What is the job of researchers in the Astronaut Microbiome Project? To study changes in microbiomes inside astronauts on Earth To make sure astronauts’ microbiomes are all alike To study astronauts’ microbiomes to keep them healthy in space To destroy microbiomes ...
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What statement is supported by the evidence from the passage? Exercise keeps astronauts’ muscles strong. Balanced meals and vitamins help fight sickness. Good sleeping habits improve overall health. Astronauts’ preventive habits help them stay healthy in space. Healthy habits are ...
Which statement is supported by the evidence from the passage? The gut microbiome produces important vitamins. The gut microbiome digests food and breaks down toxins. The gut microbiome crowds out disease-causing organisms. Microbiomes function differently in space. Microbiomes do not ...
What is this passage mostly about? Some microbes cause disease and odor, while others keep you healthy. Bad mushrooms and dairy products can harm the body’s microbes. Microbes differ from person to person and can cause reactions to things.
What is unique about clothing made of a fabric called polyester? Polyester clothing does not need to be washed. Polyester clothing does not make you sweat when you wear it. Polyester clothing smells bad even after you wash it.
Why might a missing call be a sign that a rainforest is in trouble? It signals that the recorders have been damaged by animals. It signals that a species of animal is no longer in the area. It signals that some ...
What are “they” listening for? To tell how species of animals are different To find out if the call of an animal is missing To hear the heartbeats of many animals
Listening to __________ is like putting a stethoscope to a person’s heart, though scientists don’t hear just one animal at a time. the musicians the calls the researchers the problems
Why are some signs of a healthy rainforest harder to spot? Scientists studying rainforests can get lost in dense areas. Some species in a rainforest look like different species. Rainforests have too many resident animals to count. Animals in a ...
What is one reason to keep “them” safe and healthy? Creatures that have homes there can help activists. Rainforests are home to many different creatures. Activists want to make their homes in rainforests.
Choose ALL the numbers that are multiples of 4. 40 42 44 48 50 52
Choose ALL the numbers that are multiples of 4. 16 18 24 30 32 38
All multiples of 4 are even numbers. All even numbers are multiples of 4. True False
A majority of the cheesemaking plants in the United States are located in the Midwest; Wisconsin alone boasts more than one hundred creameries. Some cheese experts claim the best cheese made in America comes from this region. Why are Midwestern ...
On March 20, 1966, the solid-gold World Cup trophy was stolen in London, just four months before England was to host the international soccer tournament. Officials began a desperate search but failed to unearth the prize. One night, when a ...
Art museums around the country host programs for teens every year. Are these programs worthwhile? Four museums around the country conducted a study to determine their effects. More than three hundred past participants, ranging in age from eighteen to thirty-six, ...
When applying for a new job, you may be asked to submit a résumé or a CV. Both documents serve as an introduction and provide information that is useful to employers. The word résumé is French and means “summary.” A ...
Though we think of dinosaurs as being extinct, recent research suggests that their modern relatives live among us in the form of birds. Like birds, many dinosaurs built nests, laid eggs, and had feathers. Over the last twenty years, scientists ...
Small-scale fishing performed with nets is one of the most common fishing methods used around the world. One of the unfortunate side effects of this method is that sea turtles, which are considered threatened, get caught in the nets along ...
During World War II, American and British forces dropped millions of tons of bombs on German cities. Nearly ten percent of the bombs never exploded. The war ended in 1945, but more than two thousand tons of unexploded bombs are ...
In the Gold Rush of 1849, some one hundred thousand immigrants were lured to California by the promise of gold. Towns and businesses popped up to accommodate the growing population, but a problem remained: how to communicate across the vast ...
William Shakespeare is widely credited with adding more than 1,700 new words to the English language in the late fifteenth and early sixteenth centuries. Yet some scholars question that estimate, suggesting that some of the “new” words credited to Shakespeare ...
Birds have a reputation as excellent parents. They expend a great deal of effort in building nests in which to lay their eggs. They patiently incubate the eggs, keeping them warm and safe until they hatch. Birds also bring food ...
Alexa has 3/4 of a pound of bird seed left to share equally between 2 bird cages in her pet shop. How many pounds can she put in each bird cage? Write your answer as a fraction or as a whole ...
