Multiple nuclear divisions without cytoplasmic divisions result in cells called
a. mycoses.
b. coenocytes.
c. haustoria.
d. pseudohypha
Ans: b. coenocytes.
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Latex or resin canals evolved independently in more than 40 different lineages of plants
A. true B. false
Early symptoms of which STD include flattened, painless chancres at the initial infection site; if left untreated in the
long term, this STD can cause mental illness, blindness, and death?
a. gonorrhea b. syphilis c. chlamydia d. trichomoniasis e. genital herpes
How does radiometric dating work?
1.Cooling of molten rock produces particular mineral structures that can be used to determine when a crystal formed. 2.Radioisotope decay speeds up over time, so a graph can be made to predict the date. 3.Although ratios of atoms cannot be determined precisely, their half-lives can be used to predict an approximate date that a crystal formed. 4.Fossils older than 60,000 years can only be dated using carbon 14 since all other atoms will have decayed since then.
Protective membranes called meninges surround the spinal cord as well as the _________
Fill in the blank(s) with the appropriate word(s)