Why is the ozone layer important to living things?

Which situation is an example of competition that could be found in the grassland? a. two lion populations utilize the same gazelle population as their main food source b. deer eat berries and their droppings seed new areas, creating new berry bushes c. two shark populations utilize the same fish population as their main food source d. lack of sunlight due to changes in the seasons restricts the growth of certain plants

Which of the following is a main difference in cell structure between an onion cell and a human cheek cell? a. an onion cell contains one nucleus, whereas a human cheek cell contains two nuclei. b. an onion cell has a cell wall. c. a human cheek cell contains chloroplasts. d. there is no difference between an onion cell and a human cheek cell. you for your.

Sediment layers stop lateral spreading when: they encounter a barrier they encounter an opposing current they run out of additional sedimentary material