Is the sentence simple, compound, complex, or compound-complex? IXL

Artichokes, which originated in the Mediterranean, are now grown in the United States, almost exclusively in California.

Complex

Astronauts can experience bone loss, muscle weakness, and diminished heart function when they are exposed to environments with reduced gravity for a prolonged period of time.

Complex

Aviation pioneer Amelia Earhart, whose first flight across the Atlantic in 1928 was as a passenger, made her historic solo transatlantic flight in 1932.

Complex

Because most wild orchids naturally affix themselves to trees and branches, planting an orchid in soil will likely kill it.

Complex

Ellen, whose fair complexion makes her prone to sunburns, always wears sunscreen for protection against the sun's harmful ultraviolet rays.

Complex

In Beijing, China, eight luxury residential towers that were designed by Steven Holl Architects are connected on the twelfth through eighteenth floors by enclosed glass and steel bridges.

Complex

Ms. Roy, whom the board of directors recently named as the new company president, has extensive experience with corporate acquisitions and mergers.

Complex

The maple leaf, which is Canada's national emblem, has been associated with the country since the 1700s.

Complex

While Japan has an excellent network of traditional road, rail, air, and sea travel, the country also boasts the exceptionally fast and safe Shinkansen system of bullet trains.

Complex

Aaron has an unconventional swing, but he manages to drive the ball farther than some professional golfers.

Compound

An avid reader, Andrew attends weekly book club meetings, and he finishes several novels every month.

Compound

Annual plants survive only one season and must be replaced each year, but perennials return each year with new flowers and foliage.

Compound

Bows and arrows made their first appearance more than twenty-five thousand years ago, and archery has been used ever since for hunting, combat, and sport.

Compound

Keith always approaches difficult tasks enthusiastically, and he frequently motivates others with his energy and fervor.

Compound

Mulberry leaves are silkworms' natural food preference, but silk farmers will often feed the caterpillars a specially designed artificial diet.

Compound

Presidents John Adams and George H.W. Bush both had presidential sons, and coincidentally, both sons—John Quincy Adams and George W. Bush—were their fathers' namesakes.

Compound

Students are unhappy with the new dress code requirements, and they will be discussing their grievances at the next school board meeting.

Compound

The weather forecast had predicted severe thunderstorms, but the dark, heavy thunderclouds never materialized.

Compound

Throughout most of U.S. history, pants were considered shocking attire for women, but the mid-twentieth century saw increased acceptance of this once-controversial clothing item.

Compound

After a parrotfish eats algae-covered coral, the coral travels through the fish's digestive system, and then it is deposited in the reef as white coral sand.

Compound-complex

As cold weather approaches, you must protect your water pipes against freezing, or they can rupture and cause significant damage to your home.

Compound-complex

At the beginning of the Revolutionary War, the Americans had no existing army, so American troops were formed from militia—groups of citizens from the thirteen colonies who were trained for local defense.

Compound-complex

Humans breathe in before they dive underwater, but harbor seals exhale and then use stored oxygen for breathing.

Compound-complex

The basenji, which is a dog breed native to central Africa, doesn't produce a traditional bark, but it instead makes yodel-like sound due to the shape of its larynx.

Compound-complex

The conference's keynote speaker, who researches dialects of American English, was having audio problems, so he imitated all the accents in his presentation.

Compound-complex

The platypus has venom-producing glands, which are rare among mammals, but its venom is not generally lethal to humans.

Compound-complex

The saw-scaled viper does not have the deadliest venom, but it is responsible for more human deaths than any other snake because it lives in populated areas.

Compound-complex

Variations of bowling have existed for centuries, but a standard form of the game wasn't established until various regional bowling clubs formed the American Bowling Congress in 1895.

Compound-complex

We can watch the presidential debate, which will be broadcast at nine o'clock, or we can view the documentary about the greatest innovations of the twenty-first century.

Compound-complex

According to the American Yoga Association, practicing the three fundamental aspects of yoga—exercise, breathing, and meditation—can result in a healthier body and a more efficient mind.

Simple

Benjamin Franklin—scientist, inventor, and one of America's founding fathers—raised public awareness about firefighting methods and organized the first fire department in Philadelphia.

Simple

During World War I, President Woodrow Wilson kept sheep on the White House lawn and raised money for the Red Cross through the sale of their wool.

Simple

In 1988, Joe King, an engineering professor from California, made a 23-foot exact replica of the Eiffel Tower from 110,000 toothpicks.

Simple

Nobel Peace Prize winner Nelson Mandela campaigned for social equality in South Africa and later became the country's first democratically elected black president.

Simple

Rudy took several incredible panoramic photographs of the sweeping view from the top of Table Mountain.

Simple

Russia has a variety of natural resources, including oil, natural gas, timber, iron ore, copper, and lead.

Simple

Since 1923, the United States Flag Code has provided advisory rules for displaying and handling the U.S. flag.

Simple

The award-winning writer Maya Angelou composed "On the Pulse of the Morning" at the request of President Bill Clinton and recited the poem at his inauguration in 1993.

Simple

The right hemisphere of the human brain typically controls muscle movement on the left side of the body.

Simple

The vibrant trumpet-shaped blooms of the trumpet vine make it ideal for attracting hummingbirds.

Simple

Should I order the lasagna dish that Gina recommended, or should I sample several food items from the buffet?

compound-complex