Receptors that provide animals with information from the external environment are located in the:
- ears
- skin
- tongue
- eyes
- nose
These receptors are known as sensory receptors as they perceive the changes that occur in the external environment and transmit the information to the nervous system.
The name of these receptors located in the respective organ is as follows :
1. Ear - auditory receptor
2. Skin - mechano (cutaneous) receptors
3. tongue - taste receptors
4. eyes - Photoreceptors
5. nose - olfactory receptors
An example of how it detects the changes in the external environment can be understood as follows :
The substances that have odor produce chemicals known as odorants which bind to the olfactory receptors located in the nose which then produces electric signals which are transmitted via the nerves to the olfactory bulb in the brain and the smell is detected.
Answer:
Allele
Explanation:
A gene is a stretch of DNA that code for a specific protein. A gene can exist as two or more alternative forms. These alternative forms of a gene are called as alleles. The alleles are responsible for presence of variants of a particular genetic trait.
For example: The gene for plant height has two possible forms, i.e. two alleles. These are symbolized as "T" and "t". The allele "T" impart tallness while allele "t" imparts dwarfism to the plants.
Answer:
The first, third, and fourth one
Explanation:
statistical question is a question that can be answered by collecting data that vary
Internet,air and connection