Once a slide is prepared and placed onto the microscope, the magnification and focus need to be altered. Describe how to change the magnification and bring the image into focus using a light microscope like the one in the simulation.

because they are eaten by the frog and the frog getseaten by the snake and the snake by the eagle

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.

its b. greenhouse gasses trap uv rays for heat so that the plants stay alive.

wild parsnip is a perennial plant which reproduces rapidly in areas which have no sign of agricultural activity such roadside or at no tillage open areas. it's considered invasive because it can inhibit the growth of another plant  and its reproduction is fast. there are several harmful effects of this invasive plant although its taproot is edible since it is a member of the carrot family. wild parsnips can cause skin blistering when in contact because of the chemicals it contains, second it inhibits the growth of other plants, it will restrict the growth of animals when eaten and lastly, it drives away natural pollinators like bees.