Darwin discovered that variations in genes better adapt some individuals to their environment. How does this relate to natural selection?
A
Better-adapted individuals are more likely to survive, but would have more competition
having those characteristics
B
Better-adapted individuals are more likely to survive, but less likely to pass along those
genes to offspring.
C Better-adapted individuals are more likely to survive and reproduce, passing along those
helpful characteristics.
D
Better-adapted individuals are more likely to survive, and change during their lifetimes by
selectively using or not using various parts of their bodies.

Aparticle of mass m is projected with an initial velocity v0 in a direction making an angle α with the horizontal level ground as shown in the figure. the motion of the particle occurs under a uniform gravitational field g pointing downward. (a) write down the lagrangian of the system by using the cartesian coordinates (x, y). (b) is there any cyclic coordinate(s). if so, interpret it (them) physically. (c) find the euler-lagrange equations. find at least one constant of motion. (d) solve the differential equation in part (c) and obtain x and y coordinates of the projectile as a function of time. (e) construct the hamiltonian of the system, h, and write down the hamilton’s equations (canonical equations) of motion.

World class speed skaters can skate a 3,000-m course in about 4 minutes.what is their average speed for this course? a. 12.5 m/sb. 1.33 m/sc. 1.25 m/sd. 13.3 m/s

The softest and hardest minerals are: softest hardest