Fish don't have ears we can see but they have ear parts inside their heads. They pick up sounds in water through their bodies.
Answer:
a.There are three signaling pathway
1- Reception in which molecule binds to receptor
2- Signal transduction in which activation of intracellular pathway and enzyme occur.
3- Cellular response in which specific response of cell occur according to receptor and ligand.
b. Three types of receptors are
1- autocrine
2- paracrine
3- endocrine.
Explanation:
autocrine receptors are signaling pathway in which cell releases its molecule and bind to its own cell receptor example cancer cells while paracrine in which ligand binds to other nearby cell receptor and it is used during development and in endocrine cell target distinct cell and travel through blood stream like hormones functioning.
Answer:
The correct answer would be C, burning of wood and coal
Explanation:
The burning of fossil fuels (coal, oil, natural gases) increases the greenhouse gases in the atmosphere.
Essentially wetlands<span> are the transition </span>between<span> dry land and water (streams, </span>rivers,lakes<span>, and coastlines), </span>wetlands<span> take many forms including the familiar marshes, swamps and bogs. Yet, not all </span>wetlands<span> are "wet" year round. These "drier end"</span>wetlands<span> also perform significant </span>wetland<span> functions.
Hope i helped :)</span>
