BIOLOGY HIGH SCHOOL

What information can be determined by observing dark lines within the spectrum of a given star? the elements present in the star's atmosphere the elements present in the star's inner core whether planets orbit the star the approximate size of the star

Answers

Answer 1
Answer: The information that can be determined by observing dark lines within the spectrum of a given star includes "the approximate size of the star" since the other options are unknown. 
Answer 2
Answer:

Answer:

the elements present in the star's atmosphere      

Explanation:

The spectrum showing dark lines is an absorption spectrum. The dark lines actually indicated the energy absorbed by the elements present in the atmosphere of the star.

The elements absorb particular wavelengths and reach higher energy state. The absorbed wavelengths appear as dark lines in the spectrum.

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Receptors that provide animals with information from the external environment are located in the _____.ears
skin
blood vessels
joints
tongue
eyes
muscles
nose

Answers

Receptors which provide animals with information from the external environment are located in ears, tongue, eyes, and the nose. These are all receptors that can be found in our sensory organs and provide us with feedback from our nearby environment and the stimuli on which we should be alerted towards. 
Receptors that provide animals with information from the external environment are located in the
ears
tounge
eyes
nose

All living and nonliving things in an environment make up an

Answers

The living parts of an ecosystem, called biotic factors, are all the organisms that live in the area. The nonliving parts, called abiotic factors, are the nonliving things in the area. All the living things together in an ecosystem form a community.
living is biotic and nonliving is abiotic.

Organisms adapted to surviving in water with the widest range of salinity would most likely be native species in which marine environments? a) Coral Reefs b) Intertidal Zones c) Deep Ocean d) Estuaries

Answers

Answer: D. Estuaries

Explanation:

Final answer:

Organisms adapted to surviving in water with a wide range of salinity are most likely to be native species in estuaries.

Explanation:

Organisms adapted to surviving in water with the widest range of salinity would most likely be native species in estuaries. Estuaries are coastal areas where saltwater and freshwater mix, creating fluctuating levels of salinity. Many estuarine plant species are halophytes, which can tolerate salty conditions, while animals in estuaries have developed behavioral adaptations to function in this changing environment.

Learn more about Estuaries here:

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A protein may consist of as many as _____ amino acid molecules. 500 2,000 5,000 48

Answers

Answer;

5,000 amino acids.


Explanations;

Amino acids are the basic building blocks of proteins; contains a carboxyl group (-COOH) and an amino group (-NH2).

Proteins are large, complex organic molecules consisting of a large number of amino acids linked together by peptide bonds.

A protein may consist of as many as 5, 000amino acids.
Proteins are macromolecules that are composed of amino acids, and a single protein molecule may contain as many as 5,000 amino acid molecules. The amino acids that make up the protein molecule constitute its primary structure. The interactions between these amino acids form the protein's secondary structure. Both of these structures are important in proteins as the function of proteins is highly dependent on their shape.

Are there Centrioles in Nerve cells?

Answers

There are no centrioles in nerve cells.
The answer to your question is no

Number 13 - which choice is the correct answer?

Answers

think it's number three
number 3 or number 4 but probably number 3
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