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3 years ago

Which is characterized by an absence of jaws? Lamprey Trout Sea horse

Biology

2 answers:

vladimir2022 [97]3 years ago

6 0

Its a sea horse, Hope this helped

34kurt3 years ago

3 0

Answer:

the answer is B

Explanation:

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Visit your home and search for living and nonliving things

Andreas93 [3]

In a home, living things include microorganisms (e.g., bacteria), pets and humans, whereas non-living things may include water, viruses, etc.

<h3>What is a living thing?</h3>

A living thing is any biological system composed of cells, which are the fundamental unit of life.

Viruses do not have cells and therefore they can be considered non-living parasitic entities, whereas abiotic factors such as water are also considered non living things.

In conclusion, living things include microorganisms and humans, whereas non-living things include water.

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2 years ago

This is a molecule of glucose, a simple carbohydrate. If this molecule were broken down, would it provide all of the elements ne

Bingel [31]

No, it wouldn't provide all the elements needed to assemble lipids, nucleic acids or proteins.

As in the diagram, the breakdown of glucose molecules will release hydrogen, carbon and oxygen.

As we know that Carbohydrates and lipids are made of only carbon, hydrogen, and oxygen (CHO). Proteins are made of carbon, hydrogen, oxygen, and nitrogen (CHON).

Biomolecules contain elements like carbon, nitrogen, hydrogen, oxygen, sulfur, and phosphorus. Among these carbon, nitrogen and hydrogen are found in all biomolecules. Hydrolysis reactions use water to breakdown polymers into monomers, Hydrolysis reactions break bonds and release energy.

To learn more about Biomolecules , here

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1 year ago

Enkephalins and endorphins are peptides that act like morphine. True or False

mariarad [96]

Answer:

True.

Explanation:

Enkephalins and endorphins are endogenous peptides while morphine is an exogenous peptide.

Enkephalins and endorphins are powerful analgesics 18 to 500 times more than morphine. Hence, morphine is less analgesic than enkephalins and endorphins.

Enkephalins and endorphins act on the mu, kappa , delta receptors and morphine also acts on the same receptors. All of them has same effects on the body.

Hence, Enkephalins and endorphins are peptides that act like morphine.

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4 years ago

Read 2 more answers

What are the three parts of the modern cell theory?

Rus_ich [418]

Explanation:

The classical cell theory was proposed by Theodor Schwann in 1839. There are three parts to this theory. The first part states that all organisms are made of cells. The second part states that cells are the basic units of life. These parts were based on a conclusion made by Schwann and Matthias Schleiden in 1838, after comparing their observations of plant and animal cells. The third part, which asserts that cells come from preexisting cells that have multiplied, was described by Rudolf Virchow in 1858, when he stated omnis cellula e cellula (all cells come from cells).

Since the formation of classical cell theory, technology has improved, allowing for more detailed observations that have led to new discoveries about cells. These findings led to the formation of the modern cell theory, which has three main additions: first, that DNA is passed between cells during cell division; second, that the cells of all organisms within a similar species are mostly the same, both structurally and chemically; and finally, that energy flow occurs within cells.

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2 years ago

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Living organisms have a role in weathering and erosion in the ecosystem. Which statement describes the role of bacteria and fung

Mashutka [201]

Answer:

the answer is b

Explanation:

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3 years ago