1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Neko [114]
3 years ago
7

Which statement about ddt best shows how science has been impacted by society? ddt led to insect resistance. ddt was considered

harmful and was replaced by other pesticides. ddt was the first modern insecticide. ddt was used in wwii to control malaria and typhus.
Biology
2 answers:
Andreyy893 years ago
8 0

Answer:

(B) DDT was considered harmful and was replaced by other pesticides.

Explanation:

DDT (Dichlorodiphenyltrichloroethane) is a chemical used to kill pests or other insects. It is also responsible for controlling malaria during World War II, as mentioned in (D). To date, it is still considered as the most effective pest control to control insects carrying the malaria disease.  

Its controversy was reported when Rachel Carson’s Silent Spring book was released, detailing how the wildlife has been damaged due to environmental impact stemming from the use of DDT. It was found that DDT was responsible for the decline of bird of preys (falcon, eagles) in the United States due to its effects on their eggs.  

We can say from here that (B) was the right answer since due to widespread perception of its toxicity, DDT was banned from use in many countries, despite disagreements from the scientific community who believes that the hysteria over DDT was mostly unfounded.  

qwelly [4]3 years ago
3 0

Answer:

<h2><em>(B) DDT was considered harmful and was replaced by other pesticides. </em></h2>

Explanation:

You might be interested in
The infant begins to suck the breast. the sucking stimulates the to begin to release . in response, the releases, to initiate mi
eduard
That can be true. Everyone (mother) is different. That usually goes away after nursing for awhile.
6 0
3 years ago
Which key feature distinguishes a synovial joint from other joint types?
gayaneshka [121]

Answer: the tree main features of a synovial joint are articular capsule, articular cartilage and synovial fluid.

Explanation:

8 0
3 years ago
Discuss the order in which seed dispersal mechanisms could have evolved
sladkih [1.3K]

The fossil records of primitive plants show a variety of seed dispersal mechanisms that has been adopted by plants at various stages and how they have evolved. The most primitive of this seed dispersal mechanism is the Anemochory

Anemochory is the dispersal of seed through the wind. The seeds have wing like structures and are lightweight to be able to fly away with the wind. They are dull colored and are pale that will prevent the seed from being visible.

Hydrochory is the next order of evolution of the seed dispersal mechanism which became majorly adopted by plants that tend to grow near water sources and those whose seeds are too heavy to fly in the air. One of the best examples is the coconut that falls off on the sea water in the coastal areas and floats to other lands and sprouts to a new plant.

Barochory is the dispersal of the seed through gravity. This is the mechanism where the fruit falls off to the ground due to gravity and grows into a new plant.

Endozochory is the dispersal of the seed through animals. In this case the seed is usually covered with a fleshy edible part which is consumed by the animals and in this process the seed goes into the digestive system of the animal and is excreted in a different place from where the seed can sprout into a new plant.

Ballochory is the dispersal of the seed due to the forceful ejection of the seed by explosive dehiscence of the seed. This lets the plant to place its seeds in a distant area. One of the best examples is the Hura Crepitans which is also called the dynamite tree, named after its exploding fruits.

6 0
3 years ago
Read 2 more answers
How many chromosomes will this daughter cell have?
eimsori [14]

Answer:

Answer: 10 Chromosomes

7 0
3 years ago
If yellow skin (Y) exhibits incomplete dominance with red skin (y), what color of skin would result from the genotype Yy?
GREYUIT [131]

Answer:

Orange skin

Explanation:

Incomplete dominance with the genotype Yy results in a combination of the dominant and recessive traits. In this case the combination of yellow and red skin would be orange skin.

5 0
3 years ago
Read 2 more answers
Other questions:
  • How does the ring of fire relate to the location of earthquake?
    12·1 answer
  • What is the science specifically concerned with the study of humans?
    6·1 answer
  • Compare the composition of sucrose purified from sugar cane with the composition of sucrose purified from sugar beets.
    7·2 answers
  • 4. Describe the view if you were to stand in the umbra of a solar eclipse.
    12·1 answer
  • What would a scientist most likely do to demonstrate the effects of a tsunami?
    7·2 answers
  • What is required to "cook" the oil out of rock?
    5·1 answer
  • Menopause normally occurs between the ages of forty-five to fifty-five, but can be induced prematurely by which procedure?
    6·1 answer
  • Define glyolysis. where does it atke place?​
    8·1 answer
  • Glucose, a monosaccharide, is found in three different polysaccharides: starch, glycogen, chitin. There are differences between
    8·2 answers
  • Choose the following true statement about alr pollution.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!