In cartilage, proteoglycans form large complexes by attaching to
A) glycosaminoglycans.
B) collagen.
C) hyaluronate.
D) laminin.
E) elastin.
Answer: C
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During which phase(s) of mitosis are chromosomes composed of two sister chromatids?
a. prophase and prometaphase only b. prophase, prometaphase and metaphase c. prophase, prometaphase, metaphase and anaphase d. anaphase and telophase only e. all phases of mitosis
Which of the following male and female reproductive organs is correctly matched with its function
A) ovaries -transports sperm to the vagina B) uterus- site of fetal development C) vagina - transport eggs to uterus D) penis - production of sperm and male sex hormones E) uterine tubes - receives sperm; acts as birth control F) testes - production of eggs and female sex hormones
The number of individuals that can be supported in a given habitat is the:
a. biotic potential. b. density-independent effect. c. carrying capacity (K).
What disease is characterized by erosions in the mucous membrane lining of the gastrointestinal tract, specifically the stomach?
A) Peptic ulcer disease B) Crohn's disease C) Cholethiasis D) Cholecystitis