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
Ilya [14]
3 years ago
8

In some national parks, controlled fires are maintained by firefighters. Which of these is one of the major reasons for using co

ntrolled burns to maintain certain ecosystems?
to allow the spread of insects that provide food for animals
to rid the forest floor of accumulated deadwood and brush
to give nonnative plants a chance to colonize the region
to replace mature plants with saplings of the same species
Biology
2 answers:
Murljashka [212]3 years ago
5 0

to rid the forest floor of accumulated deadwood and brush

Nata [24]3 years ago
3 0

Answer: to rid the forest floor of accumulated deadwood and brush

Explanation:

A fire can be a natural or induced limiting factor which is expected to reduce the growth, abundance and distribution of the population of species in an ecosystem.

In human induced fire certain regions of the forests are set on fire and in some regions which exhibit unwanted shrubs and grasses in control amounts to eradicate those shrubs and grasses.

On the basis of the above explanation, to rid the forest floor of accumulated deadwood and brush is the correct option.

You might be interested in
What is the difference between arbitrary and natural levels? Why do these matter? (4) how do archaeologists recover the smallest
Vlada [557]

Arbitrary level refers to the fundamental vertical subdivision of an excavation square, implied only when easily identifiable natural strata are absent and when natural strata are more than ten centimeters thick.  

Natural strata refer to a vertical subdivision of an excavation square, which is reliant on the natural breaks in the sediments in terms of grain size, color, hardness, texture, or other features.  

It is important to know the difference between the arbitrary and natural levels as arbitrary levels could amalgamate artifacts from distinct natural levels, that is, of distinct geologic contexts.  

The archaeologists can recover the smallest ecofacts and artifacts with the assistance of flotation, screening, and bulk matrix processing


5 0
3 years ago
Which of the following best describes the use of a renewable resource?
igor_vitrenko [27]

Answer: C. Water falls through openings in a dam turning turbine blades that generate electricity. Hope this helps, please rate Brainliest :)

Explanation: Renewable resources are resources that we can keep using without depleting the earths natural resources. Turbines and the waterfall are endless, not using up anything.

4 0
3 years ago
Read 2 more answers
What is the meaning of matter
Gala2k [10]
Matter is anything that has mass and occupies space. There are three different states of matter- solid, liquid, and gas.
7 0
3 years ago
Read 2 more answers
Which of the following statements is most correct regarding the intracellular chemical signals known as "second messengers"? Sel
Mila [183]

Answer:

Cyclic AMP and calcium may be second messengers.

Explanation:

these are signalling molecules that are located inside the cells,They are releases  when cells   are in contact with  signals from an extracellular molecule. the extracellular molecules that cause the chemical  reaction  in an external environment  in the second messenger are called first messenger.

<u>the basic mechanisms of second messenger involve the binding of ligands to the cell membrane receptors( usually a trans membrane protein).causing   conformational  change in the receptor protein. The latter change affect the structural and functional activities of the receptors protein with a consequent  production of second messenger,</u>

<u />

Response of the cells  to the first messenger my cause different form of cellular reactions; the cells may  undergo depolarization  with influx of out flux of ions, differentiate to specialized cells  or migrate to another location.

Examples of first messenger are hormones and neurotransmitters, while calcium ions, cyclic GMP,AMP, diaclyglycerol are examples of first messengers.

Most first messengers are peptide hormones.Some may be streroid, However, the hydrophilic nature of the peptide hormone restrict their movement, at the cell membranes. Therefore most first messengers made of  peptide  are first converted to second messenger to  bring about their signalling effects.The usually mark the beginning of cascade events by second messengers.

Second messengers are usually classified based on their polarity and molecular form this include the

<u> hydrophobic molecules</u> ;diacyglecerol,phosphatdylinotisols. These diffuse  through the membrane  into intramembrane space of cells cause signalling effects in the cell.

<u>the hydrophiliic  molecul</u>es  are  located in the cystol  of cells. Example are  Cylic AMP. GMP, Calcium,

N02, CO,H2S are <u>polar molecules</u> that easily diffuse into the cells to cause signalling effects, they are the third Classification of second messengers.

6 0
3 years ago
Read 2 more answers
When amino acids are degraded for energy or glucose production, their amine groups are incorporated by the liver into ____.
masya89 [10]

Answer:

The correct answer is - urea.

Explanation:

In our body, to produce energy or produce glucose our body breaks the amino acids, it gets from proteins mainly. These amino acids are mainly breakdown into amine groups.

The human body has a unique ability to pack ammonia(amine group) by converting it to urea and incorporated and produced by the liver using 2 molecules of ammonia (NH3) and 1 molecule of carbon dioxide (CO2).  This incorporated urea is then secreted from the liver and incorporated into the urine in the kidney for further process.

8 0
2 years ago
Other questions:
  • Two sicentist do not agree o which type of grocery bag is better is better for the environment
    13·2 answers
  • A generic protein that is 387 amino acid residues long will have a molecular weight (daltons) _______.
    15·1 answer
  • A mutation in a gene that controls mitosis in cells may cause? a) cancer. b) cystic fibrosis. c) albinism. d) meiosis.
    9·1 answer
  • Which of the following includes only biotic factors?
    6·2 answers
  • Water has many unique properties that allow an organism to survive. In your own words, describe which property of water is utili
    14·1 answer
  • What do we mean when we refer to a cell as differentiated?
    6·1 answer
  • An organism that feeds on plant matter
    15·2 answers
  • Which protist exhibits both animal-like and plant-like characteristics?
    14·2 answers
  • Definition: Literally, one-celled.<br> Example: Some bacteria are this.
    6·1 answer
  • Grasslands are biomes that are very valuable as areas for farming and grazing livestock. In
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!