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love history [14]
3 years ago
10

What are some benefits and problems with DDT? Please explain well!

Biology
1 answer:
NeX [460]3 years ago
7 0
DDT was one of the first chemicals in widespread use as a pesticide. Following World War II, it was promoted as a wonder-chemical, the simple solution to pest problems large and small. Today, nearly 40 years after DDT was banned in the U.S., we continue to live with its long-lasting effects:
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Since the 1800’s an increase in selectively breeding dogs for human desired traits increased. How can selectively breeding dogs
alexgriva [62]

Answer:

It makes the dogs at a higher risk of health issues later on in life.

Explanation:

The dogs are usually only bred for looks. Their health is not taken into consideration.

8 0
3 years ago
The only carbohydrate in the homemade fruit smoothie comes from naturally occurring sources of milk and fruit sugar. Use the "i"
Anna [14]

Answer:

Banana.

Explanation:

Carbohydrate is one of the most important biomolecule of the living organisms. Carbohydrates may be defined as the polymer of sugars that are linked together through the glycosidic bond.

The recipe contains strawberry, banana. The greatest amount of carbohydrates comes from the bananas as bananas are the richest source of carbohydrate. The banana contains around 80% of the starch and provide around 22.8 grams of carbs from single banana.

Thus, the answer is banana.

8 0
3 years ago
Some fruit flies are born with curly wings which makes them unable to fly. It has been shown that curly wings are caused by a do
Sergeeva-Olga [200]
It would be 100%. As you can see in my punnet square, there are no boxes with ww, which means that ll of the flies would have curled wings. (this is because you have to have two recessive genes for that gene to show) 
So it would be A. 100%

8 0
3 years ago
Read 2 more answers
15
s344n2d4d5 [400]

OPTIONS:

a. When there are just two other people at the party.

b. When everyone is wearing a nametag.

c. When there are more than 50 people attending the same party.

d. When the need for help from the person who is having a heart attack is very clear

Answer:

c. When there are more than 50 people attending the same party.

Explanation:

Bystander effect is a term used in social psychology to describe the tendency of an individual to intervene in the event of an emergency to offer help to the person needing it, when others are present at the scene of the emergency.

In the case of an emergency just like the scenario stated in the question, where someone develops a heart attack at a dance party, if the party has more people, the slimmer the chance of the person getting help from any of the 50 people at the party, as the presence of others would tend to discourage the any individual from attempting to help the victim having the heart attack.

The situation that would more likely show the bystander intervention effect is <em>"c. When there are more than 50 people attending the same party."</em>

5 0
3 years ago
The scuba diver is a living system. The scuba gear or self- contained underwater breathing apparatus, is a system of air exchang
Verdich [7]

Answer: The carbon dioxide is the output and oxygen is the input of the Scuba apparatus.

Explanation:

The scuba apparatus is a life saving apparatus used by the sea divers. It recycles the exhaled gas and removes the carbon dioxide and compensates for the utilized oxygen gas before the diver is actually supplied with the gas for the purpose of breathing in a circuit. Hence, the carbon dioxide gas is the output and the oxygen is the input.

5 0
3 years ago
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