Which of the following mechanisms is NOT used to propel lymph through lymphatic vessels? A. gravity B. small heart-like pumps C. the milking action of muscles D. pulmonary motion

How do orgasims interact with an ecosystems

After cytokinesis, how many cells have been formed from the parent cell?

Which of the raw materials used in photosynthesis has been linked to global warming? A. water B. oxygen C. carbon dioxide D. sugar

In an ocean, the parrotfish feed on marine plants, big fish feed on parrotfish, and sharks feed on the big fish. What are sharks in the food chain? producers primary consumers secondary consumers tertiary consumers decomposers NextReset

In which cell if plant there is most chloroplast?

What protect the testes

For the moment magnitude scale, each increase on the scale represents 31.5 more energy released by the earthquake. Which is a good estimate of how much more motion is there for a magnitude 7 earthquake than a magnitude 4 earthquake? A. 90 times B.

This bacterium causes infection of wounds and gas gangrene. A) Clostridium perfringens B) Enterococcus C) Bacillus cereus D) none of the above

What is the primary function of flagella? A. Digesting food B. Making cells motile C. Expelling toxic compounds D. Performing energy conversions

When blood glucose levels increase, a hormone called insulin is released from endocrine cells in the pancreas. The role of insulin is to return blood glucose levels to normal. Which part of this negative feedback loop is the stimulus?