Answer the following question given this paragraph: Q: What makes the realized niche of chthamalus much smaller than its fundamental niche? A:
OPTIONS:
- instantaneous competition
- asexual competition
- microscopic competition
- interspecific competition
interspecific competition

Answer the following question given this paragraph: Two natural products of mollusks used for decorations and jewelry are pearls and nacre. A pearl is the hard, round object produced within the mantle of a living shelled mollusk. Pearls are produced by many bivalves when a tiny particle of sand or grit is trapped between the mantle and the shell. It's as if the mollusk has a splinter. The mollusk forms a protective covering around the irritant. Most pearls used as jewelry are made by pearl oysters and freshwater mussels; most of the ones sold are cultured and not wild. Natural pearls have been highly valued as gemstones and objects of beauty for many centuries. Q: What is the term for the hard, round object produced within the mantle of a living shelled mollusk? A:
OPTIONS:
- ball
- root
- glass
- pearl

Answer: pearl

Question: Answer the following question given this paragraph: The voltage of a voltaic cell can be determined by the reduction potentials of the half reactions. Q: The voltage of a voltaic cell can be determined by the reduction potentials of what? A:
OPTIONS:
- full reactions
- thermal reactions
- old reactions
- half reactions
Answer: half reactions

input with options: Answer the following question given this paragraph: The hypothalamus is actually part of the brain (see Figure below ), but it also secretes hormones. Some of its hormones that "tell" the pituitary gland to either secrete or stop secreting its hormones. In this way, the hypothalamus provides a link between the nervous and endocrine systems. The hypothalamus also produces hormones that directly regulate body processes. These hormones travel to the pituitary gland, which stores them until they are needed. The hormones include antidiuretic hormone and oxytocin. Q: What organ is the hypothalamus a part of? A:
OPTIONS:
- Nervous system
- liver
- heart
- brain
output: brain

Q: Answer the following question given this paragraph: Echo sounders were used to search for enemy submarines during World War II. The depths they recorded allowed scientists to piece together bathymetric maps of the seafloor. Multi-beam sounders work on research vessels today. Q: What do waves deposit in relatively quiet areas along a shore? A:

OPTIONS:
- fish
- mud
- snow
- sand

A: sand

Answer the following question given this paragraph: The standard cell potential is negative, indicating a nonspontaneous reaction. The battery must be capable of delivering at least 1.10 V of direct current in order for the reaction to occur. Another difference between a voltaic cell and an electrolytic cell is the signs of the electrodes. In a voltaic cell, the anode is negative and the cathode is positive. In an electrolytic cell, the anode is positive because it is connected to the positive terminal of the battery. The cathode is therefore negative. Electrons still flow through the cell form the anode to the cathode. Q: What type of cell has negative anode is positive cathode? A:
OPTIONS:
- picric cell
- planetoid cell
- non-voltaic cell
- voltaic cell
voltaic cell