A is 100% right. Maybe B also could be right but not sure about it cos it should be genes
Answer:
Heart is a muscle with 4 chambers while lungs is an organ and exists in pair
Explanation:
Heart is a form of muscle which has 4 chambers namely The right ventricle, the left ventricle, the left atrium, and the right atrium responsible for pumping blood while the lung are organs responsible for respiration or breathing. They have tiny sacs called alveoli and are found in pair.
The large beaked birds
it goes up the bigger the beak size as there are more seeds for the larger beaked birds to eat
Answer:
what they do-coded messages
what they are made of-proteins
The correct answer is: E) provide the defense for the CNS
Astrocytes are star-shaped cells found in central nervous system (brain and spinal cord) .Some of their functions include:
• Support of neurons by supporting endothelilal cell of blood–brain barrier,
• Provide nutrients to neurons
• Maintain ion balance and thus controlchemical environment around neurons
• Repair of injuries in the brain
• the secretion or absorption of neural transmitters…
The cells that provide the defense for the CNS are called microglia. Those cells are also glial cells, derived from macrophages and thus, part of active immune defense.
