Answer:
They remain in an environment,even as more competitive species arrive
Explanation:
Pioneer species, in ecological succession, are the first set of organisms to colonize a bare area of land or a disturbed area of land. Pioneer species include lichens, grasses, fungi etc.
Pioneer species have unique characteristics that distinguishes them from every other species of organism. These include:
- They facilitate environmental change, making an environment more habitable for other species.
- They tolerate a wide range of environmental conditions.
- They are capable of colonizing a barren environment, as in primary succession.
However, pioneer species do not remain in an environment, even as more competitive species arrive. They rather give way for new species to emerge and dominate.
The cells in the pancrease that produce these secretions are the acinar cells. These cells of the pancrease secretes three major types of enzymes; that is the alpha amylase, lipase and proteases that are responsible for the hydrolysis of carbohydrates, fats and proteins respectively. These cells belong to the exocrine pancrease since they secrete enzymes into the gut via a system of ducts.
Answer:
Pythons and boa constrictors have tiny hind leg bones buried in muscles toward their tail ends. Such features, either useless or poorly suited to performing specific tasks, are described as vestigial. ... Vestigial legs are a clue that snakes descended from lizards.
Explanation:
Hope it helps!
If not, I'm sorry I couldn't help :(
Answer:
Because it can cause overcrowding, increase in crime, political turmoil, and destitution (meaning extreme poverty like we still have today). But this situation is cause of other problems. (your answer is in bold print.)
Explanation:
I have heard many times about rapid growth and it is a concern, but even though it doesn't seem like a problem till today, it still is. Hopefully this helps!
The only infectious diseases that have been completely eradicated so far are smallpox and rinderpest. Public education about any disease is an important step. You also need to develop a vaccine. A worldwide vaccination program was created in the case of smallpox. Anyone who showed symptoms was quickly quarantined and given a vaccination.