Tropisms
What is a plant's response to light called?
Phototropism
Where does photosynthesis occur?
Chloroplasts
What does DNA stand for?
Deoxyribonucleic acid
Sharp claws is an example of which type of adaptation?
Structural/physical
Natural selection is also called what?
Survival of the fittest.
What is a plant's response to touch called?
Thigmotropism
The part of the plant that absorbs sunlight and gives plant's its green color
Chlorophyll
What are the 3 parts of nucleotides?
Migrating is an example of what type of adaptation?
Behavioral adaptation
What is natural selection?
The process by which organisms better adapted to the environment will survive, reproduce, and pass on the favorable traits to their offspring
True or False: tropisms are internal stimuli.
False: external
What are the products of photosynthesis? (what is produces as a result of photosynthesis?)
Oxygen and glucose
Pairs with adenine in DNA
Thymine
Give an example of a structural and behavioral adaptation of a bear.
Structural: thick fur, sharp teeth, sharp claws, etc
Behavioral: hibernating, hunting habits, etc
How does natural selection occur?
Through inherited traits or mutations. Favorable traits will be passed on throughout generations.
List the negative and positive tropisms involved when a plant's roots are growing down towards the earth.
Positive: geotropism
Negative: phototropism
What are the reactants of photosynthesis? (what is needed for photosynthesis to occur?)
Carbon dioxide, sunlight, water
Pairs with adenine in RNA
Uracil
Give an example of a physiological adaptation.
Venom from poisonous organisms.
Explain what happened with the peppered moths during the industrial revolution.
Pollution caused the peppered moths to go from light to dark and back to light again. Answers will vary.
List the negative and positive tropisms involved when a plant is bending towards the light?
Negative: geotropism
Positive: phototropism
What reactants go into the light-dependent reaction of photosynthesis? What products go into the light-independent reactions of photosynthesis?
Light-dependent: sunlight and water - produces oxygen
Light-independent: carbon dioxide - produces glucose
Compare AND contrast DNA and RNA
DNA: double stranded, deoxyribose sugar, contains thymine, found in the nucleus, nade from nucleotides
RNA: single stranded, ribose sugar, contains uracil, also found in nucleus and sometimes cytoplasm, made from nucleotides
What is an adaptation and from which process does it occur?
A structure or feature that helps an organism survive. Happens through the process of natural selection.
How did Darwin come up with the theory of natural selection? Be specific!
Through studying the Galapagos finches.