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Gala2k [10]
2 years ago
5

The work of rachel carson and other ecologists revealed the terrible consequences of the overuse of ddt. these ecologists were w

orking at what level of environmental interaction?
Biology
1 answer:
Diano4ka-milaya [45]2 years ago
4 0

The work of Rachel Carson and the other ecologists has revealed the terrible consequences of the overuse of DDT. These ecologists worked at the ecosystem level of environmental interaction because they studied the depth of relationships between organisms and their environment.

An ecologist studies environmental problems and determines what causes them and how to improve the situations. In research, they gather data and analyze that for importance. Although, DDT (Dichloro Diphenyl Trichloroethane) was developed or invented as the first of the modern synthetic insecticides in 1940.

Hence, Rachel Carson and other ecologists found that overuse of DDT causes harm to the human liver and reproduction. As a result, humans face symptoms like vomiting, tremors, or shakiness. These problems were affecting the ecology and causing environmental disbalance. So those ecologists were working on the ecosystem level to solve the problem.

Learn more about DDT here

brainly.com/question/18046263

#SPJ4

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Answer:

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Explanation:

Overfishing threatens over 60 percent of Caribbean coral reefs. Declines in coral cover and increases in algal cover have been observed across the region. This analysis identified about one-third of Caribbean reefs at high threat from overfishing pressure and about 30 percent at medium threat.

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3 years ago
Genetic drift models?
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3 years ago
Why can’t contour lines cross?
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Contour lines do not cross each other because of the variance in elevation between the lines. H<span>owever, an instance where two </span>contour lines<span> intersect occurs when the elevations are simultaneously </span>crossed<span> at an identical point through a vertical ledge.</span><span>
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3 years ago
What is the difference between biomass pyramid and pyramid of numbers?
Kitty [74]
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3 years ago
Insects and millipedes were among the very first terrestrial animals. Hypothesize what characteristics of their aquatic ancestor
alukav5142 [94]

Answer:

Preadaptations like tegument and body segmentation could have been used by insects and millipedes to survive in terrestrial habitats.

Explanation:

As crustaceans, millipedes and insects have a protective, hard tegument, which surface is frequently smooth. Some groups can also present spines, bristles, or tubercles.  The tegument protects the animals against harmful stimuli of different nature, such as mechanic, thermal, chemical, etc. It is also an effective barrier against pathogen microorganisms and excessive dehydration. In groups like crustaceans and insects, as the external layer gets hard, the tegument constitutes an important support organ. It is composed of a simple, cubic epithelium called hypodermis, and secretes exoskeleton, which is composed of chitin and can also be shaped by calcareous impregnations. Chitin is an impermeable, light y hard substance, that allows life on land without dehydration.   Segmentation (repetition of identical anatomical units) is another characteristic in these groups that have helped to domain terrestrial habitats. It seems like segmentation is highly advantageous from an evolution point of view because it is much easier to adapt each segment separately to environmental pressures, responding to different necessities, than adapting the whole body to it, developing a new organ for each necessity. Also, it is a strategy to defend themselves from predators by rolling up.

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4 years ago
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