Heredity
small sections of DNA that determine traits
What is a gene?
a difference among individuals of the same species
What is variation?
Tell me the type of adaptation that is being described.
Thick blubber on polar bears that help them warm in freezing temperatures
What is a structural adaptation?
What type of adaptation that is being described?
Birds build nest in high places.
What is a behavioral?
Fill in the blank. Genes are located on ____________.
What is a chromosome?
X-shaped bundles of DNA that hold many genes
Chromosomes
The process where organisms with helpful traits surivie and reproduce more than others
What is natural selection?
Tell me the type of adaptation that is being described.
Trees dropping leaves in winter that reduces water loss and conserves energy during cold months
What is a physiological adaption?
What type of adaptation is being described?
long necks on giraffes that helps the reach leaves in tall trees
What is structural?
Fill in the blank.
Chromosomes are found inside the _____________ of a cell.
What is the nucleus?
different versions of the same gene
What is an allele?
traits that help an organism survive and reproduce
What is an adaptation?
Tell me the type of adaptation that is being described. Thick, waxy leaves on plants that reduces water loss in hot or dry environments.
What type of adaptation is being described?
Rabbits larger ears that allow them to release heat and help with hearing
What is structural?
Fill in the blank. DNA contains the _____________ that determines an organism's traits.
What is DNA?
the molecule that carries all genetic information; structure looks like a spiral ladder
What is DNA?
Is this natural selection or not? Say Yes or No, and justify answer.
Cacti with thicker trunks store more water and are more likely to survivel in dry areas.
What is Yes, and the cacti with thicker trunks are an example of natural selection because it describes an adaptation that directly improves an organism's ability to survive in its environment?
Tell me the type of adaptation that is being described.
Snakes producing venom; This venom helps them catch prey and defend themselves
What is a physiological adaptation?
What type of adaptation is being described?
chameleon changing color
What is physiological?
Fill in the blank. _____________ are long strands of DNA tightly coiled inside the nucleus.
What is chromosomes?
What is gene, DNA, Chromosome, Nucleus, Cell?
Is this natural selection? Yes or No and Justify your reasoning. Imagine a population of green and brown beetles living on a dirt path. A person walks by and accidentally steps on most of the green beetles. The brown beetles are the population that survives over the green beetles.
What is No, and the brown beetles survive not because they were faster or better hidden, but simply because they weren't under the person's shoe.
Tell me the type of adaptation that is being described. nocturnal animals active at night
What is a behavioral adaptation?
Lizards basking in the sun
Is this trait inherited or learned (acquired)?
reading speed
What is a learned (acquired) behavior?