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zlopas [31]
3 years ago
8

Why is it so important to control the variables

Biology
1 answer:
QveST [7]3 years ago
5 0

Answer: It is important to control the variables so the evidence from the experiment are as accurate as possible.

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What happens to an animal cell in a hypotonic solution?
kolezko [41]
Animal cell shrinks in a hypotonic solution as content in it moves from higher concentration to lower concentration

Hope this helps!
7 0
3 years ago
Rachael wants to test how sunlight impacts plant growth over time. She will add varying amounts of light to different sets of pl
Mrrafil [7]

Answer:

Independent variable: varying amounts of light

Dependent variable: plant growth

Explanation:

The variable, which are factors that can be altered, in an experiment can either be independent or dependent. An independent variable is one in which the experimenter manipulates or controls in order to bring about an outcome. For this experiment conducted by Rachel, the independent variable is the VARYING AMOUNT OF LIGHTS.

The dependent variable is the variable that responds to changes of the independent variable. In other words, the dependent variable is the outcome of manipulating the independent variable. Hence, the dependent variable is dependent on the independent variable. For Rachel's experiment, the PLANT GROWTH is the dependent variable because it is what responds to changes in amount of light (independent variable).

4 0
3 years ago
This graph shows that bird ranges in the winter have been shifting northward over several decades.
erik [133]

Answer:

1 migration

2 the northern regions have become warm

7 0
3 years ago
What role does the heart play in helping the circulatory system perform its functions?
poizon [28]

Answer:

Blood circulates through a network of vessels throughout the body to provide individual cells with oxygen and nutrients and helps dispose of metabolic wastes

Explanation:

did this help

8 0
3 years ago
Read 2 more answers
What is an anterior pituitary hormone?
kicyunya [14]

Answer:

The pituitary gland refers to a small gland, which is situated in the sella turcica. It is considered the master gland of the body. The pituitary gland comprises two prime parts, the posterior pituitary gland and the anterior pituitary gland. The anterior pituitary gland produces six hormones and discharged them into the bloodstream.  

The following are the hormones produced by anterior pituitary gland:  

1. The growth hormone that monitors metabolism, growth and body composition.  

2. Adrenocorticotropic hormone that instigates the adrenal glands to produce steroid hormones, mainly cortisol.  

3. Follicle-stimulating hormone and luteinizing hormone, also called gonadotropins, which functions on the testes or ovaries to instigate the production of sex hormone, and maturity of sperm and egg.  

4. The thyroid-stimulating hormone that instigates the thyroid gland to discharge thyroid hormones.  

5. Prolactin that instigates the production of milk.  

5 0
3 years ago
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