1st Year Biology Chapter # 1 Biology and its Major Fields of Specialization

1st Year Biology Chapter # 1 Biology and its Major Fields of Specialization

Key Points:

• In this chapter we will read define biological control with an example, or what is biological control of pests, 
• Write down important features of a good theory
• What is deductive reasoning give examples,
• Define population and give its examples, 
• Write names of four eras of geological time chart,
• Differentiate between biopesticides and biological control,
•  Name a technique of food preservation, 
• What is hydroponic culture technique give its uses / importance,
•  Why hydroponic farming is not yet feasible,
•  Who may use hydroponic culture technique, 
• Name the methods by which various diseases are controlled, 
• How does hepatitis spread, 
• From which word evolved the present term vaccination and vaccine.

1:Define biological control with an instance, or what is biological control of pests?

In biological manipulate the dangerous organisms (e.G., pests) are controlled via letting them be eaten or killed by their predatory species e.G., an aphid that attacks walnut tree is being managed biologically by means of a wasp that parasitizes this aphid.

2:Write down important features of an excellent concept?

A terrific theory is testable, predictable and verifiable. It predicts outcomes which can be reproduced. It may explain an effect however not a motive. It can be disproven. It is not a assertion of truth, however a announcement of probability. It invites disagreement, opportunity, and better causes. It continuously undergoes revision and refinement.

3:What is deductive reasoning? Give examples.

Deductive reasoning is reasoning from the general to the unique. It involves drawing precise end from some wellknown precept/assumptions. Deductive good judgment of “if …… then” is frequently used to border testable hypothesis. For instance, if we accept that each one birds have wings (premise # 1) and that sparrows are birds (premise # 2), then we conclude that sparrows have wings. If all inexperienced plant life require sunlight for photosynthesis then any inexperienced plant whilst put in darkish would now not synthesize glucose, the end made from photosynthesis.

4:Define populace and give its examples.

A populace is a set of organisms of the identical species located in the same location at the identical time. Examples are the variety of rats in a subject of rice, the range of students for your biology elegance, or human population in a town.

5:Write names of 4 eras of geological time chart.

• Proterozoic era
• Palaeozoic generation
• Mesozoic era
• Coenozoic generation

6:Differentiate between biopesticides and organic manipulate.

Biopesticides are certain types of insecticides derived from such herbal materials as animals, plant life, micro organism, and certain minerals. As an example, canola oil and baking soda have pesticidal packages and are taken into consideration biopesticides in organic manipulate the damaging organisms (e.G., pests) are controlled by using letting them be eaten or killed via their predatory species e.G., an aphid that attacks walnut tree is being managed biologically by way of a wasp that parasitizes this aphid.
Call a technique of meals upkeep.
Pasteurization

7:What kind of food is preserved by way of pasteurization?

Milk and milk merchandise.
What's hydroponic culture method? Supply its uses / significance.
In this approach the plants are grown in aerated water to which nutrient mineral salts have been added. It's far used to test whether or not positive vitamins is essential for plants or no longer. This technique is used by astronauts.

8:Why hydroponic farming isn't yet feasible?

Hydroponic farming is yet no longer feasible due to the fact it is high priced in comparison with growing crops in soil.

9:Who may additionally use hydroponic lifestyle method?

Astronauts

10:Name the methods through which various diseases are managed.

• Preventive measures
• Vaccination/Immunization
• Pills remedy/Gene remedy
• What's the reason of AIDS.
• HIV (Human Immunodeficiency Virus) is the motive of AIDS (acquired Immuno-Deficiency Syndrome).

10:How does AIDS spread?

It spreads via loose sexual touch, thru blood transfusion, by using using contaminated syringes or surgical gadgets and many others.

12:How does hepatitis spread?

Hepatitis is caused by H. Virus that is unfold via blood transfusion by using the use of contaminated syringes and surgical contraptions.

13:Who first developed the approach of vaccination?

Edward Jenner first advanced the method of vaccination in 1795.

From which word developed the existing term vaccination and vaccine.
Cowpox pus is known as vacca. From this phrase advanced the existing time period vaccination and vaccine.

14:How human beings are vaccinated or what's vaccination or inoculation?

Inoculation or vaccination is accomplished to make the humans immune whilst uncovered to the virus or bacteria at the time of epidemics or in some disease the individuals are vaccinated in their adolescence to lead them to proof against the ones illnesses.

15:What's Radiotherapy?

It is the technique in which the cancerous part is exposed to brief wave radiations from the radioactive fabric again and again at ordinary periods.

16:What's chemotherapy?

Chemotherapy consists of administrating sure anticancer chemical compounds to the sufferers at everyday intervals.

17:What's gene remedy?

This technique has been evolved to restore the defective gene. This includes isolating the normal gene and putting it into the host through bone marrow cells. That is referred to as as gene remedy.