Which of the following protists are NOT included in the Unikont supergroup?
a. amoebas
b. slime moulds
c. Rhizaria
d. plasmodial slime moulds
Ans: c. Rhizaria
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Syntrophic organisms cannot grow fermentatively without a hydrogen-consuming partner organism
Indicate whether the statement is true or false.
Which of the following apply to the demography of human populations today? (Check all that apply.)
_____ Our ecological footprint is decreasing. _____ We are using distributed resources disproportionately—less than 20% of us use over 80% of the energy. _____ We have plenty of resources still untouched. _____ We use almost half of the Earth's land. _____ We use over half of all renewable fresh water sources.
Under typical osmotic circumstances, the cells of the juxtaglomerular apparatus are exposed to which of the following conditions?
1.increased blood pressure and high-solute urine
2.decreased blood pressure and low-solute urine
3.decreased blood pressure and high-solute urine
4.increased blood pressure and low-solute urine
A Treg cell deficiency could result in
A) increased number of viral infections. B) increased number of bacterial infections. C) autoimmunity. D) increased severity of bacterial infections. E) transplant rejection.