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Lina20 [59]
3 years ago
8

What was the role of plant breeding in green revolution?​

Biology
1 answer:
Gennadij [26K]3 years ago
5 0

Answer:

plant breeding played a crucial role during the green revolution  

Explanation:

Plant breeding can be defined as the methodologies used to improve plant phenotypic traits. The methodologies for plant breeding include, among others, making crosses, setting breeding objectives, genetic engineering techniques, selection of progeny, etc. Moreover, the Green Revolution is a period occurring between 1950 and 1960 in which high-yield varieties were developed, specifically in rice and wheat. During this period, high yielding semi-dwarf varieties of rice and wheat arising from the cross between dwarf plants and normal varieties were developed. These high yield crops were resistant to lodging. The combination of these new varieties, fertilizers and new techniques of harvesting drastically improved crop yields, thus reducing hunger in Third World countries.

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Dr. Smith has discovered a bird that he believes is a new species. Dr. Wilson says he will only be convinced if Dr. Smith finds
larisa86 [58]

Answer:

The correct answer is - he wanted to be sure before considering before the bird as a new type if it really represents new species.

Explanation:

Dr. Smith has found the bird that he considered as new species however Dr. Wilson said he will only be convinced if DR. smith could find several members of the same species. Dr. Wilson seems to be sure before considering the bird that Dr. smith found as the new species. It is because he wants to sure if it's not an unusual example of the pre-described species.  

Thus, the correct answer is - he wanted to be sure before considering before the bird as a new type if it really represents new species.

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3 years ago
when plants are red flowers are crossed with plants with white flowers What proportion of The Offspring will have pink flowers
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3 years ago
When will hydrogen bonding occur?
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7 0
3 years ago
Read each question carefully, and answer yes or no to each one. At the end of each section, follow the directions to score your
Nataly_w [17]

Answer:

Section 1: Physical Fitness

Do you exercise or play a sport for at least 30 minutes three or more times a week? Yes

Do you stretch before and after exercising? No

Do you warm up before exercising and cool down afterward? No

Do you think that you are at a healthy weight? Yes

Are you mostly happy with the way your body looks and feels? Yes

Do you think you have enough energy? Yes

Give yourself one point for each No response and two points for each Yes response. Section score: _10___

Section 2: Family History

Do you have a family member who:

has high blood pressure? Yes

has diabetes? Yes

has heart disease? No

has cancer? Yes

is extremely overweight? No

Give yourself one point for each Yes response and two points for each No response. Section score: ___7_

Section 3: Hygiene and Medical Care

Do you floss your teeth every day? Yes

Do you brush your teeth at least twice a day? Yes

Do you visit the dentist at least once a year? Yes

Do you use sunscreen? No

Do you know basic first aid? Yes

Are all your immunizations current? Yes

Do you get your vision and hearing checked each year? Yes

Do you see the doctor for a check-up once each year? Yes

Do you feel you get enough sleep at night? Yes

Do you know the warning signs for cancer? No

Give yourself one point for each No response and two points for each Yes response. Section score: _18___

Section 4: Nutrition

Do you eat a lot of red meat or eggs? No

Do you add salt to your food? Yes

Do you add sugar to your food? Yes

Do you eat a lot of high-fat or high-sugar foods? Yes

Do you add butter or cheese to your food? Yes

Do you choose fried foods more often than baked or broiled foods? Yes

Do you drink caffeinated drinks, such as coffee or sodas? Yes

Do you skip meals? No

Give yourself one point for each Yes response and two points for each No response. Section score: _10___

Section 5: Drug Use

Do you smoke or chew tobacco? No

Do you drink alcohol? No

Have you ever used marijuana or other illegal drugs? No

Have you ever abused a prescription drug? No

Give yourself zero points for each Yes response and two points for each No response. Section score: __8__

Section 6: Safety

Have you ever ridden with drivers who were under the influence of alcohol or drugs? No

Have you ever ridden with drivers who speed or disobey traffic laws?no

Do you ever forget to wear your seat belt? No

Do you ever forget to wear a helmet when riding a bike or skateboarding? No

Do you ever play with matches or hazardous materials? No

Is there a gun in your house? No

Give yourself zero points for each Yes response and two points for each No response. Section score: __12__

Section 7: Emotional and Social Health

Do you have hobbies or activities that you enjoy? Yes

Do you give your best effort when doing your work? Yes

Do you find it easy to laugh? Yes

Do you express anger in an appropriate way? Yes

Do you easily fall asleep at night? Yes

Do you share personal problems with someone you trust? Yes

Do you feel well-liked by others? Yes

Do you have someone you can turn to if you need help? Yes

Are your family members and close friends in good health? Yes

Are you generally happy? Yes

Give yourself one point for each No response and two points for each Yes response. Section score: _20___

Total Health Score: __85__

This is mine so it's not going to be accurate for you but please can I get a brainliest.

4 0
3 years ago
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