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Which cells have memory, and launch adaptive responses specific to pathogens?

These organisms have actin microfilaments that allow them to produce a pseudopod for movement. 

Match the numbered structures in the image below with their functions.   

Mr. John Smith is a 68-year-old male who presents with progressively worsening lower urinary tract symptoms over the past 8 months. He reports increased urinary frequency, particularly nocturia, waking up 3–4 times per night to urinate. He also notes a weak urinary stream, hesitancy, straining to void, and a sensation of incomplete bladder emptying. Over the last month, he has experienced a few episodes of urgency with occasional urge incontinence. These symptoms have been interfering with his sleep and daily activities. He has not tried any medications for these symptoms but is now seeking treatment due to their increasing severity. He has no prior history of urologic surgery. Medications: None Vital signs: BP=124/78; P=88 Physical exam: Digital rectal exam reported a prostate size of 25g Labs: Na=144; K=4; CO2=26; Scr=1.1; BUN=19; glucose=100 PSA= 6.3 ng/mL  This patient was started on Tamsulosin 0.4 mg daily. Which of the following is/ are true about Tamsulosin?

Which of the following is not an important feature of science?

Development of an ecological community on a site previously devoid of life is called secondary succession.

Rainforests

DNA sequencing technology has improved biologists ability to understand ancestral relationships among different kinds of life.

Persistent inflammation of bronchi in the lungs is known as

Fire prevention efforts have actually increased the chances of very big fires by allowing fuel to accumulate.