In 1835 carolus Linnaeus classified all things in nature as belonging to either the animal plant or the mineral Kingdom. in 1959, R. H. whittaker developed the five kingdom method of classification, placing all living things into the monera, protista, plant, fungi, or Animal Kingdoms. the diagram below indicates the current method of classifying all living things. which statement best describes the reason for the changes made to the classification system? a. the triplet genetic code has changed over time
b. the human chromosome number changes periodically
c. more fossils were found that provide information on prehistoric environments
d. molecular biology has provided more detailed evidence for the relationships between organisms​

Every compound can be represented by a chemical formula. a chemical formula is the set of symbols showing the elements that make up a compound and their proportions. water’s chemical formula is h 2 2 o. that means a molecule of water contains two atoms of hydrogen and one atom of oxygen chemically bonded. a molecule is a group of two or more atoms bonded together. molecules can range in size from two to thousands of atoms. a molecule of a compound is the smallest unit of that compound. every molecule of water has all the physical and chemical properties of water. that’s because every molecule of water is made of the same elements in the same proportions: two hydrogen atoms and one oxygen! which of the following is a true statement? a every molecule of the same compound will have different properties. b every molecule of a compound has the same proportion of elements. c molecules can be physically separated into smaller units of a compound. d molecules cannot be represented by chemical formulae.

Complete the statements to identify the first two steps of meiosis i. (1 ) the first and longest step of meiosis i is called i. (2)the second step of meiosis i is called i.

Amylase becomes denatured at a temperature of 80°c. during an experiment to study the effect of varyingtemperature on enzyme activity, amylase’s reactivity with starch was measured at body temperature (37°c), andthen again at an increased temperature of 42°c. how would this increase in temperature affect the experiment