#Question id: 389
#SCPH05 I Biotechnology
A weak acid HA has a pKa of 5.0. If 1.0 mol of this acid and 0.1 mol of NaOH were dissolved in one liter of water, what would the final pH be?
#Question id: 5017
#SCPH28 | Zoology
Arrange these events from earliest to most recent.
1. emission of lava in what is now Siberia at time of Permian extinctions
2. emission of lava that solidified at the same time as iron-bearing terrestrial rocks began to rust
3. emission of lava that solidified at the same time as rusted iron precipitated from seawater
4. emission of lava in what is now India at time of Cretaceous extinctions
#Question id: 1043
#SCPH06 I Botany
Nematodes
#Question id: 19128
#SCPH06 I Botany
#Question id: 1567
#SCPH05 I Biotechnology
Which of the following cell types are responsible for initiating a secondary immune response?