Living organisms share certain characteristics of life. Two living organisms, a pine tree and a sea urchin, are pictured below. A large pine tree. A sea urchin. Photo by David Which statement describes a difference in one of the characteristics of life shared by these organisms? One of the organisms produces asexually, the other does not. One of the organisms uses plants for energy, the other uses animals for energy. One of the organisms gets energy from the sun, the other does not. One of the organisms grows and changes, but the other does not.

What molecule does hemoglobin decay into over time

What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna

Astudy by solloch and et. al., in 2017, gives the map above which shows the frequency of alleles with a ccr5-delta32 mutations over 87 different countries. this mutation deletes the presence of a co-receptor (ccr5) on the outside of human t-cells (lymphocytes). some viruses, such as the one responsible for the black death and human immunodeficiency virus (hiv), require this receptor for attachment to host cells during the infection process. the black death was an epidemic that passed over northern europe during the 14th century killing nearly 60% of europeans. according to this information, which explanation best explains why northern europeans show a greater immunity for hiv than some other parts of the world?