Even in situations where people have done studies prior to releasing non-native species, there have been problems. Why?

In situations where people have done studies prior to releasing non-native species, there have been problems because of the lack of predators in the new environment.

Explanation:

When a non - native species is put in a new environment, the major problem is adaptation, not every species is adaptable, and non - native species lack to survive in new environment.

In situations where people have done studies prior to releasing non-native species, there have been problems because of the lack of predators in the new environment.

These non - native species are known as invasive species, they can cause disruption of trees and the animals with their invasion.

They are capable of destroying the cycle of the environment and also affect the human beings. They can damage the economic cost, however their survival is a big question as it lacks predators and adaptation

chert is a sedimentary rock composed of microcrystalline or cryptocrystalline silica. with this little bit of information, you can come to the conclusion that your answer is c.  

explanation:

interphase

the period of cell growth when the cell synthesizes new molecules and organelles. the cell is not dividing and it constitutes the majority of the time spent in the cell cycle

prophase

changes occur in the nucleus and cytoplasm. the chromatin condenses to form structures (sister chromatids) visible with a light microscope and the mitotic spindle begins to form, but the nucleus is still in tact

prometaphase

the nuclear envelope fragments and the spindle microtubules attach to the kinetochores of the sister chromatids

metaphase

all the cell's duplicated chromosomes are lined up at an imaginary plane equidistant between the poles of the mitotic spindle

anaphase

begins when sister chromatids separate from each other and ending when a complete set of daughter chromosomes arrives at each of the two poles of the cell

telophase

the daughter nuclei form at the two poles of a cell

cytokinesis

the division of a cytoplasm to form two separate daughter cells. usually occurs during telophase during mitosis. this and mitosis make up to mitotic (m) phase of the cell cycle