Answer: Kingdom, Phylum, Class, Order, Family, Genus, and Species.
Explanation:
Answer:
Both Cohesion and adhesion play an important role in the upward movement of water through a plant.
Explanation:
Water is absorbed by the roots and transported by xylem tissue to various parts of a plant body such as stem ,leaf .
During the transportation of water molecules through the xylem tissue formation of hydrogen bond occur between the water molecules. A single hydrogen bond is weak but collectively they exert a very strong interaction.As a result a water column is established in the xylem tissue. This is called cohesion.
Adhesion deals with the interaction of water column with the wall of the xylem tissue.
Answer:
Plants are multicellular eukaryotes. They have organelles called chloroplasts and cell walls made of cellulose.
Plants also have specialized reproductive organs.
Almost all plants make food by photosynthesis.
Life as we know it would not be possible without plants.
Answer:
When a neural impulse reaches the end of an axon, it causes the tiny oval sacs at the end of the axon to release chemicals called neurotransmitter.
Answer:
Na+ only
Explanation:
Depolarisation of membrane refers to the change in the resting membrane potential of the membrane of a cell which is usually -70mv to a more positive value.
This value changes when the positive ions move inside the cell which increases the positive charge inside the cell.
In the myocardial cell, the sodium ions move inside the cell which changes the potential towards the more positive side as a result of which the signals for contraction arises.
Thus, Na+ only is correct.
