What is the key difference between a community and an ecosystem.

A woman gets a report of abnormal cells from a routine pap test. She anxiously says to her spouse, "I have cancer. It probably has spread all over my body." Which nursing diagnosis and etiology best apply to this situation?

Which of the following statements summarizes the differences between active and passive transport? A. only active transport requires energy (ATP) and moves molecules from low to high concentration B.

One gene has alleles a and a. another has alleles b and b. for each genotype listed, what type (s) of gametes will be produced

The birth canal or opening from the uterus out of the body is called

Cystic fibrosis is a recessive gene disorder. The pedigree chart for a family known to have cystic fibrosis is shown below. A half shaded circle is shown connected by a straight line to an unshaded square.

What is the period during the cardiac cycle when the ventricles are completely closed and blood volume in them remains constant as the ventricles contract?

Forest elephants in Africa have been confirmed as a different species from the larger savanna elephant seen here. Scientists believe the savanna elephant is as different from the forest elephant as Asian elephants are from woolly mammoths.

What competitive processes or forces are ever-present during a star's lifetime?

Which occurs during transcription? A. DNA is copied to create a second DNA strand. B. mRNA codons and tRNA anticodons assemble amino acids. C. DNA is unzipped with the aid of DNA polymerase. D. mRNA is synthesized from a strand of DNA.

In a beach ecosystem, what can limit growth of organisms? A. ocean and rocks B. oxygen C. abundant food source D. moderate temperatures