Hadean is the first eon of precambrian, and took place around 4.6 and 4.0 billion years ago.
<h2>Gelatin </h2>
Explanation:
Gelatin is a differential medium which tests the ability of an organism to produce an exoenzyme, called gelatinase (this enzyme hydrolyzes gelatin)
When gelatin is at a temperature below 32°C (or within a few degrees thereof), it is a semisolid material and at temperatures above 32°C, it is a viscous liquid
When gelatin is broken down, it can no longer solidify and if an organism can break down gelatin, the areas where the organism has grown will remain liquid even if the gelatin is refrigerated
No the conclusion by student is not right because the tube must be runny after incubation followed by refrigeration to be considered gelatinase positive
Scientific inquiry refers to the diverse ways in which scientists study the natural world and propose explanations based on the evidence derived from their work.
Probiotics
and why is down below
Probiotics: <span> Probiotics are live microorganisms that may
be able to help prevent and treat some illnesses. Promoting a healthy
digestive tract and a healthy immune system are their most widely
studied benefits at this time. These are also commonly known as
friendly, good, or healthy bacteria.
That is why i would prescribe it
</span>
Answer:
Natural selection can cause microevolution (change in allele frequencies).
Explanation:
With fitness-increasing alleles becoming more common in the population.
