When you think about the main purpose of mitochondira (to produce energy; an easy idea how to remember the function of mitochondria in our bodies is to imagine them as energy factories or power plants) it becomes easy to understand why.
Animals (including us) move a lot more compared to plants. For movement you need energy and energy needs to be produced in our bodies in order for us to be able to move. Therefore, we have mitochondria that are bigger. Not only that, animal cells usually also have more mitochondria. All of this is probably done to keep up with the increased energy demands that moving organisms have.
Answer:
The answer is very likely C.
Explanation:
This becomes easy once we remember that DNA and RNA are not identical - which is why they have different names, RNA = 'ribo', DNA = 'deoxy.' This eliminates choice (A). While they are different, they are not incredibly different - DNA and RNA are both made up of nucleotides - they are not however, made up of Amino acids. Amino acids are what they can <em>code</em> for, and subsequently create proteins during protein synthesis. This helps us eliminate (B). Finally, we know that in order for something to have base <em>pairs</em> it needs to be double stranded - which RNA is not. Which means that because RNA is not double stranded (its singly stranded) that the answer cannot be (D). Leaving us with the only plausible option; (C).
The birds adapted to the changes. Since the large nuts were no longer as abundant because of the large birds, the small birds were left with the smaller nuts. Their larger beaks lost their use since the small nuts did not require such well-structured beaks, so the birds started to develop smaller beaks.
Answer:
A) Ice cream starts dripping down the sides of an ice cream cone: melting
B) Fog is created by using dry ice: sublimation
C) Frost forms on trees on a very cold day: deposition
D) The mirror gets fogged up when you breathe on it: condensation
E) Your wet hair dries after a few minutes: evaporation
F) Liquid glass cools and hardens : freezing
Explanation:
Sublimation process where solid state changes to gaseous state by escaping liquid state.
Deposition process where gaseous state changes to solid state by escaping liquid state.
Condensation process where gaseous state changes to liquid state.
Melting is the process where solid state changes to liquid state.
Evaporation process is a process where liquid state changes to gaseous state.
Freezing is the process in which liquid changes to solid state.
