#Question id: 2115
#Unit 2. Cellular Organization
Which of the following statements about diffusion is true?
#Question id: 10501
#Unit 6. System Physiology – Plant
Which defenses require specific detection systems and signal transduction pathways that can sense the presence of an herbivore or pathogen and alter gene expression and metabolism accordingly
#Question id: 30050
#Unit 7. System Physiology – Animal
In the human heart, the SA node is located at the junction of the superior vena cava with the:
#Question id: 19007
#Unit 13. Methods in Biology
#Question id: 295
#Unit 1. Molecules and their Interaction Relevant to Biology
Which of the following pairs of amino acids could form a covalent disulfide bond to link two polypeptides together in a multi-subunit protein complex