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hjlf
2 years ago
14

The railroad superintendent Daniel McCallum used the model of a tree, with roots, trunk, branches, and leaves, to illustrate the

______.
Biology
1 answer:
yan [13]2 years ago
4 0

Answer:

Table of organization of the company.

Explanation:

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What are the five principal ocean basins on Earth?
timofeeve [1]

the Pacific, Atlantic, Indian, Southern, and Arctic.

I hope this helps please mark me as brainliest;)

3 0
2 years ago
Which statement is true about the elements of the earth? A. the earth element stays in the same area of the lithosphere, hydrosp
Softa [21]
Your answer would be A. The earth element stays in the same area of the lithosphere, hydrosphere, or atmosphere where they originated when the earth was formed.
4 0
3 years ago
How does cholera coonnect with the concepts of cell to cell communication?
Advocard [28]
Cholera occurs when the G protein cannot hydrolyze GTP to GDP so the G protein is always active. This causes water and salt to leak out causing diarrhea and eventually death by dehydration.

Hope this helps!

-Payshence xoxo
8 0
3 years ago
I need help, I don't understand this, so please try to explain?
Vinvika [58]

Answer:

Yeah, so basically the image is showing restriction enzymes. The job of restriction enzymes is mainly involved in research when scientists use them for cloning human genes. But that's besides the point...

Main thing you have to understand is that restriction enzymes cut at very specific places along DNA sequences. If you look at the restriction enzyme Rsa 1, you can notice that it cuts only between a thymine nucleotide base and an adenine nucleotide base. Next, if ya look at Sty 1 (be careful b/c W can represent adenine or thymine), it cuts only between two directly adjacent cytosine nucleotide bases!

SO.... if we go to Rsa 1, we can find the answers by dividing up the sequences between the pattern we saw in the gray box. It only cuts between adenine and thymine bases. Based on that, we can find the number of fragments created, and the segment lengths (basically just like how many nucleotide bases are in each strand). Hope ya found this helpful!

3 0
3 years ago
How do the teeth of Old World monkeys and apes differ? a. Old World monkeys have a diastema, whereas apes do not. b. Old World m
kumpel [21]

Answer:

The correct answer is D: "<em>Apes have a Y-5 pattern of cusps, whereas Old World monkeys have a bilophodont pattern</em>".

Explanation:

Apes and old world monkeys only have four kinds of teeth: <em>two incisors, one canine, two premolars, and three molars</em>. This dental formula is 2.1.2.3.

The old world monkeys characterize for having molars with four cusps joined by ridges. They have bilophodont teeth with better crushing, shearing and wearing capabilities than apes.  

Apes´molars have 5 cusps, a Y-shaped space between those raised points, and no transverse lophs. These characteristics are known as the Y-5 pattern.

7 0
3 years ago
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