| Question |
Answer |
| What are the rungs of a DNA ladder made of? |
Nitrogen bases |
| The nucleotide chains of the DNA molecule are held together by what type of bonds? |
Hydrogen bonds |
| What are nucleotides? |
Repeating subunits of DNA & RNA |
| What are peptide bonds? |
Bonds that link together amino acids in a protein |
| What are codon? |
Group of three sequential bases of mRNA |
| What are anticodon? |
They identify the specific amino acid for tRNA |
| What is a ribosome? |
The site of translation |
| The scientists credited for establishing the structure of DNA are...? |
Watson and Crick |
| The primary function of DNA is to |
Store and transmit the genetic information that tells cells which proteins to make and when to make them |
| The process by which DNA copies itself is called...? |
replication |
| A nucleotide consists of... |
a sugar molecule, a phosphate group, and a nitrogen base |
| In eukaryotic cells, transcription takes place in the...? |
nucleus |
| RNA differs from DNA in that RNA |
is single stranded, contains uracil, and contains a different sugar molecule |
| In eukaryotic cells translation takes place in the...? |
cytoplasm(cytosol) |
| In order for protein synthesis to occur, mRNA must migrate to the |
ribosomes |
| What is the Law of Superposition |
successive layers of rock or soil were deposited on top of another by wind or water |
| What is biogenesis? |
all living things come from other living things |
| What is convergent evolution? |
process by which unrelated species become more similiar as the adapt to the same kind environment |
| What is divergent evolution? |
the process of two or more related species becoming more and more dissimiliar |
| The neck of Pasteurs flasks... |
allowed to enter but kept particles out |
| According to Darwin, evolution occurs because of... |
natural selection |
| The wing of a bat and the foreleg of an alligator are |
analagous |
| Regulators are...? |
organisms that use energy to control some of their internal conditions |
| Generalists are...? |
Species with broad niches, that tolerate a range of conditions and use a variety of resources |
| Acclimation is...? |
the process of an organism's adjustment to an abiotic factor |
| Specialists are...? |
Species that have narrow niches |
| Conformers are...? |
Organisms that do not regulate their internal conditions |
| The broadest, most inclusive level of organization is the...? |
Biosphere |
| An includes all of the organisms and the nonliving environment found in a particular place. |
Ecosystem |
| A ______ is all the interacting organisms living in an area |
Community |
| A pond is an example of a...? |
Ecosystem |
| What is a secondary compound? |
A poisonous, irritating, or bad-tasting substance synthesized by plants as a defense mechanism |
| What is competition? |
The use of the same limited resource by two or more species |
| What is commensialism? |
A form of symbiosis in which both organisms benefit from living together |
| What is mutualism? |
An ecological relationship in which one organism benefits and the other neither benefits or is harmed |
| One difference between predators and parasites is...? |
Parasites are smaller and more abundant |
| What is a food web? |
the interconnected food chains of an ecosystem |
| What is a food chain? |
A pathway beginning with producers along which energy is transfered from trophic level to trophic level |
| What is a trophic level? |
a feeding level in an ecosystem |
| What is a fungi? |
organism that absorbs nutrients from the environment (mushrooms, molds) |
| What are Eubacteria? |
Unicellular prokaryotes, that are known as "true" bacteria |
| What are Protista? |
Multicellular organisms that look much like plants but have no specialized tissues |
| What is binomial nomenclature? |
A system of naming organisms that uses the genus name and the species identifier |
| What is taxonomy? |
The science of grouping organisms according to their presumed evolutionary relationships |
| What is phylogeny? |
The evolutionary history of species or taxonomic group |
| Who was Aristotle? |
Greek philosopher who first classified organisms as plants or animals |
| Who was Linnaeus? |
Scientist that developed the system of classifying organisms by assigning them a genus and a species name |
| What are Archaebacteria? |
Unicellular prokaryote, oldest organisms known |
| Aristotle classified animals on the basis of...? |
habitat |
| The main criterion used in Linnaeu's system of classification is an organism's...? |
morphology |
| What is the proper format for writing a scientific name? |
Both genus and species identifier must be underlined or italicized |
| Aristotle classified plants on the basis of differences in their...? |
Stems |
| Scientific names are written in what language? |
Latin |
| Some animal species are divided into..? |
Subspecies |
| The correct order of biological heirarchy from kingdom to species is...? |
Kingdom, phylum, class, order, family, genus, species |
| Without exception all animals must have...? |
Multi-cellularity |
| Which two types of tissue are found only in animals? |
Muscle and nerve |
| The concentration of sensory receptors in a head is called...? |
Cerniation |
| __________ is the adaption of a cell for a particular function |
Specialization |
| _________ is a process in which the cells of a multicellular individual become specialized during development |
Differentiation |
| Which is the only Cephalopod to retain its chell? |
Chambered nautilus |
| What is a Mollusk without a shell? |
Slug |
| What is not a class of the phylum Molluska? |
Chiton |
| How many tentacles does a squid have? |
10 |
| Clams are...? |
Bivalves |
| Segmented worms are known as...? |
Annelids |
| The appendages of arthropods... |
may serve for walking and may be modified into large pinchers that are jointed |
| What is not an arthropod? |
Flat worm |
| Which groups of arthropods have antennae |
Crustacea |
| Spiders typically have...? |
2 body segments and 8 legs |
| Most insects have...? |
4 wings/ 3 pairs of legs |
| What are the chewing mouthparts of arthropods called? |
Mandibles |
| To what part of the body do wings on the grasshopper attach? |
Thorax |
| Arachnids have 8 simple eyes called...? |
Ocelli |
| What is chrysalis? |
The pupa stage |
| What is the difference between complete and incomplete metamorphosis? |
In incomplete there is no larva stage |
| Organ under the liver that stores bile... |
Gall bladder |
| The organ that is the first site for chemical digestion...? |
Liver |
| What animal belongs to Lagomorpha? |
Rabbit |
| What animal belongs to Chiroptera? |
Fruit bat |
| What animal belongs to Rodentia? |
Squirrel |
| What animal belongs to Primate? |
Lemur |
| What animal belongs to Sirenia? |
Manatee |
| Streamlined bodies efficient for swimming...? |
Pennipeds |
| Monotremes are different from marsupials and placental mammals in that monotremes...? |
Lay eggs |
| What order do anteaters belong to...? |
Andatata |
| What is the difference between the artiodactyls and the perissodactyls? |
Artiodactyls-even # of toesPerrisodactyls-odd # of toes |
| What animals belong to the order of Cetaceans? |
Whales and Dolphins |
| An animal that hatches from an eggs, has fur, and obtains milk from its mother is a..? |
Monotreme |
| Nourishment and oxygen are provided by the mother to the fetus through the...? |
Placenta |
| How are Proboscidea characterized? |
Boneless, trunked nose |
| Offspring remain inside the mother until developement is essentially complete in...? |
Placental mammals |
| The only order of mammals capable of powered flight are...? |
Chiroptera |
| The platypus and two species of echidnas are the only living...? |
Monotremes |
Zak Solcher
on 2009-05-26
500 Words
