Answer the following question given this paragraph: Visual Communication in Animals. Many animals use visual cues to communicate. Q: The process in which animals use visual cues to communicate is known as what? Choices: - visual indication - peripheral communication - distinctive communication - visual communication A:
visual communication
Answer the following question given this paragraph: Many animals go through daily cycles. Daily cycles of behavior are called circadian rhythms. For example, most animals go to sleep when the sun sets down and wake up when the sun rises. These animals are active during the day and called diurnal. Other animals go to sleep when the sun rises and wake up when the sun sets. These animals are active during the night and called nocturnal. Many owls, like the owls in Figure below , are nocturnal. Like some other nocturnal animals, they have large eyes that are specially adapted for seeing when light levels are low. Q: What term refers to an animal that sleeps during the day and is active at night? Choices: - diurnal - crepuscular - solitary - nocturnal A:
nocturnal
Q: Answer the following question given this paragraph: Noble gases are the least reactive of all elements. That's because they have eight valence electrons, which fill their outer energy level. This is the most stable arrangement of electrons, so noble gases rarely react with other elements and form compounds. Q: What type of gases are the least reactive of all elements? Choices: - brave - humble - lucky - noble A:
A: noble
Question: Answer the following question given this paragraph: 7.2 History of cell knowledge The optical microscope was first invented in 17th century. Shortly thereafter scientists began to examine living and dead biological tissues in order to better understand the science of life. Some of the most relevant discovery milestones of the time period include: The invention of the microscope11 , which allowed scientists for the first time to see biological cells Robert Hooke12 in 1665 looked at cork under a microscope and described what he called cork "cells" Anton van Leeuwenhoek13 called the single-celled organisms that he saw under the microscope "animalcules" Matthias Jakob Schleiden14 , a botanist, in 1838 determined that all plants consist of cells Theodor Schwann15 , a zoologist, in 1839 determined that all animals consist of cells Rudolf Virchow16 proposed the theory that all cells arise from previously existing cells In 1838, the botanist Matthias Jakob Schleiden and the physiologist Theodor Schwann discovered that both plant cells and animal cells had nuclei. Based on their observations, the two scientists conceived of the hypothesis that all living things were composed of cells. In 1839, Schwann published 'Microscopic Investigations on the Accordance in the Structure and Growth of Plants and Animals', which contained the first statement of their joint cell theory. Q: In what century was the microscope invented? Choices: - 20th - 16th - 15th - 17th A:
Answer: 17th
*Question*
Answer the following question given this paragraph: The shape of the path of an object undergoing projectile motion is a parabola. Q: The shape of the path of an object undergoing projectile motion is called? Choices: - linear - a triangle - spherical - a parabola A:
**Answer**
a parabola
*Question*
Answer the following question given this paragraph: Only a tiny fraction of the ocean floor has ever been studied. Why? Humans can't travel deep below the water's surface without special vehicles. The pressure of the water is too great. Total darkness and extreme cold make it even more difficult. That's why people have worked for decades to invent technology for studying the ocean floor. Q: What is the name of artificial barriers that people build to protect shorelines? Choices: - seawalls - domes - outcroppings - breakwaters A:
**Answer**
breakwaters