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2 years ago

Which one of the following does NOT describe a use of a scientific model?

Biology

1 answer:

Vinvika [58]2 years ago

3 0

Answer: what are the options?

Explanation:

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ANSWER ASAP PLEASE What impact do trees have on the food web?

kati45 [8]

Answer:

Abiotic factors such as latitude and temperature can impact biotic aspects of food web structure like the number of species, the number of links, as well as the proportion of basal or top species. These biotics factors can in turn influence network-structural aspects like connectance, omnivory levels or trophic level. In this way, plants make, or produce, the beginnings of most of the food energy on Earth. This is why plants are called producers. They use some of the food energy to carry out their own functions, and store the rest of the energy in their leaves, stems, roots and other parts.

Explanation:

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2 years ago

Read 2 more answers

What is science? State five aspects of science?

Arlecino [84]

Answer:

Explanation:

Science is the study of the nature and behaviour of natural things and the knowledge that we obtain about them. A science is a particular branch of science such as physics, chemistry, or biology. Physics is the best example of a science which has developed strong, abstract theories.

Five key descriptors for the scientific method are: empirical, replicable, provisional, objective and systematic.

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1 year ago

I need some biology help

kotykmax [81]

What is the question your trying to have answered?

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2 years ago

Blue green algae multicellular or unicellular

Ainat [17]

Answer:

Explanation:

Unicellular or multicellular, most cyanobacteria are a characteristic blue green, but can also be green, brown, yellow, black, or red.

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2 years ago

A complete plant gene containing four introns and five exons is carried on a 6.0-kb DNA fragment. DNA sequencing analysis finds

damaskus [11]

Answer and Explanation:

the total length of the gene is 6,000 base pairs (or) 6.0 kb and it has five exons, four introns and a 1,000 base pair length flanking region for the transcribed region.

Hence, each exon has (1500/5) = 300 by

each intron has (3500/4) = 875 by and

flanking segment (5' and 3') length for the transcribed region would be (1000/2) = 500 bp.

The gene segment is as shown in the 1st diagram attached below

In eukaryotes, transcription takes place in the nucleus which results in the synthesis of hnRNA (heteronuclear ribonucleic acid). This hnRNA (pre-RNA) has both introns and exons, however when it is synthesized or while it is being synthesized the Spliceosomal complex removes introns from hnRNA and becomes converted into mRNA (messenger RNA) in the nucleus itself.

(second diagram explains further)

Now the synthesized mRNA reaches the cytoplasm. So, if mRNA collected from the nucleus and cytoplasm will have the same length of about 2,500 base pairs only. Therefore, after the commencement of northern blot analysis both mRNA will yield the same kind of result and have unique length.

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2 years ago