*** WILL BE GIVING BRAINLIEST *** After a week with lots of rain, runoff has caused a large amount of fertilizer to wash into the ocean from the farms on the California Coast. This caused a bloom in phytoplankton. When these microscopic creatures die after their short life, their decomposition creates an environment in the water with little oxygen, making it toxic to mussels and crabs. Identify two organisms which may benefit from this decline and two organisms (other than mussels and crabs) which may suffer. Explain why this advantage or disadvantage would occur.

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

What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.

Which of the following is not a technology that can be used to conserve resources? a. hydropower b. volcanic power c. natural gas d. geothermal select the best answer from the choices provided a b c d