A marine biologist discovers a new tiny aquatic invertebrate species that lacks gills. The most reasonable hypothesis would be that the animal gets oxygen through

A. lungs.

B. diffusion across its skin.

C. extracellular digestion.

D. cephalization.

for an ellipse with a major axis of 25 cm, which one is more eccentric---the one with a distance between the foci of 20 cm? explain.

Which best describes the scientists who contributed to our current body of knowledge? O A. Europeans O B. People of all races O C. White males O D. People from South Asia

What is true about relative humidity? a. It indicates how near the air is to saturation. b. It indicates the actual quantity of water vapor in the air. c. It is the temperature to which a parcel of air would need to be cooled to reach saturation. d.

What's the capstone project? is it important?

How can the type and location of symptoms be used to diagnose the location of a stroke?

Which statement best describes the relationship between activation energy and rate of reaction? O Increasing the activation energy can increase the rate of a reaction. O Reducing the activation energy can increase the rate of a reaction.

Definition: this is a haploid cell with half the reproductive information from the parent.

Does a cell use energy when molecules diffuse in or out of the cell? Why?

Below is a list of possible challenges. Check all errors that you mentioned in your answer. Traits other than beak type might affect natural selection. It could take many generations to observe adaptions to a population.

A farmer dug a well but did not find any water Which reasons most likely explain why the farmer did not find water? Check all that apply.