Why must all living things excrete waste products?

Answers

Answer 1

Answer: Because they are unwanted or excess substances that the bodies of living organisms don't need.

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You and your body maintain homeostasis by
ASAP HELP ME PLSSS HERE ARE THE ANSWER KEYS LISTEN EM IN ORDER WITH THE QUESTIONS answer keys :reproductive immune skeletal lymphatic digestive muscular nervous Endocrine excretory respiratory circulatory integumentary
A viral genome is studied. It is composed of 33% Adenine, 28% Thymine, 22% Cytosine and 17% Guanine. Predict whether this genome is single or double stranded and whether it is DNA or RNA based.A) The genome is DNA based and single stranded. B) The genome is DNA based and double stranded. C) The genome is RNA based and single stranded. D) The genome is RNA based and double stranded.
Are microscopic and macroscopic ecosystems affected by limiting factors differently?

Heterotrophic organisms used the process of fermentation to nourish. What is fermentation? It is a chemical process that requires oxygen. It is a chemical process in which sugar molasses is ingested. It is a chemical process which enables heterotrophs to obtain energy without oxygen

Answers

It is a chemical process which enables heterotrophs to obtain energy without oxygen. Heterotrophic organisms undergo fermentation when oxygen is not available. The process converts carbohydrate (sugar or starch) into an acid or alcohol.

Which genotype belongs to an offspring that homozygous recessive for both traits

Answers

An individual who is homozygous recessive for two traits will have a genetoype with the general formula.

Question 1 All living organisms contain carbon atoms. Which of the following is an important characteristic of carbon?

Question 1 options:

Carbon atoms are highly reactive and form unstable bonds with any available atom.

Carbon atoms can bond with any other atom, but they cannot form bonds with other carbon atoms

Carbon atoms are very stable and do not easily form bonds with other atoms

Carbon atoms can bond with many other kinds of atoms to form very stable molecules.

Question 2
Any chemical that contains carbon bonded to at least one other atom, usually hydrogen, is known as a

Question 2 options:

Carbohydrate

Fatty Acid

Organic Molecule

Question 3
How many valence electrons are generally needed to fill the outer shell of most atoms?

Question 3 options:

4

6

8

Question 4
The macromolecules in biochemistry are proteins, carbohydrates, lipids and nucleic acids. What main elements do all of have in common?

Question 4 options:

Carbon and Sulfur

Carbon and Hydrogen

Oxygen and Nitrogen

Oxygen and Phosphorus

Answers

1. The correct answer is 4. Carbon can bond to 4 other atoms, exponentially increasing its ability to make different molecules.

2. The correct answer is 3. An organic compound (or molecule) is any atom (usually hydrogen) that bonds with carbon.

3. The correct answer is the third option (8 electrons). Valence electrons in the outer shell are those can form a chemical bond. When (most) atoms have 8 electrons in their outer shell, they are then considered to have maximum stability.

4. The correct answer is 2. These macromolecules all contain carbon and hydrogen, making them organic compounds.

1 - Carbon atoms can bond with many other kinds of atoms to form very stable molecules. 2 - organic molecules . 3 - 8 (full shell) . 4 - i'd say Carbon and Hydrogen

Name one type of cell that uses active transport

Answers

1)Endocytosis
2)Sodium Potassium Pump(cell membrane pump)
3)Exocytosis

hope it helps

sodium potassium pump

Shedding of the exoskeleton is calleda. molting.
b. bolting.
c. incision.
d. extrasensation

Answers

I think it is A. Molting

explain the role of the digestive system, the respiratory system and the urinary system in the removal of waste. how do these waste products relate to the 3 core resources?

Answers

The function of the digestive system is digestion and absorption.Digestion is the breakdown of food into small molecules, which are then absorbed into the body. The digestive system is divided into two major parts: The digestive tract (alimentary canal) is a continuous tube with two openings: the mouth and the anus.

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An example of something that is biodegradable is a leaf in a compost pile.a. True b. False