The conversion efficiency from herbivores to carnivores is the least efficient of the tropic levels with an average conversion of

a.

1 – 5%

b.

0.5 – 1%

c.

7 – 12%

d.

15 – 20%

Dna is always read in the whereas rna is read in .

African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.

Freckles are a dominant trait in humans. both of the girls have the genotype ff for freckles. if either one marries a man with no freckles, what are the chances that their children will have freckles?