Which organ system is responsible for transporting oxygen throughout the human body?
a. digestive system
b. respiratory system
c. circulatory system
d. excretory system

Prior to the development of dna fingerprinting, blood type could be used to determine possible parentage. although it might prove someone was not a parent, it could not show if someone was positively the parent, only that he or she might be a parent. which of the following is a true statement that can be made about parentage based on blood typing?

Read the sentence. “yesterday we arrived late for the outdoor concert in the city gardens.” which words in the sentence are adverbs? a. late; city b. yesterday; outdoor c. yesterday; late d. outdoor; city

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?