The trinomial x2 – 3x – 4 is represented by the model. An algebra tile configuration. 0 tiles are in the Factor 1 spot and 0 tiles are in the Factor 2 spot. 10 tiles are in the Product spot in 2 columns with 5 rows: 1 is labeled + x squared, 1 is labeled + x, the 4 tiles below + x squared are labeled negative x, and the 4 tiles below the + x tile are labeled negative. What are the factors of the trinomial?

black

lasagna

lunch

math

b. to discover aspects of the natural world.

hopefully i .

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.