Lice are blood-feeding in all life stages. All life stages (including the tiny eggs) are easy to see. Lice cause intense itching in affected areas and pink papules. The only lice that will feed on humans are the human head louse and body louse. None of the human lice are known to transmit any disease-causing pathogens in North America

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.

the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.