Answer the following question given this paragraph: Lipids A lipid is one of a highly diverse group of compounds made up mostly of hydrocarbons. The few oxygen atoms they contain are often at the periphery of the molecule. Their nonpolar hydrocarbons make all lipids hydrophobic. In water, lipids do not form a true solution, but they may form an emulsion, which is the term for a mixture of solutions that do not mix well. Q: A lipid is one of a highly diverse group of compounds made up mostly of what? Choices: - nucleic acid - amines - proteins - hydrocarbons A:
hydrocarbons
Answer the following question given this paragraph: Pea plants reproduce sexually. The male gametes are released by tiny grains of pollen. The female gametes lie deep within the flowers. Fertilization occurs when pollen from one flower reaches the female gametes in the same or a different flower. This is called pollination . Mendel was able to control which plants pollinated each other. He transferred pollen by hand from flower to flower. Q: Fertilization occurs when what material from one flower reaches the female gametes in the same or a different flower? Choices: - ova - nitrogen - sperm - pollen A:
pollen
Q: Answer the following question given this paragraph: Bombarding a target of one element with high-energy nuclei or subatomic particles can create new elements. Electrostatic repulsions normally prevent a positively charged particle from colliding and reacting with a positively charged nucleus. If the positively charged particle is moving at a very high speed, however, its kinetic energy may be great enough to overcome the electrostatic repulsions, and it may collide with the target nucleus. Such collisions can result in a nuclear transmutation reaction. Q: What normally prevent a positively charged particle from colliding and reacting with a positively charged nucleus, but may be overcome by kinetic energy?. Choices: - kinetic repulsions - toxic repulsion - evaporation repulsions - electrostatic repulsions A:
A: electrostatic repulsions
Question: Answer the following question given this paragraph: All living things depend on their environment to supply them with what they need, including food, water, and shelter. Their environment consists of physical factorssuch as soil, air, and temperatureand also of other organisms. An organism is an individual living thing. Many living things interact with other organisms in their environment. In fact, they may need other organisms in order to survive. For example, living things that cannot make their own food must eat other organisms for food. Other interactions between living things include symbiosis and competition. Q: In an environment, symbiosis, competition, and relying on other organisms for food are examples of what? Choices: - collaboration - commensalism - adaptation - interaction A:
Answer: interaction
*Question*
Answer the following question given this paragraph: Figure 29.17 The tails of the Hale-Bopp comet point away from the Sun, evidence that light has momentum. Dust emanating from the body of the comet forms this tail. Particles of dust are pushed away from the Sun by light reflecting from them. The blue ionized gas tail is also produced by photons interacting with atoms in the comet material. (credit: Geoff Chester, U. Navy, via Wikimedia Commons). Q: The tails of the hale-bopp comet point away from the sun, evidence that light has what property of motion? Choices: - inertia - velocity - acceleration - momentum A:
**Answer**
momentum
*Question*
Answer the following question given this paragraph: The symbol represents an electron whose charge corresponds to and since it has no nucleons, . It must be carefully noted that the electron released during beta decay is NOT an orbital electron but an electron whose origin was in the nucleus. The process has one neutron becoming one proton and one electron and the electron being emitted as a beta particle. Since a neutron has been lost AND a proton has been gained, the mass number does not change. The atomic number, however, has increased one due to the gain of a proton. Therefore, as a result of beta decay, the daughter product will have the same mass number as the parent and an atomic number one greater than the parent. Q: The electron released during beta decay is not an orbital electron but an electron whose origin was where? Choices: - outside the nucleus - connected to the nucleus - orbiting the nucleus - in the nucleus A:
**Answer**
in the nucleus