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3 years ago

Which system eliminates wastes from the body?

Biology

2 answers:

jonny [76]3 years ago

4 0

Answer:

Excretory system

Explanation:

alexandr1967 [171]3 years ago

4 0

Answer: The excretory system.

Explanation: Excretion is a process by which an organism removes or eliminates waste products of metabolism from its body. Excretory system is a group of organs in the body to bring about the removal of waste products from the body. Every organism needs to get rid of the waste products of metabolism from its body cells because if not removed, accumulates and in high concentrations waste products becomes toxic to the body. In humans, the excretory system involves the kidney, the bladder, the urethra, the liver, lungs and skin.

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Four differences between viruses and bacteria

amid [387]

the main difference is that bacteria are free-living cells that can live inside or outside a body, while viruses are a non-living collection of molecules that need a host to survive.

Many bacteria help us: living in our gut digesting and helping absorption of our food, fixing nitrogen and decomposing organic materials in soil. Similarly, not all viruses are bad—we now know there are also beneficial viruses present in our gut, skin and blood that can kill undesirable bacteria and more dangerous viruses.

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2 years ago

DNA ___________ is important because it ensures that when a cell divides, the two resulting cells have the same genetic code. Pl

slega [8]

Answer: Replication

Explanation: When the cell is preparing to divide it will replicate its DNA so that both of the daughter cells will have a complete set of the DNA. It's like a book of instructions and the cell has to perfectly replicate it so that when it splits into two both of the new cells will have a perfectly made copy of it! Hope this helps :)

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2 years ago

What will happen to a population of organisms that are in an oxygen rich environment. (Double click the story board to draw on i

Dmitry_Shevchenko [17]

Answer:

it will disolve

Explanation:

6 0

2 years ago

What is the correct amino acid sequence for the mRNA code AUGCCAGUAUGA

dalvyx [7]

Answer:

UAC GGU CAU ACU

4 0

2 years ago

Which of the following does NOT characterize proteins?

8090 [49]

Answer:

The answer is C) They appear to be the molecular carriers of coded hereditary information.

Explanation:

Why NOT C) They appear to be the molecular carriers of coded hereditary information?

This is the job of the nucleic acids. It is composed of nucleotides which are the basic units of DNA and RNA. They carry genetic information about a certain organism.

<h3 /><h3>True of proteins:</h3>

A) They may be denatured or coagulated by heat or acidity.

Denaturation is the destruction of the protein's secondary and/or tertiary structures. The primary structure is not disrupted due to the tough peptide bonds and can only be broken down by acid. For heat denaturation, hydrogen bonds are destroyed, as in cooking of egg whites and medical equipment sterilization.

B) They have both functional and structural roles in the body.

There are many kinds of proteins that have functional and structural roles like hormones (FSH, LH), antibodies (IgA, IgM), enzymes (lipase, amylase), for storage/transport (hemoglobin, ferritin), and locomotion (actin, troponin).

D) Their function depends on their three-dimensional shape.

Just like hemoglobin, it's quaternary structure can carry 4 molecules of iron in one go. Enzymes are shaped accordingly to fit a specific substrate (lock-and-key model)

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3 years ago