Which is a basic method of cell-to-cell communication?

a. mechanical signals

b. nerve and blood-transported signals

c. cytoplasmic transfer of signals

d. diffused chemical signals

e. contact-dependent signals?

Productive, species-rich areas and vegetation growing alongside rivers and streams are known as:

Which is not something the respiratory system does?

A nurse in the emergency department is caring for a 9-year-old child with a suspected spinal cord injury sustained while falling off a bicycle. what is the initial nursing action?

What green pigment in plants absorbs light energy?

Which of the foods below would be considered the least nutrient-dense?

The Hematodinium parasite becomes less of a problem for the blue crab when A-the crab is very young B-fishing is thriving in the region. C-the crab moves to less salty water. D-a significant percentage of the population is impacted.

Homeostasis is classified under which of the following A. Cell respiration B. Transcription C. Cell regulation D. Photosynthesis

A ball, with a mass of 10 kg, is dropped from the top of a building, from a height of 20 meters. Explain what will happen to the potential energy if the 10 kg mass is replaced with a mass of 40 kg and the height of the drop remains constant.

Which of the following is a disadvantage of animal endoskeletons? a. Endoskeletons allow organisms to grow large in size. b. Endoskeletons don't need to be molted as an organism grows. c.

A species of cactus is adapted to a desert climate. Over a period of many years, the climate becomes wetter. How will the cactus population most likely be affected by this change? A It will grow as more water resources become available.