Ans. The coordinated operations of the bone cells constantly remodel the bone in the tissues. These include the processes of osteoclasts resorbing bone and osteoblasts forming bone. Osteocytes often serve as mechanosensory and coordinators of the process that modifies bone. In an adult person, this process is often controlled by local and systemic factors. Additionally, the development and cell division of bone cells ceases in adult humans.
When the nerve cell extensions in mature creatures are being cut, they are typically confronted with a forest to ward off the warning indications. The cell extensions cannot be further developed as long as these symptoms are present. This implies that the interaction between partner cells cannot be re-founded after it has been killed off.
Inside certain of our bones, such as the hip and thigh bones, lies a soft substance called bone marrow. Typically, stem cells are present. The bone marrow often conceals growth.
Axile placentation is observed in
Family Fabaceae differs from Solanaceae and Liliaceae. With respect to the stamens, pick out the characteristics specific to family Fabaceae but not found in Solanaceae or Liliaceae.
Identify the correct set of statements:
Choose the correct answer from the options given below:
Let S={\(a,b,c\)} be the sample space with the associated probabilities satisfying \(P(a)=2P(b)\) and \(P(b)=2P(c).\)Then the value of \(P(a)\) is
Which are the non-benzenoid aromatic compounds in the following?
Car P is heading east with a speed V and car Q is heading north with a speed \(\sqrt{3}\). What is the velocity of car Q with respect to car P?
Morphology in flowering plants tells us that every plant has two systems such as a root system and a shoot system. The root system digs deep into the ground and structures a system of its own. On the other hand, the shoot system is the one that is above ground level and includes various plant parts.
The descending part of the plant grows under the soil roots. During the germination process, the radicle from the seed grows earthward and branches out. The branches along with the primary root are called the root system. Roots lack chlorophyll and therefore they are not green in color. Roots are positively geotropic and hydrotropic, that is, they grow downwards ground and water, and negatively phototropic, which is growing away from light.
There are three types of root systems found in plants are as follows:
The stem is also an essential element of the plant. It is the ascending portion of the plant axis that bears branches, flowers, leaves, and fruits, as well as aiding in water and mineral conduction. It is the plant's aerial portion, brought about from an embryo's plumule or germinating seeds. Young stems are ordinarily green, but they finally turn woody and brown.