Which of the following specific examples has not been identified and explained by science as a large-scale event that has resulted in major disturbances in the ecosystems?
O Shifts of Earth's continental plates
O Large extraterrestrial objects hitting Earth
O Warmer ocean surface waters in the Pacific region in December and January
Elevated oceanic pH levels due to global warming

Me guys ! software enables between different types of software and between software and hardware. a. communication b. input c. output d. distribution

Which of the following statements is not true about regions? a.) regions have fixed boundaries that are determined by the region's inhabitants.b.) a region can be defined by physical characteristics, such as climate, landform, and vegetation.c.) regions can change over time.d.) a region can be defined by human characteristics, such as language, government, and economic activity.e.) the same location can be considered part of multiple regions.

Weak stimulus will cause a weak action potential. the stronger the stimulus, the stronger the action potential. a. true b. false