I NEED HELP QUICK! I will give brainliest

Modern whales developed their traits through natural selection what occurs during the process of natural selection

Asap i will reward you brainliest for best which sentence about protists is accurate? all protists are unicellular and microscopic in nature. they have organelles, so protists are eukaryotic in nature. all protists make their own energy through photosynthesis.

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?