BIOLOGY HIGH SCHOOL

Who was the first person to develop the ideas of listing elements according to their mass?

Answers

Answer 1
Answer: Mendeleev was the first chemist to organize the periodic table according to their mass. He also created groups. 

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What happens to molecules when an organism eats another organism?A. The atoms of the molecules are transformed into atoms of totally different elements.

B. The molecules are rearranged by the process of photosynthesis.

C. The molecules are changed into energy and released into the ecosystem as heat.

D. The molecules are broken apart and their atoms are rearranged to form new molecules.

Answers

D. The molecules are broken apart and their atoms are rearranged to form new molecules.

A. True
b. False Plankton and nekton are found in the ocean. A shark is an example of nekton.

Answers

The answer is A. True.

Plankton includes a diverse group of organisms that live in the water but are not capable of active swimming against the water current. On the contrary, nekton includes a diverse group of organisms that live in the water but are  capable of active swimming without the help of the water current. A shark is capable of active swimming, therefore, it is the example of nekton.

Exposure to cosmic rays, X-rays, ultraviolet rays, and radiation from radioactive substances may promote?

Answers

Exposure to cosmic rays, X-rays, ultraviolet rays, and radiation from radioactive substances may promote diversity among organisms. The correct option is C.

What is diversity?

All the different types of life that are present on Earth are referred to as biological diversity or biodiversity. Three layers of biodiversity can be identified and quantified: species, genetic, and ecosystem diversity.

As high-frequency (high-energy) ionizing radiation, x-rays, and gamma rays contain sufficient energy to ionize (take the electron from) an atom or molecule.

Exposure to cosmic rays, X-rays, ultraviolet rays, and radiation from radioactive substances cause mutation, and mutation cause change in genes which cause diversity.

Therefore, the correct option is (C) diversity among organisms.

To learn more about diversity, refer to the link:

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The question is incomplete. Your most probably complete question is given below:

Metabolism

Originate from predicting life

diversity among organisms

DNA duplication
Hi There! :)

Exposure to cosmic rays, X-rays, ultraviolet rays, and radiation from radioactive substances may promote?

Diversity Among Organisms

People once believed that the world was flat. What changed their minds?A) the invention of the globe
B) Queen Mary decreed the world was round
C) continued travel to the western hemisphere
D) testing new hypotheses that generated new data

Answers

C. they created the globe after they realized it was round

_______ is/are the raw material of evolutionary changea. Genetic drift
b. Nonrandom mating
c. Assortative mating
d. Mutations

Answers

d. Mutations

Mutations are a naturalphenomenon that are alterations or slight modifications that occurs in the DNA.It actually is typical for these modifications to occur in most DNA in our chromosomes.Though the changes both intrinsically and extrinsically can only be the resultof such need, insignificant or have an insidious effect. It can’t be avoidedand it usually happens every time cells undergoes mitosis and meiosis. Further,most of these modifications in the copied cells are good. Lastly, the mutationprocess happens in the basic structure that shapes every cell and everycreature so it just a natural phenomenon, mostly.

Final answer:

Mutations are the raw material of evolutionary change, introducing genetic variation required for natural selection. Genetic drift, Nonrandom mating and Assortative mating, while part of the evolutionary process, are not the 'raw materials'.

Explanation:

The raw material of evolutionary change is mutations. Mutations are a change in a DNA sequence that can lead to different phenotypic traits. The DNA sequence changes can come in various forms such as deletions, insertions, or substitutions in the base pair sequence. These Mutations are a source of genetic variation, which is crucial for the process of natural selection. Without mutations, evolution could not occur because there would be no variation for natural selection to act upon. Genetic drift, Nonrandom mating and Assortative mating are mechanisms of evolution, not raw materials.

Learn more about Mutations here:

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Is an organelle living or nonliving?

Answers

Organelle is nonliving because it doesn't need water to stay alive or air or food.
Hope I helped:P  
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