Which activity could trigger primary succession?

In humans, Kinky hair (H++), curly hair (H+), wavy hair H) and straight hair (h) are dominant in that order. Dark hair dominates red hair.

Which of the following levels is the least inclusive, smallest, and most specific of the choices? A. Kingdom B. Order C. Family D. Phylum

The DNA content of a diploid cell in the G1 phase of the cell cycle is measured. If the DNA content is x, then the DNA content at metaphase of meiosis II would be:

Down's syndrome is an example of a. Polygenic inheritance b. Incomplete dominance c. Sex-linked disorder d. Chromosome disorder

What is the general structure of the universe?

Isn't this correct?! (I chose A). My teacher marked it incorrect. What is a phenotype? A. the physical or detectable traits of an organism B. a type of biological diversity caused by environmental factor that affects the organism C.

Which of the following is a reason why geographic range can decrease? A. environmental change B. reaction to another species C. human interaction D. all of the above

What effect does sympathetic nervous stimulation have on digestion? A. Diarrhea B. Inhibits digestion C. Enhances digestion D. Vomiting

What was a primary reason for the revived popularity of the Ku Klux Klan?

A behavioral adaptation is ... Give at least 2 examples