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Serggg [28]
4 years ago
15

Which best describes the ecosystems on Earth? A. Earth has mostly rainforest ecosystems. B. Separate ecosystems can affect each

other. C. Ecosystems do not interact with each other. D. There are very few types of ecosystems on Earth.
Biology
2 answers:
Vinil7 [7]4 years ago
8 0

Answer:

Separate ecosystems can affect each other.

otez555 [7]4 years ago
4 0

Answer: B. Separate ecosystems can affect each other

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ATP

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Determine whether the following actions are harmful to the environment or help to conserve the environment.
Temka [501]

Coach Luke encourages his football team to wear biodegradable sneakers. The sneakers can be buried in the ground when they are worn out, and after many years, they will decompose like a plant. This condition conserves the environment.  

<h3>What do you mean by Environment?</h3>

An environment may be defined as anything which is present in the surroundings of living entities that is either biotic or abiotic factor.

Chef Sonia uses disposable, nonbiodegradable kitchen towels in her kitchen. She uses them for everything from cleaning up spills to wiping her hands. She ends up using about two rolls in a month. This condition harms the environment because the towels are nonbiodegradable in nature.

The last situation conserves the environment because it utilized solar panels for energy production which is efficient in cost as well as helpful for the environment.

Therefore, each situation is mentioned above.

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5 0
2 years ago
Escherichia coli has a doubling time of 30 minutes. If a culture has 10 E. coli cells at the beginning of log phase, how many E.
Nat2105 [25]

80 E. coli cells will be in the culture after two hours.

<h3>What is culture?</h3>

The development of the human, plant, or animal cells in a lab, as well as microorganisms like bacteria and yeast. Cell cultures can be used for research, medication testing, and infection diagnosis.

Primary (mortal) cultures and cultures of established (immortal) cell lines are the two main categories of cultures.

One of the most crucial methods in cellular and molecular biology is cell culture because it offers a platform for studying the biology, biochemistry, physiology, metabolism, and other aspects of both healthy and diseased cells.

A culture of 10 E. coli cells.

Incubation time = 2 hours = 120min

Doubling time = 30min (120/30 = 4)

So, 1 cell - 30min = 2 cells - 30min = 4 cells - 30min = 8 cells - 30min

Therefore, 8 ₓ 10  = 80cells of E. coli at the end of 2 hours of incubation time.

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6 0
2 years ago
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