Which of these is required organic agriculture but not by sustainable agriculture? A. USDA certification

B. Artificial hormones

C. Antibiotics

D. Enough space for animals to behave naturally

Explain the significance of the increased cell specialization of the volvocine line

Zoo geographic regions are characterized by the presence of specific groups of animals these regions are determined by the taxonomic or phylogenetic relationships of animals. the map shows the zoogeographic regions proposed by the naturalist alfred russel wallace in 1876. the similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between the organisms in both locations ?

Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.