Simple diffusion only allows small molecules to pass through
the cell membrane. It is unlikely for dissolved sodium ions to cross the
membrane as it is too large. Simple diffusion only occurs for non-polar small
molecules that can pass through the membrane.
Answer:
True
Explanation:
A paired homologous chromosomes are called bivalents or tetrads (as one pair has four chromatids). During anaphase I, the homologous chromosomes of a bivalent separate from each other. These homologous chromosomes move to the opposite pole of the cell. Anaphasic movement of homologous chromosomes is assisted by spindle fibers. The shortening of spindle fibers pulls the homologous chromosomes to the o[opposite poles.
Answer:
CAM plants temporally separate carbon fixation and the Calvin cycle. Carbon dioxide diffuses into leaves during the night (when stomata are open) and is fixed into oxaloacetate by PEP carboxylase, which attaches the carbon dioxide to the three-carbon molecule PEP.
Explanation:
A. Efficient distribution of goods
Explanation:
The benefit of urban development is in the efficient distribution of goods and services.
Urban centers can have very efficient systems of moving goods from one place to another.
An urban area is a city or densely populated area.
- The population provides rapid ways of getting labor to move goods.
- Technology in such areas also leads to prompt and precise sharing of information about where goods are needed.
The other options highlights the disadvantages of urban development.
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Urban driving brainly.com/question/4729064
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Answer:
According to collision- coalescence theory, formation of raindrop from cloud droplets occurs when cloud droplets collide and coalesce or stick together.
Explanation:
- The only significant difference between a raindrop and a cloud droplet is that a raindrop consist of a velocity that is non-negligible during the fall.
- Larger droplets having higher terminal velocities fall faster and collide with smaller droplets. Often the cloud droplets stick together and coalesce to form a larger droplet.
- This starts a chain reaction where these bigger droplets fall even rapidly, collide with the other droplets in their path and merge with these droplets.
