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In the 1800s, the US military used horses to transport weapons and supplies through the American West. The dry, hot weather was difficult on the horses, and the terrain lacked the grass that horses fed on. In 1836, a US Army explorer recommended to the military that camels should be used instead. Why would camels be better to use than horses? A. Camels are native to the American West. B. Camels are cheaper to use and eat less food. C. Camels are adapted to live in a hot, dry climate. D. Camels are easier to train and can carry more equipment.
Two animals that live in Florida are the American bittern and the Key deer. The bittern is a bird that has a buff and brown colored back that allows it to blend in with the sawgrass of the lakes it lives near. When it feels threatened, the bittern freezes and points its head skyward to resemble a reed. The Key deer is brown in color, lives in the forest, and freezes when it feels threatened.How do these two animals use similar adaptations in order to survive in their very different environments? A. Both the bittern and the deer use their small size to hide from approaching predators. B. Both animals live in groups and huddle together with their family for protection from predators. C. Both animals use their coloring and lack of big movement to avoid being seen by predators. D. Both the bittern and the deer use the movement of the trees and bushes around them to distract predators so they can escape.
In the savannahs in Africa, elephants and giraffes both use acacia trees for food. What impact would removing these large animals from the savannah most likely have on the surroundings? A. The population of acacia trees would decrease. B. The trees would begin to take over and there would be less grass. C. The population of smaller animals would take over because there would be no predators. D. The large animals in other areas would migrate to the area and eat all of the trees on the savannah
Ashley is identifying insects and finds a camo moth. A camo moth looks like a leaf and is able to easily blend in with its surroundings. Which of the following is a result of this ability? The camo moth needs less food. B. The camo moth uses less energy. C. The camo moth has fewer offspring to care for. D. The camo moth has a greater chance of survival.
Caroline knows that cars using gasoline produce toxins, which reduce air quality. Which of the following is the best way we can reduce toxins in the air? Reduce the burning of fossil fuels. B. Drill for oil off of Florida's coastlines. C. Find different ways to conserve energy use at home D. Increase recycling of paper products, bottles, and cans.
Hurricane Andrew caused many animals in the Miami Zoo to become displaced. Two of the animals that lost their homes were the collared lemming which has thick white fur and sharp claws, and the other was a marsh rabbit that has thin brown fur and is a strong swimmer.If both were thought to have sought refuge in a Florida forest, which answer best describes the animal that would have a better chance of survival? the marsh rabbit, because its ability to swim helps it to scare away predators B. the collared lemming, because its sharp claws help it burrow into the ground to hide C. the collared lemming, because its thick, white fur helps it stay warm during the winter months D. the marsh rabbit, because its thin, brown fur helps it blend into its environment
The American Black Bear lives in many parts of North America. A black bear in Colorado might hibernate for three or more months in winter, while a black bear in Florida may hibernate for only a few weeks, or not at all. Which statement best explains why? Florida black bears are a different species from Colorado black bears. B. Florida black bears hibernate less because their climate is not as cold. C. Florida black bears have less territory and cannot risk a long hibernation. D. Florida black bears eat different food from bears in Colorado and need less rest.
The Brazilian Pepper plant was brought to Florida for decorating the yards of homes, but it has spread to Florida's wilderness. It is a large plant that grows quickly and has no natural predators. Based on these facts, why is the Brazilian Pepper a problem for Florida's native plants? The Brazilian Pepper takes up the space that native plants need in order to grow. B. Animals eat the Brazilian Pepper instead of native plants and spread its seeds instead. C. People prefer the appearance of the Brazilian Pepper so fewer native plants are grown. D. The Brazilian Pepper can pollinate with other plants and damage their ability to reproduce.
Animals which share the same space must compete for resources. Which answer is the best example of this? The cattle egret will stay close to grazing animals. When grazing animals move, they stir up insects, which the egret then eats. B. Some species of orchid look like a female bee. This attracts male bees, who leave pollen so that the orchid can reproduce. C. Humans cut down forests and built roads in the Florida Everglades. The Florida panthers living there had less territory and their population declined. D. Rhesus monkeys were released into the wild along Florida's Silver River. The monkeys have adapted to the environment and have lived there for over eighty years.
Living things can inherit behavior, learn it from other creatures, or change their behavior because of their environment. Which example describes learned behavior in a living thing? A sea turtle that hatches on a beach will crawl toward the ocean. B. Most humans begin to speak when they are one or two years old. C. Fireflies can produce light from their abdomens to attract mates. D. Sunflowers are able to turn to face the Sun to help them grow.
