Answer the following question given this paragraph: Geology is the study of the solid Earth. Geologists study how rocks and minerals form. The way mountains rise up is part of geology. The way mountains erode away is another part. Geologists also study fossils and Earth's history. There are many other branches of geology. There is so much to know about our home planet that most geologists become specialists in one area. For example, a mineralogist studies minerals, as seen in ( Figure below ). Q: What is the name of the scientific field that deals with the general study of the solid earth? Choices: - astronomy - physics - chemistry - geology A:
geology
(Question)
Answer the following question given this paragraph: Behind the nasal cavity, air passes through the pharynx , a long tube. Both food and air pass through the pharynx. Q: Name the organ located behind the nasal cavity in which both food and air pass through? Choices: - medulla - sinus - diaphragm - pharynx A:
(Answer)
pharynx
Ques: Answer the following question given this paragraph: Consider the following example: Suppose you have a purple and white flower and purple color ( P ) is dominant to white ( p ). The white flower must be homozygous for the recessive allele, but the genotype of the purple flower is unknown. It could be either PP or Pp . A testcross will determine the organism's genotype. The unknown genotype can be determined by observing the phenotypes of the resulting offspring. If crossing the unknown dominant phenotype ( PP or Pp genotype) individual with the recessive phenotype individual produces only dominant phenotypes (no recessive), then the unknown individual is homozygous dominant. If any recessive phenotypic individuals result from the cross, then the unknown individual must carry the recessive allele, and have the heterozygous genotype. Q: An unknown genotype can be determined by observing what, the term for characteristics of the resulting offspring? Choices: - abnormalities - clusters - chromosonal variations - phenotypes A:
Ans: phenotypes
(Q).
Answer the following question given this paragraph: Q: Are birds and mammals mainly exothermic or endothermic? Choices: - autotrophic - hypothermic - exothermic - endothermic A:
(A).
endothermic
Ques:Answer the following question given this paragraph: The stirrup passes the amplified sound waves to the inner ear through the oval window (see Figure above ). 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 tiny hair-like projections, as you can see in Figure 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. Q: The cochlea is a shell-like structure that is full of fluid and lined with nerve cells called what? Choices: - sperm cells - red cells - brain cells - hair cells A:

Ans:hair cells
Question: Answer the following question given this paragraph: 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. Q: Which kind of genetics approach involves mutating or deleting genes provides researchers with clues about gene function? Choices: - possible genetics - impossible genetics - inverse genetics - reverse genetics A:
Answer:
reverse genetics