Awoman who is pregnant is concerned about eating fish because of its potential contamination with mercury. what would you tell her? a. margarines and vegetable oils are excellent sources of omega-3 fatty acids and can be used instead of fish. b. she can substitute foods with high omega-6 fatty acid content because it can be converted to omega-3 fatty acids. c. she can select fish species that provide epa and dha but are low in mercury such as salmon. d. she can eat any farm-raised fish and be guaranteed to receive the omega-3 benefit without the mercury risk. e. she needs to increase her intake of omega-6 fatty acids to provide protection from heart disease.

Me with biology endocrine system crossword also image left i need with hw

Which of these is a provisioning service people get from the ocean

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.