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PSYCHO15rus [73]
3 years ago
10

Name 2 eukaryotes that have a cell wall

Biology
1 answer:
madreJ [45]3 years ago
4 0
Onion (Allium) and Banana (Musa) are both eukaryotes and both have cell walls.
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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.

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3 years ago
Is a hamster a primary consumer? Why?
Fiesta28 [93]

Answer:

A hamster is a primary consumer because it feeds on primary producers (plants).

5 0
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Dimples (D) and brown hair (A) are dominant traits. Answer the following questions based on the dihybrid cross shown:
ira [324]
1. DDAA, DdAa
2. DDaa, Dada
3. ddAA, ddAa
4. ddaa
5. The phenotypic ratio is 9:3:3:1 where 9 combinations will produce offspring with both dominant phenotypes (dimples and brown hair), 3 will produce offspring with one dominant phenotype and one receive phenotype (dimples, blonde hair), 3 will produce offspring with one receive phenotype and one dominant phenotype (no dimples, brown hair), and one will produce offspring with both recessive phenotypes (no dimples, blonde hair)
5 0
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Please answer quickly!
kirill [66]
By looking at the diagram, and my knowledge of Punnett squares, i would say B. 4:16
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Question 1
gtnhenbr [62]

Answer: 1.chromosomes, 2. Histones, 3. prokaryotes have one chromosome, 4. A sugar phosphate backbone with nitogen bases in the middle. 5. Chromatin

Explanation: Chromatin

8 0
3 years ago
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