Nerve cells are functionally classified<span> as sensory neurons, motor neurons, or interneurons. Sensory neurons (afferent neurons) are unipolar, bipolar, or multipolar shaped cells that conduct action potentials toward or into the central </span>nervous system<span>.</span>
Both aquatic and terrestrial
organisms must have a respiratory system across which gas exchange can take
place
A respiratory system is a
biological system which consists of definite organs and structures used for gas
exchange in animals and plants. In most aquatic organisms such as fish, the respiratory system consist of gills in which gas exchange
takes place. The gills is immersed in a watery environment and water flows
over it by a variety of active or passive means. In terrestrial organisms,
gas exchange takes place in the lungs.
Answer:
Two eukaryotic animal cell organelles that have roles similar to the organs of the human digestive system are lysosome and mitochondria.
Explanation:
The lysosome is like our stomach, it is responsible for digesting or breaking down the food consumed by the cell.
A guess based on evidence from the text.
Answer:
They need to replicate the full amount of their DNA so that there are two complete copies for each daughter cell to get one.
The "cell cycle" consists of a resting phase or G0 phase followed by Interphase, which is divided into G1, S and G2 phases. The G1 phase prepares the cell to replicate its DNA, the replication of the DNA then takes place in the S phase, and then during the G2 phase the cell prepares to enter the M phase which is when the actual mitosis or cell division happens.
Explanation: