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Anvisha [2.4K]
1 year ago
8

what is a mass extinction? what is a mass extinction? an event that causes the extinction of a large fraction of earth's species

an extinction caused by the impact of a massive asteroid or comet an event that causes most, but not all, of the population of various species to die an event in which the largest of earth's species go extinct
Biology
1 answer:
sineoko [7]1 year ago
8 0

A mass extinction event occurs when a species disappears far more quickly than it is replaced. This is typically understood as the loss of around 75% of all species over a "short" period of geological time, or fewer than 2.8 million years.

An enormous number of species were wiped out by a harsh, worldwide, swift, and selective event is mass extinction. According to marine fossils, at least 75% of all species are thought to have become extinct. The most recent mass extinction is the Cretaceous-Paleogene extinction event, which is also the only one that can be proven to have been caused by a significant asteroid impact. All non-avian dinosaur species, making up about 76 percent of all species on the earth, perished during mass extinction. The Chicxulub asteroid impact in what is now Mexico, which occurred 66 million years ago, caused an ecosystem collapse that resulted in the extinction of the dinosaurs and >75% of all land and sea species as well as the macroevolution of mammals.

Learn more about mass extinction

brainly.com/question/11872946

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IF A CUBE IS 1CM ON A SIDE, CALCULATE ITS SURFACE AREA. HINT WRITE 2 points
frosja888 [35]

Answer:

Surface area of the cube = 6cm²

Volume of the cube = 1cm³

Explanation:

The surface area of a cube, which refers to the sum of all the areas of the faces of the cube can be calculated using the formula:

S.A = 6 × a²

That is; a² + a² + a² + a² + a² + a²

Where;

a = length of a side of a cube

a² = area of one side of a cube

Note that, a cube has 6 faces

According to this question, a cube has a length of 1cm on each side.

Hence, S.A = 6 × 1²

S.A = 6 × 1

S.A = 6cm²

Volume of the cube can be calculated using the formula: a³

Where a = 1

Volume = 1 × 1 × 1

Volume = 1cm³

7 0
2 years ago
Most soils primarily form on what
Nady [450]
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8 0
3 years ago
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Karolina [17]
<h2><u>Answer:</u></h2><h3><u>Question 1:</u></h3>

The correct option is A (a curved path)

Explanation:

Their way is diverted by the revolution of the earth. This is the Coriolis impact. This is the motivation behind why wind streams on the northern side (north half of the globe) turn counter-clockwise and that blows south of the equator, the southern side of the equator, turn clockwise.

<h3><u>Question 2:</u></h3>

The correct option is B (forms at or near the ground)

Explanation:

Fog is an obvious vaporized comprising of modest water beads or ice precious stones suspended noticeable all around at or close to the Earth's surface.

Haze can be viewed as a sort of low-lying cloud, more often than not taking after stratus, and is vigorously impacted by adjacent waterways, geology, and wind conditions.

5 0
3 years ago
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nata0808 [166]
I hope this can help some.

8 0
2 years ago
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Color blindness is a recessive trait. The gene for color blindness is on the X-
Rasek [7]

Answer:

She has two recessive color blindness alleles.

Explanation:

The expression of arecessive phenotype requires both X chromosomes of the female to each contain a recessive color blindness allele. This genotype would the determine the mother would be color blind.

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