Biology 121 Final Exam Complete Questions with Correct Answers (A+ Graded) Latest 2023

What is the hierarchy of life from largest to smallest? Correct Answer Biosphere-Ecosystem-Community-Population-Organism-Organ system-Organ-Tissue-Cells-Organelle-Molecule-Atom A current example of natural selection is Correct Answer The bacteria that has become drug resistant The usual proces...

Evolution Correct Answer change overtime Biological evolution Correct Answer consists of genetic change in populations of organisms across generations The two naturalists from England who established the idea of natural selection Correct Answer 1. Alfred Russell Wallace 2.Charles Darwin Wh...

A molecule is composed of atoms. True or False? Correct Answer True What is the difference between a theory and a hypothesis? Correct Answer A theory is supported by all existing evidence and have never been shown to be false. A hypothesis is a proposed explanation for a set of observations that ...

A mutation with a deleterious effect on the function of a protein encoded by a human mitochondrial gene will be: Correct Answer maternally inherited Genes that are close together in the same chromosome: Correct Answer tend to be transmitted together Which of the following BEST describes the de...

Sloths are arboreal (tree-dwelling) creatures so why do they defecate (poop) on the ground? Which of the following is a hypothesis based on this question? A. If sloth defecating behaviors are to facilitate mating, then the removal of sloth feces will not affect mating success. B. Sloths defecate i...

______ are substances that cannot be broken down to other substances by chemical means Correct Answer elements ______ energy is the energy that matter possesses because of its location or structure Correct Answer potential Nitrogen has an atomic number of 7 and an atomic mass of 14 daltons. Th...

Prokaryotes are classified as belonging to two different domains. What are the domains? Correct Answer Bacteria and Archaea Life is organized in a hierarchical fashion. Which of the following sequences correctly lists that hieracrchy from least inclusive to most inclusive? Correct Answer molecule...

In a water molecule, the hydrogen atom and _____________ atom are held together by a ______ bond. Correct Answer oxygen, covalent This organelle contains two membrane and derives from a nonphotosynthetic ancestral prokaryotic cell. Correct Answer mitochondria If the ion Cl- enters a cell by mo...

Basic steps of the hypothesis-testing method of scientific inquiry Correct Answer 1. Observation 2. Hypothesis 3. Predictions 4. Test data 5. Conclusion How is the hypothesis-testing method used to study ecological phenomena? Correct Answer Global warming, for example, is an ecological proble...

Ameoba Correct Answer Use pseudopodia to move around and engulf food particles. Down Syndrome Correct Answer Resulted from an aneuploidy condition by which the affected individual has three copies of chromosome 21 in each somatic cell. Unikonta group Correct Answer First group of eukaryotes to...

What is the most inclusive category of classification? Correct Answer Domain What cells are smaller than the cells of your body and lack nuclei? Correct Answer Prokaryotic cells What results when there is differential success in survival and reproduction? Correct Answer Evolution What are s...