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ahrayia [7]
3 years ago
6

Structures as different as human arms, bat wings, and dolphin flippers contain many of the same bones, these bones having develo

ped from very similar embryonic tissues. How do biologists interpret these similarities?
A.) by the principle of convergent evolution
B.) by proposing that humans, bats, and dolphins share a common ancestor
C.) by identifying the bones as being homologous structures
D.) Three of the statements above are correct.
E.) Two of the statements above are correct.
Biology
1 answer:
nordsb [41]3 years ago
3 0
The answer is E.) Two of the statements above are correct
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Please help thank you
noname [10]

Answer:

adhesion

Explanation:

The term used to describe the attraction of water molecules to other molecules is referred to as <u>adhesion</u>.

Generally, adhesion or adhesive forces is a term used to describe the force of attraction between molecules of different substances. This is as opposed to cohesion or cohesive forces which refers to the force of attraction between the molecules of the same substance.

Hence, when molecules of water attract or stick to other molecules, the force at play is an adhesive force or simply adhesion.

8 0
2 years ago
A protein isolated from a thermophilic bacterium shows a molecular weight of 160 kD when eluted from a size-exclusion chromatogr
Amiraneli [1.4K]

Answer:

as a dimer consisting of two identical monomers (80 kDa subunits) that are packed together via hydrophobic interactions

Explanation:

SDS-PAGE (sodium dodecyl sulphate–polyacrylamide gel electrophoresis), is an electrophoretic methodology used to separate proteins that have a molecular weight between 5 to 250 kDa. SDS is a well-known ionic detergent that is able to break hydrophobic interactions and hydrogen bonds. Moreover, size-exclusion chromatography is a filtration technique that separates molecules in solution according to their molecular size. In this case, SDS-PAGE showed that the target protein is composed of two identical subunits (monomers) of 80 kDa each, which were separated by the detergent and formed one single band in the SDS-PAGE gel.

4 0
2 years ago
An atom that has the same amount of atoms of each element on both sides of the reaction obeys what law?
maw [93]
B. law of conservation of mass
This is why the total amount of and element before and after a chemical reaction is constant.
5 0
2 years ago
Read 2 more answers
The Yukon to Yellowstone Initiative is a plan to
harkovskaia [24]

ANSWER: E) connect parks in the United States and Canada with protected corridors where wildlife can  travel safely.

8 0
3 years ago
Read 2 more answers
In a ecosystem which is not a density dependent limiting factor
wel

Answer: living space

3 0
3 years ago
Read 2 more answers
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