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Ad libitum [116K]
3 years ago
12

How was Christopher Columbus able to successfully follow a course west to the Americas without the help of an accurate map?

Biology
1 answer:
77julia77 [94]3 years ago
4 0
He had used a compass. I hope this helps!
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Viruses that replicate using the lysogenic cycle....
Eva8 [605]

Bacteriophages are viruses that infect and duplicate within a bacterium. Temperate phages (such as lambda phage) can keep reproducing using both the lytic and the lysogenic cycle.  

SO.... Bacteriophages  

I believe is the answer that you are looking .

Let me know if its right or wrong!!

7 0
3 years ago
3. Consider the technology behind each type of
Degger [83]

Answer:

See the answer below

Explanation:

<em>The light microscope uses visible light to produce images of objects on its slide while the electron microscope uses beams of electrons to project the image of specimens.  Color is a property of photons of light, hence, the light microscope is able to produce images of specimens in their natural colors </em>

<em>The areas of the specimen on an electron microscope in which the beams of electron pass through usually appear white while other areas appear black. Hence, the electron microscopes can only produce grayscale images of specimens unless a false color is added to make the images visually appealing.</em>

<em> </em>

8 0
3 years ago
Read 2 more answers
1. How does the number of chromosomes in a cell that results from meiosis compare to the number of chromosomes in the original c
gtnhenbr [62]

Explanation:

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5 0
2 years ago
Would mouth to mouth resuscitation between two fish work?
Nady [450]

I don't think it will work.

Fish breathe with gill not lungs. Unlike lungs, gill works one way. You breathe out air out of you mouth but fish dump the water from their gill so they shouldn't be able to push water out of their mouth.

Even if the could fish push the water through their mouth, the gas exchange didn't happen because the water didn't move through the gill. The fish that giving water cannot breathe while giving resuscitation.

4 0
3 years ago
Read 2 more answers
what is accepted by scientists as evidence for evolution? I. Similarities in bone structure between the wings of a bat and the f
Mandarinka [93]

Answer:

Options I and II

Explanation:

Evolution refers to the changes that occurs in the morphology, appearance and behavior of an organism over a due course of time. This changes occurs due to the natural selection method, where organisms undergoes changes and adapts to the newly habitable environment.

The above given options I and II are the evidences of evolution. The similarities in terms of bones and their defined structure between the bat wings and porpoise fins are signs of evolution that has taken place over a definite span of time. Also, the changes in the various breeds of dog that are caused by the artificial selection method is also an example of evolution.

Thus, the correct answers are options I and II.

6 0
3 years ago
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