Answer the following question given this paragraph: The electrode at which reduction occurs is called the cathode . The cathode gradually increases in mass because of the production of copper metal. The concentration of copper(II) ions in the half-cell solution decreases. The cathode is the positive electrode. Q: What is the electrode at which reduction occurs called? Choices: - reducthode - anode - cathine - cathode A:
cathode
Answer the following question given this paragraph: The rate of evolution is influenced by how quickly the environment is changing. Long periods of gradual evolutionary change may be interrupted by short bursts of rapid change. Q: The rate of evolution is influenced by the rate of changes to what? Choices: - dna - migration - the earth - the environment A:
the environment
Q: Answer the following question given this paragraph: There are a number of different ways to measure the strength of a given crystal lattice. One way would be to measure the amount of energy needed to completely pull apart an ionic substance into isolated ions. This value, known as the lattice energy , cannot be measured directly, but it can be calculated based on measured energy changes for other more feasible processes. The lattice energy of an ionic solid provides us with one way to measure the relative strength of the ionic bonds in that compound. Table below shows the lattice energies for various ionic substances:. Q: Lattice energy cannot be measured directly. what is its calculation based on? Choices: - chemical reactions - change in temperature - microscopic inspection - measured energy changes A:
A: measured energy changes
Question: Answer the following question given this paragraph: In prokaryotes, a combination of activators and repressors determines whether a gene is transcribed. As you know, prokaryotic organisms are fairly simple organisms with much less DNA. Prokaryotic genes are arranged in operons , a region of DNA with a promoter, an operator , and one or more genes that encode proteins needed to perform a certain task. To maintain homeostasis (and survive), the organism must quickly adapt changing environmental conditions. The regulation of transcription plays a key role in this process. Q: In order to survive and maintain what state, an organism must quickly adapt to changing environmental conditions? Choices: - ketosis - acclimatization - regulation - homeostasis A:
Answer: homeostasis
*Question*
Answer the following question given this paragraph: Q: What does photosynthesis allow plants to generate? Choices: - enriched molecules - geometric molecules - clorophyll - organic molecules A:
**Answer**
organic molecules
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