Q: What determines sex in animals? Read this paragraph and choose the correct option from the provided answers: Sex chromosomes determine sex in animals and many plants. Other chromosomes are called autosomes. Sex-linked traits are controlled by genes on sex chromosomes. They may be inherited differently than autosomal traits. Choices: - cell structure - ribosomes - cell density - sex chromosomes A:
sex chromosomes

Q: Which nerve carries electrical signals from the rods and cones to the brain? Read this paragraph and choose the correct option from the provided answers: The optic nerve carries electrical signals from the rods and cones to the brain. Choices: - auditory - neurotransmitter - axon - optic A:
optic

Q: What is the length of the route between two points? Read this paragraph and choose the correct option from the provided answers: Distance is the length of the route between two points. The distance of a race, for example, is the length of the track between the starting and finishing lines. In a 100-meter sprint, that distance is 100 meters. Choices: - speed - direction - velocity - distance A:
distance

Q: The body of the simplest sponges takes the shape of a cylinder with a large central cavity, called? Read this paragraph and choose the correct option from the provided answers: The body of the simplest sponges takes the shape of a cylinder with a large central cavity, the spongocoel. Water enters the spongocoel from numerous pores in the body wall. Water flows out through a large opening called the osculum (Figure 15.9). However, sponges exhibit a diversity of body forms, which vary in the size and branching of the spongocoel, the number of osculi, and where the cells that filter food from the water are located. Sponges consist of an outer layer of flattened cells and an inner layer of cells called choanocytes separated by a jellylike substance called mesohyl. The mesohyl contains embedded amoeboid cells that secrete tiny needles called spicules or protein fibers that help give the sponge its structural strength. The cell body of the choanocyte is embedded in mesohyl but protruding into the spongocoel is a mesh-like collar surrounding a single flagellum. The beating of flagella from all choanocytes moves water through the sponge. Food particles are trapped in mucus produced by the sieve-like collar of the choanocytes and are ingested by phagocytosis. This process is called intracellular digestion. Amoebocytes take up nutrients repackaged in food vacuoles of the choanocytes and deliver them to other cells within the sponge. Choices: - spicule - vacuole - spirogyra - spongocoel A:
spongocoel