Answer:
1. a fluid-filled tube in which sound waves trigger nerve impulses.
Explanation:
The cochlea is one of the three areas of the inner ear. Its structure resembles the shell of snails. The cochlea is present anterior to the vestibule and is bony. It has several hair cells present in the organ of Corti. Hair cells serve as auditory receptors. As the sound waves enter the organ of Corti, the hair cells sense them and send the nerve impulse to the brain via the cochlear nerve. The brain interprets the pitch of the sound.
Answer:
The theory begins with the continents beginning as one united land mass called Pangea. When the tectonic plates began to move these land masses apart the plants and animals that were on them were separated around the world, but they all began on the same land mass so that is why they are so similar.
Answer:
<u>B. shared</u>
Explanation:
Closely related organisms have shared characteristics. They have shared characteristics because they're related. It cannot be different because they're related. It also cannot be modified or ancient characteristics as both of them wouldn't make sense. Modified characteristics? Ancient characteristics?–– just no.
Answer:
Atoms are the smallest units of matter that still retain the fundamental chemical properties of an element. Much of the study of chemistry, however, involves looking at what happens when atoms combine with other atoms to form compounds. A compound is a distinct group of atoms held together by chemical bonds. Just as the structure of the atom is held together by the electrostatic attraction between the positively charged nucleus and the negatively charged electrons surrounding it, the stability within chemical bonds is also due to electrostatic attractions. To illustrate further, consider the two major types of chemical bonds: covalent bonds and ionic bonds. In covalent bonds, two atoms share pairs of electrons, while in ionic bonds, electrons are fully transferred between two atoms so that ions are formed. Let’s consider both types of bonds in detail.
Explanation:
