Answer the following question given this paragraph: Loggerhead turtles spend most of their life in the ocean. Adult female loggerheads go ashore briefly to lay their eggs in the sand. Then they return to the water and leave the eggs to hatch on their own. Figure below shows baby loggerheads on a beach shortly after hatching. The baby turtles must make their way back to the water, hopefully without being snatched up by a predator. Loggerhead turtles are reptiles. Unlike amphibians, turtles and other reptiles can lay their eggs on dry land. That's because they produce amniotic eggs. Amniotic eggs have waterproof membranes to prevent them from drying out. Q: Laid on dry land by reptiles, amniotic eggs have what that prevents them from drying out? Choices: - double shells - double yolks - oil coating - waterproof membranes A:
waterproof membranes
Answer the following question given this paragraph: Most animals have an exoskeleton, including insects, spiders, scorpions, horseshoe crabs, centipedes, and crustaceans. Scientists estimate that, of insects alone, there are over 30 million species on our planet. The exoskeleton is a hard covering or shell that provides benefits to the animal, such as protection against damage from predators and from water loss (for land animals); it also provides for the attachments of muscles. As the tough and resistant outer cover of an arthropod, the exoskeleton may be constructed of a tough polymer such as chitin and is often biomineralized with materials such as calcium carbonate. This is fused to the animal's epidermis. Ingrowths of the exoskeleton, called apodemes, function as attachment sites for muscles, similar to tendons in more advanced animals (Figure 33.3). In order to grow, the animal must first synthesize a new exoskeleton underneath the old one and then shed or molt the original covering. This limits the animal's ability to grow continually, and may limit the individual's ability to mature if molting does not occur at the proper time. The thickness of the exoskeleton must be increased significantly to accommodate any increase in weight. It is estimated that a doubling of body size increases body weight by a factor of eight. The increasing thickness of the chitin necessary to support this weight limits most animals with an exoskeleton to a relatively small size. The same principles apply to endoskeletons, but they are more efficient because muscles are attached on the outside, making it easier to compensate for increased mass. Q: What is the term for the hard covering that protects insects, crustaceans, and spiders? Choices: - endoplate - endoskeleton - exoplate - exoskeleton A:
exoskeleton
Q: Answer the following question given this paragraph: Consider the example of water forming from hydrogen and oxygen. Both hydrogen and oxygen gases exist as diatomic ("two-atom") molecules. These molecules are the reactants in the reaction. The Figure below shows that bonds must break to separate the atoms in the hydrogen and oxygen molecules. Then new bonds must form between hydrogen and oxygen atoms to form water molecules. The water molecules are the products of the reaction. Q: What is the name for a molecule with two atoms? Choices: - hydrostatic - ionized - covalent - diatomic A:
A: diatomic
Question: Answer the following question given this paragraph: Eggs are female gametes that form in the ovaries and are released into the fallopian tubes. Q: What are the female gametes that form in the ovaries? Choices: - sperm - spermatozoa - genes - eggs A:
Answer: eggs
*Question*
Answer the following question given this paragraph: Scientific theories are explanations of some aspect of the natural world based on repeated observations. Q: Explanations of some aspect of the natural world based on repeated observations are termed what? Choices: - scientific insights - scientific thoughts - scientific guesses - scientific theories A:
**Answer**
scientific theories
Q: Answer the following question given this paragraph: Figure 8.11 The sun emits energy in the form of electromagnetic radiation. This radiation exists at different wavelengths, each of which has its own characteristic energy. All electromagnetic radiation, including visible light, is characterized by its wavelength. Q: What form of radiation is the energy emitted by the sun? Choices: - seismic - magnetic - thermal - electromagnetic A:
A: electromagnetic