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Zolol [24]
3 years ago
10

A healthy adult heart beats about____times per minute. Children's heartbeats are faster, around 100-120 bpm.

Biology
1 answer:
liubo4ka [24]3 years ago
7 0
The answer would be c
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During a ________ moon, we see one whole side of the Moon here on Earth.
Vinil7 [7]
The answer is Crescent. 
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3 years ago
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Plant hormonal regulation differs from animal hormonal regulation in that _____. plant hormonal regulation differs from animal h
Pani-rosa [81]
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3 years ago
The central nervous system consists of the brain and the ________.
Anton [14]

Answer:The answer is spinal cord

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3 years ago
Reptiles are better suited to dry land than their amphibian ancestors because
Vaselesa [24]

Answer:

<u><em>All of the above.</em></u>

Explanation:

1. Their watertight skin minimizes moistures loss: <em>Reptiles have a reputation that they are “slimy” when we touch and hold them; however, they have dry skin, which has even fewer glands than mammals or amphibians. The main special feature of their skin is that the epidermis is heavily keratinized with a layer, which also prevents water loss.</em>

2. Amphibians must lay eggs in water or in moist soil to reduce moisture loss: <em>Because amphibian eggs don't have an amnion, the eggs would dry out if they were laid on the land, so amphibians lay their eggs in water.</em>

3. Reptile egg shells are harder than amphibians' eggs: <em>Reptile eggs are coated with a leathery or brittle coating, and the animals that hatch from them are miniature versions of the full-sized animal parent. In contrast, amphibian eggs are transparent and jelly-like. The animals that hatch from them still must go through metamorphosis.</em>

<u><em>Hope this helps you have a better understanding:) !!</em></u>

7 0
2 years ago
How do geologists know that earths core is made up of two parts ,please answer as soon as possible that would be great :)
Gnesinka [82]
They drill holes and bring up samples of rock and study how seismic wave move through the earth.
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