What was the most important scientific advance gained from gregor mendel's experiments with pea plants? a. we learned that chromosomes are composed of dna. b. we learned that recessive alleles occur more frequently in the f2 generation than do dominant ones. c. we learned that many traits are inherited in discrete units, and are not the result of blending. d. we learned that there is considerable genetic variation in garden peas. e. darwin's theory of evolution by natural selection was confirmed?

Some plants have reproductive structures that them reproduce using natural forces or animals. how does the reproductive structure shown here ensure the reproductive success of plants?

Atree root breaking a rock into smaller fragments is an example of both and mechanical weathering. when rocks are exposed to heat, they which can contribute to thermal stress. when harmful gases, such as sulfur dioxide and nitrogen oxide, react with water in the atmosphere, they can produce the agent of erosion involved in stream erosion is when the ground is so saturated that it can't absorb rainfall or when rain falls so quickly that the ground can't absorb the water, forms. a/an is a huge, heavy, moving body of ice that picks up rocks and sand and erodes the ground beneath it as these materials scrape across it. hot arid climates are prone to erosion by rows of trees and shrubs planted to protect fields from wind erosion are known as

Photosynthesis converts solar energy into what type of energy? o a. chemical energy o b. electron energy o c. water energy o d. photon energy