The female gametophyte is the ____
a. pollen
b. ovule
c. embryo sac
d. endosperm
e. ovary
c
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Cancer occurs when ________.
A. Cells do not stop dividing B. Cells stop going through mitosis C. Cells stop growing D. Cells stop dividing
A nonprofit conservation organization receives a sizeable donation and decides to purchase several thousand acres of 'high desert' in southern California. This particular type of desert has an intermediate level of species diversity and few unique species. However, much of the original areas of high desert have been converted to suburban housing and shopping. The decision by the nonprofit to preserve this area was most likely based upon what conservation strategy?
A. Conservation of endemic species hotspots B. Conservation of representative habitats C. Conservation of megadiverse areas D. Conservation of single species
Chromatids are
a. attached at the centriole. b. a pair of chromosomes, one from the mother and one from the father. c. attached at their centromeres. d. identical until crossing over occurs. e. attached at their centromeres and are identical until crossing over occurs.
The genome of humans is remarkably stable, so much so that there are no cancers known to result from genomic instability
Indicate whether the statement is true or false