What organism is the main producer in freshwater ecosystems?

a. phytoplankton

b. zooplankton

c. anaerobic bacteria

d. none of the above

A woman is 6 weeks pregnant. she has had a previous spontaneous abortion at 14 weeks of gestation and a pregnancy that ended at 38 weeks with the birth of a stillborn girl. what is her gravidity and parity using the gtpal system?

Which of these is a healthy blood pressure: 70/100 210/70 80/120 120/80 180/120 60/20

Bt corn is a genetically modified crop that contains a gene from another species. Which characteristic does this gene give the plant A. Sweeter flavor B. Drought tolerance C. Taller stems D. Insect resistance

What is the function of the atmosphere's ozone layer? It shields Earth from harmful solar radiation. It protects Earth from the sun's heat. It removes pollution from the atmosphere. It provides the oxygen needed for human life.

Dense irregular connective tissue without a synovial cavity would be found connecting the bones involved in which type of joint?

What do scientists think forms the Moon's core?

What organ stores bile when food digestion is not occurring?

Are all mixtures solutions? Are all mixture? Give an example

What first walks with 4 legs, then 2 legs, then 3 legs?

Which symptom would the nurse most likely observe in a client with cholecystitis from cholelithiasis?