Diffusion is a spontaneous process in which molecules move with their concentration gradient. For example, if you place food coloring in water, the food coloring will slowly diffuse through the water until the entire solution has been balanced.
Osmosis is specifically the movement of <em>water</em> through a semipermeable membrane - meaning a membrane that can let some substances in but keep others out - and, similar to diffusion, it moves with its concentration gradient. For example, if you place a glucose solution sealed in plastic in water, water will move into the plastic to even out the concentration of glucose in the entire solution because glucose is too large to diffuse freely.
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Answer:
c, a, c
Explanation:
Dandelions, roses, and tomatoes are examples of dicots. They have branched veins in the leaves, and their vascular bundles are arranged in a ring. They have taproots.
Dicots or dicotyledonous plants are a sub-division of the flowering plants with the following characteristics:
- <em>Their embryos posses two seed leaves or cotyledons.</em>
- <em>Their flowers parts are usually in multiples of four or five.</em>
- <em>They posses tap roots which develop from the radicle.</em>
- <em>The vascular bundles of their stems are usually arranged in concentric rings.</em>
- <em>The veination of their leaves usually forms a network or branched.</em>
<em>Hence, the correct options are </em><em>c, a</em><em>, and </em><em>c</em><em>.</em>
<span>The insect might be an unknown variation or a new species.</span>
Answer:
Petroleum
Explanation:
Like all fossil fuels, petroleum is a nonrenewable energy resource. This means that it is a resource that cannot be replaced as quickly as humans use up existing supplies. Humans face a problem because once petroleum reserves begin to run out, there won't be enough fuel to power all the automobiles in the world.
