Answer: It will affect muscle contraction because it is needed for the formation of muscle contraction cross-bridge.
Explanation: During muscle contraction calcium binds to troponin, a protein complex that regulates muscle contraction by exposing the binding site of actin filament. Actin filament active site is where myosin head binds to, creating a cross-bridge using enzyme ATPase to speed the reaction. Calcium ion are needed to activate troponin movement, otherwise it stays in its inactive form blocking the active site of actin filament. Without calcium ions, troponin will not move and there will be no muscle contractions.
The units of evolution are populations and not individuals because a variation or a mutation in an individual is not sure to last or produce offsprings having the same variation or mutation. The proof that a species has truly evolved is when the variation has allowed the species to survive its environment and produce generations carrying the same variation.
2nd option:deforestation decreases biodiversity and the overall population of most organisms.Humans will inhabit the deforested area and will in turn kill many of the organisms, biodiversity is the amount of types of life on said area(the variety) Humans will be the main inhabitants while the original life dies out..So in conclusion biodiversity increases when deforestation decreases
Atomic number Z = 8
as atomic number is equal to number of protons So, there are 8 protons in the oxygen 16 and oxygen 18
And number of protons is equal to number of electrons so there are 8 electrons in both oxygen 16 and oxygen-18.
Number of neutrons = Mass number - Atomic number
so, number of neutrons in oxygen-18 = 18 - 8 = 10
and number of neutrons in oxygen-16 = 16 - 8 = 8
Gills would be your answer