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loving life
Dating
Daughters Same a Parent
Half the Info, Four Time the Daughters
Going Green
100
a model that shows the amount of energy available in each link of a food chain
What is energy pyramid?
100
the time it takes for half of the atoms in a radioactive element to decay
What is half-life?
100
the nucleus and its contents divide
What is mitosis?
100
meiosis creates genetic by producing
What is haploid?
100
a mixture of weathered rock, rock fragments, decayed organic matter, water, and air
What is soil?
200
a model of energy transfer that can show how the food chains in a community are interconnected
what is food web?
200
a chart that divides Earth's history into different time units based on changes in the rocks and fossils
What is geologic time scale?
200
the cytoplasm and its contents divide
What is cytokinesis?
200
homologous chromosomes separate and are pulled to opposite ends of the cell
What is Anaphase 1?
200
the process by which nitrogen is converted between its various chemical forms
What is nitrogen cycle?
300
a model that shows how energy flows in an ecosystem through feeding relationships
What is food chain?
300
a technique used to determine the actual age of a fossil on the basis of the amount of a radioactive element it contains
What is radioactive dating?
300
are the two new cells that result from mitosis and cytokinesis
What is Daughter Cells?
300
nuclear membrane breaks apart
What is Prophase 2?
300
a chemical that kills bacteria or slows their growth without harming body cells
What is antibiotics?
400
the chemical element of atomic number 8 and the life-supporting component of the air
What is oxygen
400
a technique used to determine which two fossils is older
What is relative dating?
400
spindle fibers begin to shorten, pulling chromatids toward opposite sides of the cell
What is Anaphase?
400
the cytoplasm divides
What is telophase 2?
400
the millions of fossils that scientists have collected
What is fossil record?
500
a group of organisms that have similar traits and are able to produce fertile offspring
What is species?
500
the millions of fossils that scientists have collected
What is fossil record?
500
a body cell and its nucleus divide once and produce two identical cells
What is mitosis?
500
a reproductive cell and its nuclear divide twice and produces four cells-two pairs of identical haploid cells
What is meiosis?
500
the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere
What is carbon cycle?