Q: The development of a head region is called what? Read this paragraph and choose the correct option from the provided answers: Most flatworms have a distinct head region that includes nerve cells and sensory organs, such as eyespots. The development of a head region, called cephalization , evolved at the same time as bilateral symmetry in animals. This process does not occur in cnidarians, which evolved prior to flatworms and have radial symmetry. Choices: - trichina - spore - cocklebur - cephalization A:
cephalization

Q: Where are the taste buds located in humans? Read this paragraph and choose the correct option from the provided answers: The sense of taste is controlled by sensory neurons on the tongue. They are grouped in bundles called taste buds. You can see taste buds on the tongue in Figure below . Taste neurons sense chemicals in food. They can detect five different tastes: sweet, salty, sour, bitter, and umami, which is a meaty taste. When taste neurons sense chemicals, they send messages to the brain about them. The brain then decides what you are tasting. Choices: - lips - mouth - teeth - tongue A:
tongue

Q: Q: How many valence electrons does nitrogen have? Read this paragraph and choose the correct option from the provided answers: Nitrogen is a diatomic element with five valence electrons. Create a model of a molecule of nitrogen. Choices: - 4 - 10 - 3 - 5 A:
A: 5

Question: Q: Like earth, the moon has a distinct crust, mantle, and what else? Read this paragraph and choose the correct option from the provided answers: Like Earth, the Moon has a distinct crust, mantle, and core. The crust is composed of igneous rock. This rock is rich in the elements oxygen, silicon, magnesium, and aluminum. On the near side, the Moon's crust is about 60 kilometers thick. On the far side, the crust is about 100 kilometers thick. The mantle is made of rock like Earth's mantle. The Moon has a small metallic core, perhaps 600 to 800 kilometers in diameter. The composition of the core is probably mostly iron with some sulfur and nickel. We learned this both from the rock samples gathered by astronauts and from spacecraft sent to the Moon. Choices: - temperature - polarity - atmosphere - core A:
Answer: core

*Question*
Q: An axe head and a doorstop are types of what simple machine? Read this paragraph and choose the correct option from the provided answers: The axe head and the doorstop are both examples of a wedge, a type of simple machine. Choices: - pulley - blade - lever - wedge A:
**Answer**
wedge

(Q).
Q: Which body part is unsuitable for animals living on land? Read this paragraph and choose the correct option from the provided answers: Choices: - lungs - feet - hands - gills A:
(A).
gills