Which is produced when an egg and a sperm unite during a plant’s life cycle? spore
meiosis
zygote
gametophyte

Need an answer asap 45 points and brainlest to the first person to answer why do scientific theories, such as biological and chemical evolution, represent the strongest explanation of the changes observed in the fossil record. must be in sentence form how can scientific theories on evolution and the fossil record change over time? must be in sentence form

Two critical interventions to turn around the opioid crises are:

Isolated volcanic peaks on the ocean floor are