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motikmotik
3 years ago
13

What is a good 12th grade science fair experiment?

Biology
2 answers:
frez [133]3 years ago
6 0

Answer: Some of my favorite:

  • Study the effect of landscaping on a building's energy consumption
  • Which pesticide is most effective against cockroaches? ants? fleas? Is it the same chemical? Which pesticide is safest for use around food? Which is friendliest to the environment?

Explanation:

Vlad1618 [11]3 years ago
5 0

Answer:

volcanoe ones r always easy

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How can you test the idea that solar energy is required for the reduction of NADP+ to NADPH?
AysviL [449]

Answer:

In addition to biology, evidence drawn from many different disciplines, including chemistry, geology, and mathematics, supports models of the origin of life on Earth. In order to determine when the first forms of life likely formed, the rate of radioactive decay can be used to determine the age of the oldest rocks (see optional problems C and D, below) exposed on Earth’s surface. These are found to be approximately 3.5 billion years old. The age of rocks can be correlated to fossils of the earliest forms of life. A. The graph compares times of divergence from the last common ancestor based on the fossil record with a "molecular time" constructed by comparing sequences of conserved proteins to determine a mutation rate (after Hedges and Kumar, Trends in Genetics, 2003). Explain how such a molecular clock could be refined to infer time or the evolution of prokaryotes. B. Using a molecular clock constructed from 32 conserved proteins, Hedges and colleagues (Battistuzzi et al., BMC Evol. Biol. 2004) estimated the times during which key biological processes evolved. A diagram based on their work is shown. Connect the time of the origin of life inferred from this diagram with the age of the oldest fossil stromatolites and the age of the oldest exposed rock to show how evidence from different scientific disciplines provides support for the concept of evolution. Evaluate the legitimacy of claims drawn from these different disciplines (biology, geology, and mathematics) regarding the origin of life on Earth. The oldest known rocks are exposed at three locations: Greenland, Australia, and Swaziland. The following application of mathematical methods provides essential evidence of the minimum age of Earth.

Explanation:

6 0
3 years ago
Most human cells range from 10 to 15 micrometers in diameter. What limits how large a cell can get
Mice21 [21]

The relationship between its volume and surface area limits how large a cell can get.

<h3>What is cell range?</h3>

The range of a cell is defined as the quantity of material that can be found within a cell with respect to the surface area.

The range of a cell is limited by the volume and the surface area which means that the wider the surface area the more volume the cell can contain.

Learn more about cell here:

brainly.com/question/13920046

#SPJ12

3 0
2 years ago
Why would a student who wants to be a doctor study chemistry?
Yuliya22 [10]
A doctor need to study chemistry: To know and understand the chemicals processes of matter in the body work which is for example insulin, DNA etc. and to study of all processes in a living organism. The three reasons to study chemistry is because chemistry can be useful in clearing up the natural world, preparing people for career opportunities and producing informed citizens. Some outcomes of modern research in chemistry can lead to technologies that aim to benefit the environment, preserve and produce energy, progress human life and multiply our knowledge of the universe. To help the citizen be a more informed citizen is to let them know how things work makes better decisions and use them better 
4 0
3 years ago
To which group does the pine true?
pshichka [43]

Answer:

Pine trees are conifers!

Explanation:

Your question was a bit confusing but I'm assuming you are asking which group does pine trees belong to. Hope this helps!

5 0
3 years ago
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Your disease ecology team wants to assess risk factors for flea-borne typhus in Los Angeles County, California. You collect data
NemiM [27]
Same question so sorry
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