Answer:
To clearly see specimens under the microscope, and to be able to see two separate objects that are close together.
Explanation:
A microscope is a tool that makes an object look bigger so that the person who is looking at it can see it. It's important to use a microscope because cells are usually too small to see with the naked eye. In addition to magnification, microscopes also have resolution, which is the ability to see two objects that are close together as separate. A microscope needs both magnification and resolution to be able to clearly see specimens under the microscope. When the light microscope bends light at the specimen, it gives the viewer a clear picture of the specimen. A series of lenses do this.
Answer:
Option A
Explanation:
Options -
A-avoid water pollution.
B-build thermal power plants.
C-add water features to gardens.
D-avoid drip irrigation systems
Solution -
The largest source of freshwater on planet earth is underground water. The water beneath the surface of earth is very limited. The total fresh water reserve on earth is 3% of the total water on earth. Pollution due to discharge of waste water into the rivers and oceans has caused the degradation of not only surface water but also ground water.
Thus, option A is correct
Drip irrigation is a means to prevent wastage of water during irrigation. Thus, avoiding it will cause further loss of fresh water.
Addition of water feature will increase usage of water, thus it is also incorrect
Building thermal plant will also cause water pollution and wastage. Hence, option B is also incorrect
The carbon lives in the plant or animal and when it dies, nitrogen sinks into the soil which is used as nutrients for plants.
C) all the offspring will be genetically identical.
Explanation:
During binary fission, all the offspring will be genetically identical and little to no variation occurs.
Binary is an asexual form of reproduction which does not involve the combination of gametes from the parents.
- During binary fission, the parent simply divides to produce young ones.
- In this process, the offspring replicates the genetic component of the parents making it identical.
- The offspring is a direct copy of the parents.
- It is only in sexual reproduction that genetic materials are exchanged between the parents and offspring. This leads to genetic variation.
Learn more;
Asexual reproduction brainly.com/question/9424950
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