Why are elements and compounds classified as pure substances?

Define Fitness? According to Dawin's ideas of evolution, what makes an organism have the greatness fitness?

If the temperature outside is a sweltering 41 degrees Celsius, how is a human's body likely to respond to maintain homeostasis? A. constrict bloodflow to the arms and legs B. make the person feel hungry, so he or she will take in more energy C.

Which of these organisms is a member of Kingdom Eubacteria? A. Thermophile B. Amoeba C. Paramecium D. Cyanobacterium

Choose the best definition of sustainability in terms of the environment.

How would a change to the sequence of nucleotides in a DNA segment affects the mRNA from DNA

What happens when both numerator and denominator are negative?

Select all that apply the following are properties of water. • regulates temperature • is more dense as a solid than liquid • acts as a solvent •very chhesive and adhesive • dissolve fats

A 17-year-old gravid client presents for a regularly scheduled 26-week prenatal visit. she appears disheveled, is wearing ill-fitting clothes, and does not make eye contact with the nurse.

A population of skunks live in a woodland habitat. The skunks are unable to leave the habitat because of a large mountain. Describe two reasons this population is not at Hardy-Weinberg Equilibrium?

An example of a posterior trunk muscle is the rectus abdominus. internal oblique. pectoralis major. trapezius.