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Talja [164]
3 years ago
10

What do theories hypothesize about the conditions of Earth's early atmosphere? Little to no oxygen Low levels of ultraviolet rad

iation Protective atmosphere Very cold temperatures
Biology
2 answers:
Nikolay [14]3 years ago
6 1

What do theories hypothesize about the conditions of Earth's early atmosphere? Little to no oxygen Low levels of ultraviolet radiation Protective atmosphere Very cold temperatures

nirvana33 [79]3 years ago
4 0

Answer:

Little to no oxygen

Explanation:

Little to no oxygen is a theory that hypothesize about the conditions of Earth's early atmosphere.

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Muscles work together as a system to help your body move while adding support.<br> True<br> False
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Answer:

true

Explanation:

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2 years ago
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In what two ways could a desert be found at 30°N?
ryzh [129]
All the deserts are found at 30<span>°N because


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5 0
3 years ago
In an experiment, the membrane potential of a neuron is hyperpolarized to –120 mV. When an inhibitory neurotransmitter is applie
denis-greek [22]

Answer:

The inhibitory transmitter activates ligand-gated potassium channels

Explanation:

When a cell is in hyperpolarized state,the potassium gated channels are taken longer time to close up, Therefore, more K+ leaks out of the axoplasm  to the exterior.Therefore the cell appears to continue in the resting state, with more negative value of the cell potential of (-120 mV) and this called hyperpolarization.

However, with the addition of  inhibitory transmitter,the ligand-gated potassium channels are activated,Theses channels closes up.Then sodium  gated channels, which  were initially in refractive state reopens, sodium ions diffuses inwards for depolarization, and the neuron returns to depolarized state.

3 0
3 years ago
Which of the following best describes a cladogram? 
KengaRu [80]
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5 0
3 years ago
The genetic analysis of Neanderthal bones indicates they
ikadub [295]

Answer:

The correct answer will be option-B.

Explanation:

<em>Homo neanderthelensis</em> or Neanderthals are the close relatives of the <em>Homo sapiens</em> or modern humans which became extinct around 10,000 years ago.

The Neanderthals and sapiens are the two related species of the same genus Homo but they showed distinct features like Neanderthals were muscular and shorter in height compared to the <em>Homo sapiens</em>. Recent fossils indicated that Neanderthals and<em> Homo sapiens</em> interbreed in some parts of the world as they were closely related to each other.

Thus, Option-B is the correct answer.

4 0
3 years ago
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