Answer:
The frequency of the sound.Hope this helps btw
Explanation:
You would need to know how fast the sound waves go through the air.
Answer:
Sensory memory is an ultra-short-term memory and decays or degrades very quickly, typically in the region of 200 – 500 milliseconds (1/5 – 1/2 second) after the perception of an item, and certainly <em>less than a second</em> (although echoic memory is now thought to last a little longer, up to perhaps three or four seconds).
Answer: aragonite oyster shell crab meal
Explanation: aragonite is for calcium and oyster shell also has calcium. Crab meal provides small amounts of protein and minerals
The two adaptations of endo parasites:
- Endoparasites (a parasite that lives in the internal organs or tissues of its host) produce some compounds of anti-enzymes which defuse or inactivate the host's digestive enzymes.
- Endoparasites maintain their osmotic concentration equivalent to or significantly lower than the host cell for easy absorption of host water and nutrients.
There are three main classes of parasites involve:
- Protozoa include Plasmodium, the single-celled organism. A protozoa inside the host can only replicate, or split.
- Helminths parasites are worms.
- Ectoparasites: These are living on, not in their hosts.
Answer:
The case in which facilitated diffusion would be needed is in the transport of large non-polar molecules moving down the concentration gradient.
Explanation:
Facilitated diffusion (FD) involves a form of passive transport, that is, it does not require energy and mobilizes substances across the cell membrane in favor of a concentration gradient.
The passive transport mechanism of FD is necessary only in the case of transport of very large molecules or polar molecules that:
- Cannot be transported by simple diffusion, due to the selective permeability of the membrane
- They follow a concentration gradient, from the place with the highest concentration to the one with the lowest concentration.
For FD to occur, it requires the use of a protein, which acts as a carrier of the molecules to be mobilized.
The other options are not correct because:
<em> A and C. Passive transport, as facilited diffusion, implies movement in favor of a concentration gradient.</em>
<em> B and C. Non-polar small or very small molecules can cross the membrane by simple diffusion.</em>
