Answer:
The correct answer will be-
1. Sensory neurons
2. Interneurons
3. Motor neurons
Explanation:
The neurons are the building blocks of the nervous system which transmits the signals in the form of electrical impulse.
The neurons can be categorized on the basis of their functions into three types:
1. Sensory neuron- The neuron which transmits the signals from the sense organs of the body to the central nervous system.
2. Interneurons- The neuron which connects the sensory neuron to the motor neuron by interpreting the signals from the sensory neurons.
3. Motor neuron- the neuron which transmits the signal from the central nervous system to the muscles and causes the movement of the muscles.
Answer:
The semilunar valves prevent backflow of blood into the ventricles.
Explanation:
The semilunar valves are valves found at the junction between the left ventricle and the aorta and also between the right ventricle and the pulmonary artery. They are cup-like in shape and prevent blood from flowing back into the ventricles which are the pumping chambers.
There are two types of semilunar valves. The aortic semilunar valves and the pulmonary semilunar valves. They are made up of the endocardial and connective tissue.
The closure of the semilunar valves causes the second heart sound detected on the stethoscope.
Diseases that arise from the semilunar valves are caused by its stenosis which is the narrowing of the valves and regurgitation where the heart valves can no longer hold firm enough to prevent the backflow of blood.
The answer to your question is hemoglobin
Answer:
B
Explanation:
The repressor protein blocks the genes from making mRNA
Answer:
Unique Biodiversity. Eighty percent of the world's known terrestrial plant and animal species can be found in forests, and tropical rainforests are home to more species than any other terrestrial habitat. A square kilometer of forest may be home to more than 1,000 species.
Explanation:
