Which of the following biomes is characterized by little rainfall, permafrost, and an average temperature below 0 degrees Celcius?

Pavlov’s well known experiment of a dog salivating at the sound of a bell ring is an example of

The climate of a particular region is dictated by all of the following factors EXCEPT

A waggle dance is used by bees to indicate

DNA condenses into chromosomes in which phase of mitosis?

A 35 year old patient presents with a skin rash, pain and swelling in the bilateral knees, hips, wrists and ankles.  The rheumatoid factor, uric acid  and ANA labs were normal.  Tests for lyme disease were negative. What subjective and objective data should the nurse practitioner be sure to include in the workup for this patient as they continue to explore a possible less common cause for the patient’s symptoms. 

A 7 year old male presents with symptoms of groin pain, thigh pain, and a limp that began 3 months ago.  You examine the child and note decreased range of motion in the affected lower extremity.  A radiograph shows ossification of the nucleus of the femoral head and a widened articular cartilage space when compared with the opposite head.   These symptoms should most likely lead to a diagnosis of 

Goggle’s digital advertising division is planning to develop a new landing page for its ad products. In order to boost customer engagement and revenue, the company is considering four different design approaches: Design A, Design B, Design C, and Design D. Based on market research, Goggle believes that the response to the new landing page will can be characterized into three categories for the purposes of this decision: High Engagement Moderate Engagement Low Engagement For each design, Goggle has estimated the additional monthly revenue (in thousands of dollars) it could generate under each market response scenario. The estimates are summarized in the table below: Design Option High Engagement Moderate Engagement Low Engagement Design A 350 220 -30 Design B 330 260 40 Design C 300 205 90 Design D 340 230 20 Google’s decision-makers want to choose a design that minimizes the “regret” they might experience if another design would have performed better under the actual market response.   Question: Which design should Google choose according to the minimax regret criterion?

What biological organization level is considered the smallest unit of life?

What would be the total magnification when looking at a slide using the 10x objective lens?