Answer is : b
Bilateral symmetry
I cant see the image but possibly
a tundra (?)
Answer:
Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time. Organisms and biological communities often vary in a regular fashion along geographic gradients of latitude, elevation, isolation and habitat area.
<h2>Biotic and Abiotic Factors Controls Viral Activity in Sea </h2>
Firstly, biotic are living components and abiotic are non living. Abiotic are the temperatures of ore and other items that are non-living. In the stream, the biotic factor can be small toads, shrubs, fish anything existing in the sea. In the sea, the biotic factors are any great fish or sea beings existing in that region including the any tiny bodies. In this way, all factors and components control viral activity in the sea.
Epithelium is an animal tissue which can be seen as the covering layer of organs. Functions of epithelium are;
1. Provide protection – Provide protection from radiation, pathogens and mechanical injuries.
Example – Skin
2. Absorption – Absorbs materials.
Example: Inner epithelium of intestine.
3. Secretion – Secret hormones, enzymes, sweat and mucus.
Example: Inner epithelium of small intestine.
4. Exchanging substance – Exchange substance between blood vessels and organs.
Example: Epithelium of lungs
5. Expanding when needed – When it is needed, some epithelium (transitional epithelium) can expand.
Example: Epithelium of bladder
