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damaskus [11]
2 years ago
7

A scientist who wants to study the affects of fertilizer on plants sets up an experiment. Plant A gets no fertilizer, Plant B ge

ts 5 mg. of fertilizer each day, and Plant C gets 10mg. of fertilizer each day. Which plant is the control group.
A) Plant C
B) All of them
C) Plant A
D) Plant B
Biology
1 answer:
jeyben [28]2 years ago
4 0

Answer:

Option C, Plant A

Explanation:

Control group within an experiment is the substance/organism or subject which shall enact as a base for comparison of impact of experiment created on the dependent variables.  

Here, the impact of fertilizer is to be studied on plant. Thus, plant set up is dependent variable and amount of fertilizer is an independent variable. Out of all plants one plants is getting 0 amount of fertilizer hence this plant can be used for comparison with other plants which receives the fertilizers.  

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Answer: B

Explanation:

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2 years ago
Explain why coloured water moved up the stalks
Trava [24]

Answer:

water molecules like to stick together (cohesion) and like to stick to the walls of the tubes of cellulose (adhesion

Explanation:

water moves from roots to leaves. ... Because water molecules like to stick together (cohesion) and like to stick to the walls of the tubes of cellulose (adhesion), they rise up the tubes all the way from the roots to the leaves.

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2 years ago
The evolution of eukaryotic cells most likely involved: endosymbiosis of an oxygen-using bacterium in a larger host cell−the end
igor_vitrenko [27]

Answer:

Endosymbiosis of an oxygen-using scavenger bacterium in a larger host cell−the endosymbiont evolved into lysosomes.

Explanation:

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7 0
2 years ago
Harry had been learning about joints in one of his classes at school. On the way to the emergency room he tried to recall what t
ipn [44]

Answer:

The correct answer is -

1. hyaline cartilage

2.  fibrocartilage

3. hyaline cartilage

Explanation:

1. The hyaline cartilage covers the articular cartilage of the synovial joint that is translucent or clear as glass-like cartilage that has a firm consistency and a high amount of collagen.

2. A symphysis is an amphiarthrotic joint which is a fibrocartilagenous joint that joins with the adjacent bone. This is a very tough or strong tissue.

3. The growth plate of the long bone or epiphyseal plates are examples of synchondrosis,which is a hyaline cartilage composed tissue.

3 0
2 years ago
In Montana, wild huckleberries rely on bears and other herbivores that consume their fruit to spread their seeds. As a result, t
yKpoI14uk [10]

Answer:

The consumption efficiency of huckleberry is high, like in forest ecosystem.

Explanation:

Huckleberry is a term mainly used to describe numerous variations of plants with different colored small berries.  These are a rich source of nutrition for wild bears of Montana.

These plants are residents of acidic and infertile vegetative areas, that is why these species do not grow in Antarctica, central Greenland and parts of the high arctic.

3 0
2 years ago
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