Q: The majoirty of modern gymnosperms belong to what group, which includes pine trees? Read this paragraph and choose the correct option from the provided answers: There are only about 1,000 living species of gymnosperms, whereas there are hundreds of thousands of living species of angiosperms. Living gymnosperms are typically classified in the divisions described in the Table below . Most modern gymnosperms are trees with woody trunks. The majority are conifers such as pine trees. Choices: - stems - Pinophytes - clusters - conifers A:
conifers

(Question)
Q: Both energy and heat can be expressed in units of what? Read this paragraph and choose the correct option from the provided answers: Energy and heat are expressed in units of joules. Choices: - amperes - velocities - ohms - joules A:
(Answer)
joules

Ques: Q: How long does it take for earth to rotate on it's axis one time? Read this paragraph and choose the correct option from the provided answers: Earth rotates on its axis every 24 hours. Choices: - 6 hours - 12 hours - 26 hours - 24 hours A:
Ans: 24 hours

(Q).
Q: A mycorrhiza refers to what kind of relationship between a fungus and the roots of a plant? Read this paragraph and choose the correct option from the provided answers: A mycorrhiza (Greek for "fungus roots") is a symbiotic association between a fungus and the roots of a plant. In a mycorrhizal association, the fungus may colonize the roots of a host plant by either growing directly into the root cells, or by growing around the root cells. This association provides the fungus with relatively constant and direct access to glucose, which the plant produces by photosynthesis. The mycelia of the fungi increase the surface area of the plant's root system. The larger surface area improves water and mineral nutrient absorption from the soil. Choices: - predator-prey - semantic - familial - symbiotic A:
(A).
symbiotic

Ques:Q: What is the term for the force exerted by circulating blood on the walls of blood vessels? Read this paragraph and choose the correct option from the provided answers: The force exerted by circulating blood on the walls of blood vessels is called blood pressure . Blood pressure is highest in arteries and lowest in veins. When you have your blood pressure checked, it is the blood pressure in arteries that is measured. High blood pressure, or hypertension , is a serious health risk but can often be controlled with lifestyle changes or medication. You can learn more about hypertension by watching the animation at this link: http://www. healthcentral. com/high-blood-pressure/introduction-47-115. html . Choices: - circulation pressure - heart pressure - blood energy - blood pressure A:

Ans:blood pressure

Ques:Q: What is electrons in the highest occupied principal energy level of an atom called? Read this paragraph and choose the correct option from the provided answers: In the study of chemical reactivity, we will find that the electrons in the outermost principal energy level are very important and so they are given a special name. Valence electrons are the electrons in the highest occupied principal energy level of an atom. In the second period elements listed above, the two electrons in the 1 s sublevel are called inner-shell electrons and are not involved directly in the element's reactivity or in the formation of compounds. Lithium has a single electron in the second principal energy level and so we say that lithium has one valence electron. Beryllium has two valence electrons. How many valence electrons does boron have? You must recognize that the second principal energy level consists of both the 2 s and the 2 p sublevels and so the answer is three. In fact, the number of valence electrons goes up by one for each step across a period until the last element is reached. Neon, with its configuration ending in s 2 p 6 , has eight valence electrons. Choices: - non-valence electrons - shell electrons - gradient electrons - valence electrons A:

Ans:
valence electrons