A cross-sectional view of a log shows a concentric pattern. Which part of the stem gives rise to this pattern?
B. Xylem
as it contribute for most of a tree's growth in diameter.
Answer:
The correct answer is D
Explanation:
The primary function of the large central vacuole in a plant cell is to maintain turgor pressure against the cell wall of the plant. This vacuole also perform other functions such as storage (water and other nutrients) and waste disposal. When this vacuole is damaged in plant cells, the cells may no longer be able maintain turgor pressure and store materials (water inclusive). Also, <u>If the cell cannot store raw materials via the large central vacuole, the chloroplast will lack the raw materials required for photosynthesis</u>.
The patellar reflex can be defined as the kicking movement of the lower leg which occurs with a sudden twitch when the patellar tendon of a person is tapped. This patellar tendon is present below a person's kneecap. This reflex happens only when the leg is bended. It is impossible for patellar reflex to occur if the leg is straight as the quadriceps muscles are already contracted and a sudden kicking movement of the leg in such state could not be elicited. The patellar reflex protects the quadriceps from stretching too much.
Solar system
Planets orbit around the Sun.
Helps with oxygen and stuff
