Ques: Q: What type of species can alternate between medusa and polyp forms? Read this paragraph and choose the correct option from the provided answers: As you can see in Figure below , both body plans have radial symmetry. Some cnidarian species alternate between medusa and polyp forms. Other species exist in just one form or the other. Choices: - mollusks - crocodilian - chordata - cnidarian A:
Ans: cnidarian

Ques: Q: What vesicles store neurotransmitters? Read this paragraph and choose the correct option from the provided answers: Secretory Vesicles contain materials that are to be excreted from the cell, such as wastes or hormones . Secretory vesicles include synaptic vesicles and vesicles in endocrine tissues. Synaptic vesicles store neurotransmitters. They are located at presynaptic terminals in neurons. When a signal reaches the end of an axon, the synaptic vesicles fuse with the cell membrane and release the neurotransmitter. The neurotransmitter crosses the synaptic junction, and binds to a receptor on the next cell. Some cells also produce molecules, such as hormones produced by endocrine tissues, needed by other cells. These molecules are stored in secretory vesicles and released when needed. Secretory vesicles also hold enzymes needed to make extracellular structures, such as the extracellular matrix of animal cells. Choices: - hydrophobic - dendritic - Golgi apparatus - synaptic A:
Ans: synaptic

Ques: Q: What is the force of attraction between two masses? Read this paragraph and choose the correct option from the provided answers: Gravity is traditionally defined as a force of attraction between two masses. Weight measures the force of gravity and is expressed in newtons (N). Choices: - electricity - inertia - momentum - gravity A:
Ans: gravity

Ques: Q: What is the term for a random change in allele frequencies that occurs in a small population? Read this paragraph and choose the correct option from the provided answers: Genetic drift is a random change in allele frequencies that occurs in a small population. When a small number of parents produce just a few offspring, allele frequencies in the offspring may differ, by chance, from allele frequencies in the parents. Choices: - evolution - speciation - mutation - genetic drift A:
Ans:
genetic drift