Answer:
K,L,M,N are examples of shells in Bohr's atomic model.
Answer: Yes
Explanation: the added species mosquito can spread the virus
Answer:
False
Explanation:
The blood brain barrier (BBB) is a selective border that prevents the entry of foreign substances into the brain. It is made up of different components including endothelial cells, astrocytes, and pericytes etc.
Of all these mentioned three, the endothelial cells are directly responsible for the selectivity of the BBB. The endothelial cells are bound together by the tight junctions situated between them, impeding the passage of foreign materials e.g. solutes, pathogens etc.
Astrocytes help to maintain the BBB by surrounding the endothelial cells, providing biochemical strength.
The pericytes are located in the basement membrane, where they communicate with endothelial cells. They help to sustain the BBB by stabilizing and monitoring the maturation of endothelial cells via communicating directly between cell membrane as well as paracrine signalling.
<u>Answer:</u>
The control and regulation of body temperature by the sudoriferous glands help maintain the body temperature at 37°C.
<u>Explanation:
</u>
Sudoriferous glands are also called as sweat glands. it is a small tube-like structures that produces sweat in the skin. Sweat glands is one of the type of exocrine gland that possesses duct and contains units for secretion.
Sweat glands present in the human body can be divided into two category namely apocrine gland and Exocine gland.
Answer: D) directional selection
Explanation:
The characteristics of the poppies shifted in response to the changed environment.
