Q: The lowest resonant frequency is called the what? Read this paragraph and choose the correct option from the provided answers: Given that maximum air displacements are possible at the open end and none at the closed end, there are other, shorter wavelengths that can resonate in the tube, such as the one shown in Figure 17.28. Here the standing wave has three-fourths of its wavelength in the tube, or L = (3 / 4) , so that = 4L / 3 . Continuing this process reveals a whole series of shorterwavelength and higher-frequency sounds that resonate in the tube. We use specific terms for the resonances in any system. The lowest resonant frequency is called the fundamental, while all higher resonant frequencies are called overtones. All resonant frequencies are integral multiples of the fundamental, and they are collectively called harmonics. The fundamental is the first harmonic, the first overtone is the second harmonic, and so on. Figure 17.29 shows the fundamental and the first three overtones (the first four harmonics) in a tube closed at one end. Choices: - lowest - simplest - basic - fundamental A:
fundamental

Q: What is the term for a structure composed of more than one type of tissue? Read this paragraph and choose the correct option from the provided answers: Like animals, plants have organs that are specialized to carry out complex functions. An organ is a structure composed of more than one type of tissue. A tissue, in turn, is a group of cells of the same kind that do the same job. In this lesson, you will read about the tissues that do the important work of plants. The cells that make up plant tissues are described first. Choices: - marrow - system - cortex - organ A:
organ

Q: Q: What rate is generally higher for endotherms than for ectotherms? Read this paragraph and choose the correct option from the provided answers: Choices: - mortality - respiration - reproduction - metabolic A:
A: metabolic

Question: Q: In mammals, what layer protects the egg? Read this paragraph and choose the correct option from the provided answers: Early Embryonic Development Fertilization is the process in which gametes (an egg and sperm) fuse to form a zygote (Figure 18.8). To ensure that the offspring has only one complete diploid set of chromosomes, only one sperm must fuse with one egg. In mammals, a layer called the zona pellucida protects the egg. At the tip of the head of a sperm cell is a structure like a lysosome called the acrosome, which contains enzymes. When a sperm binds to the zona pellucida, a series of events, called the acrosomal reactions, take place. These reactions, involving enzymes from the acrosome, allow the sperm plasma membrane to fuse with the egg plasma membrane and permit the sperm nucleus to transfer into the ovum. The nuclear membranes of the egg and sperm break down and the two haploid nuclei fuse to form a diploid nucleus or genome. Choices: - Choloza - Germinal Disc - Albumen - zona pellucida A:
Answer: zona pellucida

*Question*
Q: After the egg is fertilized the mrna is translated into what? Read this paragraph and choose the correct option from the provided answers: Choices: - factor - mitochondria - DNA - protein A:
**Answer**
protein

(Question)
Q: Water molecules move about continuously due to what type of energy? Read this paragraph and choose the correct option from the provided answers: Water molecules move about continuously due to their kinetic energy. When a crystal of sodium chloride is placed into water, the water's molecules collide with the crystal lattice. Recall that the crystal lattice is composed of alternating positive and negative ions. Water is attracted to the sodium chloride crystal because water is polar and has both a positive and a negative end. The positively charged sodium ions in the crystal attract the oxygen end of the water molecules because they are partially negative. The negatively charged chloride ions in the crystal attract the hydrogen end of the water molecules because they are partially positive. The action of the polar water molecules takes the crystal lattice apart (see image below). Choices: - seismic - potential - optical - kinetic A:
(Answer)
kinetic