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Lilit [14]
3 years ago
9

What might make it hard for someone to use a dichotomous key? Make a list of possible reasons.

Biology
2 answers:
k0ka [10]3 years ago
8 0
Somethings that could make it difficult to use the dichotomous key would be if the two organism you were trying to use with it, look exactly alike. For example, you may be looking at two different types of pines with very, very small details that are different. Another thing would be if you couldn't see the small characteristics on your organism<span />
Vlad [161]3 years ago
3 0

The vocabulary is difficult.

The anatomical structures (dorsal, ventral) are not always easy to determine.

Some of the pictures did not show all aspects or key features of the organism.

Some specimens were very similar.

There were lots of questions and it seemed to take a long time to narrow them down.

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Fruit flies have eight pairs of chromosomes. Calculate the genetic possibilities from independent assortment of a zygote made fr
Furkat [3]

Answer:

256

Explanation:

If there are 2 pairs of chromosomes Aa and Bb, there are 4 possibilities for independent assortment of gametes:

A w B, aith with b, A with b and a with B.

If there are 3 pairs of chromosomes Aa, Bb and Cc, there are 8 possibilities:

ABC, abc, ABc, Abc, aBC, aBc, abC, AbC

This corresponds to 2^n, where n= the number of chromosomes.

Therefore, with 8 chromosomes, the possibilities are 2^8 = 256

This is for each parent.

8 0
3 years ago
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erica [24]
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3 years ago
How does the author communicate that the destruction of ash trees is similar to the destruct
Mrrafil [7]

Answer:

B

Because since they always kill the trees they invade by smothering them.

6 0
3 years ago
The ion primarily responsible for depolarization in pacemaker cells is ______________, whereas the ion primarily responsible for
snow_lady [41]
1. Calcium
2. Sodium

Hope this helps! :)
5 0
3 years ago
Which of the following is an organic molecule?
MAXImum [283]

Answer:

The correct answer is methane . Nature constitutes most of the substances made up of organic compounds. These compounds have carbon atoms attached with hydrogen atoms with a chemical bond (very few compounds may not have this bond).

6 0
3 years ago
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