Answer
Just think critically about why (if you were an egg laying species), having a fetus/baby develop inside of you would be advantageous.
For one, eggs are much less protected from outside factors such as predators, temperature, etc than live birthed creatures. Live birth provides protection inside the mothers body from things such as heat, cold, moisture, predatory animals, etc. An egg laying animal must keep its eggs at a perfect temperature and check to make sure no other animal has eaten them.
Answer:
They absorb the food molecules that result from the external digestion.
Explanation:
A type of commensalism is the sea anemone and the clown fish. The definition of commensalism is where another species lives within another. (Usually this relationship is with animals, fungi, and plants.) No harm comes to either species.
A clown fish lives in a sea anemone, and this doesn't hurt the anemone nor is the clownfish affected by its sting because of their oils that protect them.
If you didn't know, Nemo and his father, Marlin, lives in a sea anemone. A natural habitat of a clown fish.
Reflection seismology is a method of exploration geophysics that uses the principles of seismology to estimate the properties of the Earth's subsurface from reflected seismic waves
Answer:These contractile elements are virtually identical to skeletal muscle. ... (a) Cardiac muscle cells have myofibrils composed of myofilaments arranged in sarcomeres, ... The refractory period is very long to prevent the possibility of tetany, a ... At this point, the calcium ion channels close and K+ channels open, allowing outflux ..
Explanation:
