Which plant structures are common to all angiosperm? A. spores B. flowers C. cones D. endoskeleton

temperature. Imagine that when a bacterial cell carrying such a mutation is shifted from low to high growth temperatures, RNA polymerases in the process of elongation complete transcription normally, but no new transcripts can be started.

Which of the following is an abiotic factor of a desert? a. cactus b. sand c. lizards d. wildflowers

Ponies on the Shetland Islands in Scotland have short stature, thick hair, strength, and hardiness so they can thrive in their harsh environment. How do you think the DNA of their population has changed over time?

Which of the following usually causes people to underestimate risks to themselves? A. optimism bias B. lack of control C. fear D. media coverage

Which type of macromolecule is made up of subunits that are called amino acids? A.) carbohydrate B.) lipid C.) nucleic acid D.) protein

What could a dog living now and a car living thousnads if years ago have in common

The process of transducing air pressure waves into neural messages that the brain interprets as meaningful sound is known as

Why does photosynthesis require water? a. because water provides oxygen atoms. b. because water provides electrons. c. because water accepts electrons. d. because water acts as a catalyst.

An education guess or rational explanation about a specific phenomenon

What are the technical name for red blood cells white blood cells and platelets?