Answer:
An invasive species enters the environment.
Explanation:
All other answers already naturally happen in an environment so they are stable. But if an invasive species enters, the ecosystem will be less stable because invasive species dominate ecosystems which isn't natural to the animals that live there. So for example, if someone introduced an invasive species to the ecosystem, it can cause many changes like if it was a predator, there'll be less primary consumers (the animals that eat plants) because the invasive species isn't natural to them.
They left so it would be emigration. Hope that helps!
Answer:
The cell organization hierarchy consists of (in order): cells ⇒ tissues ⇒ organs ⇒ organ systems ⇒ organisms.
Explanation:
Answer:
The correct answer will be option-Parallel processing
Explanation:
Parallel processing is the ability of the brain in which the brain processes the incoming stimuli of the different quality at the same time or simultaneously.
During the vision, the brain processes different stimuli at the same time like the shape, intensity, color and their spatial arrangement by different parts of the brain individually and then analyzing and comparing the stimuli to the stored memories. This parallel processing helps the brain to identify the vision.
Thus, parallel processing is the correct answer.
The correct answer is: transcription factors.
Gene expression is controlled (regulated) on different levels (DNA structure, transcription, RNA processing, post-translational modification. Gene expression is regulated in order to increase or decrease the production of specific gene products.
Transcription factors can enhance the interaction between RNA polymerase and a DNA sequence- promoter, encouraging the expression of the gene. Such transcription factors are called activators. Otherwise, when the gene expression is inhibited, factors are called repressors and they bind to sequence –operator.