Answer the following question given this paragraph: in color. Golden algae are found in both freshwater and marine environments, where they form a major part of the plankton community. The brown algae are primarily marine, multicellular organisms that are known colloquially as seaweeds. Giant kelps are a type of brown algae. