Answer the following question given this paragraph: The earliest plants are thought to have evolved in the ocean from a green alga ancestor. Plants were among the earliest organisms to leave the water and colonize land. The evolution of vascular tissues allowed plants to grow larger and thrive on land. The evolution of seeds and pollen allowed them to reproduce on land without moisture. Flowering plants evolved flowers with ovaries that formed fruits. They have been the most successful plants of all. Q: From where have the earliest ocean plants thought to have evolved? Choices: - green pepinia ancestor - simple coral ancestor - simple alga ancestor - green alga ancestor A:
green alga ancestor
(Question)
Answer the following question given this paragraph: Each human somatic cell (a body cell, or every cell other than a gamete) normally has two sets of chromosomes, one set inherited from each parent. These cells are said to have a diploid number of chromosomes. Each set contains 23 chromosomes, for a total of 46 chromosomes. Each chromosome differs in size, from about 250 million nucleotide pairs on the largest chromosome (chromosome #1) to less than 50 million nucleotide pairs on chromosome #22. Each chromosome contains a specific set of genes, as well as regulatory elements and other nucleotide sequences, making each chromosome essential to survival. Q: How many sets of chromosomes does each somatic cell have? Choices: - one - four - six - two A:
(Answer)
two
Ques: Answer the following question given this paragraph: Unsaturated hydrocarbons called aromatic hydrocarbons are cyclic hydrocarbons that have double bonds. These compounds have six carbon atoms in a ring with alternating single and double bonds. The smallest aromatic hydrocarbon is benzene, which has just one ring. Its structural formula is shown in the Figure below . Larger aromatic hydrocarbons consist of two or more rings, which are joined together by bonds between their carbon atoms. The name of aromatic hydrocarbons comes from their strong aroma, or scent. That's why they are used in air fresheners and mothballs. You can learn more about these interesting hydrocarbons at this URL:. Q: What is the smallest aromatic hydrocarbon? Choices: - furan - sulfide - phosphate - benzene A:
Ans: benzene
(Q).
Answer the following question given this paragraph: Q: What do you call the hard case that surrounds the soft parts of some animals? Choices: - muscles - shell - membrane - exoskeleton A:
(A).
exoskeleton
Ques:Answer the following question given this paragraph: Clouds are needed for precipitation. Precipitation is water that falls from the sky. This may fall as liquid water, mostly as rain . It may fall also as frozen water, such as snow. Q: What is the water that falls from the sky called? Choices: - evaporation - condensation - moisture - precipitation A:

Ans:precipitation
Ques:Answer the following question given this paragraph: Not getting enough minerals can cause health problems. For example, too little calcium may cause osteoporosis. This is a disease in which bones become soft and break easily. Getting too much of some minerals can also cause health problems. Many people get too much sodium. Sodium is added to most packaged foods. People often add more sodium to their food by using table salt. Too much sodium causes high blood pressure in some people. Q: What disease can too little calcium cause? Choices: - anemia - arthritis - psoriasis - osteoporosis A:

Ans:
osteoporosis