Crossbred non-pure smooth-shelled peas with wrinkled-shelled seeds to produce F1 offspring. Write a hybrid diagram and show the genotype and phenotype in F1. (Know that smooth shell is dominant over wrinkled shell)
Red flowers dominant, white flowers recessive
1. AA x AA
2. AA x Aa
3. AA x aa
4. Aa x Aa
5. Aa x aa
6. aa x aa

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

Which of the following produces carbon dioxide? a. plants b. animals c. decomposers d. all of the above

What kind of bond is created by the attraction between atomic particles of opposite charge? ionic bond hydrogen bond covalent bond nuclear bond