Answer:
1.a group of individuals of the same species that live in the same general location and have the potential to interbreed is the correct answer.
Explanation:
A population is defined as all organisms of the same species that live in a particular location and have the potential of interbreeding.
The characteristics of the population are
- population density
- population distribution
- Population size
- Age structure
The population is one of the most essential factors that play a major role to stabilize the environment.
Answer:
The lungs look like smokers lungs on the right
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.
Pelican is the answer to your question
