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KonstantinChe [14]
2 years ago
15

What does a target cell require to respond to an extracellular signal molecule?

Biology
1 answer:
zaharov [31]2 years ago
7 0
A specific protein called a receptor
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Which theory best explains the present arrangement of continents, oceans, and landforms on Earth?
Pepsi [2]

The correct answer is:

Plate tectonic theory

I am an online student, this was a question on my quiz and I got it right.

You're welcome.

Also, to the member above me who also gave the correct answer, Good job!

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2 years ago
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makkiz [27]

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8 0
3 years ago
Give two examples of friction being a useful force
Grace [21]
Can start a fire( rubbing to rocks together) and friction is used when you hit the brakes on a car( the pad pushes down on the tire). Good luck!
8 0
3 years ago
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If one strand of DNA is CAGGTTACG, the opposite strand is
aliina [53]


The correct answer is a - GTCCAATGC

According to base pairing rules, in DNA G will always pair with C and A will always pair with T.

These letters represent nucleotides. Nucleotides are the building blocks of nucleic acids namely DNA and RNA.

A denotes the nucleotide called Adenine

C denotes the nucleotide called Cytosine

G denotes the nucleotide called  Guanine

T denotes the nucleotide called Thymine.

In RNA, there is slight difference in base pairing. Since RNA never has Thymine in its structure, the thymine has been replaced with Uracil.  Therefore in RNA,  Adenine will pair with Uracil.

3 0
3 years ago
What type of organism would most likely be found in place of the question marks?​
ruslelena [56]

Answer:

Decomposers

Explanation:

The diagram in this question illustrates a food web, which is a series of interlinked food chains in an ecosystem. In a food chain as depicted in the image, the arrows point to the organism that feeds on another organism. For example, an arrow is pointing from Idaho fescue to an Elk meaning that the elk will feed on that plant.

Different trophic levels constituting organisms exists in the food web including; producers (plants), primary consumers, secondary consumers, tertiary consumers etc. However, as observed in the image, a general arrow carrying along all the organism is pointing towards the organism in the question mark. This organism is called DECOMPOSER.

A decomposer, usually a microorganism, is an organism that breaks down dead organisms and returns the nutrient to the soil for recycling. All organisms in the food web will eventually die and when they do, they'll be decomposed by a decomposer. This is why the arrow pointing towards the decomposers include all organisms.

8 0
2 years ago
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