Lead emission since early 1980s have DECREASE DUE TO LEAD FREE GASOLINE.
Lead is a natural occurring element that is found in small quantity in rocks and soils. Lead emission is an important environmental health issue because a very small quantity of lead can cause adverse effects on the nervous system of unborn babies and young children. Because of this, the government took all necessary measures to ensure that its emission was drastically reduced.
The external structures of the prokaryotic cell include a plasma membrane, cell wall, and capsule (or slime layer).
This statement is false.
<u>Explanation:</u>
If the results are the same, a hypothesis turns into a theory first.
A hypothesis is an assumed statement which may or may not be correct. Special experiments are designed under controlled conditions to find out whether the hypothesis is correct or not. If the Hypothesis is correct, it becomes a theory. A theory is a sophisticated explanation of the results which is further refined to make a law.
Answer: Element
Explanation:
really just use ur deduction skills
A cladogram is a type of graph that shows how closely related different types of organisms are in an evolutionary context. It resembles a tree, with various organisms being placed at the end of each branch. If two organisms have a close common branch, they are more closely related than those who have more distant branches. Since DNA, or corresponding protein sequences are more similar in closely related species, and more different in more distant species, a biologist can use those sequences to numerically determine how closely related three species are.