Answer:
Early land animals had both lungs AND gills, and their bodies consisted of few hard parts. Meaning they lacked things like an exoskeleton for instance. Animals today have either lungs OR gills and many have protecting hard parts of their bodies.
Explanation:
Answer:
Individual-level protective factors
Explanation:
Psychological resilience is the ability of the humans to recover very quickly from the difficult situation mentally and socially.
The traits shown by the resilient person are due to self-esteem, problem-solving skills, good health, self concept and many others which are considered individual-level protective factors as these factor help increase the well being of the individual.
Thus, individual-level protective factors are the correct answer.
Fish, reptiles, amphibians, reptiles and mammals
Answer:
go help me on my 3 question please
Wave velocity in common usage refers to speed, although, properly, velocity implies both speed and direction. The velocity of a wave is equal to the product of its wavelength and frequency (number of vibrations per second) and is independent of its intensity.
Explanation:
