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3 years ago

Examples of living components in a river ecosystem

1 answer:

4 0

Living components in a river ecosystem would include all plants, all animals, all microorganisms. Every fish species, every arthropod species, every reptile and amphibian species, all the birds, etc.

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How do the pollutants that cause acid rain get into the air?

Kazeer [188]

For example driving cars, they release nitrogen and sulfur in the water vapor. This causes the water vapor to be more acidic. So then When the precipitation falls back to the Earth it comes down as acid rain.

7 0

3 years ago

The seven-spotted cockroach is a nocturnal species that burrows under leaf litter during the day.

djyliett [7]

Answer: C. is less likely to be eaten by a predator.

Explanation:

The adult seven-spotted cockroach is the prey of various other insects including beetles so mimicking the pattern of a beetle would send a message that it is a beetle and because the chemical irritant that the beetle has makes it get avoided by others, the cockroach gets avoided by other insects too who don't want to be sprayed.

Of course this does not always work but it works for the most part and ensures the cockroach's survival.

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3 years ago

The body makes molecules that can help to destroy harmful viruses and bacteria. These are called

Fiesta28 [93]

The answer would be antibodies

7 0

3 years ago

Read 2 more answers

Distinguish between major classes of biomolecules, proteins, lipids, carbohydrates, nucleic acids?

olasank [31]

Answer:

Proteins (polymers of amino acids)

Carbohydrates (polymers of sugars)

Lipids (polymers of lipid monomers)

Nucleic acids (DNA and RNA; polymers of nucleotides)

Explanation:

Proteins:

Chemical formula is CHON

−NH2 + −COOH +R group

Monomer is Amino acids.

Examples are enzymes, and some hormones.

Uses are Storage; Signals; Structural; Contractile; Defensive; Enzyme; Transport; Receptors.

Lipids:

Chemical formula is C:H:O

Greater than 2:1 H:O (carboxyl group)

Monomer is fatty acid and glycerol.

Examples are butter, oil, cholesterol, beeswax.

Functions are energy storage; Protection; Chemical messengers; Repel water.

Carbohydrates:

Chemical formula is C:H:O

1:2:1

Monomer is monosaccharides.

Examples are Glucose, Fructose, Starch, Glycogen, Cellulose.

Uses are energy storage; structure.

Nucleic Acids:

Chemical formula is CHONP

(pentose, nitrogenous base, phosphate ).

Monomer is nucleotides.

Examples are DNA, RNA.

Uses are Genetic information

5 0

3 years ago

Read 2 more answers

The density of ice is actually less than that of liquid water above 4c explain why

Olenka [21]

Water expands as it freezes, so ice generally has more oxygen in it than liquid water, making it denser.

6 0

3 years ago