What is the correct ordering in the hierarchal levels of the organization of life, from the least inclusive to the most
inclusive?
a. tissues, cells, population, organisms, and organs
b. molecules, cells, organs, tissues, and organisms
c. ecosystems, populations, tissues, cells, and organs
d. cells, tissues, organs, communities, and populations
e. cells, tissues, organs, organisms, and ecosystems
ANSWER: e
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Basic dyes
A. have negative charges. B. have positive charges. C. are electrically neutral. D. contain both positively and negatively charged particles.
Which situation describes potential observer bias in an experimental process?
A) Dr. Jones is evaluating cancer patients for their responses to a new therapeutic drug. She knows which patients are receiving the placebo and which are receiving the drug. B) Mr. Bromley is conducting a survey of weight loss for his professor. He asks each student in the study the same questions. C) Ms. Bradley is an outside consultant who is conducting a health and wellness survey for a pharmaceutical company. She does not know the name of the company nor does she know the name of the drug being tested during the survey. D) Dr. Postgate is analyzing biopsy samples from rats that have been given either a placebo or an experimental drug believed to reduce inflammation. Each sample is identified by a code number so that Dr. Postgate cannot tell which treatment the rats received.
Enzymes are specialized proteins. Where in the cell would enzymes be produced?
A) chloroplasts B) lysosomes C) mitochondria D) ribosomes
The ____________ of the cell contains RNA.
A) nucleus B) cytoplasm C) Golgi complex D) mitochondria