Q: Q: What ancestors did caecillians evolve from? Read this paragraph and choose the correct option from the provided answers: Caecilians are most closely related to salamanders. As you can see from Figure below , they have a long, worm-like body without legs. Caecilians evolved from a tetrapod ancestor, but they lost their legs during the course of their evolution. Choices: - ornithopod - arthropod - hominid - tetrapod A:
A: tetrapod

Q: Q: What are membrane-bound organelles that can have secretory, excretory, and storage functions? Read this paragraph and choose the correct option from the provided answers: Vacuoles are membrane-bound organelles that can have secretory, excretory, and storage functions. Many organisms will use vacuoles as storage areas and some plant cells have very large vacuoles. Vesicles are much smaller than vacuoles and function in transporting materials both within and to the outside of the cell. Choices: - prokaryotes - alleles - nuclei - vacuoles A:
A: vacuoles

Q: Q: What controls the movements of hands and arms? Read this paragraph and choose the correct option from the provided answers: Scott Schram. The somatic nervous system controls the movements of hands and arms . CC BY 2.0. Choices: - autonomic nervous system - functional nervous system - voluntary nervous system - somatic nervous system A:
A: somatic nervous system

Q: Q: How the individuals in a population are spread throughout their habitat is referred to as what? Read this paragraph and choose the correct option from the provided answers: Population density just represents the average number of individuals per unit of area or volume. Often, individuals in a population are not spread out evenly. Instead, they may live in clumps or some other pattern (see Figure below ). The pattern may reflect characteristics of the species or its environment. Population distribution describes how the individuals are distributed, or spread throughout their habitat. Choices: - habitual distribution - population habitation - population spread - population distribution A:
A: population distribution