Which organisms represent the most biomass in an ecosystem? 1) scavengers 2) secondary predators 3) herbivores 4) producers

You need to make 500ml of 7h9(+) media with 1x adn and 30ug/ml of the antibiotic kanamycin. your stock solutions are 10x adn and 30mg/ml of kanamycin. the solvent is distilled water. how much of each component will you need to make the desired final solution?

Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.

How do all types of diffusion/passive transport actually ‘work’ without using even the smallest amount of cellular energy?