What organelle is necessary for your to make your own food in photosynthesis?

What are nucleic acids

Which of the following was once a volcano under water A: seamount B: ocean trench C: cave D: sea stack

A 5-month-old infant who has a 3-day history of cough and rhinorrhea has developed symptoms of respiratory distress with audible expiratory wheezes and increased coughing. The infant's immunizations are up-to-date.

Can you think of at least 3 ways tephra can be harmful to humans or to the earth

What do all plant life cycles have in common? A. Fertilization produces seeds. B. Sperm cells are carried by the wind to egg cells. C. Diploid and haploid phases alternate. D. Sporophytes are formed by meiosis

Ground squirrels are found in many areas of the United States. They live in underground burrows and are often attacked by birds of prey, coyotes, and boBCats. Which of the following is a limiting factor for a ground squirrel population?

10. Which of the following is an emerging dis- ease that was unknown 50 years ago? a. malaria b. dengue fever C. Lyme disease d. schistosomiasis

You eat a large meal and then hike up a hill. What kind of energy transformation is your body performing? A. Chemical energy to kinetic energy and nuclear energy B. Potential energy to sound energy and nuclear energy C.

Which nervous systems balance each other to provide homeostasis?

The modern classification system is based on A - putting organisms into categories based on where they live. B - putting organisms into categories based on how they reproduce. C - putting organisms into categories based on similar characteristics.