The stage of meiosis that makes descendant cells haploid is _____
a. prophase I
b. prophase II
c. anaphase I
d. anaphase II
e. metaphase I
f. metaphase II
C
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A 7-year-old girl was at summer camp and dove into the lake many times. She complained that water went up her nose a few times. Several days later she is unresponsive and comatose and rushed to the hospital. A cerebrospinal fluid (CSF) specimen is drawn, and several motile amebae are observed. She is most likely suffering from an infection with which of the following pa-rasites?
a. Plasmodium vivax b. Naegleria fowleri c. Ascaris lumbricoides d. Hymenolepis nana
What is a factor that drives animal migration?
A. seasonal availability of food B. availability of mates C. hunting pressure D. intraspecific competition E. tidal patterns
The most widely accepted and supported model that explains the movement of xylem sap is the ____
mechanism.
a. cohesion-tension b. translocation c. pressure flow d. osmosis e. transpiration
Answer the following statements true (T) or false (F)
1.Grasslands, forests, lakes, and deserts are all examples of terrestrial biomes. 2.The rain shadow of a mountain is found on the downwind side of the mountain. 3.All deserts are characterized by being hot and dry. 4.Streams include brooks, creeks, and rivers that carry water and sediment toward the ocean or an interior basin. 5.Nutrient-rich lakes are termed oligotrophic.