Answer:
The traits an organism displays are ultimately determined by the genes it inherited from its parents, in other words by its genotype. Animals have two copies of all their chromosomes, one from each parent.
Explanation:
Answer:
The three types of rocks are Igneous, Sedimentary, and Metaphoric.
Explanation:
<em>Igneous</em> rocks are formed out of melted rocks deep inside the Earth. A distinguishing unique characteristic is that they are hard.
<em>Sedimentary</em> is formed from layers of sand, silt, dead plants, and animal skeletons. A distinguishing unique characteristic is that they are easy to crumble.
<em>Metaphoric </em>are formed when minerals change through heat and pressure underground. Two distinguishing unique characteristics are that they may have many layers and are noticeably hard.
Answer:
B. respiratory illness
Explanation:
Air pollution causes humans to breathe unhealthy air which can lead to respiratory illnesses.
Answer:
To increase the absorption of nutrients into the bloodstream.
Explanation:
The small intestine is the largest organ of the digestive system. It is meant for the absorption of food. The majority of food is absorbed by the small intestine.
For this purpose, the small intestine is long and has villi. These villi increase the surface area of the small intestine which enhances the absorption of nutrients. It directly absorbs into the blood.
The small intestine is also divisible into 3 parts - duodenum, jejunum, and ileum. Most of the absorption happens in jejunum and ileum. In the duodenum, bile mixes with food and break it down.
This is the very reason the small intestine is the longest organ.
