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jeka94
3 years ago
11

Which term defines a well-tested, scientifically supported statement that explains how something works?

Biology
2 answers:
lara31 [8.8K]3 years ago
6 0
The term is called THEORY.
In scientific investigation, a theory is a well substantiated explanation of how a particular phenomenon works based on the set of facts which had been repeatedly confirmed through observations and experiments. A scientific theory gives reliable account of a phenomenon.
Bingel [31]3 years ago
5 0

The answer is d.theory

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ExtremeBDS [4]

Answer:

lion and cheetah populations compete for the food source of zebras ,and lions outcome cheetahs

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3 years ago
Which of the following sequences shows a frameshift mutation compared to the wild-type mRNA sequence?
Butoxors [25]

Option C:

B. wild-type 5-AUGCAUACAUUGGAGUGA-3 mutant 5'-AUGCAUACAUCUGGAGUGA- 3' 

Explanation:

A frameshift mutation is a genetic mutation such that the triplet nature of gene expression by codons, the insertion or deletion occurs in such as way that it alters the complete sequence of 3 codon sets and can change the reading frame, resulting in a completely different translation from the original.

As it is pertinent to understanding that all genes are normally translated in sets of 3 codons, which typically describes and explain a unique amino acid sequence. Thus, if a frame shift mutation occurs, it can affect many amino acid sequences and finally the entire protein.  

If we look at option B:

wild-type 5-AUG   CAU  ACA  UUG  GAG  UGA-3  

mutant 5’-    AUG   CAU  ACA  UCU  GGA  GUG  A-3’  

An insertion of a base Uracil showed at the end of 3rd codon which affected and altered the whole sequence of codon triplets. This changed all next codons and finally all next amino acids will be altered.

8 0
3 years ago
A plant may open and close its stomata to prevent excess water loss and maintain _____. adaptability homeostasis negative feedba
Harman [31]

The correct answer is the homeostasis.

A plant may close and open its stomata to prevent excess water loss and maintain homeostasis.

Homeostasis is termed as the tendency of organisms to maintain and automatic regulation of their internal environment to be in a stable condition.

We say that the plant is in stable condition when the fluid balance and body temperature are being kept in to a pre-set limits which include calcium ions, potassium, sodium and PH of extracellular fluid.

The natural resistance which changes the optimal condition brings about homeostasis.

8 0
3 years ago
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I’ll say it will decrease cause trees will get destroyed but still the environment is the environment animals will it unless it can camouflage
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Romashka-Z-Leto [24]

Answer:

D. All of these

Explanation:

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