How do scientists learn about Earth's core?

A. Earthquake waves

B. Mines

C. Temperature measurements

D. Wells

Every winter, Alice notices that the monarch butterflies seem to disappear from her backyard garden. Then, the butterflies return to her garden each spring.

What is a potential danger of excess cholesterol in the human body?

Which DNA fingerprinting technique examines the length variation of DNA repeat sequences in human DNA? VNTRs (variable tandem repeats) PCR (polymerase chain reaction) analysis STRs (short tandem repeats) mtDNA (mitochondrial DNA) analysis

What factors affect the temperature of seawater

Identify what all organic compounds have in common, and list the four principal classes of or organic compounds

Which are examples of bony fish? lamprey, seahorse, shark tuna, hagfish, lamprey shark, skate, ray pufferfish, goldfish, salmon

How would smoke or pollution affect the process of getting oxygen into your eyes?

Why does the oxygen atom in a water molecule have negative charge?

What is a female cat called answers?

The cladogram of the kingdom Animalia shows the relationship of selected animals based on their shared anatomical features. The black numbered squares represent features that are critical for forming each branch in the animal kingdom.