Choose the correct order of the chambers through which oxygen-poor blood flows in an amphibian
heart.
a. atrium ? ventricle ? sinus venosus ? conus arteriosus
b. atrium ? conus arteriosus ? ventricle ? sinus venosus
c. sinus venosus ? atrium ? ventricle ? conus arteriosus
d. conus arteriosus ? atrium ? sinus venosus ? ventricle
e. ventricle ? atrium ? conus arteriosus ? sinus venosus
C
You might also like to view...
Which one of the following correctly lists the sequence in which the plant cell wall is synthesized?
A. primary cell wall secondary cell wall middle lamella B. secondary cell wall middle lamella primary cell wall C. secondary cell wall primary cell wall middle lamella D. middle lamella primary cell wall secondary cell wall E. middle lamella secondary cell wall primary cell wall
The most common causative agent of otitis media is ________.
A. Aspergillus fumigatus B. Streptococcus pneumoniae C. Candida albicans D. Haemophilus influenzae E. Corynebacterium diphtheriae
Physically, the open ocean is a very stable environment
Indicate whether the statement is true or false
Why is it believed that RNA was the first informational molecule to evolve?
a. RNA molecules can replicate into DNA molecules. b. RNA molecules are more central to modern inheritance than DNA. c. RNA molecules degrade more slowly in solution than DNA molecules. d. RNA molecules are much simpler structures than other macromolecules. e. RNA molecules are able to function as both enzymes and substrates for their own replication.