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Lerok [7]
3 years ago
5

Look at the DNA segment below. GATCGT Which of the segments below would be complementary to the segment above during DNA replica

tion?
Biology
1 answer:
miss Akunina [59]3 years ago
5 0

Answer:

CTAGCA

Explanation:

During DNA replication, the DNA double helix is unwound by DNA helices. Each original strand is then used as a template,  by the DNA polymerase, to synthesize a new strand. Base pairing rules apply in the synthesis. Cytosine pairs with Guanine while Adenine pairs with Thiamine.

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3 years ago
Internal respiration refers to: a) atmospheric air coming into the lungs. b) gas exchange between the lungs and the blood. c) ga
labwork [276]

Answer:B

Explanation:

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3 0
4 years ago
Read 2 more answers
Use the normal ecg trace below to determine how many seconds the trace represents as well as the heart rate.
mezya [45]
Attached is the image of the concerned ECG reading.

In reading the ECG, first you read the heart rate. To read the heart rate, you must count for the number of small boxes in between QRS complexes, specifically R-R intervals. These number of small boxes will then be used to divide 1500. In this example, there are 20 small boxes between R-R intervals. 1500 divided by 20 is 75, so the heart rate of this ECG reading is 75 beats per minute. 

<em>Another way, albeit less accurate, is to count the big squares between R-R intervals and instead of dividing it by 1500, you divide it by 300.</em>

3 0
3 years ago
Which of the following is not a characteristic of pioneer species ?
Irina-Kira [14]

Answer:

They remain in an environment,even as more competitive species arrive

Explanation:

Pioneer species, in ecological succession, are the first set of organisms to colonize a bare area of land or a disturbed area of land. Pioneer species include lichens, grasses, fungi etc.

Pioneer species have unique characteristics that distinguishes them from every other species of organism. These include:

- They facilitate environmental change, making an environment more habitable for other species.

- They tolerate a wide range of environmental conditions.

- They are capable of colonizing a barren environment, as in primary succession.

However, pioneer species do not remain in an environment, even as more competitive species arrive. They rather give way for new species to emerge and dominate.

3 0
3 years ago
Choose all of the following that are examples of SECONDARY SUCCESSION? a. wild fire b. volcanic eruption c. glacier melting d. f
inn [45]

Answer:

i think it would be A for wild fire, D for flood and E for Tsunami

Explanation: wild fire are one of the most common ways for a secondary succession that can bring change when the environment is disturbed or damaged. For instance, by allowing fast-growing plants to grow and provide a source of food and shelter for many animals to use and eventually draw them back into the ecosystem. Both flooding and tsunamis help push older organisms and other stuff from the environment to create for room for other plants and animals to come and keep the ecosystem healthy and ongoing.

i hope this can help you with your work mate!

8 0
3 years ago
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