Ques: Q: When the oval window vibrates, it causes what else to vibrate as well? Read this paragraph and choose the correct option from the provided answers: The stirrup in the middle ear passes the amplified sound waves to the inner ear through the oval window. When the oval window vibrates, it causes the cochlea to vibrate as well. The cochlea is a shell-like structure that is full of fluid and lined with nerve cells called hair cells. Each hair cell has many tiny "hairs," as you can see in the magnified image below . When the cochlea vibrates, it causes waves in the fluid inside. The waves bend the "hairs" on the hair cells, and this triggers electrical impulses. The electrical impulses travel to the brain through nerves. Only after the nerve impulses reach the brain do we hear the sound. Choices: - cilia - timpani - hammer and anvil - the cochlea A:
Ans: the cochlea

Ques: Q: Which kind of genetics approach involves mutating or deleting genes provides researchers with clues about gene function? Read this paragraph and choose the correct option from the provided answers: Watch this short video (http://openstaxcollege. org/l/transgenic) explaining how scientists create a transgenic animal. Although the classic methods of studying the function of genes began with a given phenotype and determined the genetic basis of that phenotype, modern techniques allow researchers to start at the DNA sequence level and ask: "What does this gene or DNA element do?" This technique, called reverse genetics, has resulted in reversing the classical genetic methodology. One example of this method is analogous to damaging a body part to determine its function. An insect that loses a wing cannot fly, which means that the wing's function is flight. The classic genetic method compares insects that cannot fly with insects that can fly, and observes that the non-flying insects have lost wings. Similarly in a reverse genetics approach, mutating or deleting genes provides researchers with clues about gene function. Alternately, reverse genetics can be used to cause a gene to overexpress itself to determine what phenotypic effects may occur. Choices: - possible genetics - impossible genetics - inverse genetics - reverse genetics A:
Ans: reverse genetics

Ques: Q: What bodily substance is formed from cells, and in turn helps make up organs? Read this paragraph and choose the correct option from the provided answers: Organisms are organized in the microscopic level from atoms up to cells. The matter is structured in an ordered way. Atoms are arranged into molecules, then into macromolecules, which make up organelles, which work together to form cells. Beyond this, cells are organized in higher levels to form entire multicellular organisms, as shown in Figure below . Cells together form tissues, which make up organs, which are part of organ systems, which work together to form an entire organism. Of course, beyond this, organisms form populations which make up parts of an ecosystem. All of Earth's ecosystems together form the diverse environment that is Earth. Choices: - tendons - muscles - ligaments - tissues A:
Ans: tissues

Ques: Q: Lack of proper food over a period of time can lead to what condition, where the body is not getting enough nutrients to grow and stay healthy? Read this paragraph and choose the correct option from the provided answers: Refusing one meal won't stunt your growth. But lack of proper food over a period of time can lead to malnutrition. That means, the body is not getting enough nutrients to grow and stay healthy. Kids who are malnourished may not grow as tall as they would otherwise. Choices: - anemia - mortality - bulimia - malnutrition A:
Ans:
malnutrition