Studied by 12 people
Evolution
________ is a change in the characteristics of a population over time.
experimental prediction
A(n) ________ describes a measurable or observable result that must be correct if a hypothesis is valid.
Adaptation
________ is a heritable trait that increases the fitness of an individual in a particular environment relative to individuals lacking that trait.
central dogma
The ________- first articulated by Crick- describes the flow of information in cells.
ATP
Organisms have two fundamental nutritional needs- chemical energy in the form of a molecule called ________ (or adenosine triphosphate) and molecules that can be used as building blocks.
eukaryotes
In all ________ (literally,"true- kernel), "cells have a prominent component called the nucleus.
vast majority
The ________ of bacterial and archaeal cells lack a nucleus, they are referred to as prokaryotes.
structural components
Proteins are crucial to most tasks required for a cell to exist, from forming ________ to promoting the chemical reactions that sustain life.
Cells
________ throughout your body are using information stored in your genes to make the substances, or molecules.
RNA
Molecular machinery in cells makes a copy of a particular genes information in the form of a closely related molecule called ribonucleic acid, or ________.
Fitness
________ means an individuals ability to produce viable offspring relative to that ability in other individuals in the population . "
Energy
________: To stay alive and reproduce, organisms have to acquire and use ________.
Replication
________: Almost everything an organism does contributes to one goal: replicating itself.
Scientists
________ define a theory as an explanation for a veηr broad class of observed phenomena that is supported by a wide body of evidence.
Information
________: Organisms process hereditary, or genetic, ________ encoded in units called genes.
null hypothesis
A(n) ________ specifies what should be observed when the hypothesis being tested isnt correct.
chromosome
A(n) ________ consists of a molecule of deoxyribonucleic acid, or DNA.
testable statement
The all- cells- from- cells explanation was a hypothesis: a(n) ________ to explain a set of observations.
Evolution
________: Organisms are the products of ________, and their populations continue to ________ today.
An organism is a life form
a living entity made up of one or more cells
Cells
Organisms consist of membrane-bound units called cells
Information
Organisms process hereditary, or genetic, information encoded in units called genes
Energy
To stay alive and reproduce, organisms have to acquire and use energy
Evolution
Organisms are the products of evolution, and their populations continue to evolve today
The complete cell theory builds on this concept
All organisms are made of cells, and all cells come from preexisting cells
The all-cells-from -cells explanation was a hypothesis
a testable statement to explain a set of observations
Chromosome theory of inheritance
Inside cells, hereditary or genetic information is encoded in units called genes 1at are located on chromosomes
Biologists today often use the term phylum (plural
phyla) to refer to major lineages within each domain
Genus The first part of 1e two-part name indicates the organisms genus (plural
genera)
Step 1
State the hypothesis as precisely as possible and list the predictions it makes
Step 2
Design an observational or experimental study that is capable of testing those predictions
