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pogonyaev
3 years ago
12

Why are scientists concerned about the loss of species as a result of human activities? Why would the extinction of other specie

s negatively affect human society?
Biology
1 answer:
Vera_Pavlovna [14]3 years ago
3 0
Scientists are concerns about the loss of species because the loss of one species can set off a chain reaction that cause other species to die out and affect out food chain.
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Which statement describes the relationship between a gene and an allele?
omeli [17]

Answer: option B) A gene can take different forms called alleles.

Explanation:

An allele is one of the two or more different forms of the same gene.

For example, a trait such as seed shape is represented expressed a gene, but with allele of "RR" (round seeds) and "rr"(wrinkled seeds) observed physically by the farmers.

Thus, the correct answer is that a gene can take different forms called alleles.

6 0
3 years ago
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the stomach lining is protected from the very strong acid of the stomach by: answers: enzymes. a coating of mucus. saliva. antib
Vikentia [17]
Coating of mucus( gastric mucosal barrier) protects the stomach from its acid
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How are symbiotic bacteria on the roots of some plants called legumes and the nitrogen cycle related?
GalinKa [24]

Answer:

The bacteria found on roots, mainly on legumes, are related to the nitrogen cycle because nitrogen found in the environment is not usable by many species but because the bacteria can "fix" the nitrogen, it is usable by the plant which in turn it returned into the environment.

Explanation:

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3 years ago
El término virulencia hace referencia a:
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B la patogenicidad de un virus
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Metabolic acids __________. are acid participants in, or by-products of, cellular metabolism can leave the body by entering the
Marianna [84]

Answer:

a. are acid participants in, or by-products of, cellular metabolism

Explanation:

cellular metabolism is the process in which several chemical recation stakes place in body. there aretwo type of cellular metabolism - catabolism and anabolsim, which serves for several body functions.

During the chemical reaction of cellular metabolism, many acids are produced which are called metabolic acids. Several metabolic pathways produces different acids such as carboxylic acid, citric acid and amino acid. All the metabolic acid maintains body's functional activities,if any case acid formation increases it causes metabloic acidosis.

Hence, the correct option is a. "Metabolic acids are the acid participants of celular metablosim".

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