Answer the following question given this paragraph: Living arthropods are divided into four subphyla. They are described in Table below . The Hexapoda subphylum includes mainly insects. There are so many insects and they are so important that they are described in greater detail below. Q: The hexapoda subphylum includes mainly what type of animal? Choices: - spiders - mammals - birds - insects A:
insects
(Question)
Answer the following question given this paragraph: Most scientists agree that the Earth itself is not a living thing. However, the Earth does have some aspects of life. Some scientists argue that the Earth maintains homeostasis, a stable state, just like a living organisms. Q: The earth is like organisms in that it maintains a stable state, which is also known as what? Choices: - ketosis - hibernation - dormancy - homeostasis A:
(Answer)
homeostasis
Ques: Answer the following question given this paragraph: Figure 43.21 There is rapid fetal growth during the third trimester. (credit: modification of work by Gray's Anatomy). Q: What trimester is associated with rapid fetal growth? Choices: - first trimester - fourth trimester - second trimester - third trimester A:
Ans: third trimester
(Q).
Answer the following question given this paragraph: n = cv , where v is the observed speed of light in the material. Since the speed of light is always less than only in a vacuum, the index of refraction is always greater than or equal to one. Q: The constant "c" can be specifically used to represent the (extremely fast) speed of what? Choices: - electricity - sound - gravity - light A:
(A).
light
Ques:Answer the following question given this paragraph: 37.2 How Hormones Work Hormones cause cellular changes by binding to receptors on target cells. The number of receptors on a target cell can increase or decrease in response to hormone activity. Hormones can affect cells directly through intracellular hormone receptors or indirectly through plasma membrane hormone receptors. Lipid-derived (soluble) hormones can enter the cell by diffusing across the plasma membrane and binding to DNA to regulate gene transcription and to change the cell's activities by inducing production of proteins that affect, in general, the long-term structure and function of the cell. Lipid insoluble hormones bind to receptors on the plasma membrane surface and trigger a signaling pathway to change the cell's activities by inducing production of various cell products that affect the cell in the short-term. The hormone is called a first messenger and the cellular component is called a second messenger. G-proteins activate the second messenger (cyclic AMP), triggering the cellular response. Response to hormone binding is amplified as the signaling pathway progresses. Cellular responses to hormones include the production of proteins and enzymes and altered membrane permeability. Q: Hormones cause cellular changes by binding to receptors on these? Choices: - able cells - fighter cells - reach cells - target cells A:

Ans:target cells
Answer the following question given this paragraph: Minerals Minerals in food are inorganic compounds that work with other nutrients to ensure the body functions properly. Minerals cannot be made in the body; they come from the diet. The amount of minerals in the body is smallonly 4 percent of the total body massand most of that consists of the minerals that the body requires in moderate quantities: potassium, sodium, calcium, phosphorus, magnesium, and chloride. The most common minerals in the body are calcium and phosphorous, both of which are stored in the skeleton and necessary for the hardening of bones. Most minerals are ionized, and their ionic forms are used in physiological processes throughout the body. Sodium and chloride ions are electrolytes in the blood and extracellular tissues, and iron ions are critical to the formation of hemoglobin. There are additional trace minerals that are still important to the body's functions, but their required quantities are much lower. Like vitamins, minerals can be consumed in toxic quantities (although it is rare). A healthy diet includes most of the minerals your body requires, so supplements and processed foods can add potentially toxic levels of minerals. Table 24.5 and Table 24.6 provide a summary of minerals and their function in the body. Q: What is critical for the formation of hemoglobin? Choices: - salts - proteins - platelets - iron ions A:
iron ions