1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
FinnZ [79.3K]
3 years ago
8

Which two types of matter are chemical pure substances

Biology
1 answer:
Leya [2.2K]3 years ago
6 0

Answer:

element and compund

Explanation:

an element is the most basic substance that cannot be decomposed into anything simpler

an compound is a substance that is formed when two or more elements combine in constant ratio chemically

You might be interested in
Explain why sexually reproducing organisms need to have two different types of cell division. What are the advantages of mitosis
VashaNatasha [74]
<span>Mitosis creates identical copies of the original cells. </span>
4 0
3 years ago
Read 2 more answers
A sample of rock is found to contain 100 grams of a parent isotope. How many grams of the parent isotope will remain after two h
Alja [10]
The answer is 50. I really hope this helps.
7 0
3 years ago
Read 2 more answers
Blood is a tissue because it is made up of different types of specialized cells.
Kruka [31]
Plasma, water, salt, protein, platelets
5 0
3 years ago
Read 2 more answers
Careful study of commonalities among different organisms suggests that all life on Earth Careful study of commonalities among di
Bingel [31]

Answer:

Yes.

Explanation:

Yes, all life on Earth depends on sunlight for obtaining energy and also shares a common ancestor of all organisms that lives on the land surface or in the oceans.  Sun is the major source of energy through which plants produces food for itself and for other organisms. All the organisms have common ancestors which evolved with the passage of time when the change occurs in the environment and is responsible for the diversity of organisms.

6 0
2 years ago
You track aquatic coastal levels of nitrogen and phosphorus at high latitudes and notice a sharp increase in the winter and then
nordsb [41]

Answer:

A considerable increase in phytoplankton populations in winter, and a greater increase in spring due to increase in light intensity.

Explanation:

Nitrogen and phosphorus are important nutrients required by phytoplankton populations. The growth of phytoplankton populations is dependent on the level of the availability of Nitrogen and Phosphorus in the presence of sunlight.

A rise in the aquatic coastal levels of nitrogen and phosphorus would result in a great increase in phytoplankton populations in spring, as stimulated by nutrient enrichment coupled with the availability of sunlight during spring. Phytoplankton populations would increase also in winter but not as high when compared to the rise in population in spring

3 0
3 years ago
Other questions:
  • The elevation of the metabolic rate that occurs after ingestion of a meal is
    15·1 answer
  • Because of the relatively high altitude of Antonito, Colorado, the town has a normal barometric pressure of about 600 mm Hg rath
    7·2 answers
  • The therapeutic effect of insulin in treating type 1 diabetes mellitus is based on which physiologic action
    5·1 answer
  • The mantle of the moon Select one: a. is composed of two layers. b. may have high levels of iron. c. contains the mineral olivin
    11·1 answer
  • Please I need help! What effect do enzymes have on biochemical reactions?
    9·1 answer
  • If 2 heterozygous pea plants with yellow round seeds are crossed, what is the ratio of the yellow round seed?
    15·1 answer
  • Please follow me and thank my answers​
    9·2 answers
  • Which of these occurs in sexual reproduction but not in asexual reproduction?
    13·1 answer
  • The fossils that scientists find and study today formed thousands to millions of years ago. But, you can simulate the process of
    12·2 answers
  • Why does the moon appear to change shapes in the sky?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!