The correct answer is D.
Cyclical changes involve conditions that oscillate.
Stressed, i think it is because it the cuse to people problems in sugar level<span />
The mandible of a crayfish is used to grind food. The maxillae holds,tears, and passes the solid food to the mouth. What structures are used for capturing prey or securing and. eating food. The mandible of a crayfish is used to grind food
Crossing over increases genetic variation because due to this, each of the homologous chromosomes get a new combination of traits/ genes and since a each cell has different homologous chromosomes, genetic variotion will occur
Answer:
D
Explanation:
Clams naturally filter out contaminants in water
Without the clams, the water quality will drop dramatically, as the local ecosystem will lose its natural filtration system
