What is the genetic makeup of fungal spores?
a. They can be either diploid or dikaryotic.
b. They are always diploid.
c. They are always haploid.
d. They can be either haploid or diploid.
Ans: c. They are always haploid.
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Answer the following statements true (T) or false (F)
1.Lichens and mosses that can grow on and erode rock would be considered pioneer species. 2.All communities eventually reach the climax state, in which all components are consistent. 3.Energy is constantly being recycled within an ecosystem. 4.Raw sewage within a water ecosystem can kill fish because respiration by the microbes in the sewage reduces the concentration of oxygen within the water. 5.In a process called denitrification, bacteria convert NO – to N .
Which of the following are advantages to Tubifex
worms living in low oxygen environments? a. fewer predators b. no limit to their size c. more reproductive possibilities d. increased asexual reproduction e. none of these
Labor is directly triggered by the hormone ________, which also triggers ________ after birth
A) estrogen; milk production B) estrogen; milk ejection C) oxytocin; milk ejection D) oxytocin; milk production
To research health conditions on your own, what source is best?
Internet sites selling products to help improve your health An Internet forum where someone with no scientific or medical training writes an article Articles found in medical literature All of the above