Bio 112 Study guides, Class notes & Summaries

BIO 112 UBC Exam Study Guide | Actual Exam Questions | 100% Correct Answers | Verified 2024 Version

One definition of evolution is that evolution is "descent with modification". What does "modification" refer to in this definition? (1) Mutation and (2) Sexual Mixing What is the only statement that is NOT true about the genetic relatedness of life on Earth? Gorillas are the closest living relative to humans All but one feature listed below are shared between family trees and phylogenetic trees. Represent populations on each branch Which of the following is the only TRUE statement abou...

mollusca body plan shared features -foot: mass of muscle tissue used for movement and/or manipulation -visceral mass: clump that contains most of the organs -mantle: tissue that drapes over the organ clump and secretes the shell in shelled members 4 characteristics shared by all animals -eukaryotic- membrane bound nucleus and organelles -multicellular -heterotrophic- consumes food to get energy -have tissues that develop from embryonic layers (germ layers) germ layer formation step 1 spe...

Bryophytes Characteristics Vascular: no Seed Bearing: no Dominant Generation: gametophyte Examples/Phyla: liverwort, mosses, hornwort Special features: use spores, no seeds, need water for reproduction Paleozoic or Mesozoic: Paleozoic Ferns Characteristics Vascular: yes Seed Bearing: no Dominant Generation: sporophyte Examples/Phyla: monilophyta Special features: have sporangium Paleozoic or Mesozoic: Paleozoic Gymnosperms Characteristics Vascular: yes Seed Bearing: yes Dominant...

BIO 112 LAB EXAM 1 TAMU LATEST UPDATE GRADED A+ population All organisms of the same group or species that inhabit the same area and can interbreed genetics The study of how the characteristics of one generation are passed on to the next genetic structure Distribution of genotype frequencies within a population evolution The change in heritable characteristics of a population over generations selection The process whereby a genotype increases or decreases in frequency bec...

The study of how organisms interact with one another and with their nonliving environment is - ecology In a deciduous oak forest in the northeastern United States, one example of a nonliving component of the ecosystem is - sunlight that filters through the canopy A population grows exponentially when - the birth rate exceeds the death rate and immigration exceeds emigration. The different species within an ecosystem that interact in various ways make up a(n) - community All members o...

Which of the following is an incorrect match of structure and function? Cnidocyte - capturing prey Parapodia - defense from enemies Radula - obtaining food Mantle - secretes the shell Chelicerae - consuming food - Parapodia - defense from enemies (gas exchange, locomotion, protection) In a cnidarian life cycle, -Medusae have gonads and produce gametes -Polyps bud off from other polyps -Medusae bud off from polyps -Polyps grow from ciliated larvae - All of the above ...

population All organisms of the same group or species that inhabit the same area and can interbreed genetics The study of how the characteristics of one generation are passed on to the next genetic structure Distribution of genotype frequencies within a population evolution The change in heritable characteristics of a population over generations selection The process whereby a genotype increases or decreases in frequency because it confers a benefit or a detriment to the organism, whi...

Osmosis is the movement of - Answer-water through a selectively permeable membrane down its concentration gradient The ability of an organism to sense and react to changes in its body illustrates - Answer-responsiveness In negative feedback mechanisms, changes away from the normal state - Answer-stimulate changes in the opposite direction to restore normal levels Which of the following are living organisms simplest unit? - Answer-cells An organic compound always contains - Answer-carbon an...