Answer:
Amoeba;
Explanation:
Amoeba:
Amoeba will contain nucleus (contain the genetic information). Nucleus normally appears as dense circular mass under microscope.
Organelles are present. Organelles appears like distinct masses that are rounded in shape and smaller than nucleus.
Plasma membrane is present.
Bacteria;
Nucleus will be absent in bacteria. The nucleoid normally appear lighter in color under microscope.
Ribosomes will be present. Ribosomes appears like black dots within the cytoplasm.
No plasma membrane will be present.
The remains of plants and animals buried in seas long ago.
Remember, diffusion is when molecules move from an area of HIGH concentration to an area of LOW concentration. Therefore, in this example the molecules on the outside, where the concentration is high, will diffuse to the inside of the circle, where the concentration is low.
Answer:
C. endonuclease
Explanation:
Endonuclease is a type of enzyme which involves the use of its properties to cleave the phosphodiester bond which are available in a polynucleotide chain such as DNA or RNA.
This enzyme cuts the pre-mRNA between the AAUAAA consensus sequence and a GU-rich sequence before translation takes place in a DNA. This explains why the right choice is an Endonuclsease.
Answer: Large intestine
The lowest portion of the GI tract, where water and electrolytes are absorbed and waste is eliminated, is the large intestine.
Explanation:
The large intestine is the lowest portion of the gastrointestinal tract (GI), where the following occurs:
- water is absorbed
- undigested food is passed into, and watet concentrates the waste products, turning them into faeces. This faeces is finally ejected out of the body through the anus.
Thus, large intestine is the answer