The outer ear consists of two things and they are the auricle and the ear canal , which is also called the auditory canal.
The auditory canal goes from the outer ear to the middle ear.
The auricle is what we see of the ear...the physical part of the ear. It can be called the pinna as well.
I hoped that this helped and good luck.
Answer:
Variation can be acted on by natural selection.
Explanation:
Variation are the difference that exist in the organism in terms of the body size and can be acted upon by natural selection.
Natural selection could act on the owl body size, favor the selection of owl with small body size especially when resources available are limited and can only sustain small number of individuals leading to availability of owl with small body size in such area and a gradual reduction in the number of owl with large body size.
Answer:
the main body system is circulatory system?
Enzymes can be divided into two groups, intracellular and extracellular enzymes.
Enzymes formed and retained in the cell are known as intracellular enzymes. They are found in the cytoplasm, organelles and the nucleus of the cell. Examples of such enzymes are DNA polymerase, RNA polymerase and ATP synthetase.
Extracellular enzymes are produced in the cell then packed and secreted from the cell. This kind of enzymes catalyze reactions outside the cell. Most digestive enzymes are extracellular enzymes . Examples of such are amylase, zymase and cellulase
99% of the tubular fluid is reabsorbed back to the blood stream
