Answer:
They can be produced at low cost
Explanation:
In comparison to several other manufacturing materials, some synthetic polymers such as plastics are more durable cost effective, flexible, faster to produce and reliable With regards to the cost comparison, the resins used for plastic are cheaper to obtain than mining for materials such as metals. In all quantities, it is cheaper to produce and manufacture plastics than to produce metals. Due to the light weight and corrosion resistance of plastics, it is cheaper to store and transport plastics to several locations with different environment without the plastic requiring much effort for transportation or being affected by corrosion.
<span>This cell structure is the vacuoles, which store and transport nutrients, water, solute and cellular waste products. Part of the function of the vacuoles is the hydration of the cell. The content of the vacuole allows the cell to have a larger contact surface between the cytoplasm and its environment which increases the turgor pressure and keeps the cell hydrated.</span>
Answer:
Many cellular processes use similar mechanisms to achieve different goals.
Explanation:
<em>Metabolic pathways are series of enzyme-catalyzed reactions. Enzymes interact to remove and add phosphate groups to molecules or to move protons across a membrane. The same as in cell signalling, where the receptor proteins interact with specific molecules and often remove or ad phosphate groups. The phosphorylation of receptor proteins is very close to the process steps in metabolic pathways but with a very different function. </em>
<em>In metabolism phosphorylation is a method of transferring energy, in cell signalling it transmits information.</em>
<span>Which of the following is a structure in some plants that produces male sex cells?
Answer: antheridium
</span><span>What is a life cycle that alternates between sexual and asexual reproduction called?
Answer: alternation of generations</span>
