All of the following can cause weathering EXCEPT

What is salivary gland? tell its functions.

katen-ka-za [31]

Answer:

Parotid glands are the largest salivary gland. Each gland is approximately 6 cm long and 3-4 cm wide and can weigh up to 30 grams. They are located within each of our cheeks. In our oral cavity they are responsible for the secretion of about 20% of saliva. This saliva is known as serous i.e. more liquid and fluid. It helps in the first phase of the digestion of food, facilitate mastication "chewing". These glands secrete protein-rich fluid which is a suspension of alpha-amylase enzyme.

3 0

3 years ago

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DNA content in a cell is measured in picograms (pg) (what ever that is) . A sea star has 17/20 pg of DNA a scallop cell has 19/2

Kobotan [32]

This is not Biology, it's math. You have too do what you did on the other problems which is convert them all too decimals using a calculator. Make sure too write them down and them just find which number is more or less.

7 0

3 years ago

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Which best describes a disadvantage of this scenario?

Andre45 [30]

Answer:

Which best describes a disadvantage of this scenario?

Scientists have cloned goats so they can take out a

protein in the goats' milk and use it to make medicine.

The goats are raised in a laboratory. The medicine that

is produced can help with certain diseases that affect

humans.

O The goats will have more genetic variation

O The goats will become infected with the human

diseases.

There are unknown health risks to the goats.

O There could be many health risks to drinking the

goats' milkWhich best describes a disadvantage of this scenario?

Scientists have cloned goats so they can take out a

protein in the goats' milk and use it to make medicine.

The goats are raised in a laboratory. The medicine that

is produced can help with certain diseases that affect

humans.

O The goats will have more genetic variation

O The goats will become infected with the human

diseases.

There are unknown health risks to the goats.

O There could be many health risks to drinking the

goats' milkWhich best describes a disadvantage of this scenario?

Scientists have cloned goats so they can take out a

protein in the goats' milk and use it to make medicine.

The goats are raised in a laboratory. The medicine that

is produced can help with certain diseases that affect

humans.

O The goats will have more genetic variation

O The goats will become infected with the human

diseases.

There are unknown health risks to the goats.

O There could be many health risks to drinking the

goats' milk

Explanation:

8 0

3 years ago

Abiogenesis refers to how living organisms arose from inanimate matter. Place the sentences in order according to how life on Ea

horrorfan [7]

Answer:

(A) -> (D) -> (C) -> (B)

Explanation:

First off, given that the problem requires us to explain how life on Earth may have arisen <u>from terrestrial origins</u>, we can discard sentence (E), as impacts from meteorites would count as extraterrestrial origins.

Then it's just a matter of describing the steps by which simple compounds turned into more and more complex structures, that would in turn lead to the origin of life.

Simple inorganic compounds (such as CO₂, or NH₃) were exposed to energy, because of that they formed simple organic molecules, like carbohydrates or amino acids.

These organic molecules, in turn, would self-assemble into more complex structures, such as proteins.

Lastly, there's the phenomenon of Compartmentalization, where large organic structures became enclosed within a membrane-like structure, separating them from the 'outside' medium and thus creating primitive cells.

5 0

3 years ago

Which best describes a gamete?

Natalija [7]

The answer would be C. A haploid cell.

Gametes are haploid cells made by meiosis. Male and female gametes fuse together during fertilization and form the diploid zygote.

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3 years ago

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