When the male sex cell which is the unites with the female sex cell, takes place. a) sperm b) egg c) fertilization d) ovulation e) endometriosis

Legumes, a type of plant, require rhizobia, a type of soil bacteria, to survive since these organisms fix nitrogen during photosynthesis. rhizobia use the legumes for food. what would most likely happen to the legume population if rhizobia suddenly became extinct?

Which of these is an example of land degradation? a. containers designed to store pollutants leak. b. fertilizers provide too many nutrients to crops. c. garbage is buried so the land can be reclaimed later. d. a drought kills all the plants in an area, leaving bare land

During dna replication, each strand of dna is used as a template to produce a complementary strand of dna. this process is shown below. which base will attach to location