The smallest adult chelicerates are:
a. horseshoe crabs
b. mites
c. scorpions
d. spiders
e. ticks
b
You might also like to view...
Scientists examined the diversity of primary and secondary consumers from intertidal communities in four regions of the world:
Benguela along the coast of South Africa (BEN), California along the coast of North America (CAL), Humboldt along the coast of Chile in South America (HUM), and New Zealand (NZ). The number of organisms per square meter (mean density), which is a unit that represents total biomass of primary consumers (herbivores) and secondary consumers (carnivores), is plotted for each of these four regions on the graph below. Note: Image from Blanchette et al. (2009). Trophic structure and diversity in rocky intertidal upwelling ecosystems: A comparison of community patterns across California, Chile, South Africa and New Zealand. Progress in Oceanography 83: 107-116. After examining the graph, complete the following sentence. The black portion of each bar represents the percentage of [primary / secondary] consumers, whereas the gray portion of each bar designates the percentage of [primary / secondary] consumers from the four intertidal communities. What will be an ideal response?
Kidney __________ are small, tubular structures that interact with nearby capillaries to form urine. Fill in the blank(s) with the appropriate word(s)
A loud sound can be distinguished from a soft whisper due to
a. more neurons depolarize. b. each receptor depolarizes more fully. c. the frequency of depolarizing neurons increases. d. variations in the signals each sound produces. e. more neurons depolarize, each receptor depolarizes more fully, and the frequency of depolarizing neurons increases.
Both alcohol fermentation and lactate fermentation are highly ____ because the fuel is only partially ____
a. efficient; reduced b. efficient; oxidized c. inefficient; reduced d. inefficient; oxidized e. efficient; metabolized