Planet X is 1/6 of a light-year away from Earth. Planet Y is 1/12 of a light-year away from Earth. How much farther away is Planet X? Write your answer as a fraction or as a whole or mixed number.
Austin watched a beetle and a spider on the sidewalk. The beetle crawled 2 yards and the spider crawled 1/5 of a yard. How much farther did the beetle crawl than the spider? Write your answer as a fraction or ...
What quantity of mint would you need to make a half recipe? 2 2/3 teaspoons mint Write your answer as a fraction or as a whole or mixed number. teaspoons
A meteorologist found that the rainfall in Livingston during the first half of the month was 1/2 of an inch. At the end of the month, she found that the total rainfall for the month was 3 1/8 inches. How ...
While making desserts for a bake sale, Sebastian used 4/5 of a scoop of brown sugar as well as 1/2 of a scoop of white sugar. How much more brown sugar did Sebastian use? Write your answer as a fraction ...
Ariana jogged 1/5 of a lap in P.E. class and 1/3 of a lap during track practice. How many laps did Ariana jog in all? Write your answer as a fraction or as a whole or mixed number. laps
How many more cups of flour than butter are needed? 2/3 cup flour 1/2 cup butter
The cattle at the Polk Farm are fed 5 bales of hay each day. The horses are fed 1 5/6 times as much hay as the cattle. How many bales of hay are the horses fed each day? Write your ...
Robert needs to buy 5 5/8 feet of packaging tape. There are 1 7/8 feet of tape on each roll. How many rolls of tape should Robert buy? Write your answer as a fraction or as a whole or mixed number. ...
Darrell and Bruce are collecting clothes for a clothing drive. Bruce collected 7/10 as many clothes as Darrell did. If Darrell collected 1/3 of a bag of clothes, how many bags of clothes did Bruce collect? Write your answer as a ...
A fancy restaurant put out small dishes of butter at each table. They divided 7 1/4 pounds of butter evenly and filled 2 dishes. How much butter did they put in each dish? Write your answer as a fraction or ...
Riley brings 6 1/2 bottles of iced tea to her class picnic. If Riley divides the iced tea evenly among her 5 classmates, how much iced tea will each of her classmates get? Write your answer as a fraction or ...
While making desserts for a bake sale, Derek used 2 3/4 scoops of brown sugar as well as 1 scoop of white sugar. How much more brown sugar did Derek use? Write your answer as a fraction or as a ...
Kinsley made 5/6 of a pound of trail mix. If she puts 1/6 of a pound into each bag, how many bags can Kinsley fill? Write your answer as a fraction or as a whole or mixed number. ___ bags
Eddie’s daughter wanted to decorate her room with her favorite color, white. Eddie had 15 2/5 cans of white paint stored in the garage. He used 7 4/5 cans to paint his daughter’s room. How much white paint did Eddie ...
A marine biologist measured one fish that was 8 1/2 feet long and a second fish that was 6 feet long. How much longer was the first fish? Write your answer as a fraction or as a whole or mixed ...
Ivan and Edmond each made a bowl of punch. Edmond used 4 1/3 times as much lemonade as Ivan did. If Ivan used 1/2 of a cup of lemonade, how many cups of lemonade did Edmond use? Write your answer ...
A fancy restaurant put out small dishes of butter at each table. They divided 7 1/4 pounds of butter evenly and filled 2 dishes. How much butter did they put in each dish? Write your answer as a fraction or as ...
In the following equation, what is the value of n? 8^n = 8^-3 · 8^7 n =
Select all the expressions that are equivalent to 8 raised to the power of negative 5 divided by 2 raised to the power of negative 5. (4 raised to the power of negative 1) raised to the power of 5 4
Put the expressions in order from least to greatest. 1. 11^4 / 11^11 2. 1 / 11^-4 3. (11^-3)^-3 4. 11^5 · 11^2
In the following equation, what are possible values for c and d? 4^c · 4^d = 4^9 c = d =
In the following equation, what are possible values for g and h? (5 raised to the power of g times h) = 5 raised to the power of 12 g = h =
Which two expressions are equivalent to each other? 9^-5 (9^2)^-3 9^9 / 9^4 9^4 · 9^-9