Answer:
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.
This is mostly absorbed as amino acids
The environment is studied at different levels & stages.
Biosphere: The biosphere is the zone in which life exists. It consists of the atmosphere& the hydrosphere alongwith the earth surface where living beings live.
The biome is a community of plants and animals (flaura & fauna).
Community: A community is a group of people/living beings who live in a specific location. It is used to describe two or more populations of different species that exist at same place.
Population: A population is the multiple individuals or living organisms of a single species that live in an area.
The populations are formed by lalrge number of groups of organisms.
Group of populations form communities. The group of all communities form a biome, which exist in the biosphere.
The diagram shows:
<h3><u>Answer;</u></h3>
Glial cells
<h3><u>Explanation</u>;</h3>
- The nervous system is made up of neurons and glia. Neurons are specialized cells that are capable of sending electrical as well as chemical signals
- Glial cells or neuroglia are non-neuronal cells in the central nervous system (brain and spinal cord) and the peripheral nervous system.
- <u>Glial cells are cells that provide support functions for the neurons by playing an information processing role that is complementary to neurons.</u>