Answer:
When viewing a specimen in a microscope, what allows to physically see the image are both lenses, eyepiece and objective.
Explanation:
In optical microscopy, the lenses used to observe microscopic samples play an important role and are necessary for the study of such samples.
- An objective lens is the first to capture the image, providing clarity and proper focus, as well as eliminating color or shape distortions.
- Eyepiece lens obtains the image provided by the objective lens and enlarges it, so that the observer can appreciate the characteristics of the specimen studied.
Regarding other options:
- <u><em>Stage</em></u><em> allows to see the prepared sample, ready for its study, but the microscopic characteristics are not appreciated.
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- <em>The </em><u><em>eyepiece and objective</em></u><em> work together to provide a proper microscopic image.</em>
Yes, the cell membrane regulates what enters the cell and leaves the cell. The cell membrane is a fluid mosaic consisting of a phospholipid bilayer and integral and peripheral proteins. The proteins of the membrane serve many purposes: transport, receptors, etc. The cell membrane is amphipathic, meaning is has hydrophilic and hydrophobic regions.
Answer:
A. All organisms have a common biochemical evolutionary origin.
Explanation:
Genetic code is the biological mechanism by which the DNA in our body is used to synthesize protein needed for growth and development. The genetic code comprises of all the possible 64 codons i.e. a group of three nucleotides that encode an amino acid.
One of the characteristics of the genetic code is that it is UNIVERSAL. This means that all known living organisms make use of the same genetic code and hence, this portrays that all living organisms share a common biochemical evolutionary origin.
Answer:
nucleus
Explanation:
Nucleus are the brain of the cells which control the behaviour, metabolism, and interaction with others.
