How do we know that some layers of the earth are solid and some are liquid?

What monomers vary based on the structure of their side chains

To protect endangered species from becoming extinct, it's highly recommended to raise the animals in protected areas such as zoos and wildlife sanctuaries.

What do animal-like and fungus-like protists have in common? Animal-like and fungus-like protists are all unicellular. Animal-like and fungus-like protists are all autotrophic. Animal-like and fungus-like protists are all heterotrophic.

How do scientists confirm a prediction, for scientific method

In what other planets did differentiation occur? Venus Jupiter Mercury Mars Neptune

What is tolerance (explanation)

Which actions should a nurse take while caring for a preschooler whose blood lead level is found to be 25 mcg/dl? select all that apply?

Sodium benzoate is a bitter chemical often used in tiny amounts as a food preservative. The ability of humans to taste sodium benzoate is caused by a dominant allele, t. The recessive allele ("non-taster") is n.

Which of the following correctly displays the sequence of developmental milestones? A) blastula → gastrula → cleavageB) cleavage → gastrula → blastulaC) cleavage → blastula → gastrulaD) gastrula → blastula → cleavage

What is true about DNA