Complete BIO 121 Q&A Bundle

What does Descent with Modification mean? Passing of traits from parents to offspring What is evolution? Change over time How are genes involved in natural selection? genetic mutations that are beneficial to an individual's survival are passed on through reproduction Who contributed to the main ...

Lamarck's hypothesis of "inheritance of acquired characteristics". an individual adapts in its lifetime, and that this adaptation is passed on to the next generation. the various example of inspiration that led Darwin to develop his idea Extinct glyptodons (giant armadillo) and modern-day armadi...

Actin A globular protein that links into chains, two of which twist helically about each other, forming microfilaments (actin filaments) in muscle and other kinds of cells. Active transport The movement of a substance across a cell membrane, with an expenditure of energy, against its concentration ...

Gene pool all of the alleles of all the genes in a certain population Hardy-weinberg principle genotype frequencies in a large population do not change from generation to generation in the absence of evolutionary processes Claims of hardy-weinberg principle (1) if the frequencies of alleles a1 and...

Prokaryotes are classified as belonging to two different domains. What are the domains? 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? molecule, organelle, cell, tissue, organ...

What process is most directly driven by light energy? Removal of electrons from chlorophyll molecules True or False: plants require no more than energy and a carbon source to make their food False Which color has the greatest energy? Blue A pigment absorbs a photon only if the energy of the photo...

Metabolism the entirety of an organism's chemical reactions Metabolic pathway starts with starting molecule, reaction occurs with catalyst to create new molecule, happens more until end product is made Catabolic pathway releases energy by breaking down complex molecules into simpler compounds An...

Which is the correct sequence of increasing organization? "Molecule, cell, organelle, organ" "Organelle, tissue, cell, organ" "Atom, molecule, tissue, cell" "Organ, tissue, cell, molecule" "Cell, tissue, organ, organ system" Cell, tissue, organ, organ system Choose the correct pathwa...

One of the major functions of the plasma membrane is to control what enters and leaves a cell. Which of the following would directly supply energy to an active carrier protein? ATP Hikers can detect a dead skunk along a trail long before they actually see it. What process allows the scent of the s...

The cardiovascular reflexes are based in the medulla oblongata. The narrow passageways that contain cytoplasmic extensions of osteocytes are called canaliculi. The molecule H2 is known as hydrogen. The triplet codes needed to specify a specific protein are found in the gene. A cell with many mit...

Binary fission a method of asexual reproduction; "division in half"; involves mitosis in eukaryotes Mitosis a process of nuclear division in eukaryotes What are the 5 stages of Mitosis? 1. Prophase 2. Prometaphase 3. metaphase 4. anaphase 5. telophase Meiosis A modified type of cell division in...

Which of the following are true concerning the Healthy People program? Select all that apply. A. Government sponsored program to improve the nation's health B. Reviews and updates the Nutrition Facts labels C. The program is updated every 10 years D. An objective and goal of the program is to encou...

When (roughly) did the first oxygen-producing bacteria evolve on earth? As long as 3.5 billion years ago and certainly by 2.7 billion years ago. How do scientists today measure the CO2 in the earth's atmosphere over the most recent million years or so? Ice-core data before 1958. Mauna Loa data aft...

Bacteria prokaryotes that are members of the domain Bacteria, one of the three domains of living organisms; only distantly related to members of the domain Archaea. Basal body a structure derived from a centriole that produces a cilium or flagellum and anchors this structure within the plasma membr...