Sara and juan conducted an experiment to test which soil would be best for growing plants. they planted bean seeds in four pots and placed the pots in the sunlight. each pot had a different type of soil. they used all three types of soil seen in the jar: sand, silt, and clay. they also made a mixture of soil using equal parts of sand, silt, and clay. once the seeds were planted, the watered the pots every day and tracked the seed germination and plant growth. what was the dependent variable in the experiment

Aseries of connections of food chain in an ecosystem is called a what

Match the following terms describing electrical events with the correct phases of the cardiac cycle. the ventricular muscle cells depolarize at the start of this phase. during this phase, na+ entry through the funny channels causes the pacemaker potential of sa nodal cells to gradually become less negative until it reaches threshold. the ventricular muscle cells repolarize right before this phase. the cytosolic concentration of calcium in the contractile cells of the ventricle is highest during this phase. a. isovolumetric relaxation b. ventricular ejection c. isovolumetric contraction d. ventricular filling

Both male and female gametes are created during the process of meiosis. the formation of male gametes is called spermatogenesis. after telophase il of spermatogenesis, there would be are all genetically male gametes created that