Question

check all statements below that are true. all organisms must compete for survival. when organisms struggle to survive, they usually mutate to increase chances of reproduction. some organisms have phenotypes that make them better competitors than others in their environment. animals undergo natural selection, but plants and other organisms generally do not. natural selection continues to occur even today. phenotypes found in the most successful members of a species become the most prevalent after several generations. a decrease in food availability will increase the variation in a population. done

Explanation:

• All organisms must compete for resources like food, space etc. for survival, so the first statement is true.
• Mutations are random and not a direct response to struggle for survival to increase reproduction chances, so the second statement is false.
• Some organisms have traits (phenotypes) that give them an edge in their environment, making them better competitors, so the third statement is true.
• All organisms including plants undergo natural - selection, so the fourth statement is false.
• Natural selection is an ongoing process, so the fifth statement is true.
• Successful phenotypes in a species become more common over generations due to natural selection, so the sixth statement is true.
• A decrease in food availability usually leads to selection pressure and may reduce variation in a population rather than increase it, so the seventh statement is false.

Answer:

• All organisms must compete for survival.
• Some organisms have phenotypes that make them better competitors than others in their environment.
• Natural selection continues to occur even today.
• Phenotypes found in the most successful members of a species become the most prevalent after several generations.