Answer:
The double membrane of the mitochondria is highly folded,and therefore wider when unfolded than that of the nucleus.This is an adaptive feature to increase the surface area for reactions (electrochemical gradient) by accommodating protons pumped into it by the proton motive force(PMF) from the matrix to set up the electrochemical gradients needed to generate the energy needed by ATPase synthase enzymes for ATPs synthesis.
Required number of protons needed to be accommodated by the double membrane to generate enough energy for ATPase synthesis,therefore larger surface area is needed.
Explanation:
This is called the posterior nasal aperture
Hamster is smallest, badger is next then bear and then elephant. hope this helps
Answer:
It allows the animal to undergo rapid, purposeful movement in any direction.
Explanation:
The radial symmetry allows the animal to have a more controlled displacement, this advantage is evidenced in the response to predators which is faster than an animal with bilateral symmetry.
Also predators know its preys so they usually don't get confuse about their shape. No necessarily for having a radial symmetry the animal gets food from all sides ( the seastars have radial symmetry but the movement of their extremities do not allow them to get food from every place around). And sensing the environment is not necesarily an advantage because it don't let you know what is above you.
So an advantage of radial symmetry is the huge capacity of movement.
Is this a multiple choice question? If so, That would give others a better chance.