Homologous structures Study guides, Revision notes & Summaries

BIO 117 Exam 1 Questions and Answers Already Passed What is an adaptation? a trait that improves the fitness of its bearer, compared with individuals without the trait How can biological fitness be estimated? Count the number of healthy, fertile offspring produced by different individuals in a population. All of the following are true for natural selection EXCEPT: - Variation exists in populations (all individuals are NOT the same). -Characteristics acquired by individuals over the cours...

What are the properties of life? Order-Reproduction-Regulation(Homeostasis)-Energy Processing(Cell Respiration)-Growth & Development-Response to Environment-Evolutionary Adaptation Ostrich Eggs Run Home Rapidly At Dawn What are the levels of biological organization? Biosphere-Ecosystem-Community-Population-Organism-Organ System-Organ-Tissue-Cell-Organelles-Molecule-Atom What is systems biology? is an approach that attempts to model the dynamic behavior of whole biological systems based o...

Iteroparous Species that reproduce multiple times during their lives (ex: humans, dogs, Semelparous Species that reproduce only once in their life, but may produce MANY offspring during that one, Iteroparity A survivorship pattern related to reproductive patterns; often typical of organisms whose survival chances increase once they reach maturity, Semelparity A survivorship pattern related to reproductive patterns; often typical of organisms with type 3 survivorship, Phylogeny a synonym for ...

Kinetochores - protein structures located on the centromeres that serve as attachment points for specific fibers of the spindle apparatus (kinetochore fibers) metastasis - distant spread of cancerous cells through the bloodstream or lymphatic systems Mitosis - 2 identical cells created from a single cell Cytokinesis - splitting of cytoplasm and organelles into 2 daughter cells Haploid (n) - cells that contain only 1 copy of each chromosome example-germ cells Diploid (2n) - contai...

Macroevolution, Species, TBD Exam Questions & Answers 2024/2025 What does fossil record tell us? - ANSWERSchange of species overtime, including transitional forms relative age of fossilized life forms possible absolute age of fossil past environments and environmental changes uniformitarianism - ANSWERSthe laws of nature do not change over time if we understand how rocks form today, we assume that rocks have formed this way in the past and will continue to form this way in ...

RNAS C Practice Test Review 437 Questions with Verified Answers A capacitor and resisitor in parallel - CORRECT ANSWER will have same voltage across since in parallel. if in series, voltage drops would occur they can be treated together If the absolute pressure of a gas is increased from 3 atm to 4 atm at constant volume, then the absolute temperature of the gas will increase by: A. 25%. B. 33%. C. 67%. D. 75% - CORRECT ANSWER B. Assuming the validity of the Ideal-Gas law, PV = n...

BIO 101 nvcc final EXAM TEST QUESTIONS ANSWRED CORRECTLY & VERIFIED What is an adaptation? A.a genetic change over time B.an increase in reproductive success by certain individuals C.a trait that is heritable and confers reproductive success D.differential reproductive success of a particular individual E. B & D - ANSWER C.a trait that is heritable and confers reproductive success In a population of dogs, long ears are dominant over short ears. If 50 of 200 dogs in a population...

What does HIV do to the immune system? correct answer: HIV directs formation of new viral parts. Then the viruses leave by budding or bursting through cell membranes. The white blood cells are destroyed Describe the role of the human circulatory system. correct answer: Transports blood/ Oxygen to the rest of the body. What are homologous structures, and how do they provide evidence for evolution? correct answer: Homologous structures point to similar structures from different organisms....

Biology Praxis Questions and Answers with Verified Solutions Which of the following characteristics of a material found on the bark of a tree most likely prove that the material is a living thing? the material appears to reproduce on its own Given the DNA sequence 5' ATGCCCTCA 3', which of the following is the correct complementary sequence of messenger RNA? 3' UACGGGAGU 5' *RNA = uracil replaces thymine in DNA According to evolutionary theory, which of the following individ...

BIO 101 nvcc final EXAM TEST QUESTIONS ANSWRED CORRECTLY & VERIFIED What is an adaptation? A.a genetic change over time B.an increase in reproductive success by certain individuals C.a trait that is heritable and confers reproductive success D.differential reproductive success of a particular individual E. B & D - ANSWER C.a trait that is heritable and confers reproductive success In a population of dogs, long ears are dominant over short ears. If 50 of 200 dogs in a population...