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julia-pushkina [17]
3 years ago
13

How do you use a dichotomous key to discover the scientific name of an organism

Biology
1 answer:
nordsb [41]3 years ago
6 0
You start by answering the first question on the list which tells you what to do from there. Pretend your animal was a bird, you might have a key like this:

Does this animal have wings?
yes                   go to question 2
no                    go to question 6

Then you just continue until the list doesn't say to do anything else. i.e.:

Is the animal feathered?
yes                  bird
no                    go to question 4

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This is false. DNA transcription is the first step in gene expression.
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What does it mean to selectively breed an organism?
vichka [17]
To us genetic-engineering and produce a genitivally modified species.

It's the procces of humans giving animal the characteristics they want.
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Movement of the chromosomes during anaphase would be most affected by a drug that
My name is Ann [436]

Answer:

The options are missing, the options are:

A) prevents the duplication of centrosomes. B) prevents nuclear envelope fragmentation C) prevents shortening of microtubules. D) prevents attachment of the microtubules to the kinetochore. E) prevents nucleosome formation

The answer is C

Explanation:

Cell division is a characteristics of all living cells. Whether meiosis or mitosis, the chromosomes separate in the Anaphase stage. Prior to the anaphase stage is the metaphase, where spindle microtubules attach to the kinetochores of each chromosome and aligns them at the centre of the cell called METAPHASE PLATE.

Thus, since the aligning of chromosomes at the metaphase plate has to do with attachment of microtubules to chromosomes' kinetochores, the drug that will hinder movement of chromosomes to opposite poles will not stop formation of microtubules. Instead, it will prevent the formed microtubules attached to each chromosome from shortening, as it is the shortening of microtubules that facilitates the pulling apart of the chromosomes they are attached to.

4 0
3 years ago
Which cell structure serves the stated function in both eukaryotic and prokaryotic cells?
kotykmax [81]

Answer:

Cytoplasm

Explanation:

4 0
3 years ago
Which of the following is used as evidence to show changes in living organisms throughout geologic time?
Vadim26 [7]

I believe your answer would be:

A. Fossils.

Explanation:

Because they are the preserved remains or traces of animals, plants, and other organisms from the past. They're also important evidence for evolution because they show that life on earth was once different from life found on earth today.

Hope I helped, good luck! =)

4 0
3 years ago
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