#Question id: 12252
#Unit 10. Ecological Principles
In a study of interactions between plants, ants and caterpillars, the following experimental treatments were imposed: i) Control (both ants and caterpillars are present); ii) Ant removal; iii) Caterpillar removal; iv) Ant and caterpillar removal. Plus (+) indicates presence and minus (-) indicates absence on plants. The results for plant performance (growth) from this experiment are shown in the figure below. Plant performance in all treatments were significantly different from each other. Based on these results, which of the following inferences is correct?
#Question id: 9601
#Unit 9. Diversity of Life Forms
The relative lengths of the frog and mouse branches in the phylogenetic tree indicate that
#Question id: 11008
#Unit 7. System Physiology – Animal
Which of the following events is associated with the first heart sound?
#Question id: 5278
#Unit 8. Inheritance Biology
What is the co-transduction frequency for the A and B genes, from the following dataset?(Assume that there has been selection for the A+ form of the A gene). Genotype Number
A+B+C+ 10
A+B+C- 30
A+B-C+ 20
A+B-C- 40
#Question id: 18971
#Unit 9. Diversity of Life Forms