Biology 1421 Exam 1

Decomposition by bacteria, a protist ingesting bacteria, and a fungus consuming strawberries are all examples of the activity of _____organisms. A.) Heterotrophic B.) Unicellular C.) Pathogenic D.) Autotrophic E.) Multicellular

A. Heterotrophic

The earliest group of land plants whose reproduction did not require water for swimming sperm were the A.) Conifers B.) Ferns C.) Mosses D.) Algae E.) Flowering Plants

A.) Conifers

The fossil evidence indicates that amphibians evolved from _______ A.) Fish B.) Frogs C.) Reptiles D.) Dinosaurs E.) Mammals

A.) Fish

_____eliminated the need for water for plan reproduction. A.) Pollen B.) Vascular Tissues C.)Flowers D.) Sperm E.)Cones

A.) Pollen

Living things must do all of the following EXCEPT: A.)Reproduce Sexually B.) be complex and organized C.) respond to stimuli D.) acquire and use energy E.)grow and reproduce

A.) Reproduce Sexually

The most accurate meaning of the term evolution is A.) Adaption B.) Improvement C.) Change D.) Mutation E.) Natural Selection

C.) Change

Descent with modification from pre-existing forms is the definition of A.) Speciation B.) Reproduction C.) Evolution D.) Mutation E.) Natural Selection

C.) Evolution

An organism's ability to maintain internal stability when the external environment changes is defined as A.) Natural Selection B.) Responsiveness C.) Homeostasis D.)Metabolism E.) Mutation

C.) Homeostasis

Who disproved the "broth-to- microorganisms" hypothesis? A.) Stanley Miller B.) Francisco Redi C.) Louis Pasteur D.) Alexander Oparin E.) Sidney Altman

C.) Louis Pasteur

____ may have evolved from aerobic bacteria and ____ may have evolved from photosynthetic cyanobacteria that were engulfed by predatory prey prokaryotic cells. A.)Chloroplasts; mitochondria B.) Mitochondria; nuclei C.) Mitochondria; chloroplasts D.) Cell membranes; chloroplasts E.) Cel membranes; chloroplast

C.) Mitochondria; chloroplasts

The first land plants were restricted to moist, marshy environments because of A.) the need for stem support B.) the lack if a cuticle C.) reproductive cell requirements D.)the need for nutrients E.) Sensitivity to light

C.) reproductive cell requirements

Who first disproved the "maggots-from-meat" hypothesis? A.) Harold Urey B.)Francisco Redi C.)Louis Pasteur D.) Alexander Oparin E.) Sidney Altman

B.) Francisco Redi

The sum of chemical processes that enable an organism to obtain and store energy from sunlight is called A.) Responsiveness B.) Photosynthesis C.) Growth D.) Respiration E.) Reactivity

B.) Photosynthesis

Where did the most of the O2 in our modern atmosphere come from? A.) the oxidation of metals B.) Photosynthesis C.) Respiration D.) the breakdown of carbon dioxide E.) Cell membranes; chloroplasts

B.) Photosynthesis

The first self-replicating molecules were probably A.) DNA B.) RNA C.) Louis Pasteur D.) Alexander Oparin E.) Sidney Altman

B.) RNA

"All the populations of organisms that can potentially interbreed with one another under natural circumstances and are reproductively isolated from other populations" is the current definition of a A.) Genus B.) Species C.) Genotype D.) Mutation E.) Natural Selection

B.) Species

Primitive fish called ____ were probably the ancestors of both modern bony fish and ____ A.) lobefins; reptiles B.) lobefins;amphibians C.) sharks;amphibians D.) Arthropods;amphibians E.) Arthropods; Reptiles

B.) lobefins;amphibians

The basic difference between prokaryotic cell and a eukaryotic cell is that he eukaryotic cell A.) lacks DNA B.) possesses membrane-bound organelles C.) is usually considerably smaller D.) lacks a nucleus E.) is not as complex structurally

B.) possesses membrane-bound organelles

The first terrestrial animals probably were A.) Amphibians B.) Reptiles C.) Arthropods D.) Dinosaurs E.) Mammals

C.) Arthropods

About 530 million years ago, fish became the dominant predators of the sea because of the evolution of A.) External skeleton B.) Scales C.) Fins D.) Internal Skeleton E.) Eyes

D.) Internal Skeleton

The earliest fossils resemble modern A.) Protists B.) Green Algae C.) Eukaryotes D.) Prokaryotes E.) Protocells

D.) Prokaryotes

Which correctly indicates the sequence of increasing organization in living things? A.)organ system, tissues, community,population,species B.)tissues, organs, multi-celled organisms,population, community C.) population,community,species,tissues,organs D.) organ,organ system, multi-celled organisms, population, community

D.) organ,organ system, multi-celled organisms, population, community

Single-celled organisms that la k a nucleus are ____, and belong to the two domains ____ and ____ A.) Eukaryotic,Archaea, Protist B.) Prokaryotic, Archaea, Protist C.)Eukaryotic, Bacteria, Archaea D.)Prokaryotic, Bacteria, Archaea E.) Prokaryotic, Bacteria, Protist

D.)Prokaryotic, Bacteria, Archaea

A photosynthetic protist will move toward a light source, demonstrating A.) Growth B.)Reproduction C.)Homeostasis D.)Evolution E.)REsponse to Stimuli

E.) Response to Stimuli

Which of the following might occur and cause species to become extinct? A.) Movement of continental plates B.) Meteor impact C.) climate change D.) Global Warning E.) All of these

E.) All of these

The studies of which geologist indicated a much greater age of the Earth than had been proposed before? A.) Lamarck B.) Comte de Buffon C.) Mendel D.) Wallace E.) Lyell

E.) Lyell

Which group of vertebrates was the first to evolve a waterproof egg, allowing the group to move away from water, deeper onto dry land? A.) Lobefins B.) Mammals C.) Birds D.) Primates E.) Reptiles

E.) Reptiles