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shepuryov [24]
3 years ago
8

The head makes up the largest percentage of body size _____ weeks after fertilization.

Biology
1 answer:
mariarad [96]3 years ago
4 0
The answer is 38 weeks which is D
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4

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Which ion most readily leaks across a neuron's membrane, helping to establish the resting potential? Which ion most readily leak
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Leak channels are the gated channels that randomly open and close. The plasma membranes have many more potassium ion (K+) leak channels than the leak channels for other ions such as sodium ion. Also, the potassium ion leak channels are leakier than the sodium leak channels and allow exit of more and more K+ from the neurons. This makes the inside the neuron negative at rest and outside becomes more positive. In this way, the leakage of K+ across the K+ leak channels is mainly responsible for maintaining the resting potential.

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4 years ago
Classify the sets of bones below as being part of the axial skeleton or the appendicular skeleton.
Tasya [4]

Answer:

Hello the correct answers are......

Classify the sets of bones below as being part of the axial skeleton or the appendicular skeleton.

✔ appendicular skeleton = hands and feet

✔ axial skeleton  = sternum

✔ axial skeleton  = skull

✔ appendicular skeleton = hips

✔ axial skeleton = ribs

✔ appendicular skeleton = shoulders

✔ appendicular skeleton  = arms and legs

<u>✔ axial skeleton</u>  = vertebral column

Explanation:

just took the test from edge

hope this helps :P

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The major evolutionary episode corresponding most closely in time with the formation of pangaea was the _____.
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The Permian Extinctions happened around 300 million years ago and lasted for around 15 million years. It eliminated over 95 percent of water life and 70 percent of species on land. It was one of the largest extinctions in the history of Earth.

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