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mafiozo [28]
3 years ago
12

Which of the statements would BEST serve as a topic sentence for a paragraph?

Biology
2 answers:
kogti [31]3 years ago
7 0

Answer:

A)Walt Whitman changed the way Americans thought of poetry.

Eliminate

Explanation:

Your topic sentence needs to be broad and each sentence of the paragraph should get more and more specific. Kind of like an upside down triangle.

( I'm in high school taking college courses and  learned this from my college professor so I am very confident in this answer)

lora16 [44]3 years ago
4 0

Answer:IT IS NO ANSWER

Explanation:

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Plz help quickly
densk [106]

Answer:

The correct answers are A, B and D. The Clean Air Act was important because it emphasized cost-effective methods to protect the air; encouraged people to study the effects of dirty air on human health; and created a regulation that makes any activities that pollute the air illegal.

Explanation:

The Clean Air Act is a federal federal law designed to control air pollution nationwide. The Environmental Protection Agency (EPA) is required to develop and enforce the regulations to protect the general public from exposure to air pollutants that are known to be dangerous to human health. The 1963 law established a basic research program, which was expanded in 1967. The main changes to the law, which require regulatory controls of air pollution, were promulgated in 1970, 1977 and 1990.

The 1970 amendments significantly expanded the federal mandate by demanding broad federal and state regulations, both for fixed sources of pollution (industrial) and mobile sources.

In 1990 provisions were added to deal with acid rain, depletion of the ozone layer and toxic air pollution, and a program of national permits of fixed sources was established. Also new requirements were established for the reformulation of gasoline, the adjustment of Reid vapor pressure (RVP), which measures the volatility of gasoline; and the norms to control the evaporation emissions of the gasoline.

The Clean Air Act is important because it was the first important environmental law in the United States to include a disposition regarding citizen demands. Numerous local and state governments have promulgated similar laws, either the execution of federal programs or to fill important loopholes at the local level in federal programs.

4 0
3 years ago
Read 2 more answers
Why do embryologist study embryos?
ch4aika [34]
Embryologist study embryos because Embryology is central to evolutionary developmental biology ("evo-devo"), which studies the genetic control of the development process (e.g. morphogens), its link to cell signalling, its roles in certain diseases and mutations, and its links to stem cell research.
4 0
3 years ago
Please answer this for me​
8090 [49]

Answer:

Im pretty sure its A the phagocytes.

Explanation:

6 0
2 years ago
Suppose an experimenter becomes proficient with a technique that allows her to move DNA sequences within a prokaryotic genome. I
Wewaii [24]

Answer:

D) The lac operon will function normally.

Explanation:

  • The promoter area can be described as the area that causes the transcription to initiate for a particular gene. Promoters may be near the genes from which they initiate transcription or they may display multiple scenes upstream.
  • The lock operon works normally because the promoter area can still enable transcription on many base pairs. Detects repression promoter and works normally.
  • so correct option is D) The lac operon will function normally.

4 0
3 years ago
Which of the following statements is true?
alexgriva [62]

Answer:

Dominant genes are stronger than recessive genes

Explanation:

4 0
3 years ago
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