#Question id: 342
#Unit 1. Molecules and their Interaction Relevant to Biology
In a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by ________.
#Question id: 11504
#Unit 9. Diversity of Life Forms
Which organisms represent the common ancestor of all photosynthetic plastids found in eukaryotes?
#Question id: 8856
#Unit 9. Diversity of Life Forms
Which of these can be observed in the
mesohyl of various undisturbed sponges at one time or another?
1. amoebocytes
2. spicules
3. spongin
4. zygotes
5. choanocytes
#Question id: 278
#Unit 1. Molecules and their Interaction Relevant to Biology
DNA wraps around an octamer of histones to form bead-like structures called ________.
#Question id: 9268
#Unit 6. System Physiology – Plant