Answer:
Unformed hyphae are called yeast – a substance that is very useful and applicable in many industries and fields. On the other hand, mycelium (plural form – mycelia) is the vegetative part of the fungus. In relation to the hyphae, it is the network collection or bundle of hyphae in one single place
Answer:
Rivers possess different features as they age. Old rivers usually have a low stream (gentle) gradient and low erosive energy. They usually have broad U shape, the water is usually brown and they have flood plains. Seasonal floods are also common.
Answer:
The difference between pinocytosis and receptor-mediated endocytosis is that <u>pinocytosis is nonselective in the molecules it brings into the cell, whereas receptor-mediated endocytosis offers more selectivity.</u>
Explanation:
Pinocytosis and receptor-mediated endocytosis are two types of endocytosis.
The first one consists of plasmatic membrane invaginations that capture extracellular fluid with different nutrients and sends it to the inside of the cell in vesicles. The second one, receptor-mediated endocytosis, consists of receptors on the outside of the plasmatic membrane and clathrin proteins on the interior side of the membrane. When the receptors are in contact with its specific molecule, a vesicle surrounded by clathrin proteins, is formed transporting specific molecules to the cell's interior.
Answer:
Hawaii islands are not formed at tectonic boundaries, but rather at a hotspot. This is a place where hot magma, from deep in the mantle rises to the surface, and through the crust, as the Pacific tectonic plate moves towards the northwest. This magma is very hot because it rises directly from the bottom layers that are hotter than upper mantle. This hotspot is at the boundary of two convection currents in the mantle. The hotspot’s magma pierces through the crust and erupts into a volcanic mountain. The hotspot is more or less stagnant, but in comparison, the tectonic plate above it is moving. Therefore, over time, there will a chain of the mountain as the plate moves over the hotspot.
