Select your answer:
Topics:
Health Care Entomology Cell Cycle; Cancer Diseases Circulatory & Respiratory System Fluid Therapy Pulse Patho_Genetics Human Digestive System Genes and DNA Blood/Lymphatic/Immune History of Immunology The Ankle and Lower Leg SCI CH2-1 Macronutrients & MicronutrientsOther quiz:
Tissues › Viewmuscle contain special protein called
A. contractile protein
B. collagen
C. keratin
D. pectin
Ecology & Organisms › View
Cowbirds are known to lay their eggs in the nests of other birds. Mother birds will feed the new chicks and their own, which sometimes means not every chick gets enough food. This is an example of ____________.
A. mutualism
B. commensalism
C. amensalism
D. parasitism