What is true about translation? Choose ALL that apply. - Each tRNA brings in exactly one amino acid that corresponds to the anti-codon.

- The ribosome has two subunits that work together.

- The order of the amino acids is determined by the mRNA which is transcribed from DNA.

- The order of the amino acids is determined by the ribosome.

- Amino acids are joined by peptide bonds.

What is called the "building block" of life?

State officials are considering constructing a road through a forested wilderness area. this action will likely affect the forest ecosystem in various ways. part a: predict how the construction of a road could negatively affect plants and animals in that ecosystem. (3 points) part b: describe one way that the construction of a road could have a positive impact of the forest ecosystem. (1 point)

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.