The correct answer is option B, that is, many canaliculi.
The fundamental unit of a compact bone is an osteon that is also called a Haversian system. The Haversian system exhibits a cylindrical composition, which comprises of four components, that is, the Haversian canal, lamellae, lacunae, and canaliculi.
The lacunae are associated together with the help of minute channels known as canaliculi. The canaliculi offer passages through which nutrients can reach the osteocytes and waste components can leave them.
Answer:
Environmental changes.
Explanation:
If you change the habitat they are used to they might not adapt in time causing their species to die down and they could come close to extinction.
D) same four nucleotides
A,G,C,T.
There are a total of 38 chromosomes for a cat
Answer:
All of the above are true.
Explanation:
The structure and function of components of the nervous system are altered by the process of aging. In late adulthood, there is alteration in the neuromuscular junction and the nerve conduction velocity is also reduced.
The age-related slowed response of the nervous system is a result of the loss of nerve fibers from the peripheral nerves with aging. Both myelinated and non-myelinated nerve fibers of the peripheral nervous system are affected by aging and are lost resulting in slowed conduction of nerve impulse.