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alisha [4.7K]
3 years ago
13

A student conducted an experiment to determine how long it would take for Substance A to freeze. She recorded the substance’s st

ate of matter every five minutes into her data table . In this example, Substance A is a (an) ________________.
A. Control group
B. Independent (test) variable
C. Dependent (outcome) variable
D. Constant variable

Biology
1 answer:
Leona [35]3 years ago
6 0
B. Independent (test) variable
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Which of the following correctly sorts the organizational levels of a ecosystem form least inclusive to most inclusive
Naddika [18.5K]

Answer:

population - community - ecosystem - biosphere

Explanation:

<em>The correctly sorted level of organization of an ecosystem from the least inclusive to the most inclusive would be from population to community to ecosystem and finally to biosphere.</em>

A population consists of a group of organism of the same species living in a particular area at a particular time and capable of interbreeding to produce fertile progeny.

A community represents different population of organisms that are interacting with one another. Several populations make up a community.

An ecosystem consists of different communities of organisms that are interacting with themselves and the non living component of the environment.

A biosphere consists of all regions of the earth where living organisms can be found. It consists of different ecosystems that make up the earth.

<u>Hence, the population is least inclusive, followed by the community, then the ecosystem and finally the biosphere.</u>

8 0
3 years ago
A depositional feature that forms where a stream enters a lake or an ocean is a
dalvyx [7]
It is delta I have done this answer before
5 0
3 years ago
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Which of the following would affect the function of an enzyme?
Blizzard [7]

TEMPURATURE:

Raising temperature generally speeds up a reaction, and lowering temperature slows down a reaction. However, extreme high temperatures can cause an enzyme to lose its shape (denature) and stop working.

pH:

Each enzyme has an optimum pH range. Changing the pH outside of this range will slow enzyme activity. Extreme pH values can cause enzymes to denature.

DIFFERENT SUBSTRATES:

Increasing substrate concentration also increases the rate of reaction to a certain point. Once all of the enzymes have bound, any substrate increase will have no effect on the rate of reaction, as the available enzymes will be saturated and working at their maximum rate.

I got these explanations from khan academy :)

5 0
2 years ago
A farmer sprays his corn crop with pesticides each year. After 10 years, he realizes that the pesticides are no longer functioni
Leokris [45]

Answer:

The pesticides are worn off by the weather.

Explanation:

Becuase the chemicals can only work for a little in the pesticides so when bad weather comes around it finishes the rest of the chemicals in the pesticide.

Hope this Helps :)

5 0
2 years ago
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Humans impact other species through a process called … ?
Wewaii [24]

Habitat Destuction

Hope I helped, sorry if not tho

5 0
3 years ago
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