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3 years ago

What are the characteristics of supernovae?

2 answers:

5 0

Ans: 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. The sun is a single star, but it does not have enough mass to become a supernova.

Veseljchak [2.6K]3 years ago

4 0

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. The sun is a single star, but it does not have enough mass to become a supernova.

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FIRST TO ANSWER IN DIFFERENT SENTENCES GETS BRAINLIEST

Rufina [12.5K]

Answer:

1.An example of Batesian mimicry is when the yummy viceroy butterfly mimics the orange and black coloration of the distasteful monarch butterfly. ... Wasmannian mimicry occurs when the mimic resembles it's host (the model) in order to live within the same nest or structure. For example, several beetles closely resemble ants

2.Orange and black Monarchs (Danaus plexippus) are among the most familiar and easily recognizable butterflies found in the vivarium. Bright colors and distinctive wing patterns can be an example of aposematism, also known as a warning coloration.

Explanation:

please mark me as the brainliest answer and please follow me for more answers to your questions

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2 years ago

What is secreted by the gastric mucous neck cells and pancreatic duct cells to neutralize stomach acid?

erik [133]

Answer:

Bio carbonate ions

Explanation:

The pancreas secrets an aqueous mixture ( water, digestive enzymes and bicarbonate ions) during digestion of food substances from the stomach into the duodenum to begin the process of absorption and assimilation.

The pancreatic duct are lined with duct cells. These are cells which secretes HCO3- ,into the aqueous mixture. This ion is basic. Therefore it neutralizes the acidity of the of the chyme to released from the stomach to enable the pancreatic enzyme to work.

The bicarbonate ions also prevent the walls of the pancreases from getting burnt by the effect if the acidity of the chyme.

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2 years ago

Which statement best describes the relationship between an allele and a gene?

lys-0071 [83]

A.) An allele is a version of a gene that can be expressed as a phenotype.

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2 years ago

The cell membrane contains channels and pumps that help move materials from 1 side to the other. What are these channels and pum

Anettt [7]

I believe proteins would be the correct answer, but of course I just learnt this stuff 2 weeks ago. xD

7 0

2 years ago

Read 2 more answers

Please provide the answer for the problem below.

Lera25 [3.4K]

Answer:

cell wall) function:protects and holds the structure of the cell

X for plant cell

chloroplast) absorbs energy from sun through photosyn. to make nutrients

plant cell-x

cytoplasm) a gel like substance in which most of the cell's processes take place

x for plant&animal

ER) packages & transports proteins made by ribosome to the golgi apparatus

GA) transports proteins to their destined location throughout the cell

found in plant and animal cells

Mitch) converts energy in nutrients to usable energy

found in plant and animal cell

nucleus: stores and protects DNA

found in plant and animal cells

vacuole: stores food and water

found in plant and animal cells

HOPE THIS HELPS

Explanation:

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3 years ago