Answer the following question given this paragraph: 44.4 Aquatic Biomes Aquatic ecosystems include both saltwater and freshwater biomes. The abiotic factors important for the structuring of aquatic ecosystems can be different than those seen in terrestrial systems. Sunlight is a driving force behind the structure of forests and also is an important factor in bodies of water, especially those that are very deep, because of the role of photosynthesis in sustaining certain organisms. Density and temperature shape the structure of aquatic systems. Oceans may be thought of as consisting of different zones based on water depth and distance from the shoreline and light penetrance. Different kinds of organisms are adapted to the conditions found in each zone. Coral reefs are unique marine ecosystems that are home to a wide variety of species. Estuaries are found where rivers meet the ocean; their shallow waters provide nourishment and shelter for young crustaceans, mollusks, fishes, and many other species. Freshwater biomes include lakes, ponds, rivers, streams, and wetlands. Bogs are an interesting type of wetland characterized by standing water, lower pH, and a lack of nitrogen. Q: What kind of ph would you find in water from bogs? Choices: - normal ph - higher ph - regular ph - lower ph A:
lower ph
(Question)
Answer the following question given this paragraph: Red blood cells are shaped like flattened disks. There are trillions of red blood cells in your blood. Each red blood cell has millions of molecules of hemoglobin. Hemoglobin is a protein that contains iron. The iron in hemoglobin gives red blood cells their red color. It also explains how hemoglobin carries oxygen. The iron in hemoglobin binds with oxygen molecules so they can be carried by red blood cells. Q: What in hemoglobin gives red blood cells their red color? Choices: - calcium - lead - barium - iron A:
(Answer)
iron
Ques: Answer the following question given this paragraph: Francium has an atomic number of 87. Write the chemical equation for the alpha particle emission of 212Fr. What is the daughter isotope?. Q: Which element has atomic number 87? Choices: - iron - argon - barium - francium A:
Ans: francium
(Q).
Answer the following question given this paragraph: Extracellular Matrix of Animal Cells Most animal cells release materials into the extracellular space. The primary components of these materials are proteins, and the most abundant protein is collagen. Collagen fibers are interwoven with carbohydrate-containing protein molecules called proteoglycans. Collectively, these materials are called the extracellular matrix (Figure 4.27). Not only does the extracellular matrix hold the cells together to form a tissue, but it also allows the cells within the tissue to communicate with each other. How can this happen?. Q: The extracellular matrix of most animal cells contains abundant amounts of what protein, which helps hold things together? Choices: - actin - elastin - keratin - collagen A:
(A).
collagen
Ques:Answer the following question given this paragraph: Laboratory testing has come to the local drug store or grocery store because of developments in chemistry. You can test your blood glucose using a simple portable device that runs a chemical test on the blood sample and tells you how much glucose is present, allowing a diabetic patient to regulate how much insulin to administer (chemistry is also used to produce the insulin and the disposable syringe that administers the drug). Q: Tests for levels of what in blood allow a diabetic patient to regulate how much insulin to administer? Choices: - alcohol - chloride - protein - glucose A:

Ans:glucose
Answer the following question given this paragraph: The final type of biomolecules that we will be looking at are the nucleic acids. Like carbohydrates and proteins, nucleic acids are complex polymers of a few simple building blocks. Nucleic acids provide the molecular blueprints for all proteins produced in living systems. We will explore the process by which this information is translated into functional structures later in this lesson. First, we will look at the structures of nucleic acids. Q: Which acids provide the molecular blueprints for all proteins produced in living systems? Choices: - periodic acids - amino acids - nitrous acids - nucleic acids A:
nucleic acids