You are attempting to classify an organism into the appropriate kingdom, you notice that it is motile, it is photosynthetic, and unicellular. What kingdom do you think it will belong in?

How do the sperm cells get from the stigma to the ovules?

During crossing-over, a. genetic material is exchanged between nonsister chromatids, resulting in new combinations of alleles. b. nonsister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. c. one homologous chromosome of a tetrad is exchanged with another tetrad, resulting in new combinations of alleles. d. sister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. e. genetic material is exchanged between sister chromatids, resulting in new combinations of alleles.

Achange in which factor will affect the rate of reaction only when gases are involved? temperature pressure surface area concentration