HI I TAKE ONLINE CLASS FOR FREE FOR CLASS 9-10 I AM I VOLUNTEER FOR THOSE WHO CANNOT AFFORD TUTION ANYONE INTERESTED CAN MESSAGE HERE :)

Why does it matter if osmosis is put into a “scab” or a “nosebleed? ” where would that leave him?

Female luna moths (actias luna) attract males by emitting chemical signals that spread through the air. a male hundreds of meters away can detect these molecules and fly toward their source. the sensory organs responsible for this behavior are the comblike antennae visible in the photograph shown here. each filament of an antenna is equipped with thousands of receptor cells that detect the sex attractant. based on what you learned in this chapter, propose a hypothesis to account for the ability of the male moth to detect a specific molecule in the presence of many other molecules in the air. what predictions does your hypothesis make? design an experiment to test one of these predictions.

Oak and maple trees, chipmunks, white-tail deer, and black bears emerging from hibernation are all organisms that may be found in which biome