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True [87]
3 years ago
9

2 Points

Biology
2 answers:
Murljashka [212]3 years ago
7 0
Answer:
C

Explanation:
The chemical formula for water is H2O meaning that there are 2 hydrogen atoms, H and 1 oxygen atom, O.
olga2289 [7]3 years ago
5 0

Answer:

c

Explanation:

A water molecule has three atoms: two hydrogen (H) atoms and one oxygen (O) atom.

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How could fish-eating birds land on rocky islands be important in the formation of a new community of living things?
maks197457 [2]

Answer:

they would provide nutrients for new living things to feed on.

Explanation:

Fish eating birds would need important in the formation of a new community of living things because as they feed on these fishes on the rocks, they would also be eliminating wastes. The wastes that are being eliminated would serve as a source of nutrient on the Island. With time there would be enough nutrients for plants to tart growing

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2 years ago
What is a single population is made of? a. multiple organisms. b. multiple species. c. multiple communities. d. multiple biomes.
Alexandra [31]
A. Multiple organisms 
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3 years ago
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AleksandrR [38]
The element is Manganese. Period I believe is boiling point and group is melting point.
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3 years ago
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In general, why might cell-wall inhibiting antimicrobial drugs be less effective on gram-negative bacteria compared to gram-posi
asambeis [7]

Cell-wall inhibiting antimicrobial drugs be less effective on gram-negative bacteria compared to gram-positive bacteria because the outer membrane of the gram-negative bacteria inhibits penetration of the drug and the peptidoglycan found in gram-positive bacteria is structurally different from that in gram-negative bacteria.  

Answer: Option B & C

<u>Explanation:</u>

Antimicrobial drugs are induced into a body to act on that particular selective bacterium which causes disease. When antimicrobial drugs are injected they act efficiently on the gram positive bacteria inhibiting the proliferation of the cells by acting on the cell wall so that cell multiplication doesn’t happen.

On the other hand it is hard to act on the gram-negative bacteria as it has a cell membrane that inhibits drug penetration into it. Both cell walls contain peptidoglycan but in the gram-positive is more assembled and layered while in the gram-negative it is just a thin layer. As gram-positive is thick layered it provides place for another molecule to attach to it but the thin layer in gram-negative inhibits it.

4 0
3 years ago
Non-steroidal anti-inflammatory drugs (NSAIDS) block the actions of the COX enzymes and their production of eicosanoids from ___
iVinArrow [24]

Answer:

Arachidonic acids

Explanation:

Non-steroidal anti-inflammatory drugs (NSAIDs) are drugs used due to their analgesic, anti-inflammatory effects.

It inhibit cyclooxygenase (COX) enzyme that takes part in the biosynthesis of prostaglandins (PGs) and thromboxane (TX) and the production of eicosanoids.

Eicosanoids are made by the enzymatic or non-enzymatic oxidation of arachidonic acid or from other polyunsaturated fatty acids (PUFAs) that are close to arachidonic acid which are 20 carbon units in length.

They are important cell signaling molecules that inhibit inflammation, allergy, fever,regulate abortion of pregnancy and normal childbirth, regulating cell growth.

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3 years ago
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