<span>The group exposed to a newly created drug that is being tested in an experiment is called the experimental group.
Whenever any new drug is formed, it is first experimented then it comes in pharmacies for use. Experimental groups are given variables,one variable is tested at a time. After that experimental group is compared to control group.</span>
Answer:
The correct option is <em>B. 25 %</em>
Explanation:
A heterozygous type can be described as the type in which both the alleles of a gene are different. If both the alleles of a gene are similar in an organism, then the person is said to be homozygous for the trait.
In the above question, two heterozygous parents are to be cross- bred to check the probability of them producing homozygous alleles (AA).
A punnet square made will show the following results:
A O
A AA AO
B BA BO
Hence, there will be 25% chance that the offspring produced could be homozygous AA.
Explanation:
Metabolites are the different kinds of the substances which are essential to metabolism of the organism.
Metabolites produced by the plants can be categorized into the primary metabolites and the secondary metabolites.
The primary metabolites have important role in survival of plant and play an active role in the respiration and the photosynthesis.
On the other hand, the secondary metabolites are not involved in normal growth and the development of plant. Although absence of these type of metabolites can lead to impairment of survivability of plant in long run.
<u>Secondary metabolites are produced mostly by the plants for the defense purposes.</u> They include steroids, alkaloids, phenolics, essential oils, resins, tannins, lignins, flavonoids, etc.
<span> 1. </span>Selling 2. exploiting
According to the Endangered Species
Act, selling an endangered plant is prohibited. Likewise, exploiting the
habitat of an endangered animal is also a punishable act. The Endangered
Species Act is a law created for the conservation of threatened and endangered
plants and animals and the habitats in which they are found. The law prohibits any
act of taking and selling of any endangered Species.
There seems to be a typograhical error in option B and C: the word 'community' was repeated twice. However, I've corrected it
Answer: Option B) A community refers to all the populations in an area; a ecosystem includes both biotic and abiotic components
Explanation:
The important difference between community and ecosystem is that the effect of abiotic i.e non- living factors, are considered in an ecosystem, unlike in a community.
Thus, an ecosystem refers to a community of biotic factors i.e plants, animals and microorganisms, interacting together with their non-living environment.
Community, on the other hand, refers to interdependence that occur within a group of plants and animals that occupy a given area. Thus, community considers only biotic factors.