Answer the following question given this paragraph: Gastropods include snails and slugs. They use their foot to crawl. They have a well-developed head. There are many thousands of species of sea snails and sea slugs, as well as freshwater snails, freshwater limpets, land snails and land slugs. Gastropods live in many diverse habitats, from gardens to deserts and mountains. They also live in rivers, lakes and the ocean. Most shelled gastropods have a one-piece shell that is typically coiled or spiraled, but not all gastropods have shells. Gastropods have no sense of hearing, but they can see and have a keen sense of smell. In land-based gastropods, the olfactory organs (for smell) are the most important. These are located on the tentacles. Q: Where are the olfactory organs of snails located? Choices: - their feet - their anus - their shell - their tentacles A:
their tentacles
(Question)
Answer the following question given this paragraph: Springs like the ones in Figure below also have elastic force when they are stretched or compressed. And like stretchy materials, they return to their original shape when the stretching or compressing force is released. Because of these properties, springs are used in scales to measure weight. They also cushion the ride in a car and provide springy support beneath a mattress. Can you think of other uses of springs?. Q: What causes an elastic force in springs? Choices: - velocity - momentum - freezing - stretching or compressing A:
(Answer)
stretching or compressing
Ques: Answer the following question given this paragraph: Figure 40.13 Cardiomyocytes are striated muscle cells found in cardiac tissue. (credit: modification of work by Dr. Girod, Anton Becker; scale-bar data from Matt Russell). Q: Cardiomyocytes are striated muscle cells found where? Choices: - in the diaphram - in lung tissue - in the intestines - in cardiac tissue A:
Ans: in cardiac tissue
(Q).
Answer the following question given this paragraph: A proton is a particle in the nucleus of an atom that has a positive electric charge. All protons are identical. It is the number of protons that gives atoms of different elements their unique properties. Atoms of each type of element have a characteristic number of protons. For example, each atom of carbon has six protons, as you can see in Figure below . No two elements have atoms with the same number of protons. Q: Which particle of an atom has a positive electric charge? Choices: - electron - nutron - nucleus - proton A:
(A).
proton
Ques:Answer the following question given this paragraph: Sugars are small, simple carbohydrates. They are found in foods such as milk and fruit. Sugars in foods such as these are broken down by your digestive system to glucose, the simplest of all sugars. Glucose is taken up by cells for energy. Q: What are sugars broken down into in your digestive system? Choices: - starch - insulin - nicotine - glucose A:

Ans:glucose
Answer the following question given this paragraph: The products of proto-oncogenes are required for normal growth, repair and homeostasis. However, when these genes are mutated, they turn into oncogenes and play a role in the development of cancer. Proto-oncogenes may be growth factors, transcription factors, or other proteins involved in regulation. A very common oncogene, ras , is normally a regulatory GTPase that switches a signal transduction chain on and off. Ras and Ras-related proteins are products of oncogenes found in 20% to 30% of human tumors. The transcription factor myc is an oncogene often seen mutated in Burkitt's lymphoma, a rare type of lymphoma, a cancer of the lymphocytes. Q: Mutation of beneficial proto-oncogenes is a prime culprit in what disease? Choices: - heart disease - diabetes - obesity - cancer A:
cancer