One feature that amphibians and humans have in common is _____
A) the number of heart chambers
B) the type of gas exchange tissues
C) a complete separation of circuits for circulation
D) the number of circuits for circulation
E) a low blood pressure in the systemic circuit
Answer: D
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During which stage of meiosis will the pairs of homologous chromosomes line up?
A) metaphase I B) metaphase II C) metaphase D) anaphase I E) prophase II.
Gene regulation can occur at which of the following steps in the path from DNA to protein?
A. during transcription from a chromosome B. during translation from DNA to RNA C. after protein synthesis D. during transcription from a chromosome and during translation from DNA to RNA E. during transcription from a chromosome, during translation from DNA to RNA and after protein synthesis
UV radiation on the skin can cause ________ .
a. vitiligo b. benign melanoma c . squamous cell carcinoma d. acne e. cold sores
Which types of blood cells are responsible for transporting oxygen?
A. leukocytes B. thrombocytes C. plasma D. red blood cells E. platelets