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3 years ago

What is one component of a cell that distinguishes all three domains from each other?

Biology

2 answers:

icang [17]3 years ago

5 0

The one component of a cell that distinguishes all three domains from each othe is the nucleus

vampirchik [111]3 years ago

3 0

Answer:

The correct answer is the composition or components of the cell wall (if present).

Explanation:

The common component of all three domains, Archaea, Bacteria and eukarya, is cell wall composition (if present), Archaea cell wall has peptidoglycan, whereas the Eukarya cell wall has polysaccharides (if present). Bacteria cell contains neither polysaccharides nor peptidoglycan in their cell wall.

Thus, The correct answer is composition or components of the cell wall (if present).

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Which statement about how organisms depend on abiotic factors in an aquatic ecosystem is not true?

Nat2105 [25]

The answer is a. most living organisms can survive in environments with several different temperature and salinity levels.

Aquatic plants and animals depend on dissolved oxygen for respiration. The other abiotic factors that impact their life in an aquatic ecosystem are temperature, salinity, and flow and they determine the quality of their life. It is not true that most living organisms can survive in environments with several different temperature and salinity levels. On the contrary, a few species can live in environments with several different temperature and salinity levels, for example, some bacteria. The most organism can survive in a specific range of abiotic factors.

5 0

3 years ago

Read 2 more answers

The LMand LNalleles at the MN blood-group locus exhibit codominance. Give the expected genotypes and phenotypes and their ratios

Dmitry [639]

Answer:

Please find the expected genotypes and phenotypes of the progenies of each cross below.

Explanation:

In the MN blood-group locus of the gene, alleles LM and LN exhibit codominance i.e one allele is not dominant or recessive to the other, hence, they are both expressed when they occur in a heterozygous state (MN).

Considering the following crosses (find the punnet square attached);

a)LMLM x LMLN - The progeny are LMLM and LMLN in the genotypic ratio 1:1. Phenotypic ratio is Blood type M (1) : blood type MN (1)

b) LNLN x LNLN - The progeny are all LNLN offsprings with a phenotypic and genotypic ratio 4:0. All offsprings will have a blood type N (4)

c) LMLN x LMLN - The progenies are LMLM, LMLN and LNLN in the genotypic ratio 1:2:1 respectively. The phenotypic ratio is Blood type M (1) : L

Blood type MN (2) : Blood type N (1)

d) LMLN x LNLN - The progeny are LMLN and LNLN with genotypic ratio 1:1 and phenotypic ratio blood type MN (1) : blood type N (1)

e) LMLM x LNLN - The progeny are all LMLN offsprings with penotypic ratio blood type MN (4)

6 0

4 years ago

Which taxon includes organisms that have hair or fur and produce milk?

saveliy_v [14]

Mammalia (mammals) have hair or fur and produce milk

4 0

3 years ago

How does the Red-tailed black shark avoid predators?

Anestetic [448]

They hide in places like driftwood and vegetation

4 0

3 years ago

If all photosynthesizing organisms were removed from the planet would animals still be able to perform cellular respiration?

LuckyWell [14K]

Answer:

Explanation:

This is because oxygen will not be available for breathing and energy will not be released for cellular activities because photosynthesizing organisms have chlorophyll and trap light energy ffrom sunlight , using carbondioxide and water to produce glucose and oxygen. Oxygen is the by product which is the gas that is inhaled by living organisms during respiration and also break glucose to release ATP. Therefore without these organisms, respiration will be difficult.

7 0

3 years ago