Answer: D - People enjoyed more comfortable lifestyles and increased leisure time.
The mid 1800's was the beginning of the Industrial and agricultural revolution. The invention of seed drill by Jethro Full substituted the conventional seed planting technique. In this age, the industrial revolution, led to the growth of number of industries. This brought about both social and economic changes in the society. Thus thid resulted in people enjoying more comfortable lifestyles and increased leisure time.
Explanation:
<h2>Yeast is used for the leavening of bread. Yeast uses the sugars and oxygen in dough to produce more yeast cells and carbon dioxide gas. This is called multiplication. The carbon dioxide makes the dough rise which gives the bread a light and spongy texture.</h2>
Answer:
Structures that are still present but currently serve little to no purpose
Explanation:
<em>Vestigial structures/organs are general defined as structures/organs that are present but poorly developed without any functional use in the present living organisms but thought to have been fully developed and functional in their ancestors.</em>
Fully developed and functional organs gradually become less developed and non-functional across generations as the environment keeps changing and organisms found lesser use for the organs. An example includes the <u>caudal vertebrae</u> found in man which is kind of useless but thought to have been fully developed and functional in the ancestors of man - the monkeys.
<u>Vestigial organs are often used as one of the morphological evidence of the evolution of living organisms.</u>
B. The neutrons cancel out the protons and electrons