Answer the following question given this paragraph: To ensure that no more than one sperm fertilizes the egg, once the acrosomal reactions take place at one location of the egg membrane, the egg releases proteins in other locations to prevent other sperm from fusing with the egg. If this mechanism fails, multiple sperm can fuse with the egg, resulting in polyspermy. The resulting embryo is not genetically viable and dies within a few days. Q: What is the term for if multiple sperm fuse with an egg? Choices: - fraternization - in vitro fertilization - pollenation - polyspermy A:
polyspermy
Answer the following question given this paragraph: Phytoplankton are "plant-like" plankton. Since they make food by photosynthesis, they live in the photic zone. Most are algae. Q: Which type of plankton make food via photosynthesis? Choices: - dinoflagellates - common plankton - zooplankton - phytoplankton A:
phytoplankton
Q: Answer the following question given this paragraph: Echinoderms lack respiratory and excretory systems. Instead, the thin walls of their tube feet allow oxygen to diffuse in and wastes to diffuse out. Echinoderms also lack a centralized nervous system. They have an open circulatory system and lack a heart. On the other hand, echinoderms have a well-developed coelom and a complete digestive system. Echinoderms use pheromones to communicate with each other. They detect the chemicals with sensory cells on their body's surface. Some echinoderms also have simple eyes (ocelli) that can sense light. Like annelids, echinoderms have the ability to regenerate a missing body part. Q: What can echinoderms sense with their simple eyes? Choices: - colors - shapes - electricity - light A:
A: light
Question: Answer the following question given this paragraph: Amino acids are molecules of carbon, hydrogen, and oxygen. These molecules are called the building blocks of life because they create proteins. Proteins are complex organic molecules that make up cells. They are the most abundant class of biological molecules. Q: What are complex organic molecules that make up cells? Choices: - sugars - carbohydrates - acids - proteins A:
Answer: proteins
*Question*
Answer the following question given this paragraph: A: Energy is released when an atom gains an electron. Halogens release the most energy when they form ions. As a result, they are very reactive elements. Q: What happens to energy when an atom gains an electron? Choices: - it is folded - it is used - it increases - it is released A:
**Answer**
it is released
Q: Answer the following question given this paragraph: Producing light without a high temperature is called luminescence. Types of luminescence include fluorescence, electroluminescence, and bioluminescence. Q: Producing light without a high temperature is called? Choices: - plasma - fluorescence - effervescence - luminescence A:
A: luminescence