(30 points) Which scenario describes relationship of mutualism 

A. A polar bear catches a seal for dinner

B. Birds feed off the insects that are stirred up from the grasses as cattle move through

C. Yes oxpecker birds eat parasitic ticks off the backs of zebras

D. A taper latches it’s self in the intestines of a rat feeding off the nutrients eaten by the rat

Ricardo notices that when he plays soccer in the rain, his ball does not seem to go as far after a kick. what is the best scientific question that ricardo could ask about this observation? is soccer better played in the rain or sun? how does rain affect the distance a soccer ball can travel? how does rain affect the speed of a soccer ball? is soccer affected by the rain?

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat

Explain why biological control methods are generally environmentally superior to chemical pest control methods.