the (drug and control) are the variable that you will change throught the conducted investigation.
In nature organisms mate without human interference.this is called selective breeding. hope this helps!
Answer: Option B
Explanation:
The hormones such as follicle stimulating hormone and luteinizing hormones stimulates the ovary producing multiple eggs if taken externally in the form of medication.
There are chances that the multiple eggs and at the time of fertilization more than one egg can get fertilized at the same time and twins can form.
<span>Echocardiography with doppler flow can show numerous abnormalities, including ventricular hypertrophy, dilation of heart chambers, and abnormal heart wall motion. Place patient in a supine position on their left side facing the equipment. Instruct the patient about the procedure. Inform the patient about sensations that may occur, like pressure and the mechanical movement from the head of the transducer. There are no contraindications to the procedure.</span>
Answer: I believe it would be A: epithelial cell, intestinal lining, intestine, digestive system, human body.
Hope this helps!!