Answer:
B
Explanation:
XX is female they produce eggs. XY is male. they produce sperm
Chemical factors: This is due to internal stimuli. Changes in the blood such as decrease in O2, increase in CO2 and decrease in PH cause impulse in the carotid artery which stimulates the respiratory centers in the medulla and cause breathing.
Mechanical factors: also called external stimuli. Compression of the fetal chest during delivery forces small amount of lung fluid out of the lungs. This increase in pressure in the chest draws air into the lungs.
Answer:
Subtract 4x4x from both sides of the equation.
y=16−4xy=16-4x
2x+3y=−22x+3y=-2
Replace all occurrences of yy in 2x+3y=−22x+3y=-2 with 16−4x16-4x.
y=16−4xy=16-4x
2x+3(16−4x)=−22x+3(16-4x)=-2
Simplify 2x+3(16−4x)2x+3(16-4x).
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y=16−4xy=16-4x
−10x+48=−2-10x+48=-2
Solve for xx in the second equation.
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y=16−4xy=16-4x
x=5x=5
Replace all occurrences of xx in y=16−4xy=16-4x with 55.
y=16−4⋅5y=16-4⋅5
x=5x=5
Simplify 16−4⋅516-4⋅5.
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y=−4y=-4
x=5x=5
The solution to the system of equations can be represented as a point.
(5,−4)(5,-4)
The result can be shown in multiple forms.
Point Form:
(5,−4)(5,-4)
Equation Form:
x=5,y=−4x=5,y=-4

4x+y=16,2x+3y=−24x+y=16,2x+3y=-2
Answer:
Using irrelevant sites for the task
Explanation:
A the cell, definition - the cytoplasmic division of a cell at the end of mitosis or meiosis, bringing about the separation into two daughter cells.
