The correct answer is: d. Carassius is a group of different organisms with similar structures, while auratus is a smaller group of memebers that can only breed with another auratus.
Carassius represents the name of genus. In binomial nomenclature it is the generic name shared by the group of close relatives. In this case, Carassius is a genus in the family of ray-finned fishes.
Auratus represents the species of the fish and it is specific unique epithet within the genus.
The founder effect: is the reduction in genetic variation that occurs when a small subset of a large population is used to establish a new colony. The new population can be very different from the original population, both in their genotypes and in their phenotypes.
Answer:
1. Condenser
2. None of the above
3. Magnify 1000x
Explanation:
1. Illuminators provides the stable light source in the microscope. It can be reflected using a mirror for a built in microscope. Condenser is made up of two lenses which helps collect and concentrate light. The light beams passes through the centre of the lenses.
Total magnification is objective magnification × Ocular magnification
It makes the object appear bigger than it is. Any of the objective magnification can be uses to achieve the specific size. Objective ranges from 10-100
Oil immersion makes image appears brighter, they increase the refractive index. It is used with 100x objects to achieve a clearer image.
Protozoa are single-celled eukaryotic organisms. Many aquatic animals feed on protozoa. Protozoa help control the population of bacteria as well as other protozoans by feeding on them. Controlling the population of other organisms is important in maintaining ecological balance and diversity.
All organic compounds, such as proteins, carbohydrates, and fats, contain carbon, and all plant and animal cells consist of carbon compounds and their polymers.