There
are many ways to estimate ground squirrel numbers. The most common
and popular monitoring technique is the combination of electronically
recorded stress calls and visual counts where ground squirrels
respond physically, vocally or both. You simply count the number of
squirrels in a 100m by 100m area that respond to a hand-held
imitation ground squirrel call tool.
<span>I
hope this helps, Regards.</span>
nervous and chemical responses.
The answer is (b.) ATP and calcium
ATP (Adenosine triphosphate) and Calcium participates in the muscle movement. In a muscle contraction, Calcium ions are released to initiate upon the depolarization of the membrane which is induced by nerve impulses. While the ATP is required to the shortening of actin and myosin filament crossbridges.
Short hair-like projections, many bacteria and unicellular eukaryotes make use of cilia for locomotion. Humans also make use of cilia - they are found in the respiratory system and are used to carry mucus.
The answer is C. Genetic drift is the change of an allelic frequency due to random sampling in a population. When the brown and black bottles are preyed upon compared to the green bettles, their numbers in a population decrease. Therefore the next generations/offsprings of bettles population is more likely to be of green beetles since they will be more in the parent population. The allelic frequency of the allele for green bettles becomes higher than that of brown and black beetles. Eventually, after generations, the black and brown beetles may be eliminated from the population
