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IceJOKER [234]
3 years ago
11

Why does drool leave marks on paper

Biology
1 answer:
Lelechka [254]3 years ago
6 0
Because it's wet and its leaves a mark
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Which of the following biomolecules is best represented by this formula?
Alona [7]

Answer:

The correct answer is option D. "lipid".

Explanation:

Lipids, known also as fats or oils, are organic compounds that are insoluble in water and are made up of carbon, hydrogen, and oxygen. The formula of this question shows a biomolecule that is made up of this three atoms, and even though carbohydrate are made up of this three atoms as well, we can determine that it belongs to a lipid because it contains many more hydrogen atoms than oxygen atoms. Other characteristic of lipids is their long chains of carbon and hydrogen atoms, which are represented by the lines shown in blue. I attached the missing formula.

7 0
3 years ago
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What is the most popular means by which bacteria obtain food.
brilliants [131]
Most bacteria are heterotrophic decomposers, which means they depend on other organisms for food and feed on dead matter.
4 0
2 years ago
How family trees can be used by scientists​
Ket [755]

Answer:

Using statistics!

Explanation:

If the predecessors had genetically transmitted disease,or specific features,the family tree is useful in identification and better understanding.

6 0
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Opening and closing of the heart valves is caused by
storchak [24]

Answer:

The pressure differences on either side of the valve.

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The heart valves open and close passively because of pressure differences on either side of the valve. When pressure is greater behind the valve, the leaflets are blown open and the blood flows through the valve. However, when pressure is greater in front of the valve, the leaflets snap shut and blood flow is stopped.

Hope this helps!

have a blessed day

6 0
3 years ago
How many kingdoms are there in the domain eukarya?
inysia [295]

There is four kingdom in the domain eukarya.

Domain eukarya is made of eukaryote organism. Domain eukarya has 4 kingdom: Protista, Fungi, Plantae and Animalia. The member of Plantae is autotroph organism that has chlorophyll and capable of doing photosynthesis. Fungi has cell wall that made of chitin. Animalia doesn't have cell wall.

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3 years ago
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