Why are lungs divided into very small sac like structures

What forms the channels in the phospholipid bilayer? A) Hydrophilic Heads B) Proteins C) Carbohydrates D) Lipids The question had no answer labels, to I put them on myself.

Eutrophication is caused by

Label the following DNA strand

Are mass a gas or a cloud is a gas

Alcohol's lack of digestion and almost immediate introduction into the bloodstream accounts for the rapid onset of impairment when you consume alcohol. a. true b. false

What is the name of a complex group of organisms that are connected and interact with one another?

Oceanic crust is composed mainly of basalt. continental crust is composed mainly of granite. why does oceanic crust generally tend to subduct under continental crust when plates collide

What is placebo and why is it used in some experiments

What is organ? a. group of different types of tissue that work together to perform a specific function or related functions. b. group of cells that work together to perform a similar function. c.

The temperate phage lambda can undergo two life cycles depending on the environmental cues. During which cycle does phage lambda form a prophage? Choose one: A. lysogeny B. burst cycle C. lytic cycle D. slow-release cycle