Straighterline

Organisms called parasites are ______. Select one: a. always harmful to their host b. the decomposers in ecosystems c. always viruses d. free-living : always harmful to their host Trees of life that illustrate the phylogenetic relationships of all organisms were traditionally based on ______; newer methods for determining phylogeny rely on ______. Select one: a. morphology; nucleic acid sequences b. nucleic acid sequences; morphology c. morphology; virology d. morphology; nutr...

Studies by Emil von Behring and Shibasaburo Kitasato demonstrated that inactivated toxins can induce the synthesis of antitoxins in the blood of rabbits. These antitoxins (antibodies) are the basis of... a. humoral immunity b. cell-mediated immunity c. antibiotic immunity d. phagocyte-mediated immunity : a. humoral immunity Who of the following first discovered that some blood leukocytes could engulf diseasecausing bacteria? a. von Behring b. Meister c. Metchnikoff d. Ivanowski ...

The study of evolutionary relationships among organisms is called ______. : phylogeny The three cell types discussed, eukaryotes, archaea, and bacteria, all derived from ______. : Last Universal Common Ancestor Organisms called parasites are ______. : always harmful to their host Which of the following does not indicate microbe involvement in energy and nutrient flow? : Thermal hot springs warmed by heat from earth's interior The subatomic particles that surround the nucleus are the...

In the nitrogen cycle, which of the following steps involves removal of nitrogen from the atmosphere by bacteria? : Nitrogen Fixation If enough H+ ions are added to pure water to raise the H+ concentration of the solution to ten times higher than the original concentration, what is the resulting OHconcentration of the solution? : 10-8 M Fungi are able to reproduce asexually by creating conidiospores and sporangiospores. Which of the following is an accurate explanation for why it is a...

Microorganism : Organisms too small to be seen by the naked eye Less than 1mm Unicellular If multicellular thay lack different tissues acellular microorganisms : viruses -protein and nucleic acid, viroids - RNA satellites -nucleic acid with a protein shell prions- protein Cellular microorganisms : fungi - yeast molds protists - algae, Protozoa, slime molds bacteria -E Coli archaea - methanogens (natural gas)extreme environments prokaryotic cell 2 : cell that does not have a nuc...

STRAIGHTERLINE CHEMISTRY FINAL- DECK 4 EXAM 2024

STRAIGHTERLINE EXAM 1 (CHPT. 1-3) 2024 WITH 100% CORRECT ANSWERS Which of the following is a tentative explanation for a set of observations? a. Law b. Hypothesis c. Theory d. Phenomena e. Prediction - correct answer b. Hypothesis Which of the following cannot be separated into simpler substances by chemical means? a. Element b. Emulsion c. Compound d. Homogeneous mixture e. Heterogeneous mixture - correct answer a. Element Which of the following is an extensive property? a...

A& P 1 Final Exam, Straighterline Anatomy and Physiology 1 Straighterline A &P 1 Cumulative Exam

A& P 2 Straighterline Final Exam

A& P1 Ch1- Straighterline Exam