Lysozyme is an important antimicrobial substance found at high levels in which food?
A. Fruits
B. Fish
C. Eggs
D. Vegetables
Answer: C
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These birds resemble each other, but live in vastly different geographic areas. What is their evolutionary relationship?
1.They cannot be related if they lived on different continents.
2.They are vestigial forms of one another.
3.They resemble each other outwardly but are very different internally.
4.They all had a common ancestor.
This process reproduces many varieties of fruit trees and other plants by making cuttings of the plant and rooting the cuttings.
A. cloning B. sexual reproduction C. meiosis D. somatic cell transfer
Scientists use shared biological components to determine relationships among the three domains of life. What is an example of an organelle used for this purpose?
What will be an ideal response?
Mammals are the only vertebrates to possess
A. single loop circulation. B. hair. C. live birth. D. a four-chambered heart with a pulmonary circuit. E. endothermy.