Answer:
This question lacks options, the options are:
A) transporting ions against an electrochemical gradient
B) cell-cell recognition
C) maintaining fluidity of the phospholipid bilayer
D) attaching to the cytoskeleton
E) establishing the diffusion barrier to charged molecules
The answer is B
Explanation:
Generally, oligosaccharides are short chains of polysaccharides/carbohydrates. They make up the structure of membranes including the plasma membrane. Oligosaccharides attached to the protein content of the cell membrane to form a substance called GLYCOPROTEIN. The attached oligosaccharides functions in the ability for a cell to recognize another cell.
According to this question, if an animal whose cell is lacking oligosaccharides on the external surface of its plasma membrane, the most likely impairment would be that of CELL-CELL recognition.
Answer:
ecosystem
Explanation:
An ecosystem is the biological community of organisms that interact with each other and they share the same physical environment. Even though it is man-made, the aquarium still represents an ecosystem. The aquarium itself is the physical environment in which all the organisms in it live. Since all the fishes live together, they interact with each other in one way or another, thus creating an interactive biological community, resulting in a micro ecosystem.
You are testing a hypothesis .
For the given question above, I think there are choices or options accompanied with the questions. Here is what I got.
A. exocytosis
<span>B. phagocytosis </span>
<span>C. diffusion </span>
<span>D. pinocytosis </span>
<span>E. receptor-mediated endocytosis
</span>
The answer is letter C. Diffusion.
<span>Fertilization of the egg triggers the translation of the maternal bicoid mRNA into protein. The bicoid protein then diffuses through the egg forming a gradient.
</span>
I hope this answer helps.