Some parasitic flatworms have a very complicated life cycle with more than one host. Infer why this might be adaptive.

The biomolecule that is structurally important in cell membranes is a

Horizontal tectonic movements usually produce which type of metamorphism? heated intrusive regional contact

f Tyler does not eat a diet that includes essential amino acids, his cells will not be able to build nucleic acids. certain proteins. cell membranes. certain carbohydrates.

Which best describes the difference between osmosis and diffusion? Osmosis is the movement of particles from a high to low concentration, while diffusion is the movement of water from a low particle concentration to a high particle concentration.

Once activated, the complement cascade is an ordered process. Each reaction leads to another reaction. This activity asks you to place the cascade reactions in the order they occur, starting with the C1. A. C1 cleaves C2 and C4 B.

A new species of plant arises as an allopolyploid from two other plants, one with a diploid number of 14 and one with a diploid number of 18. what would the diploid number of the new species most likely be?

Where do Earth's convection currents occur? the lithosphere tectonic plates the asthenosphere the subduction zone

One disadvantage to experimental research is that experimental conditions do not always reflect reality. true or false

Which of the following is true about critical analysis of promotional claims? a. It is necessary because consumers generally do not need to purchase goods. b. Advertisements intend to mislead consumers about the goods they portray. c.

How does reduction of air pressure affect evaporation of water?