Giant pandas live in the mountain forests of China and eat mostly bamboo. The giant panda has a sixth “finger,” while other bears have only five. The sixth finger is a large wrist bone that giant pandas are able to bend and use as a thumb. Which of the following statements best explains why the sixth finger helps the giant panda survive in its environment? It helps the giant panda hold the bamboo stalks it feeds on. It helps the giant panda crush the bamboo stalks before it eats them. It allows the giant panda to dig in the mountain forests to hide its food. D. It allows the giant panda to climb to the tops of mountain forests to find food.
Green Algae Brine Shrimp Perch Kingfisher The sun provides the energy to be used by the living things in the lagoon food chain shown above. Which of the following describes the transfer of energy from a producer to a consumer? from Kingfisher to Perch from Perch to Brine Shrimp from Green Algae to the Sun D. from Green Algae to Brine Shrimp
What is the purpose of the pancreas? mixing blood and oxygen B. removing excess fluids from the body C. storing large quantities of blood, minerals and vitamins D. helping with digestion by secreting enzymes to process sugars
Which answer best describes the purpose of the liver in the human body? The liver mixes blood and oxygen. B. The liver removes excess fluids from the body. C. The liver stores large quantities of blood and oxygen. D. The liver cleans the blood coming from the digestive organs.
What is the purpose of the kidneys in the human body? Kidneys mix blood and oxygen together. B. Kidneys store unwanted fluids until they can be removed. C. Kidneys help to clean the oxygen that comes from the lungs. D. Kidneys help balance the salts and acids in the body by filtering blood.
Which part of the body protects organs, provides support, and forms blood cells? the brain B. the skeleton C. the heart D. the liver
Which organ does most of the processing of nutrients in the human body? the kidneys B. the large intestine C. the small intestine D. the pancreas
Which of the following organs helps with digestion and processes sugar in the body? the pancreas B. the kidneys C. the liver D. the lungs
Which organ cleans the blood coming from the digestive organs? the bladder B. the heart C. the liver D. the pancreas
Which of the following organs keeps the right balance of salts and acids in the body by filtering the blood? the pancreas B. the intestines C. the kidneys D. the lungs
Which answer best describes the purpose of the muscles in the human body? to protect tissues and form blood B. to produce movement and provide support C. to remove and use nutrients from food D. to combine blood and oxygen needed for movement
What is the purpose of the small intestine in the human body? combines oxygen and blood B. stores urine for later removal C. removes water from waste matter D. digests and absorbs nutrients from food
Organs in the human body carry out different functions. Which human organ breaks down food into nutrients that can be used by the human body? bladder stomach kidneys D. heart
Many kinds of animals live in the Everglades, including alligators, Florida panthers, and manatees. What characteristic do all three of these animals of the Everglades share? They all eat only fish. B. They all have a backbone. C. They all give birth to live young. D. They all make their homes in the water.
Samson spotted an animal in his yard that he had never seen before. It was lying on top of a pile of eggs. He could also tell that the animal's skin was tough and scaly. Based on this information, what kind of vertebrate was Samson most likely looking at? an amphibian B. a bird C. a mammal D. a reptile
Which organ in the fish is most similar to the human respiratory system? the fins B. the gills C. the skin D. the swim bladder
The scales of fish and the feathers of birds are both made from the same protein, called keratin. What is another characteristic birds and most fish share? Both are animals that lay eggs. B. Both are animals that have teeth. C. Both are animals that have cold blood. D. Both are animals that care for their young.
Plants have stems that function to provide support. This organ in plants is most similar to which of the following in humans? the heart B. the intestines C. the skeleton D. the skin
The poison dart frog and the red-bellied piranha are two dangerous animals that live in the Amazon in South America. What structure do both of these animals have in common? backbone B. beak C. gills D. scales
Ostriches are natives of Africa and can weigh as much as 130 kg (285 lbs). Hummingbirds, native to the Americas, weigh about 3 g (0.106 oz). How are the ostrich and the hummingbird similar? They both fly. B. They both lay eggs. C. They both eat only insects. D. They both make nests in trees.
information, which of the following animals is most similar to the whale? The chart below lists some of the physical characteristics of different animals. Based on this information, which of the following animals is most similar to the whale? crayfish B. dolphin C. shark D. starfish
Sharks and porpoises are very different. The porpoise is a mammal while the shark is a fish. What is one thing these two creatures have in common? Both lay eggs. B. Both have scales and fins. C. Both have an internal skeleton. D. Both breathe through gills and nostrils.
In what way are ferns different from flowering plants that produce seeds? The stems of ferns are woodier than the stems of seed producing flowers. B. Ferns spread by underground runners rather than scattering seeds from flowers. C. The leaf of a fern does not include structures to move nutrients through the plant. D. Ferns reproduce using spores rather than seeds produced by most flowering plants.
