Answer:
In direct observation, EVERY INDIVIDUAL in a population is counted. In indirect observation, SIGNS OF AN INDIVIDUAL, such as tracks or nests, are counted.
Explanation:
Direct observation is to involve looking at the actual behavior or occurrence so for your question it would be every individual.
Indirect observation is a result of that occurrence, so for your question it would be the signs of an individual.
A major factor in how the periodic table<span> is organized is the configuration of each </span>element's<span> valence electrons. Because </span>elements<span> in each family have the same number of valence electrons, they tend to have several similar </span>characteristics<span>.</span>
C. A pure chemical substance consisting of one type of atom
It classify living organisms by2characteristics
The water vapor will begin to contract. The particles will begin to bond with each other to seek heat so they're contracting.