A, C & D
Usually as cells, and even organisms get larger, their surface area to volume ratio decreases. This is why it is important for cells to retain their relatively small size to keep a larger surface area to volume ratio.
Explanation:
A larger Surface area to volume ratio ensures that the cell can efecitnyl take up nutrients and excrete toxic metabolites. This ensures that the biochemical activities in the ell continue effectively to support the life process.
If cells were too large, it would take time for important substances like nutrients and oxygen to reach the center of the cell. On the other hand, toxic metabolites would accumulate in the cells because the rate at which they are eliminated is very low.
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Answer:
Double stranded RNA may affect gene expression negatively
Explanation:
Double stranded RNA are molecules that can affect negatively the gene expression by the fact that this kind of molecule can be complementary to others RNA molecules, or also to DNA regions on the genome. Therefore, introducing such molecules in mammalian cells can inactivate the transcription of a specific gene by the fact that those molecules could block regions of the genome that code for a gene or by connecting to some RNA molecules by similarity. Such mechanisms will reduce the production (or expression) of a given protein in these cells.
False. Streams lose velocity when the slope of the stream bed decreases.
I think It’s is C ok and bye
Answer:
The metric system measures mass in grams or kilograms, distance in meters or kilometers, and volume in liters. It measures temperature in Kelvin or Celsius degrees instead of the Fahrenheit degrees used in the imperial system. The Basic Unit for Mass The metric system measures mass in grams.