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Anna71 [15]
3 years ago
12

Evolutionary theories are supported by evidence of

Biology
1 answer:
enyata [817]3 years ago
3 0
A few example are
carbon/uranium dating
genetic variations 
similar bone structure among vastly different species. For example: the great blue whale was 2 hip bones and 2 femurs!
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What is the difference between good ‘seeing’ and good ‘transparency’? Give one condition for each.
iren [92.7K]

Answer:

Transparency is the <u><em>opacity of the atmosphere</em></u>, or how clear it is. Moisture and humidity lower the transparency, as does smoke or other kinds of pollution. It’s not entirely unlike light pollution in that it washes out the fainter details of astronomical targets. In fact, poor transparency typically makes light pollution worse because it scatters the light around instead of letting it escape into space away from your cameras and optics.

Transparency usually gets better with altitude, because you're looking through less air. That's why high altitudes are prized for observatories and star parties.

Transparency is also usually very good after a rainstorm has come through to clear all of the particulates out of the air. This is reason number one I figured my second friend had it right at the star party.

Seeing, on the other hand, is a measure of <u><em>atmospheric turbulence</em></u>. We know that if we take a photo of a fast-moving subject, such as at a sporting event, with a low shutter speed, we'll get a blurry image. So what happens when you have to take a very long dark-sky photo and the stars are jumping all about due to atmospheric turbulence? That’s right, blurry stars and deep sky objects.

Seeing is typically better in places where the geography is very flat. The air masses moving over the land encounter few obstacles and flow more smoothly (sometimes called a laminar flow). In Florida, the winds coming over the mountains gets all mixed up like a creek flowing over big boulders, which makes for terrible seeing.

HOPE IT HELPS

6 0
3 years ago
A plant reaches its adult stage when _____. it begins photosynthesis it is fertilized it is ready to reproduce the plant parts b
Papessa [141]

A plant reaches its adult stage when it is ready to reproduce.

 

The statement “All plants reproduce several times before dying” is true. The answer is letter A. Plants can reproduce several times as long as it has the gametes needed for reproduction.

4 0
3 years ago
When sperm and ovum unite at conception, a(n) __________ results. autosome gamete zygote allele?
frosja888 [35]

Answer;

-Zygote

When sperm and ovum unite at conception, a zygote results.

Explanation;

-Conception occurs when a sperm cell from a fertile man swims up through the vagina and into the uterus of a woman and joins with the woman's egg cell (ovum) as it travels down one of the Fallopian tubes from the ovary to the uterus.

-A zygote is the union of the sperm cell and the ovum. Also known as a fertilized ovum, the zygote begins as a single cell but divides rapidly in the days following fertilization. After this two-week period of cell division, the zygote eventually becomes an embryo.

3 0
4 years ago
Drag each circle to the correct location on the image. Each circle can be used more than once, but not all circles will be used.
Rina8888 [55]
Briefly, one can categorize the 3 types of boundaries as so: At convergent boundaries, the two tectonic plates are coming closer to each other; at divergent boundaries they are increasing they move away from each other and at transform boundaries the plates are moving parallel to their boundary. Based on this, all boundaries will be divergent boundaries.
8 0
4 years ago
1. If an organisms has a SPERM CELL with 4️⃣chromosomes. It will have____chromosomes in its SKIN CELL. *
Ksenya-84 [330]

Answer:

8 chromosomes in its skincell

Explanation:

Sex organ is (n)

Other than sex organ is 2(n)

4 0
3 years ago
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