Answer:
C. But see the answer under C. Apparently C is the accepted answer.
Explanation:
A. Not A.I don't think that's a problem for gulls especially on beaches.
B. Not B. Their feather do not look like they need much help in keeping their feathers attached when in flight.
C. This is not really the answer, but it is the best answer of these 4. The actual answer is that the bones are porous for better air intake which provides more oxygen and hence they are better able to fly.
D. Not D. Food has nothing to do with the problem. Birds get an adequate amount of food without their wings being porous. See the answer for C.
Answer:
<u>Attributes of E. coli articulation frameworks </u>
Advantages:
-
Quick articulation
-
Simplicity of culture
-
Significant returns
-
Cheap
-
Genome alterations conceivable
-
Large scale manufacturing quick and practical
Disadvantages:
- Proteins with disulfide bonds hard to communicate
- Produce unglycosylated proteins
- Proteins created with endotoxins
- Acetic acid derivation development bringing about cell lethality
- Proteins created as consideration bodies
- produce dormant proteins
- needs collapsing
<u>YEAST SYSTEM </u>
Advantages:
- Nearness of post translational change
- discharge can be recognized by emission signal
- develop in minimal effort media
- straightforward hereditary control
Disadvantages:
<u>Bacillus articulation frameworks </u>
Advantages:
- Solid discharge
- no association of intracellular consideration bodies
- Simplicity of control
- Hereditarily all around portrayed frameworks
- Exceptionally created change and quality substitution advancements.
- Unrivaled development qualities
- financially savvy recuperation
<u>Animal Cells:</u>
Advantage:
- nearness of post interpretation adjustment
Disadvatages
Issues with creature utilization
Can get sullied with creature diseases
Exorbitant downstream preparing
They're considered to be human like hands. They have a thumb like humans which allows them to grip onto trees and maneuver better. It also helps them with their grip onto branches and trees because they rarely come down from up there, so they need to be able to grip tightly even a sleep. I would say it's natural selection due to evolution.
