If a couple use the timing method (rhythm method) of birth control, about ______% of couples will become pregnant in a year.
A. 2
B. 10
C. 25
D. 50
C. 25
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What do mitochondria and chloroplasts have in common?
a. both are found in plants cells b. both contain chlorophyll c. DNA is present in both d. ribosomes are present in both e. both are found in plants cells, and DNA and ribosomes are present in both
A hormone that will be secreted from a cell is manufactured by ribosomes ________
A) attached to the endoplasmic reticulum B) attached to the Golgi apparatus C) attached to the plasma membrane D) inside the nucleus
What hormone is tested for in pregnancy tests?
A. progesterone hormone B. hCG hormone C. estrogen hormone D. follicle stimulation hormone E. luteinizing hormone
Answer the following questions true (T) or false (F)
1. Any allergen can cause an anaphylactic response, but usually this dangerous scenario is caused by injected or ingested allergens such as foods, drugs, and insect venoms. 2. If the patient has an allergy to the tested allergen, then the skin develops a lesion consisting of a flattened reddened area called the wheal and a raised, inflamed area called the flare. 3. The blood type AB+ is referred to as the universal donor.