In order for natural selection to occur which conditions are necessary?

A. No mutations

B. each organism born must survive

C. no variation

D. more born than can survive

What enables plant or animal to live in it's surrounding

How does the Sun's energy power the water cycle? Question 1 options: 1) Solar flares melt glaciers. 2) Solar energy reflects off the Moon at night, causing evaporation. 3) Solar winds move clouds.

Reynaldo is reviewing a study on the effectiveness of a new drug-free remedy for depression. In the study, a group of participants was given a natural supplement for a period of six weeks. They rated their mood both before and after treatment.

Which statement best describes a human influence on the biogechemical cycles

Name two types of energy transformtions

Question 18 Which term best describes the diagram below? Eye color Blood type . Hair color Growth

Why did mendels use characteristics that only had 2 options? how did this aid in the development of his theories?

8. Modern fishing practices threaten biodiversity mainly through the

What is transpiration, and how does it occur within a plant

Describe each of the four mechanisms that cause air to rise.