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jarptica [38.1K]
3 years ago
8

What must occur for a process to be a chemical reaction?

Biology
1 answer:
VLD [36.1K]3 years ago
3 0
There must be a change in the chemical composition of the substance and the change is highly irreversible
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The plaque (microbial biofilm) that forms between your teeth is a highly anaerobic (oxygen-free) environment, even though the mo
slavikrds [6]

Answer: The bacteria uses the oxygen present in the mouth.

Explanation:

The plaque that is formed in the teeth is a highly anaerobic bacteria but it can sustain in the environment rich in oxygen. The oxygen is used by the bacteria and there is a absence of oxygen in the teeth.

It is formed in between the teeth which needs oxygen to survive and if remains for tooth for a longer period of time then it began to grow without oxygen.

It basically uses the oxygen available in the mouth and makes the condition anaerobic.

8 0
3 years ago
Which of the following species type, if removed would alter the ecosystem drastically?
blagie [28]
Native species ??………..
6 0
3 years ago
Which of the following is not a reason we become shorter as we age?
Lady_Fox [76]

Answer:

The correct answer is - As a person ages, scoliosis may develop resulting in an abnormal spinal curvature and shorter stature.

Explanation:

Scoliosis is a condition in which spine curvature towards the sides takes place before the puberty during growth period or spurt normally. The cause of this condition could be muscle dystrophy or palsy and similar condition.

This affects the stature of an individual but not affected by age as it remains constant normally after development or growth till puberty. All other conditions are associated with the short stature and influenced by the age.

3 0
3 years ago
How are organisms named Linnaean taxonomy
Free_Kalibri [48]

Carolus Linnaeus is the father of taxonomy, which is the system of classifying and naming organisms. One of his contributions was the development of a hierarchical system of classification of nature. Today, this system includes eight taxa: domain, kingdom, phylum, class, order, family, genus, and species.

5 0
4 years ago
What is the probability that a cross between a true-breeding pea plant with spherical seeds and a true-breeding pea plant with w
notsponge [240]

Answer:

1 or 100%

Explanation:

Let the allele for seed shape be represented by S.

True breeding spherical shape seeded pea plant will have SS as genotype

True breeding pea plant with wrinkled seeds will have ss as genotype

Crossing the two:     SS  x   ss

Progeny: Ss, Ss, Ss, Ss

Based on the assumption that spherical shape allele is dominant over wrinkle shape allele, all the F1 offspring will have spherical seeds.

<em>Hence, the probability is 1 or 100%</em>

5 0
3 years ago
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