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ankoles [38]
3 years ago
5

Which statement about air is correct?

Biology
2 answers:
Montano1993 [528]3 years ago
7 0

Answer:

Air is essential for all organisms

KatRina [158]3 years ago
6 0
Second one and djdjdjfjffjfjff
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Which structure contains peptidoglycan in bacteria? What is the name of the structure?
Natalija [7]

Peptidoglycan is present in the cell wall of gram-positive bacteria. Bacteria are safeguarded by a robust cell wall comprising peptidoglycan. The layer of peptidoglycan in the cell wall of bacteria refers to a crystal lattice composition produced from linear chains of two alternating amino sugars, that is NAM (N-acetylmuramic acid) and NAG (N-acetylglucosamine). Peptidoglycans is one of the most essential sources of D-amino acids in nature.

5 0
3 years ago
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Find the midpoint of the line segment joining the points ​(-4​,-1​) and ​(​-6,10​).
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5 0
3 years ago
Do monkeys and humans share a common anscestor
Lady bird [3.3K]

Answer:

Yes.

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Science.

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3 years ago
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Three species of lizard, labeled A, B, and C, are being studied using molecular analysis by two research colleagues in different
Andreyy89

Answer:

The most appropriate answer would be option B.

The flaw in their reasoning is that they compared different molecules in a different set of organisms.  

For example, they compared the DNA of lizard A and B whereas they compared the RNA of lizard B and C.

In addition, the mutation rates of different molecules (DNA and RNA) are different and thus, comparison of DNA in one set of organism and comparison of RNA in another set cannot be used as the basis for the conclusion.

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3 years ago
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Of the six kingdoms now recognized, A two are eukaryotes, and four are prokaryotes. B four are plants, and two are animals. C tw
vitfil [10]

Answer:

The answer to your question is: letter C. two are prokaryotes and four eukaryotes

Explanation:

A two are eukaryotes, and four are prokaryotes. This answer is wrong because animalia, plantae, fungi and protista are eukaryotes.

B four are plants, and two are animals. This answer is wrong because only one kingdom is plants (plantae).

C two are prokaryotes, and four are eukaryotes. This answer is right there are two prokaryotes (eubacteria and archaebacteria) and the others are eukaryotes.

D four are bacteria, and two are eukarya. This answer is wrong there are only 2 bacteria not 4.

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3 years ago
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