1. What scientific term is used to describe animals without backbone?
A. Amphibians C. Reptiles
B. Invertebrates D. Vertebrates
3. What do you call to the most biologically diverse ecosystems on earth, and are called the "rainforests of the sea"?
A. Coral reefs. C. Rivers
B. Mangrove swamps. D. Tropical rainforests
4. In which part of the digestive system does digestion start?
A. Esophagus. C. Small intestine
B. Mouth. D. Stomach
5. Which of the following is NOT a function of skeletal system?
A. it gives shapes to the body
B. It serves as framework of the body
C. It protects the internal organs of the body
D. It turns the food you eat into something useful for the body

Pa answer po kaylangan ko na talaga. Please pakisagutan po ng maayos. Pinag hirapan ko po yan i type. Hindi ko na nilagay yung no. 2 kase ang sagot don ay C. Skull