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Over [174]
3 years ago
14

Receptor molecules on the surface of cells bind specific molecules called, in general, __________

Biology
1 answer:
Vladimir [108]3 years ago
8 0

Answer:

Receptor molecules on the surface of cells bind specific molecules called, in general, ligands.

Explanation:

These ligands can be hormones or different signaling molecules.

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Match each compound with the complex it inhibits. 1) rotenone A) complex IV 2) CO B) complex III 3) antimycin C) complex I 4) cy
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Answer:

1:C; 2:A; 3:B; 4:A; 5:C  is the right answer.

Explanation:

1) rotenone ------------------C) complex I

2) CO -------------------------A) complex IV

3) antimycin -----------------B) complex III

4) cyanide ------------------A) complex IV  

5) amytal ---------------------C) complex I

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3 years ago
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Please help ASAP! Describe at least one way in which each of Earth’s subsystems was altered during the Precambrian era.
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The Precambrian era envelopes the major bulk of the history of the Earth, beginning from the creation of the planet approx 4.5 billion years ago and terminating with the origination of composite, multicelled forms of life approximately 4 billion years after.

The Precambrian refers to the earliest of the geologic ages that are signified by the distinct layers of sedimentary rock. The Earth was about more than six hundred million years old when life started. The planet had cooled down from its native molten state, creating a solid crust and oceans formed by water vapor in the atmosphere.

At about three billion years ago, the atmosphere of the Earth was virtually devoid of oxygen. At approximately 2.4 billion years ago, oxygen was discharged from the seas as a waste product of photosynthesis by cyanobacteria. The levels of the gas slowly raised, attaining about 1 percent around two billion years ago.

Approximately 800 million years ago, the levels of oxygen attained about 21 percent and started to breathe life into more composite species. The oxygen-rich ozone layer was also created, protecting the surface of the Earth from the harmful solar radiation.


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4 years ago
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DNA can make exact copies of itself through replication because the nitrogen bases ALWAYS pair
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The answer is a-t and c-g
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In this tectonic situation seen here, the Pacific plate has been grinding horizontally past the North American plate for over te
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C) transform

Explanation:

The San Andreas fault is a transform fault margin as a result of the Pacific plate moving horizontally with the North American plate.

There  are different types of plate interactions.

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The San Andreas is one of those margins in which plates moves past one another horizontally. This is a typical transform margin resulting in series of earthquake activities on the surface.

Learn more:

lithosphere brainly.com/question/9582362

#learnwithBrainly

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3 years ago
Good short ANOLOGIES cell membrane
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Thin, flexible barrier around a cell; regulates what enters and leaves the cell
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