Which of these proteins in mammals show only primary and secondary structures?Oxytocin
Keratin
Hemoglobin

Answers

Answer 1

Answer: The correct answer is keratin. Proteins like keratin are made up of multiple peptide chains (polypeptide); these are group of amino acids joined by peptide bonds. The sequence of amino acids in a protein is the primary structure while the specific shape in which it is folded (alpha or beta) is called the secondary structure.

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Students going on field trip noticed that boys from the football team were able to walk for a long time without getting tired while other students got tired easily......what would be the hypothesis to that?

Answers

Answer:

Footballers are uses to exercising their body so walking for a long time will not affect them because when they practise everyday for the football practice their body is already used to such exercise and so walking is very easy for them....I hope this answers your question...Thank you for the question.

COMPARE THE LOUDNESS OF SOUND WAVES THAT ARE IN PHASE WHEN THEY INTERFERE WITH THE LOUDNESS OF SOUND WAVES THAT ARE OUT OD PHASE WHEN THEY INTERFERE

Answers

Loudness of a sound relates the intensity of any given sound to the intensity at the edge of hearing.

The loudness of sound waves that are in phase will be twice as loud as they would be by themselves, if they are out of phase, a beat will be produced, or maybe a neighborhood of no sound at all.

Intensity of sound

The intensity of a sound is the power of the sound in Watts divided by the area the sound covers in square meters. The loudness of a sound relates the intensity of any given sound to the intensity at the edge of hearing.

Thus, the sound waves that are in phase will be twice as loud as they would be by themselves,if they are out of phase, the beat will be produced.

To know more about the loudness of sound waves follow the link:

brainly.com/question/11989801

The loudness of sound waves that are in phase (experiencing constructive interference) will be twice as loud as they would be by themselves. If they are out of phase, a beat will be produced, or even an area of no sound at al

How do obligate aerobes and obligate anaerobes differ in their interactions with the atmosphere?

Answers

The obligate aerobes need oxygen for their survival, while the obligate anaerobes do not. The obligate aerobes are the species that attain the energy for the process of aerobic respiration with the help of oxygen as the ultimate electron acceptor for the electron transport chain.

On the other hand, obligate anaerobes are the species, which get poisoned by the usual levels of atmospheric oxygen, and thus, get killed in the existence of oxygen.

Answer:

Obligate aerobes require oxygen from the atmosphere for survival, while obligate anaerobes do not.

Explanation:

In which of the following are the amounts always equal in DNA?a.
adenine and guanine
b.
cytosine and guanine
c.
thymine and cytosine
d.
cytosine and adenine

Answers

The answer to the question is C.

Choose the definition of: InvertebratesA. Having no backbone
B. have a backbone
C. having several backbones
D. having lost a backbone

Answers

The correct option is (a) having no backbone.

Invertebrates are the category of organisms that lack backbone. They have some soft tissues and because of this their body is soft as compared to that of vertebrates. Example: jellyfish and sponges. Some of the invertebrates have outer covering which is very hard called as exoskeleton. This helps them to protect from outer injuries and harsh conditions. Example: cockroach, spiders, etc.

without backbone or having no backbone is considered as INVERTEBRATES.

hope its help...

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People and animals breathe in oxygen from the air and exhale carbon dioxide.What happens to the carbon dioxide in the air?

A. Some animals breathe in carbon dioxide and exhale oxygen.

B. The carbon dioxide floats into the atmosphere and forms clouds.

C. Plants use carbon dioxide to make sugars and oxygen.