Revise later
SpaceTo flip
If confident
All Flashcards
Define fitness in a biological context.
Fitness is an organism's ability to survive and reproduce in a particular environment.
What are adaptations?
Beneficial traits that help an organism survive and reproduce better in its environment.
What is variation?
Differences in DNA that lead to different proteins, allowing organisms to respond differently to environmental stimuli.
Define natural selection.
The process where organisms with advantageous traits are more likely to survive and reproduce, passing those traits to the next generation.
Define evolution.
The change in the genetic makeup of a population over time.
What is the effect of environmental pressures on a population's genetic makeup?
Over time, environmental pressures can alter the genetic makeup of a population, leading to evolution.
What happens when organisms have better survival and reproduction capabilities?
They pass down their DNA more frequently, increasing the prevalence of their traits in the population.
What is the effect of different types of phospholipids in cell membranes?
Different melting points affect membrane fluidity, allowing organisms to adapt to various temperatures.
What is the effect of different types of hemoglobin?
Different oxygen-binding properties allow organisms to maximize oxygen absorption during different developmental stages.
What is the effect of different types of chlorophyll?
Organisms can exploit different parts of the light spectrum for photosynthesis.
What are the key differences between natural selection and evolution?
Natural selection: a mechanism of evolution | Evolution: the change in genetic makeup of a population over time.
What are the differences between adaptation and acclimatization?
Adaptation: genetic change over generations | Acclimatization: short-term response to environmental change.