In a population of seals in the Arctic Ocean, the total population is 1,500 seals. The birth rate of the seal population is 12/100, and the death rate is 8/100. How many seals were added to the population in one year? 0.04
60
80
180

Which one of these is a involving in both sexual and asexual reproduction

Elements and compounds are pure substances that cannot be broken down physically into a simpler substance. a physical change doesn’t break the bonds between atoms of a substance or form new ones. compounds can be broken down by a chemical change. a chemical change breaks chemical bonds and/or forms new ones between atoms of a substance. what simple substance would a compound break into? the basic elements that make it up! for example, if you passed a very strong electric current through water you’d break the chemical bonds in water and be left with oxygen and hydrogen. which of the following is an example of a chemical change? a separating water into different glasses b breaking frozen ice cubes with a hammer c running an electric current through water d boiling water to evaporate it on a stove

The first amino acid of a new polypeptide chain is