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
Snowcat [4.5K]
3 years ago
9

Litchen growing on rocks mechanical or chemical?

Biology
1 answer:
Minchanka [31]3 years ago
6 0
<span>They cause chemical weathering, releasing small quantities of organic acids which can dissolve limestone. This is sometimes referred to as biological weathering.</span>
You might be interested in
Help: explain how sunlight is the primary source of energy for the life of a bear...
photoshop1234 [79]
Bears eat plants such as berries, and plants get their energy from the sun. So his energy source's energy source is sunlight, which also makes it his energy source
4 0
3 years ago
A group of environmentalists were discussing the benefits and drawbacks associated with using fossil fuels. Which argument best
shepuryov [24]

Answer:

The correct answer is A. Fossil fuels are cheaper than alternative forms of energy

Explanation:

Fossil fuels are made from organic matter of dead animals and mainly plants  who were buried in the soil over hundred and thousand of years. We use fossil fuels because they are the best source to provide energy in the current time.

Fossil fuels are easily available and are present in very large amount which is the main reason for it to be cheaper. Fossil fuels like coal, petroleum or natural gas are more cheaper and efficient than alternative forms of energy like solar or wind energy.

But in future these fossil fuel will not be there and alternative forms of energy will become the primary and cheaper source of fuel.

5 0
3 years ago
Read 2 more answers
How do the hormones of the pancreas maintain homeostasis?
faust18 [17]
Hormones glucagon and insulin are produced in the alpha and beta cells respectively in the Islet of Langerhan in the pancreas. They are involved in the negative feedback system of blood glucose regulation in homeostasis.

GLUCAGON: when there is a low blood glucose concentration, the pancreas detect this and alpha cells produce and release glucagon. Glucagon causes the cells of the body to absorb less glucose from the blood. It also inhibits the process of converting glucose into glycogen (glycogenesis) and cause gluconeogenesis (process of converting amino acids/proteins and lipids/fats into glucose) and glycogenolysis (conversion of glycogen to glucose). Finally, glucagon decreases the rate of respiration so less glucose is required.

INSULIN: when blood glucose is high, insulin is released. Insulin binds with cell surface receptors of cells and activates the enzymes attached to the receptor. The enzymes cause a conformational change in the structural proteins that surround glucose transport protein containing vesicles, causing them to move out of the way so the vesicles migrate up to the cell membrane and glucose transport proteins can fuse with it. Thus, more glucose can be taken in by cells. Insulin also cause glycogenesis (converting glucose into glycogen) and inhibits gluconeogenesis and glycogenolysis.

Basically insulin decreases blood glucose concentration (eg. after eating) and glucagon increases it (eg. skipping breakfast in the morning)
6 0
3 years ago
How can use of fertilizers affect respiratory health?
nirvana33 [79]

Answer: C) They can contain contaminants that can enter the air during storms or high winds.

Explanation: A is wrong because I got it wrong (Sorry, can't give much explanation there).

B is wrong because water contamination does not directly relate to respiratory health.

D is wrong because fertilizers can impact respiratory health (Explanation seems lack-luster, but I feel like this is common sense).

Hope this helps :)

7 0
2 years ago
Read 2 more answers
Cameron performed a virtual lab on plant transpiration to determine the rates of environmental conditions; ranking them from the
IrinaVladis [17]

Answer:

C.)  Warm, Windy, Normal, and Humid

Explanation:

4 0
3 years ago
Other questions:
  • Amelia is working with two chemical solutions in her chemistry laboratory. Solution A neutralizes an acidic solution and solutio
    10·2 answers
  • Which of these statements is true concerning the usda animal welfare act?
    10·1 answer
  • Which hormone is largely responsible for women having wider hips than men?
    10·2 answers
  • Natural selection changes allele frequencies in populations because some ____ survive and reproduce more successfully than other
    6·1 answer
  • The nurse suctions a patient through the endotracheal tube for 20 seconds and observes dysrhythmias on the monitor. what does th
    8·1 answer
  • Which sphingolipids have a single monosaccharide as a component? g
    5·1 answer
  • What cells respond to an invading viruses that the body has already been vaccinated against?
    15·2 answers
  • Oping
    10·1 answer
  • PLEASE HELP !!<br><br> ILL GIVE 40 POINTS !<br><br> PLUS BRAINLIEST!!<br><br> NO LINKS OR FILES.
    15·1 answer
  • Why is neural migration important to brain functioning?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!