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serious [3.7K]
3 years ago
14

How many pairs of autosomes do humans have?

Biology
1 answer:
faust18 [17]3 years ago
4 0
Humans have 23 pairs of autosomes 46 in total
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Like gymnosperms, many grasses and angiosperm trees are wind-pollinated. To conserve energy, these angiosperms do not produce co
lutik1710 [3]

Answer:

C. petals

Explanation:

A)fruits

B)sepals

C)petals

D)anthers

E)ovaries

<em>The part that will not be necessary in wind pollinated angiosperm is the petals .</em>

The petal is a part of flower that is usually colorful and primarily function by attaracting insect pollinators to the flower.

<u>Since wind pollinated angiosperms do not need to attract insect for pollination, they do not need the colorful petals. They rely on wind to carry their pollen from their anthers to their stigmas (pollination).</u>

Hence, the correct option is C.

6 0
3 years ago
Marie's pulse, breathing rate, and mental alertness have suddenly increased. it is likely that marie is experiencing the:
NISA [10]
Marie is experiencing the: Sympathomimetic effects (fight-or-flight state).

The sympathetic nervous system is a component of the autonomic nervous system, managing the activity of visceral organs and the automatic functions of the body, such as breathing or beating of the heart. The sympathetic nervous system is involved in many unconscious physiological activities through two neuromodulators of the catecholamine family: adrenaline, but especially norepinephrine (fight-or-flight hormones).
* It accelerates the metabolism and is activated for example in case of danger or fear, to prepare the individual to escape.
* It affects the cardiovascular system: it increases the heart rate and induces peripheral vasoconstriction, causing an increase in blood pressure.
* At the digestive level, it slows the muscular contractions of the intestines but promotes the release of glucose by the liver.
* It also has a bronchodilator effect, that is to say, it causes the increase of the diameter of the bronchi.
5 0
2 years ago
Why is 4 the correct answer to number eighteen ? Explain why and please answer this !!
swat32

because that is where the sperm divide to multiply

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3 years ago
Humans get their energy directly through
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Uh the answer is eating food.
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2 years ago
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Typically, roofs on houses in the tropics are white. What advantage does this provide to the inhabitants?
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The last one E is correct
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3 years ago
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