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
Vadim26 [7]
3 years ago
8

Ill give a Brainliest if it is right

Biology
1 answer:
lukranit [14]3 years ago
4 0

Neither of these are minerals, B.

Its not A because, they are not natural materials but instead made up of natural materials, like a rubber tree.

Its not C because, like I said, plastic is made from rubber trees, this garentees it doesnt have a crystal structure.

Its not D because, concrete is not a mineral and has indefinite composition.

You might be interested in
Are mitochondria found in most animal cells? Explain
larisa [96]
Yes. Found in most animal cells and plant cells. It is responsible for cell respiration and the release or storage of energy in readily useable form.
3 0
4 years ago
Spirilla are bacteria that can cause _____.
ratelena [41]
C) syphilis

rat bite fever is also caused by this bacteria
5 0
4 years ago
Read 2 more answers
Macrophages digest the invading bacteria and viruses with the digestive enzymes found in cellular organelles called
Nataly_w [17]
Lysozyme which is found in the lysosomes. They function at a relatively low pH and are so because if they functioned at physiological pH they would digest the cell. But in this case, they are in the lysosomes where they are safe and at a lower pH so when the vesicles open they can emit hydrogen ions and the lysozyme to digest the foreign material.
6 0
3 years ago
Tropical areas receive the most solar radiation because
Sloan [31]

Answer;

A. the Sun's rays are nearly perpendicular to Earth's surface.

Explanation;

-Tropical region receives more solar radiation not only because the Sun’s rays hit the region more directly, but also because they travel through less of the atmosphere to get there.

-Some radiation is absorbed as it travels through the atmosphere, so less energy is lost in tropical regions.

7 0
3 years ago
Read 2 more answers
41) When blood pressure receptors sense a loss of blood pressure, they ________ their firing rate.A) increaseB) decrease
Murrr4er [49]

A I believe because the blood pressure always increases when you are stressed or something like that

7 0
3 years ago
Other questions:
  • How does changing the proteins produced in a cell alter what an organism does?
    8·1 answer
  • The commonly used acronym for the condition of joint pain due to wearing down of the articular cartilage, sometimes resulting in
    13·1 answer
  • Describe the changes that take place during the menstrual cycle from Day 5-13 to the following:
    9·1 answer
  • __________ provides a way that a version of a gene found on one chromosome can move onto the other chromosome.
    9·2 answers
  • The ratio of red blood cells to white cells in the human body is 700:1. If there are 3.5 million red blood cells in a microliter
    14·1 answer
  • Which of the following functions is the nucleus responsible for? (Choose all that apply)
    8·1 answer
  • What is science?
    7·1 answer
  • What is basal metabolic index​
    11·1 answer
  • During a latent infection caused by a virus, the viral replication is [blank] until some outside stimulant causes the virus to e
    13·2 answers
  • Which of the following is an example of evidence from comparative embryology that supports biological evolution?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!