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Sever21 [200]
3 years ago
7

What are three ways that substances can be described?​

Biology
1 answer:
Margaret [11]3 years ago
7 0

Answer:

chemical name, for example, benzene;

number, for example, EC number 200-753-7, and.

chemical composition, for example, >99 % benzene and <1 % toluene. The composition is determined by chemical analysis.

Explanation:

hope thishelps!

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Water is essential for the growth of crop plants. But excessive supply of water should be avoided. Give reason.
Ira Lisetskai [31]

Answer:

Soil can become waterlogged. The water can cut off the air supply to the roots and to the organisms that live in the soil. If the roots do not receive enough oxygen, the plants will die because they rely on oxygen to complete photosynthesis.

Explanation:

7 0
3 years ago
Read 2 more answers
A typical bag of fertilizer contains high levels of nitrogen, phosphorus, and potassium but trace amounts of magnesium and calci
Deffense [45]

Answer:

This question is incomplete as it lacks options. The options are:

A) Nitrogen will be incorporated into nucleic acids.

B) Phosphorus will be incorporated into amino acids.

C) Potassium will be incorporated into lipids.

D) Magnesium will be incorporated into carbohydrates.

The answer is A. Nitrogen will be incorporated into nucleic acids.

Explanation:

Fertilizers serve as external source of nutrients as they contain certain elements necessary for the build up of biomolecules in living organisms. According to this question, the bag of fertilizer contains the following elemental components: nitrogen, phosphorus, potassium, magnesium and calcium.

These elemental components of the fertilizer will be incorporated by organisms and used to build biomolecules in their systems. The four biomolecules are carbohydrate, proteins, lipids and nucleic acid. NUCLEIC ACID is a complex biomolecule made up of simpler NUCLEOTIDE subunits. Each nucleotide is made up of a pentose sugar, phosphate group and NITROGENOUS BASE.

NITROGENOUS BASE is a base which principally contains NITROGEN in the core of its structure. Hence, nitrogen element is a vital component necessary for the formation of nucleic acids. Therefore, Nitrogen component of the fertilizer will be incorporated into nucleic acids of organisms in the area.

6 0
3 years ago
The organelle is what part of the cell
frozen [14]

Answer:

cell wall

Explanation:

if its not one of the options sorry!

5 0
3 years ago
What are 5 main chemicals that make all living things?
cupoosta [38]
Carbon
Hydrogen
Nitrogen
Oxygen
Phosphorus

3 0
3 years ago
Which statement is true about cellular respiration?
PIT_PIT [208]

Answer:

I think b.

Explanation:

Cellular respiration uses glucose and oxygen to form co2.

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