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3 years ago

How would I explain the carbon cycle to a 1st grade classroom?

Biology

2 answers:

olchik [2.2K]3 years ago

5 0

Answer:

To a 1st Grader:

Carbon is the magic element that is the basis of life on Earth. All living things contain carbon. Animals breathe it out, and plants breathe it in. Plants, people and animals depend on each other.

The carbon cycle is a process where carbon dioxide travels from the atmosphere into living organisms and the Earth, then back into the atmosphere. Plants take carbon dioxide from the air along with water and photosynthesis from the sun and use it to make food.

Explanation:

The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth. Carbon is the main component of biological compounds as well as a major component of many minerals such as limestone. To a first grader is different because they wouldn't understand what half of these words mean lol.

Anna35 [415]3 years ago

4 0

Answer:

tell them that the carbon is another type of air and then say the cycle (simple version)

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Arisa [49]

Answer:

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Explanation:

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3 years ago

What is the regulatory mechanism that allows e.coli to ignore lactose when glucose is present?

Dovator [93]

Answer:
The regulatory mechanism that allows E.coli to ignore lactose when glucose is present is controlled by Lac Operon.

Explanation:
Lac operon is inducible and and normally turn off. It contain genes responsible for lactose metabolism and expressed when lactose is present and glucose is absent.

Structure of Lac Operon:
Lac operon is composed of following parts as shown in the figure:

1. Catabolic activator protein (CAP):
It acts as glucose sensor and activate transcription of operon through hunger signal (cAMP) when glucose level is low.

2. Promoter:
It is binding site for RNA polymerase enzyme, that start transcription.

3. Operator:
It is binding site for Lac repressor protein. when there is no need of lactose repressor protein bind to promoter and stop transcription.

4. Structural genes:
This region is composed of Lac Y, Lac Z and Lac A genes. These genes are transcribed into lactose when needed.

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3 0

3 years ago

A population of Eastern Cottontail rabbits lives in a particular ecosystem. This population's major predator is the coyote and i

galben [10]

The answer is C because if there are more coyotes, more rabbits would be eaten by them.

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4 years ago

Read 2 more answers

When you perform a three-point test cross to determine the linkage between three genes, you found that distance between the thre

aliina [53]

Answer:

The correct option is b. 0.453

Explanation:

To calculate the coefficient of coincidence, CC, we must use the next formula:

CC= observed double recombinant frequency/expected double recombinant frequency

Note:

• Observed double recombinant frequency=total number of observed double recombinant individuals/total number of individuals

• Expected double recombinant frequency: recombination frequency in region I x recombination frequency in region II.

CC= (7/1000)/0.16x0.08

CC= 0.007/0.0128

CC=0.5468

The coefficient of interference, I, is complementary with CC.

I = 1 - CC

I = 1 - 0.5468

I = 0.4531

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3 years ago

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Mashcka [7]

Habitat is the answer you are looking for i believe

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3 years ago