Answer the following question given this paragraph: Shrimp are an example of crustaceans, one group within the arthropods. Shrimp live on the ocean floor in many parts of the world. Shrimp are not only food for humans; they are also an important food source for larger marine animals. Q: Shrimp are an example of what group within the arthropods? Choices: - myriapods - insect - scorpion - crustaceans A:
crustaceans
Answer the following question given this paragraph: The half-life of titanium-44 is 60.0 y. A sample of titanium contains 0.600 g of titanium-44. How much remains after 100.0 y?. Q: Name the type of system that a jellyfish does not have? Choices: - nervous - reproductive - hereditary - circulatory A:
circulatory
Q: Answer the following question given this paragraph: Water is an example of a common chemical compound. As you can see in the Figure below , each water molecule consists of two atoms of hydrogen and one atom of oxygen. Water always has this 2:1 ratio of hydrogen to oxygen. Like water, all compounds consist of a fixed ratio of elements. It doesn't matter how much or how little of a compound there is. It always has the same composition. Q: What molecule consists of two atoms of hydrogen and one atom of oxygen? Choices: - carbon monoxide - hydrogen peroxide - air - water A:
A: water
Question: Answer the following question given this paragraph: Sedimentary rocks that are not horizontal have been deformed. Q: What is a defining feature of deformed sedimentary rocks? Choices: - not solid - only horizontal - not magnetic - not horizontal A:
Answer: not horizontal
*Question*
Answer the following question given this paragraph: A gated channel protein is a transport protein that opens a "gate," allowing a molecule to pass through the membrane. Gated channels have a binding site that is specific for a given molecule or ion. A stimulus causes the "gate" to open or shut. The stimulus may be chemical or electrical signals, temperature, or mechanical force, depending on the type of gated channel. For example, the sodium gated channels of a nerve cell are stimulated by a chemical signal which causes them to open and allow sodium ions into the cell. Glucose molecules are too big to diffuse through the plasma membrane easily, so they are moved across the membrane through gated channels. In this way glucose diffuses very quickly across a cell membrane, which is important because many cells depend on glucose for energy. Q: What do many cells depend on glucose for? Choices: - food - heating - osmosis - energy A:
**Answer**
energy
(Q).
Answer the following question given this paragraph: organism's life cycle is as subject to the effects of evolutionary pressures as any other (although it is easy to concentrate our attentions on adult forms and behaviors). The study of these processes, known as embryology, is beyond our scope here, but we can outline a few common themes. If fertilized eggs develop outside of the body of the mother and without parental protection, these new organisms are highly vulnerable to predation. In such organisms, early embryonic development generally proceeds rapidly. The eggs are large and contain all of the nutrients required for development to proceed up to the point where the new organism can feed on its own. To facilitate such rapid development, the egg is essentially pre-organized, that is, it is highly asymmetric, with specific factors that can influence gene expression, either directly or indirectly, positioned in various regions of the egg (). Entry of the sperm (the male gamete), which itself is an inherently asymmetric process, can also lead to reorganization of the cytoplasm (SEP marks sperm entry point in the figure early frog development). Maternal and fertilization-driven asymmetries are stabilized by the rapid cycles of DNA replication and cell division, with growth being dependent upon the utilization of maternally supplied nutrients. As distinct cells are formed, they begin to become different from one another as i) they inherit different determinants, ii) the presence of these determinants leads to changes in gene expression, and iii) cells secrete and respond to different factors that drive their differentiation further into different cell types, with different behaviors based on differences in gene expression. On the other hand, in a number of organisms, and specifically mammals, embryonic development occurs within the mother, so there is no compelling need to stockpile nutrients within the egg and the rate of development is (generally) dramatically slower. In such developmental systems, it is not the asymmetries associated with the oocyte and... Q: In mammals, the cells on the exterior form the trophectoderm, which goes on to form what? Choices: - protoplanetary tissues - aeroponics tissues - cardiac tissues - extraembryonic tissues A:
(A).
extraembryonic tissues