When someone stands with their knees locked, they may feel dizzy, nauseous, and possibly faint due to a drop in blood pressure. This resulting drop in blood pressure would be classified as the

a

stimulus

b

sensor

c

control center

d

effector

A key element to any sciences to make testable exclamations and predictions based on your observations Marissa has observed that her tulips in front of her house have not bloomed yet but her neighbor across the road has two lips that are blooming in

Does a candle have cells

Describe the changes in Earth's biodiversity over geologic time scales, including mass extinctions.

The volcanoes on Mars resemble ___ on Earth.

Can a grasshopper survive if its head is underwater

Which group of microorganisms is most likely to spoil a freshwater trout preserved with salt? A) Psychrophiles B) Facultative halophiles C) Anaerobes D) Thermophiles E) Hyperthermophiles

What is unique about dogs?

3. The best thing you can do to keep a positive relationship with your supervisor is to

What contains both communities and ecosystems?

Which of the following represents a way that animals in a zoo are influenced by their environment? a. increased natural instincts b. decreased aggression c. unnatural behavior d. increased appetite