Q: On the origin of species is a book by darwin that spells out what theory? Read this paragraph and choose the correct option from the provided answers: Wallace's paper on evolution confirmed Darwin's ideas. It also pushed him to publish his book, On the Origin of Species. The book clearly spells out his theory. It also provides evidence and logic to support it. Choices: - theory of reproduction - theory of the universe - theory of the computation - theory of evolution A:
theory of evolution

(Question)
Q: What are two nonliving things that all living things need for survival? Read this paragraph and choose the correct option from the provided answers: Choices: - sunlight - calcium - methane - water and air A:
(Answer)
water and air

Ques: Q: Newton realized that the nature of gravity on earth that pulls an apple to the ground could explain the motion of these? Read this paragraph and choose the correct option from the provided answers: As has been noted in numerous Things Great and Small vignettes, this is not the first time the large has been explained by the small and vice versa. Newton realized that the nature of gravity on Earth that pulls an apple to the ground could explain the motion of the moon and planets so much farther away. Minute atoms and molecules explain the chemistry of substances on a much larger scale. Decays of tiny nuclei explain the hot interior of the Earth. Fusion of nuclei likewise explains the energy of stars. Today, the patterns in particle physics seem to be explaining the evolution and character of the universe. And the nature of the universe has implications for unexplored regions of particle physics. Cosmology is the study of the character and evolution of the universe. What are the major characteristics of the universe as we know them today? First, there are approximately 10 11 galaxies in the observable part of the universe. An average galaxy contains more than 10 11 stars, with our Milky Way galaxy being larger than average, both in its number of stars and its dimensions. Ours is a spiral-shaped galaxy with a diameter of about 100,000 light years and a thickness of about 2000 light years in the arms with a central bulge about 10,000 light years across. The Sun lies about 30,000 light years from the center near the galactic plane. There are significant clouds of gas, and there is a halo of less-dense regions of stars surrounding the main body. (See Figure 34.3. ) Evidence strongly suggests the existence of a large amount of additional matter in galaxies that does not produce lightthe mysterious dark matter we shall later discuss. Choices: - seasons - atoms and quarks - molecules - moon and planets A:
Ans: moon and planets

(Q).
Q: What is the effect on pressure when the area of applied force is very concentrated? Read this paragraph and choose the correct option from the provided answers: Pressure shows how concentrated the force is on a given area. The smaller the area to which force is applied, the greater the pressure is. Think about pressing a pushpin, like the one in Figure below , into a bulletin board. You apply force with your thumb to the broad head of the pushpin. However, the force that the pushpin applies to the bulletin board acts only over the tiny point of the pin. This is a much smaller area, so the pressure the point applies to the bulletin board is much greater than the pressure you apply with you thumb. As a result, the pin penetrates the bulletin board with ease. Choices: - direction increases - pressure disperses - pressure reduces - pressure increases A:
(A).
pressure increases

Ques:Q: What type of energy travels through matter in wave form? Read this paragraph and choose the correct option from the provided answers: Sound is a form of energy that travels in waves through matter. The ability to sense sound energy and perceive sound is called hearing . The organ that we use to sense sound energy is the ear. Almost all the structures in the ear are needed for this purpose. Together, they gather sound waves, amplify the waves, and change their kinetic energy to electrical signals. The electrical signals travel to the brain, which interprets them as the sounds we hear. Choices: - vibrational - magnetic - light - sound A:

Ans:sound

Ques: Q: The thin scale-like or flat shape of what cells fits their primary function, to provide a smooth and protective surface? Read this paragraph and choose the correct option from the provided answers: Simple Epithelium The shape of the cells in the single cell layer of simple epithelium reflects the functioning of those cells. The cells in simple squamous epithelium have the appearance of thin scales. Squamous cell nuclei tend to be flat, horizontal, and elliptical, mirroring the form of the cell. The endothelium is the epithelial tissue that lines vessels of the lymphatic and cardiovascular system, and it is made up of a single layer of squamous cells. Simple squamous epithelium, because of the thinness of the cell, is present where rapid passage of chemical compounds is observed. The alveoli of lungs where gases diffuse, segments of kidney tubules, and the lining of capillaries are also made of simple squamous epithelial tissue. The mesothelium is a simple squamous epithelium that forms the surface layer of the serous membrane that lines body cavities and internal organs. Its primary function is to provide a smooth and protective surface. Mesothelial cells are squamous epithelial cells that secrete a fluid that lubricates the mesothelium. In simple cuboidal epithelium, the nucleus of the box-like cells appears round and is generally located near the center of the cell. These epithelia are active in the secretion and absorptions of molecules. Simple cuboidal epithelia are observed in the lining of the kidney tubules and in the ducts of glands. Choices: - technique epithelium - kind epithelium - basic epithelium - simple epithelium A:
Ans:
simple epithelium