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Artist 52 [7]
3 years ago
8

What hydrogen bonds are between adenine and thymine

Biology
1 answer:
masya89 [10]3 years ago
6 0

Answer:

Cytosine

Explanation:

Cytosine can form three hydrogen bonds with guanine, and adenine can form two hydrogen bonds with thymine.

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What the variable?
Amiraneli [1.4K]

Answer:

<h3>INDEPENDENT</h3>

Explanation:

Temperature is density- independent.

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2 years ago
Using your knowledge of organic molecules and the following experimental situation answer the next question. Experiment: A cello
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The answer should be A, inside the bag.

Permeable means allowing certain material to pass through. So if it's permeable to water and iodine, it means it can allow water and iodine to pass through the bag, but doesn't allow starch to go in.

Because iodine can pass through the bag, it can get into the bag filled with starch. But since starch couldn't diffuse out of the bag, the color change is only can be observed inside the bag. When no starch is gone out from the bag, there is no color reaction in the rest of the beaker.

So that answer is A.
4 0
2 years ago
.A small moth pollinates native trees when they bloom in April. Some of the moths emerge in early March and discover a different
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Answer:

The correct option is: A) sympatric speciation

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The common example of this speciation is insects like moths that become dependent on different plants belonging to the same geographical area.

8 0
2 years ago
How are biotic factors in the marine ecosystem responsible for bringing carbon-dioxide into the ocean?
Wewaii [24]

Answer:

Marine ecosystem have biotic organisms like phytoplankton and photosynthetic algae that do photosynthesis and converts the atmospheric carbon dioxide into organic matter most of the carbon dioxide is released when other organisms eat phytoplankton and release the carbon dioxide through respiration.

But some of the algae and phytoplanktons die naturally get down to the bottom of the ocean where they make carbon sink. Some organisms accumulate CO₂ in their exoskeleton that is made up of calcium carbonate.  

Therefore this use of carbon by living organisms in oceans brings carbon dioxide from the atmosphere to oceans. This is why the ocean plays a critical role in the carbon cycle and called carbon sink.

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