When a woman breast-feeds, oxytocin causes the milk to move from the mammary glands toward the nipples. What other organ might also react when a woman breast-feeds right after giving birth?
A) thymus B) rectum C) perilymph D) uterus
Answer: D
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Chromosomal sex of a fetus with the sex chromosomes XXY is almost always ____________________
Fill in the blank(s) with correct word
Describe the feeding behavior and biology of amoeboid protozoans
What will be an ideal response?
As a researcher, you are charged with determining the side effects of a new drug. From previous observations, you
suspect that this drug reduces the rate of DNA production (replication) within skin cells of patients using the drug. With the following materials, design an experiment that would answer your questions about the effect of the drug on DNA production. You know that: DNA contains phosphate groups. You have: radioactive isotopes of phosphate (32P), skin cell cultures from various patients, the drug in question, and a device that measures radioactivity. What will be an ideal response?
Bacteria have 80S ribosomes each composed of a 60S large subunit and a 40s small subunit.
a. true b. false