In mammals, blood returning from the head will pass through the ________ just before entering the right atrium
A) left atrium
B) superior vena cava
C) inferior vena cava
D) aorta
Answer: B
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When grouping organisms, which classification is most general for a particular type of organism?
A. Kingdom. B. Phylum. C. Order. D. Family. E. Species.
_____ are mycorrhizal fungi with hyphae that grow into a root cell and branch inside it
a. Glomeromycetes c. Zygote fungi b. Chytrids d. Club fungi
Why is taking the first breath hard work for the newborn?
A) The lungs are not elastic. B) The intercostal muscles are not mature enough. C) The diaphragm is inflexible. D) The surface tension within the alveoli is very high. E) The respiratory center in the medulla is not yet mature.
Members of the Euglenozoa move within their habitats with the aid of
A. flagella. B. tests. C. cilia. D. pseudopodia. E. pellicles.