GIVING BRAINLIEST How does a large mass star undergo a supernova?

1 answer:

Nutka1998 [239]3 years ago

8 0

Having too much matter causes the star to explode, resulting in a supernova. As the star runs out of nuclear fuel, some of its mass flows into its core. Eventually, the core is so heavy that it cannot withstand its own gravitational force. The core collapses, which results in the giant explosion of a supernova

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Draw a phylogenetic tree demonstrating the evolution of the multi-chambered heart in fish, amphibians, reptiles, mammals, and bi

RSB [31]

<h2>Multi-Chambered Heart </h2>

Explanation:

The four-chambered in warm blooded mammals like frog's have three chambered of heart.
Other warm-blooded creatures, consume a great deal of vitality and need a lot of oxygen.This change bears the turtle's body blood that is somewhat more extravagant in oxygen than the frog's.

Advantages of fish-

The heart doesn't require extra chambers past the initial two.
Fish and different creatures with 2-chambered hearts, along these lines, have less difficult circulatory frameworks than creatures with lungs and therefore, 3-and 4-chambered hearts.

Advantages of Amphibians-

The amphibians have a three chambered of the heart which to be very helpful to amphibians of land and water.

Advantages of Reptiles-

The reptiles have a three-chambered heart comprising of one ventricle and two atria.
The chamber called the correct chamber gets d<em>eoxygenated, or "spent," blood coming back from the body tissues. </em>

Advantages of Mammals-

The four-chambered heart of feathered mammals and well evolved creatures advanced freely from a three-chambered heart.

Advantages of Birds -

Birds like mammals , similar to vertebrates, have a 4-chambered heart (2 atria and 2 ventricles), with complete division of oxygenated and de-oxygenated blood.
The correct ventricle siphons blood to the lungs, while the left ventricle siphons blood to the remainder of the body.

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4 years ago

All of the following are true except?

PSYCHO15rus [73]

The 3rd one is wrong i believe

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Describe the overall structure of the DNA molecule.

slega [8]

Answer:

DNA is made up of molecules called nucleotide s. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). ... To fit inside cells, DNA is coiled tightly to form structures we call chromosomes.

Explanation:

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3 years ago

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Sladkaya [172]

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3 years ago

What phase of development gets its name from the greek word for “swelling”?

Yakvenalex [24]

The answer to this question would be embryonic phase.

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3 years ago