Answer: The benthic invertebrates would decrease in population size because they are eaten by the sea ducks and the phytoplankton would increase in population size.
Explanation:
Answer:
Algae are classified based on the
1. type of chlorophyll and secondary pigments
2. method of food storage
3. composition of cell wall
Explanation:
Algae can be classified on the basis of chlorophyll or other secondary pigments. For example, green algae have chlorophyll a and b. Brown algae possess chlorophyll a, c, carotenoids and xanthophyll pigments. Red algae possess a red pigment called r-phycoerythrin.
Other characteristics on which algae can be classified are their mode for storing food and the composition of the cell wall.
My 2 cents below, I tried to think through the other ones:
A. Yes, because an amino acid change has occurred.
(A gene mutation occurred, not an amino acid change)
B. Yes, because all mutations change the resulting protein.
(Sounds correct. Gene -> mRNA -> protein)
C. No, because the amino acid sequence has not been changed.
(The gene mutation means the amino acid sequence <em>has</em> changed)
D. No, because mutations in the DNA do not affect the mRNA sequence.
(They do so)
<span>The brain stem is closest to the spinal cord.</span>
Answer:
1. DNA
2. RNA
3. Nucleus
4. Nuclear membrane
5. Nuclear pore
6. Nucleolus
7. Chromatin
Explanation:
DNA is present in nearly all living organisms. It has the capacity to replicate itself and also the capacity to be transcribed into RNA. The latter contains the genetic codes that are usually translated during protein synthesis.
The nucleus is the most prominent, membrane-bound (nuclear membrane) organelle in the eukaryotic cell. The nuclear membrane has a special pore, the nuclear pore, through which molecules can be transported between the nucleus and the cytoplasm.
Within the nucleus is the nucleolus, a spherical structure whose primary function is to make ribosomal subunits. The genetic materials in the nucleus are in the form of chromatin, a decondensed protein-DNA complex.
