Answer:
The external coverings of diatoms are made up of frustule which contains chloroplasts. Chloroplast is a organelle that has chlorophyll pigment that captures light energy from the sun and utilize it for photosynthesis. Slime molds comes under category of fungi. Their cell wall is made up of cellulose. They undergo spore formation, their spore sac get rupture as cellulosic layer is light and releases spores which settles on the decaying plant matter.
Answer:
Explanation:
The materials that are useful are bamboo, plastic, steel, concrete, fabric , textiles, stones, brick, repurposed wood e.t.c.
Materials become useful, when those that uses it use it right and to achieve a specific purposes base on the properties the materials poseses.
The materials that are harmful include asbestos, Mercury containing devices, lead based paints, household hazardous waste, light system, mold, refrigerant containing system.
Materials become harmful when they contain substances or properties that is dangerous or can harm human beings and cause damage to cells.
Specialized proteins in the cell membrane regulate the concentration of specific molecules inside the cell. ... Transporters carry a molecule (such as glucose) from one side of the plasma membrane to the other. Receptors can bind an extracellular molecule (triangle), and this activates an intracellular process.
The process of independent assortment allows a species to be diverse. This process basically means that during meiosis, genes separate from one another independently :) hope this made sense
chlorophyll density, water, carbon dioxide
