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natita [175]
3 years ago
7

An important purpose of a cell wall in bacteria is to

Biology
1 answer:
slega [8]3 years ago
7 0
A wall located outside the cell membrane provides the cell support, and protection against mechanical stress or damage from osmotic rupture and lysis. The major component of the bacterial cell wall is peptidoglycan or murein. This rigid structure of peptidoglycan, specific only to prokaryotes, gives the cell shape and surrounds the cytoplasmic membrane.
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Help? You are studying an outcrop where the lower layer is limestone and the layer directly on top of the limestone is sandstone
ELEN [110]

Answer:

Due to mixing of particles present in the upper layer of limestone with sandstone during deposition.

Explanation:

The parent layer was limestone layer which is older than sandstone layer. This sandstone layer spreads on the limestone layer because of wind. The wind moves these sandstone from other region and their deposition occurs on the limestone layer. During deposition of sandstone, some particles of limestone which are present at the surface mixes with the sandstone so that's why in sandstone layer, small and weathered pieces of limestone are present.

7 0
3 years ago
A variable-ratio schedule reinforces behavior after a:
zmey [24]
A reinforcement schedule is a pattern that defines how often a desired response will be reinforced.<span> 
</span>A variable-ratio schedule <span>is a schedule of reinforcement where a response is reinforced after an unpredictable number of responses.</span>
<span>Fixed-interval schedules on the other hand  reinforce behaviors after set time periods.</span>

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3 years ago
Where is the asthenosphere located? (Select all that apply.) Right below the crust In the lower mantle. In the upper mantle. Rig
tester [92]
Right below the crust.
6 0
3 years ago
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What happens once a person is infected with a heprevirus?
hram777 [196]
<span>Herpesviridae is a large family of DNA viruses that cause diseases in animals, including humans.

When a person infected once, his immune system develops antidot against the virus, so he becomes immune for that virus for rest of his life. In other words, he can't be affected from that virus again

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7 0
3 years ago
After fertilization the zygote<br> A:begin to change<br> B:disappears<br> C:stays the same
Sergeeva-Olga [200]
I think it’s A, begins to change :))
6 0
2 years ago
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