To classify an organism a scientist finds in the field, which of these will the scientist first compare to other known organisms?A. Dietary habits
B. Ecological niche
C. Physical structure
D. Reproductive method

Answers

Answer 1

Answer: The answer is C. Physical structure.

Different species can share dietary habits, ecological niches, and reproductive method although they are not related. So, classifying organisms based on these features is not helpful a lot. It is known that different species differ in DNA sequence. Since physical structures are determined by DNA sequences, physical structures could show in first sight difference between species. Therefore, to classify organism found in the field, the scientist will start from comparing its physical structures to the other known organisms.

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All of the following patterns were witnessed by Darwin except that species vary

Answers

All of the following patterns were witnessed by Darwin except that species vary within very short spans of time. Charles Darwin put forth a coherent theory of evolution and amassed a great body of evidence in support of this theory. By the 19th Century, a number of natural historians were beginning to think of evolutionary change as an explanation for patterns observed in nature.

The best source of internal motivation is from

Answers

positive self talk is the best source of internal motivation.

Forces of attraction between particles is the SMALLEST in gas
solid and liquid
solid

Answers

Answer:

gas

Explanation:

In gas there are weak attraction forces present between the particles.

Properties of gases:

Molecule of gases randomly move everywhere and occupy all available space.

Gases don't have definite volume and shape and take the shape and volume of container in which it present.

Their densities are very low as compared to the liquid and solids.

Gas molecules are at long distance from each other therefore by applying pressure gases can be compressed.

The very weak inter molecular forces are present between gas molecules.

Properties of Liquid:

Liquid have definite volume but don,t have definite shape.

Their densities are high as compared to the gases but low as compared to the solids.

In liquid, molecules are close to each other and have greater inter molecular forces as compared to the gas molecules.

Properties of solids:

Solids have definite volume and shape.

In solids molecules are tightly pack and very close to each other.

Their melting and boiling point are every high.

The densities of solids are also very high as compared to the liquid and gas.

There are very strong inter molecular forces are present between solid molecules.

A student is given a small amount of unknown tan-colored liquid substance. This unknown liquid is placed into a glass of water and mixed. Despite mixing, the tan liquid remains separated from the water and collects as a large droplet at the top. Which of the macromolecule groups is this liquid MOST likely to be a member of?nucleic acids
proteins
lipids
carbohydrates

Answers

I think the correct answer from the choices listed above is the third option. The liquid, most likely would belong the group of lipids since this substance is immiscible with water or does not mic with water. Hope this answers the question. Have a nice day.

The fact that they do not dissolve shows that it is a lipid. This is further supported by the fact that the liquid remains collect to form a giant droplet. This occurs as oil/lipids are hydrophobic and thus tend to collect in clumps.

What two cell types do complement proteins interact with, besides the pathogen itself?

Answers

The complement proteins interact with B and T cells also. Complement proteins help B cells with activation and tolerance against the pathogen they are dealing with.

What is the term for the study of weather and climate