What distinguishes the photic zone from the aphotic zone in a marine ecosystem

An earlier classification system grouped organisms by whether they inhabited the air, land or sea. However, the five-kingdoms-of-life and three-domains system divided into class-order-family-genus-species as described in this chapter is superior

A father decoded his daughter's DNA at home to find a rare medical condition. Would he have been able to perform this experiment at home 20 years ago? Explain.

How might similarities and differences in genetic codes, or the proteins built as a result of these codes, be used to determine how closely related different species are?

How far away is venus from earth

The best definition of the term prognosis is the: a. number of remissions to be expected during the course of a chronic illness. b. precipitating factors causing an acute episode c.

Why are rapidly occurring environmental changes more likely to cause extinctions than slowly occurring changes? Slow changes allow time for adaptation. Rapid changes require little adaptation. Slow changes affect only small regions.

The nurse should use the bell of the stethoscope during auscultation of:

Which measurement unit represents volume? square centimeter cer Igra liter kilometer

Gametes from two plant species combine and produce a haploid zygote, and that zygote develops into a haploid, hybrid plant. why is the hybrid plant sterile

About 500,000 tons of sediment are eroded from the Grand Canyon every day. Wind, water, and gravity are constantly widening the canyon. What is making the canyon deeper? A. Mass movements B. Coastal erosion C. Wind erosion D. River action