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crimeas [40]
2 years ago
9

What do you think could be some other benefits to using prescribed burns in an ecosystem?

Biology
2 answers:
Dahasolnce [82]2 years ago
8 0
Allows for new plants to grow back healthier and it eliminates invasive species
STatiana [176]2 years ago
8 0
Allows to for new vegetation to grown it sets a restart on life in that area
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7. Once you have taken a bite of an apple, which of the following represents the correct pathway of its nutrients?
slamgirl [31]

Answer: B

Explanation: It goes to the stomach where the nutrients are gathered and sent to cells

6 0
3 years ago
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Eukaryotic cells do NOT have a cytoplasm true or false
Dennis_Churaev [7]

Answer:

False

Explanation:

8 0
2 years ago
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Which of the following types of reproduction is evolution observable?
MissTica

In Sexual reproduction evolution takes place.

Explanation:

In sexual reproduction, the gametes from the two parents fuse to form a zygote and consequently an organism. The gametes from the two parents provide different alleles for a trait. The different genetic variant or alleles found will cause genetic variation.

The offspring can survive and adapt to the new environment. This leads to natural selection and evolution.

In asexual reproduction changes only occur if mutation takes place otherwise the progeny remains genetically identical so less chance of evolution.

Analogous are the organs having similar function but different origin in different organisms.

Detrimental effects are small or negligible effect of mutation on organism due to the exposure of chemicals or rays.

Only those mutations are heritable which occur in germ cells, mutations of somatic cell do no pass to other generation. Detrimental effect is mainly seen in somatic cells.

6 0
3 years ago
25 POINTS ON THE LINE SOMEBODY PLEASE HELP ME Would you be tested to find out about your genetic makeup? Explain .
Andrews [41]

Answer:

Yes.

Explanation:

Recent developments in biology have made it possible to acquire more and more precise information concerning our genetic makeup. Although we have only begun to see the most far-reaching effects of these developments and the completion of the Human Genome Project, scientists can even today identify a number of genetic disorders that may cause illness and disease in their carriers. The improved knowledge regarding the human genome will, it is predicted, soon make diagnoses more accurate, treatments more effective, and thereby considerably reduce and prevent unnecessary suffering. The knowledge can also be, however, depending on the case, futile, distressing, or plainly harmful. We propose to answer in this article the dual question: who should know about our genetic makeup and why? Through an analysis of prudential, moral, and legal grounds for acquiring the information, we conclude that, at least on the levels of law and social policy, practically nobody is either duty-bound to receive or entitled to have that knowledge.

8 0
2 years ago
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Sort the phrases into the appropriate bins depending on whether they are true only for channels, true only for carrier proteins,
ehidna [41]
<h2>The correct answer is explained below:</h2>

Explanation:

  • The Plasma membrane of a cell is made up of a phospholipid bilayer which has a hydrophobic core and hence is impermeable to water soluble or polar organic and inorganic molecules.
  • However, a cell can maintain proper homeostsis and undergo metabolism only when it is able to exchange different hydrophilic and polar organic and inorganic chemical components present inside the cell with those present outside the cell.
  • This necessitates the development of a "path" that could connect the cell interior to the cell exterior.
  • The path is developed by integral membrane protein that spans across the lipid bilayer opening on either side of the membrane, thereby connecting the cell interior with the cell exterior.
  • These integral membrane proteins are amphipathic in nature, that is, they are composed of both polar and non-polar amino acid residues. The amino acid residues are arranged such that the non polar amino acid residues face and undergo hydrophobic interactions with the water avoiding lipid molecules in the plasma membrane. The polar amino acid residues face towards the lumen of the opening in between the cell interior and exterior such that they can form hydrogen bonding with the water soluble polar organic or inorganic molecules and help them traverse the plasma membrane.
  • These integral membrane proteins are of two types: Channel proteins and Carrier proteins.
  • The Channel proteins:
  1. Form a direct and continuous opening across the plasma membrane. They can either remain always open or can be gated, that is, they open only on associating with specific signalling molecules.
  2. They transport solutes from a region of high electrical charge or concentration to a region of low electrical charge or concentration, that is, down the electrochemical or concentration gradient.
  3. They usually allow the easy and quick transport of water molecules and small ions across the membrane.
  • The Carrier proteins:
  1. They undergo a change in their conformation to translocate solute molecules across the plasma membrane and they do not form a continuous opening.
  2. When they open on one side of the membrane they are closed on the other side. They cannot remain, simultaneously, open on both sides of the membrane.
  3. They are required mainly for the translocation of small polar organic molecules across the plasma membrane down the electrochemical or concentration gradient.
  • For channels only:
  1. g.
  2. a.
  • For carrier proteins only:
  1. f.
  2. b.
  • For channels as well as carrier proteins both:
  1. c.
  2. e.
  3. d.
4 0
3 years ago
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