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Debora [2.8K]
3 years ago
15

Bicuspid valve prevents backflow into

Biology
1 answer:
kherson [118]3 years ago
3 0

Are there any answer choices?.....

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Did the predators prey on the two variations of moths equally?
marshall27 [118]

Answer:

This is true.

Explanation:

I did the test.

7 0
2 years ago
You have a 15kb plasmid. EcoRI cuts the plasmid into 7kb and 8kb pieces, and BamHI cuts the plasmid into 1kb and 14kb pieces. If
Harman [31]

Answer:

a. Bands at 1kb, 6kb and 8kb

Explanation:

The EcoRI and BamHI are the restriction enzymes which cut the DNA sequence especially a plasmid at specific sites called the restriction sites.

The restriction enzymes produces bands of specific length therefore these restriction enzymes are used to estimate the approximate length of the DNA.

In the given question, the

1. EcoRI- produces two strands of 7 kb and 8 kb

2. BamHI- produces two strands of 1kb and 14kb

This shows that the length of DNA sequence is 15kb

But when the DNA strand are digested with both the enzymes simultaneously then it will produce three bands as:

i) 14 kb can be broken down in 2 bands of 6 kb and 8 kb

ii) 1 kb band is already produced by the Bam HI.

This shows that 1+6+8= 15 kb

Thus, Option-A is correct.

5 0
3 years ago
Drag the tiles to the correct boxes to complete the pairs.
Ulleksa [173]

bottleneck effect --- > A disease wipes out almost 90% of a population of birds, but the species adapts, and after 5 years its numbers increase dramatically.


gene flow --->  A population of rats travels on a cargo ship and mate with rats in a new region.


founder effect ---> Biologists introduce a small population of lizards on an island as part of a conservation effort.



mutation ---> A change in a DNA sequence causes a lizard to develop a darker skin color, which helps it hide from predators.


7 0
3 years ago
Read 2 more answers
4. What was the “basic idea” about matter that Leucippus and Democritus proposed?
topjm [15]
Democritus is a Greek theorist that believes that atom is the smallest part of the substance. Atom, as he defined, is an indivisible entity. Leuccipus was Democritus' teacher who also believed on that notion. All matter are made up of atoms. If atoms are intact, the property of the substance is firm and solid while if the atoms are much apart, it would be described as a gas. Aristotle had a different belief of matter. He believed that the composing entities of matter are the four elements. However, this notion was rejected and proven through scientific inquiries about atoms and subatomic particles
8 0
3 years ago
Which formula can be used to find the tangential speed of an orbiting object?
Sav [38]
 V₍t₎ = 2πr/t  

time is taken
7 0
3 years ago
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