The type of microscope described above is the <span>phase contrast microscope. This microscope can produce high contrast images useful when observing transparent objects like living cells, microorganisms or tissue samples.
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Black hair because a phenotype is physical characteristics of an organism.
Sand is granular and coarse meaning that water and nutrients can flow through it quite easily. Clay on the other hand has very fine particles that cling together to form a waterproof substance which traps/ stops any nutrients or water from moving down. Clay's also quite difficult for plants to get their roots into. Silt has a texture between clay and sand, meaning that it is the ideal substance as it allows the best water and nutrition movement in the soil. Most plants will grow best in silt, but there are some plants who are more adapted to living in sand (e.g. Marram grass) or clay.
A negative tropism is when a plant grows away from stimulus
Answer: c) biologists would track the number of species and their relative abundance in the gulf coast region in 2009, 2010, and 2011
