While examining a fungal colony, a student described the colony as cerebriform. Was she describing the color, texture or morphology of the colony?
A) Color
B) Texture
C) Morphology
C) Morphology
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In the Sierra Nevada Mountains of California there are many populations of the checkerspot butterfly Euphydryas editha. You notice that females of one population lay their eggs near the tip of a plant's stem (population A)
Females of another population in the same area lay their eggs at the base of the stem on a different type of plant (population B). The young hatch out as caterpillars; they live on the host plant and eat its leaves. Is the information above a complete description of the butterflies' niche? A. Yes, because I know the butterflies live in the Sierra Nevada. B. Yes, because both eggs and adults are described above. C. Yes, because eggs, young, and adults are described above. D. No, because I also need to know what the adults eat. E. No, because a complete niche includes physical and biological factors.
Interpret the pedigree in the accompanying figure by describing each symbol and number. How might the information from this pedigree be used by clinicians and researchers?
What will be an ideal response?
What is the principal substance that causes phototropism in stems or leaves?
a. auxin b. gibberellin c. abscisic acid d. ethylene e. cytokinin
When one atom loses an electron to another atom, it results in the formation of
A. many hydrogen bonds. B. a polar covalent bond and a new molecule. C. a nonpolar covalent bond that is difficult to break. D. cations and anions that can form ionic bonds. E. a covalent bond between the two.