C. Changes to biodiversity can positively and negatively affect an ecosystem.
Explanation:
Meiosis is beneficial as it produces gametes that are genetically different to the parent cell, and when the gametes combine the offspring produced is made from combination of genes from both mother and father. The offspring is genetically unique, there is no other organism on the Earth with the exact same DNA sequences on their chromosomes.
I think teachers in the master gardener program are pretty helpful for the environment
There is less friction between the ice and hockey puck. Concrete is generally more textured and rough, therefore creating more friction
Answer:
I'm not really sure but I'll guess it's