Please read the following passage to answer question 30. You are trying to determine how a variety of drugs affects skeletal, cardiac, and smooth muscle contractions. When properly stimulated all 3 muscle preparations contract normally. When chemical Z is placed on each of the muscle preparations, you observe the following: A) the skeletal muscle and cardiac muscle preparations no longer contract in response to the stimuli, while the smooth muscle preparation contracts normally. Based on the information in the passage above, please choose the best answer from the statements below. 1. Poison Z caused the above effects by inhibiting the electrical signal going down the T-tubules
2. Poison Z prevented calcium from binding to myosin light chain kinase
3. Poison Z prevented myosin from binding to actin.
4. Poison Z prevented the movement of tropomyosin off the myosin binding sites
5. Poison Z prevented the binding of calcium to troponin 6. Poison Z destroyed the dense bodies.
A) Statements 1,4 and 5 are TRUE
B) Statements 3, 4 and 5 are TRUE
C) Statements 2 and 6 are TRUE
D) Statements 4.5. and 6 are TRUE
E) Statements 2 and 5 are TRUE

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.

if the hares very faster than they are now, and thus the lynx's hunting success rate drops because it will be harder to catch them, the rate that will change will be the pray-rate. the pray-rate will change because more hares will be able to survive, thus more individuals for reproduction, so the end result will be increasing population of hares.

the predator-rate will remain pretty much the same because there will be more than enough pray, but the hunting success rate is stagnant.