Each zebra has slightly different stripes that allow it to blend into the herd and confuse predators. Blending into the herd helps the zebras do which of the following?
Survive and reproduce
100
If a homozygous tall (T) pea plant is crossed with a homozygous short (t), what will their offspring look like?
They will all be tall.
100
If the particle of 2 substances have the same average kinetic energy, the substances have ________ temperatures.
Equal
100
What is commensalism?
When two organisms have a relationship where one benefits and the other is neither harmed nor helped.
200
Beaches and barrier islands along Florida's coast change shape quite dramatically when a hurricane or other storm hits them. What causes this change in shape?
The storms cause wind and waves that move the sand from one place to another.
200
Elephants are the largest land animals toda. They are the only mammals to have four knees, but they were not African or Asian elephants. How could the mammoths and elephants share this characteristic?
Elephants and Wooly Mammoths had a common ancestor.
200
In rabbits, brown fur color (F) is dominant to white fur color (f), what are the genotypes of the parents?
Ff and Ff
200
True of False
Ultraviolet light has less energy than visible light
False-
UV light has more energy than visible light
200
Cleaner fish feed on parasites in a shark's mouth and gills. What type of relationship do the cleaner fish and the shark have?
Mutualism
300
On a trip to the desert Marissa finds fossils of ancient oceanic shells. What explains how these fossils ended up in the desert.
The desert was once covered by an ocean that receded.
300
This is the process by which organisms with favorable traits will survive and reproduction, increasing those favorable traits in a population.
Natural Selection
300
In humans, brown eyes are dominant to blue eyes. Maggie has brown eyes and her two sisters both have blue eyes. If the allele for brown eyes is (B) and the allele for blue eyes is (b). Which of the following could be the genotype of Maggie's family?
A.) BB and Bb or B.) Bb and bb
B.) BB and bb
300
Brooke placed a spoon into a glass. She looked at the spoon under the water, it looked broken. Why does it look broken?
Light traveling through the air slows down when it moves through the water, causing it to refract.
300
What is parasitism?
A relationship where one organism benefits and the other is harmed.
400
Collin is learning about two parts of the rock cycle: weathering and erosion He needs to explain how weathering and erosion are different. What is the difference between weathering and erosion
Weathering is the breaking down of rocks, erosion is the movement of weathered materials.
400
Scientist studying a breed of tuna noticed that some of the tuna could swim faster than others. After 10 years of studying these "fast swimming" tuna out numbered the slower tuna. What could account for this change in population?
The slower tuna were not able to out swim predators.
400
In pea plants, purple flower color is dominant to the white flower color. Kendall has pea plants in her garden. Most of them have purple flowers, while some have white. If he crosses two pea plants that have white flowers, what color flowers will the resulting pea plants have?
100% white
400
Sydney is measuring sound waves as they travel through different materials. Sound waves travel fastest through what materials.
Solids
400
When a drought occurs and kills off most of a producer what will happen to all other levels of that food web?
The populations of all levels of consumers would decrease.
500
According to the most widely excepted hypothesis, what is the main force that causes tectonic plates to move.
Convection currents in Earth's lithosphere
500
In plants and animals, sexual reproduction causes variation within a species. This variation is vital to their survival. How does sexual variation affect a species' survival.
A species that has no variation might eventually become extinct.
500
Jae'lyn has two plants in her garden. One plant produces red flowers and the other plant produces white flowers. When Jae'lyn crossed a true-breeding plant with with white flowers with a true-breeding plant with red flowers, the offspring had pink flowers. What principle of heredity can explain why pink flowers are produced from this cross?
Incomplete dominance
500
While Jordan is swimming at the pool, he uses a ladder to get out of the water. When he looks down at the water, he notices that the ladder looks bent at the point where it enters the water. This phenomenon is a result of what?
Refraction
500
In any ecosystem, the survival of the species depends on the resources of that are available. BENEATH the TREE CANOPY in a rain forest. The availability of what resources most likely limits the amount of plants on the ground level in this ecosystem?