Dorsal means back as in the back area. Example~ Many dolphins have a pronounced beak and all have a central dorsal fin and sharp teeth for feeding, mainly on squid and fish.
Answer:
No harm upon ecosystems or the environment, prevention of any harmful contributions to air, water and land pollution.
Answer: The European Union's most important water pollution act is called Water Framework Directive.
The demand for clean lakes and rivers, coastal beaches and groundwater by the environmental organizations and the citizens the commission made water conservation a chief priority under which the Water Framework Directive was made. The Water Framework Directive has some of key objectives like expansion of the scope of water protection for all types of water sources, water managements on the basins of rivers, ensuring proper quality standards, involvement of citizens and correct pricing etc.
Answer: The utilization of different resources requires different adaptations, selecting for different traits.
Explanation:
answers to whole quick check
Birds with larger beaks were better able to utilize the large seeds.
DNA analysis shows that their DNA is almost identical with only minor changes.
The diversity in environments on each island provides many opportunities to study how related organisms have adapted over time.
Scientists observe the frequency of the different forms of the gene and how it changes in response to the environment.
Answer:
directing the synthesis of proteins necessary for proper cell function.
Explanation:
The nucleic acids include DNA and RNA. Instructions on DNA are transcribed into messenger RNA. Ribosomes are able to read the genetic information inscribed on a strand of messenger RNA and use this information to string amino acids together into a protein thus directing the synthesis of proteins necessary for proper cell function.
