Answer the following question given this paragraph: Q: What do hydrophilic substances have an affinity for? Choices: - air - soil - heat - water A:
water
(Question)
Answer the following question given this paragraph: With fossil fuels becoming more expensive and less available, scientists are looking for other energy sources. Hydrogen has long been considered an ideal source, since it does not pollute when it burns. The problem has been finding ways to generate hydrogen economically. One new approach that is being studied is photoelectrolysis the generation of electricity using photovoltaic cells to split water molecules. This technique is still in the research stage, but appears to be a very promising source of power in the future. Q: What is the generation of electricity using photovoltaic cells to split water molecules called? Choices: - hybrid electricity - aqua-electricity - photovoltaic cells - photoelectrolysis A:
(Answer)
photoelectrolysis
Ques: Answer the following question given this paragraph: Nucleic acids are one of four classes of biochemical compounds. (The other three classes are carbohydrates, proteins, and lipids. ) Nucleic acids include RNA (ribonucleic acid) as well as DNA (deoxyribonucleic acid). Both types of nucleic acids contain the elements carbon, hydrogen, oxygen, nitrogen, and phosphorus. Q: Rna and dna are types of what biochemical compounds containing the elements carbon, hydrogen, oxygen, nitrogen, and phosphorus? Choices: - hormones - nitrous acids - amino acids - nucleic acids A:
Ans: nucleic acids
(Q).
Answer the following question given this paragraph: gametes swim with the aid of their flagella to the female gametangium (the archegonium), and fertilization ensues. The zygote grows into a small sporophyte still attached to the parent gametophyte. It will give rise, by meiosis, to the next generation of spores. Liverwort plants can also reproduce asexually, by the breaking of branches or the spreading of leaf fragments called gemmae. In this latter type of reproduction, the gemmaesmall, intact, complete pieces of plant that are produced in a cup on the surface of the thallus (shown in Figure 25.11)are splashed out of the cup by raindrops. The gemmae then land nearby and develop into gametophytes. Q: Gametes swim with the aid of what structure to the female gametangium, and fertilization ensues? Choices: - oocyte - acrosome - nucleus - flagella A:
(A).
flagella
Ques:Answer the following question given this paragraph: Blood from the body enters the right atrium of the heart. The right atrium pumps the blood to the right ventricle, which pumps it to the lungs. Q: Which area of the human heart pumps the blood to the right ventricle? Choices: - left atrium - true atrium - left ventricle - right atrium A:

Ans:right atrium
Question: Answer the following question given this paragraph: Children as young as 2 years of age can be vaccinated against viral meningitis. Q: What preventive measure can protect even young children against diseases such as viral meningitis? Choices: - nutrition - surgical intervention - malnutrition - vaccination A:
Answer:
vaccination