Two roller derby players trip each other and fall. One of them breaks a cartilage in her knee, while the other skater breaks a bone in her foot. Which one of them will take longer to heal? Explain your answer
What will be an ideal response?
Bone has an excellent blood supply, which will facilitate the healing process when the tissue becomes damaged. Cartilage has no blood vessels, which makes it more difficult for the cartilage to heal compared with other tissues.
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What type of flower should you plant in your garden if you are particularly interested in attracting butterflies?
A. White day-blooming flowers with abundant pollen and a strong floral scent. B. Pendulous red flowers that are open day and night with no scent. C. Yellow flowers with abundant pollen and nectar and a strong floral scent. D. White, night-blooming flowers with a strong floral scent. E. Purple, tubular-shaped flowers with a light floral scent.
Helicase unwinds and opens up the DNA double helix at the start of DNA replication.
a. Polymerization b. Nucleotide excision repair c. Mismatch repair d. Mutation
In angiosperms, meiosis of cells in the ovule give rise to haploid megaspores. What happens next?
a. Mitosis gives rise to a seed. b. Mitosis gives rise to an egg, a cell with two nuclei. c. Mitosis gives rise to a sporophyte. d. Meiosis gives rise to a dipold egg and a cell with two nuclei. e. Meiosis gives rise to a more megaspores.
The ________ is a type of vascular tissue that conducts water.
Fill in the blank(s) with the appropriate word(s).