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In a snowy environment white rabbits are less likely to be seen by predators than brown rabbits. Over many generations, the white-furred rabbits survive & reproduce more, causing the population to shift toward white fur
Artificial breeding
Instant evolution
Natural selection
Genetic drift
When a human body becomes too hot, it produces sweat to cool down; when it becomes too cold, it shivers to generate heat. This internal balancing act to maintain a stable environment is called:
Homeostasis
Metabolism
Digestion
Respiration
While most sunflowers in the field had yellow petals, a random change in the DNA sequence of one seed caused the resulting flower to grow bright red petals. This permanent alteration in the genetic code is a:
Trait
Adaptation
Mutation
Selection
After hatching from its egg, the young monarch exists as a caterpillar, eating leaves voraciously before it can eventually transform into a butterfly. In this early, immature stage of its life cycle, the organism is a:
Larva
Adult
Zygote
Pupa
A young bird hatches with the same unique beak shape and feather color as its parents because the genetic information was passed down through their DNA. This transfer of traits from one generation to the next is:
Inheritance
Mutation
Acquisition
Segmentation
Earthworms and lobsters have bodies that are divided into a series of repeated, distinct parts or sections, allowing for more specialized movement and organ placement. This structural body plan is known as:
Calcification
Skeletonization
Segmentation
Fragmentation
By studying fossil records and DNA, scientists found that modern birds evolved from a specific group of small, feathered dinosaurs. This extinct organism from which the modern group descended is their:
Descendant
Predator
Ancestor
Offspring
A pea plant can have a gene for seed color, but that gene might come in two different versions: one for green and one for yellow. Each specific version of a gene is called an:
Chromosome
Nucleus
Protein
Allele
When you scrape your knee, your skin cells must divide to create two identical "daughter" cells to replace the damaged tissue. This type of cell division for growth and repair is:
Fertilization
Meiosis
Photosynthesis
Mitosis
In order to produce specialized cells for reproduction that have only half the original number of chromosomes, an organism undergoes a specific type of cell division called:
Mitosis
Meiosis
Budding
Binary fission
In humans, the sperm and the egg are specialized reproductive cells that join together during fertilization. These "sex cells" are scientifically known as:
Embryos
Tissues
Somatic cells
Gametes
The island can only provide enough food and water for 500 deer. If the population grows beyond that number, many will starve until the population returns to a level the environment can support. This maximum limit is the:
Carrying capacity
Biodiversity
Population density
Growth rate
After the forest fire, the first signs of life were the small grasses and shrubs that began to cover the blackened soil. All the plant life in this specific region is referred to as:
Topsoil
Fauna
Wildlife
Vegetation
A tropical rainforest contains thousands of different species of plants, insects, birds, and mammals, making it much more resilient than a farm that only grows one type of corn. This variety of life in an ecosystem is:
Taxonomy
Biodiversity
Ecology
Overpopulation
In the desert and along the coastline, the wind blows loose sand into large, shifting mounds or ridges of sand. These formations are called:
Plateaus
Canyons
Deltas
Dune
Over thousands of years, the rushing water of the river slowly wore away the rock, carving out a deep canyon and carrying the sediment downstream. This process of wearing down and moving earth materials is:
Deposition
Erosion
Solidification
Evaporation
