Which of the following would be considered analogous structures?
A. Which of the following would be considered analogous structures?
B. the wings of a bird and the forelimbs of a reptile
C. the pelvis of a human and the pelvis of a whale
D. the wings of a fly and the wings of a sparrow
E. the flipper of a dolphin and the arm of a human
Ans: D. the wings of a fly and the wings of a sparrow
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An attenuated strain of a pathogen
A) has lost its virulence, but may be used to create a vaccine. B) has changed its antigens to avoid an adaptive immune response. C) is more virulent than the regular strains and may cause septic shock. D) is an extracellular pathogen that will be cleared by innate immunity.
A photographic representation of the chromosomes of an organism is called a(n) _______
A. allele variation B. chromosomal spreading C. chromosome picture D. karyotype
Fluid that collects in tissues is returned to the bloodstream by the
A. excretory system. B. digestive system. C. lymphatic system. D. vascular system. E. endocrine system.
What is the major difference between animals and fungi in how they obtain nutrients?
What will be an ideal response?What will be an ideal response?