What are key symptoms of attention deficit/hyperactivity disorder (ADHD)? Persistent patterns of inattention, hyperactivity, and impulsivity that interfere with functioning or development. Consistent feelings of sadness and withdrawal from social interaction. Gradual development of repetitive patterns of behavior and interests. Intense episodes of euphoria followed by periods of deep depression.

Suppose there are 30 bacteria in a Petri dish at start time. Seven hours later, there are 360 bacteria in the dish. 1.) Express the number of bacteria, P, as a function of \( t \) hours passed. Note: Round the growth rate to 4 dec. places. \( P(t)= \) 2.) Use the model from part a to determine the number of bacteria, rounded to a whole number, in the dish after 20 hours:

Choose the most suitable answer. IMark Which of the following statements about bacteria are true? W Bacteria is an example of a microorganism. X Bacteria may be useful or harmful to man. Y Bacteria can be found everywhere around us. Z Bacteria can be seen with the microscope.

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

22 Which of the following statements about Staphylococcus aureus is correct? \( \begin{array}{ll}\text { (A) } & \text { It is a mesophilic microorganism. } \\ \text { (B) } \quad \text { Cells will appear pink after Gram staining. } \\ \text { (C) } \quad \text { Enterotoxins produced are easily destroyed by heat. } \\ \text { (D) } \quad \text { It does not thrive well in an oxygen-rich environment. }\end{array} \)

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