Which two of these characteristics are examples of endoskeletons?

A. scales in fish

B. bones in mammals

C. calcium-rich plates in echinoderms

D. appendages in arthropods

Tonya plans to use the lab instrument that is shown below in an experiment. Which property of matter does the instrument measure? mass weight density temperature

What does the earth receive from the sun

What elements does ice cream, lettuce, baby oil, perfume, pencil, wood, diamonds, and plastic all have in common

Adding soap to water disrupts the hydrogen bonding between water molecules. A water strider is standing on the surface of a dish of water. What is most likely to happen if a drop of dish soap is added to the water? A.

Complains of a dry mouth. the medical term for this condition is

Describe what happens to an egg during the first 14 days of the cycle?

In an axosomatic synapse, neurotransmitter is released from?

A 9-year-old child who has cerebral palsy and scoliosis also is mentally challenged and blind. the child is incontinent, has contractures of the elbows and wrists, and sits in a customized wheelchair most of the day.

List five physical factors from the environment that are essential to human life

A brown fruit fly was crossed with a black fruit fly as shown below. What is the probability of a resulting offspring being black? A. 100% B. 75% C. 25% D. 50%