An antigen is recognized by lymphocytes to be foreign and causes an immune response. It is important to know about the immune system of the body as well. The immune system is the system that recognizes and defends itself against any viruses, bacteria or any other harmful foreign bodies.
Answer:
The addition of new bone tissue is termed as bone remodeling. In the process of bone remodeling, the tissues of the bone are withdrawn or resorbed from the skeleton and the formation of new bone tissue takes place also known as ossification. The mentioned procedures also monitor the shape of the bones after the incidents like fractures.
In the process of bone remodeling, two types of cells play an essential part, that is, osteoblast that generates new bone and osteoclasts that dissociates a bone. In the process of bone remodeling, the resorption of the bone takes place by osteoclasts, which is succeeded by bone deposition by osteoblasts. In combination, the cells, which are accountable for bone remodeling are called BMU or basic metacellular unit.
Answer: The tissue structure of the liverworts restricts them to a type of environment that affects their size.
Explanation:
Nonvascular plants, also called the Bryophytes in Kingdom Plantae, are simple plants that grow in damp places on land and as the name implies, are non vascular plants( that is, they lack vascular tissues). There are three types of nonvascular plants which includes:
--> Mosses
--> liverworts and
--> hornworts.
Liverworts are restricted to a particular size through the type of tissue they have ( non vascular) because it predisposes them to lack conducting vessels like the phloem and xylem found in vascular plants which aids in conducting water and food to various parts of the plants. Also they do not grow tall like the vascular plants because they lack the qualities that will enable them do so, such as roots, stems and leaves.
Nonvascular plants are low-growing, reproduce with spores, and need a moist or damp environment.
Animals have centrioles to form spindle fibers during prophase. The centriole divides cells. Plants dont have them because they have microtubules instead. they dont need centrioles. Plants are capable of forming a circular loop of microtubules around the future plane of division prior to prophase called the preprophase band, rather than centrosome. Basically- plants don't need it. They have a different way of cell division.
---Source from another user who asked the same question.
The average time that a person with Alzheimer's disease
lives after diagnosis is 8 years. The
affective losses of Alzheimer's disease refer to losses noticed in the
individual's Personality. the following
is an effective communication technique that should be included in the teaching
plan for the family members whom Alzheimer's disease has been diagnosed is use simple, familiar words, along with short
and simple sentences.
