is not affected by the number of times you have been pregnant before, whether planned or unplanned. </span>
Answer:
A and D
Explanation:
A. Sleep deprivation in turn downregulates dopamine receptors, which makes people more impulsive and vulnerable to drug taking.
D. When a person repeatedly uses drugs, he or she increases the risk for insomnia. This is because continued substance abuse affects the neurochemical functioning of the brain. It disrupts the brain’s sleep-regulatory systems and, in turn, disturbs the latency, duration, and quality of sleep for the user.
Economic factors such as employment rates and education levels have the biggest impact on population.
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