Answer: True
Explanation:
The ear is a organ found in the body of mammals and other animals that helps in hearing.
The ear consists of outer part and inner part. The outer part of the ear converges the sound waves and the transfers to the ear canal.
The sound is then amplified inside the ear and we hear sound. There is a fluid which is found inside the inner ear contains a fluid that helps in balancing of the body.
Take in- photosynthesis
Return- respiration
Plants takes in carbon during photosynthesis while animals return carbon into the atmosphere during respiration.
Answer:
The signal transduction pathway has at least one step in which the signal is transmitted by the activation of a protein via phosphorylation.
Explanation:
Answer a because its true
Answer:
The correct option is D. The nerve and red blood cells will turn on and off different portions of their DNA, using different genes to make different proteins.
Explanation:
A zygote is totipotent which means it has the ability to differentiate into any cell type found in the body along with the placental cells.
The nerve and red blood cells are specialized cells and they cannot differentiate into any other cell type.
All cells in the body are formed from the zygote. All the cells in the body have the same chromosomes and the same genes. However, these cells become specialized because certain part of the DNA is activated in one type of cell which helps it perform its function. Different genes are activated in different specialized cells which are able to transcribe and translate.
