Progressive, irreversible changes to the body that result from the passage of time are called aging. B) chronological C) psychological D) biological

Which of the following anterior teeth have a cingulum that is located off-center toward the distal? a) Maxillary lateral incisorb) Maxillary caninec) Mandibular central incisord) Maxillary central incisor

An unknown microbial specimen measures 18 millimetres under a total magnification of 400 x , when examined under the microscope. What is the actual size of the unknown specimen? \( \begin{array}{ll}\text { (A) } 45 \text { micrometres. Total magnification }=400 x \\ \text { (B) } 4.5 \text { micrometres. } \quad \frac{18}{400 x}=0.045 \mathrm{~mm} \\ \text { (C) } 0.45 \text { micrometres. } \\ \text { (D) } 0.045 \text { micrometres. } & \text { micrometers }=0.045 \times 1000=45 \text { micrometers }\end{array} \)

1.1.6 The main purpose of an engine's air filter is that it ... A controls the engine's air intake volume B reduces the engine's air intake noise. C prevents air from entering combustion chamber D prevents dust and other foreign matter from entering the engine

3. Which of the ff. is a producer? \( \begin{array}{ll}\text { a. fish } \quad \text { b. shrimp } \quad \text { c. algae } \quad \text { d. crab }\end{array} \) \( \begin{array}{l}\text { 4.All the organisms below are decomposers except } \\ \text { a. fungi } \quad \text { c. bacteria } \\ \text { b. sea lion } \quad \text { d. fungi and bacteria } \\ \text { 5. Arrange the feeding relationship of the ff. organisms living in } \\ \text { intertidal zone }\end{array} \) Fish ------seaweeds------shore birds

Can a star-nosed mole be tamed as a house pet?