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Dominik [7]
1 year ago
9

An experiment is done on three tomato plants over a 50 day period to test the following hypothesis: If either fertilizer or comp

ost is used on plants, then a plant that gets fertilizer will grow the most.
The same amount of water and light were applied to each tomato plant. Pot A contained no fertilizer or compost, Pot B contained fertilizer, and Pot C contained compost. Which pot is the control?
Biology
1 answer:
olchik [2.2K]1 year ago
3 0

Pot A that contained no fertilizer or compost will serve as a control in this experiment.

<h3>What is Fertilizer?</h3>

Fertilizer may be defined as any chemical or natural substance which is added to the soil with the intention to enhance the soil productivity.

Pot B contained fertilizer, while pot C contained compost, they will definitely grow more than pot A, but pot A serve as a control for this experiment because it does not contain any added resources into it. Hence, it grows naturally.

Thus, it is well described above.

To learn more about Fertilizers, refer to the link:

brainly.com/question/15854400

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A. What gases were present in Earth's early atmosphere?
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The early atmosphere was probably mostly carbon dioxide, with little or no oxygen. There were smaller proportions of water vapour, ammonia and methane. As the Earth cooled down, most of the water vapour condensed and formed the oceans.

Explanation:

5 0
3 years ago
Before a plant grown in a greenhouse can be planted in a field or garden, it should first be ______off.
Anna [14]

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hardening off

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6 0
2 years ago
What species originally eliminated the wolves in yellowstone so that they had to be reintroduced?.
bezimeni [28]

Humans were the species that originally eliminated the wolves in Yellowstone so that they had to be reintroduced.

I was in the year 1800 that an expansion in an area caused native predators and preys to come close the the domestic livestock. The wolves, being predators, began to feed on the domestic livestock due to its abundance and closeness.

To stop the wolves from feeding om domestic livestock, it were the humans who became the reason for wolves being eliminated. The people in those times were unaware of the natural understanding of ecosystems and hence considered wolves to be a threat.

It was in the 1970's that national awareness was made to protect endangered species. Hence, an effort was the made to reintroduce the wolves into Yellowstone.

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7 0
1 year ago
High up in the Peruvian Andes, an anthropologist can expect to find adult residents who have Group of answer choices increased l
docker41 [41]

Several anatomical and physiological adaptations have been developed by people that live at high altitudes. Option A) increased lung capacities and higher basal metabolic rates.

<h3>What are human's adaptations to high altitudes?</h3>

Several studies have been done to study how humans adapt to living in high-altitude areas.

Populations living in areas of high altitudes, like Andean areas, have genetically adapted to breathe and take oxygen.

These individuals have suffered anatomical and physiological changes that enhance oxygen uptake and transport, making them more efficient.

Among these adaptations, their lungs got significantly larger in volume, while vessels, veins, and arteries volume, dilation, and constriction have adapted to get higher oxygen utilization and transference.

In these populations, gene sequences are involved in vascular control, metabolic hemostasis, and erythropoiesis.

The correct option is A)  increased lung capacities and higher basal metabolic rates.

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7 0
1 year ago
Dr. Adams is conducting a study about the relationship between short stature and shyness. Dr. Adams defines "short stature" as b
Colt1911 [192]
<h2>Operational definition</h2>

Explanation:

  • An operational definition is used to define the terms of a process which is needed to determine the nature of an item such or its properties such as quantity, chemical composition, etc.
  • The degree of operationalization vary.
  • Operational definitions can be defined as labels and concepts in the way they are measured.
  • For example: The operational definition of weight can be like this:
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  • When we hang something from a spring, how much a spring streches.

8 0
3 years ago
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