BIOLOGY HIGH SCHOOL

Select all that apply. If you wanted to try and identify or classify archaea or eubacteria, you would _____-study their habitat
-study their genetic make-up
-study their shape and arrangement
-conduct Gram staining
-study how they gain energy and nutrients
-study how they move

Answers

Answer 1
Answer:

If you wanted to try and identify or classify archaea or eubacteria, you would study their habitat, study their genetic make-up, study their shape and arrangement, conduct Gram staining, study how they gain energy and nutrients and study how they move. Archaea and eubacteria are genetically different; Archaea have more complex RNA polymerases that contain multiple polypeptides while eubacteria have simple RNA polymerases that contain four polypeptides. Archaea cell walls do not contain peptidoglycan while almost all bacteria cell walls contain peptidoglycan.
Answer 2
Answer: The right answer for the question that is being asked and shown above is that: "-study their habitat; -study their shape and arrangement
-conduct Gram staining; -study how they gain energy and nutrients; -study how they move

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Which of the following describes natural selection? A. A population of mammals lives near the water, water levels rise and the habitat becomes swampy, the animals have trouble moving in the water, the population changes to a shorter-legged type so they can move more easily in the water B. A population of mammals lives near the water, water levels rise and the habitat becomes swampy, the act of swimming shortens the legs of the mammals, the offspring of the mammals have shorter legs C. Water levels rise and a habitat becomes swampy, a population on high ground observes the change, individuals with shorter legs migrate to the area D. A population of mammals varies in the length of their legs, water levels rise and the habitat becomes swampy, the individuals with shorter legs are better able to swim to food, the population evolves to become shorter-legged 1 points

Answers

the answer is D. it shows how the population changed because the shorter legged animals survived and continued the population while the long legged animals died away.

Final answer:

Natural selection occurs when there is variation within a species, inheritance of the variations, and a limit on resources. This leads to individuals with advantageous traits having a higher chance of survival and reproduction. The best example given was a population of mammals that evolved to have shorter legs due to a change in their habitat.

Explanation:

Natural selection is a crucial mechanism of evolution and it occurs when three conditions are present: variation within a species, inheritance of those variations, and a population limitation on resources consumed. This leads to a survival competition, where advantageous traits increase an individual's chances of survival and reproduction, thus passing these traits onto the offspring.

In the given options, the description that fits most closely with natural selection is: 'D. A population of mammals varies in the length of their legs, water levels rise and the habitat becomes swampy, the individuals with shorter legs are better able to swim to food, the population evolves to become shorter-legged'. This example demonstrates genetic variation (the different leg lengths), selection pressure (the change in habitat), and selection advantage (shorter legs being more suitable for the new conditions).

Learn more about Natural Selection here:

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What are the three rules that govern the filling of atomic orbitals by electrons

Answers

Rule 1. aufbau rule - energy levels filled so lowest energy level filled first.
Rule 2. pauli exclusion principle - maximum of 2 electrons may be placed in each energy level. Provided the spins of electrons are of opposite sign.
Rule 3. hunds rule - when energy levels are equal one electron is added to each energy level in turn with their spins unpaired until each energy level has one electron.

All cells within an organism have the same number of chromosomes except for _____. cardiac cells nerve cells muscle cells gametes

Answers

Your answer is REPRODUCTIVE CELL or GAMETES
The answer is gametes ( from the choices)

Nitrifying bacteria convert _____ to _____.

Answers

Ammonia to nitrates. 
Hope that helped you.

Amino acids that you obtain from eating foods are classified asa. extracellular.
b. essential.
c. facilitated.
d. inorganic.

Answers

b. essential
We cannot store up amino acids on our body, but we can have amino acids through consumption of food. These amino acids of which the body cannot make is called as essential amino acids.

How can a person donate blood and never run out of it?

Answers

The marrow in certain bones in your body create red blood cells, so eventually you get your blood back. The reason we need to give blood is for people, who lost to much blood to quickly to regenerate it in time to supply their body with oxygen.
Because they don't go all the time and get all there blood sucked out of them just being honest lol
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