Q: Who invented dynamite in 1866? Read this paragraph and choose the correct option from the provided answers: Dynamite was invented by Alfred Nobel in 1866. Nitroglycerin, a very unstable explosive, was already known. Nobel mixed the nitroglycerin with silica to stabilize it and form a solid material. He made a fortune with this discovery and established the Nobel Foundation, which funds the Nobel Prizes every year. Choices: - Louis Pasteur - Madame Curie - Albert Einstein - alfred nobel A:
alfred nobel

(Question)
Q: Most molecular compounds that have a mass similar to water are in what state of matter at room temperature? Read this paragraph and choose the correct option from the provided answers: The hydrogen bonding that occurs in water leads to some unusual, but very important properties. Most molecular compounds that have a mass similar to water are gases at room temperature. Because of the strong hydrogen bonds, water molecules are able to stay condensed in the liquid state. The Figure below shows how the bent shape and two hydrogen atoms per molecule allows each water molecule to be able to hydrogen bond to two other molecules. Choices: - solid - liquid - vapor - gas A:
(Answer)
gas

Ques: Q: Although what biochemicals circulate throughout the body and come into contact with many different cell types, they only affect cells that possess the necessary receptors? Read this paragraph and choose the correct option from the provided answers: How Hormones Work Hormones cause changes in target cells by binding to specific cell-surface or intracellular hormone receptors, molecules embedded in the cell membrane or floating in the cytoplasm with a binding site that matches a binding site on the hormone molecule. In this way, even though hormones circulate throughout the body and come into contact with many different cell types, they only affect cells that possess the necessary receptors. Receptors for a specific hormone may be found on or in many different cells or may be limited to a small number of specialized cells. For example, thyroid hormones act on many different tissue types, stimulating metabolic activity throughout the body. Cells can have many receptors for the. Choices: - Cells - organs - enzymes - hormones A:
Ans: hormones

(Q).
Q: Within each sporangium, hundreds of what kind of spores develop and are dispersed through the air? Read this paragraph and choose the correct option from the provided answers: Choices: - diploid - polyploid - infertile - haploid A:
(A).
haploid

Ques:Q: What are the specialized cells within the brain called? Read this paragraph and choose the correct option from the provided answers: Figure 3.9 (a) A typical human brain weighs about 1.5 kg and occupies a volume of roughly 1.1 L. (b) Information is transmitted in brain tissue and throughout the central nervous system by specialized cells called neurons (micrograph shows cells at 1600 magnification). Specialized cells called neurons transmit information between different parts of the central nervous system by way of electrical and chemical signals. Chemical signaling occurs at the interface between different neurons. Choices: - ions - electrons - protons - neurons A:

Ans:neurons

Ques:Q: What is the liquid inside the central vacuole called? Read this paragraph and choose the correct option from the provided answers: The central vacuole contains large amounts of a liquid called cell sap, which differs in composition to the cell cytosol. Cell sap is a mixture of water, enzymes, ions, salts, and other substances. Cell sap may also contain toxic byproducts that have been removed from the cytosol. Toxins in the vacuole may help to protect some plants from being eaten. Choices: - cytoplasm - osmotic fluid - chloroplasm - cell sap A:

Ans:
cell sap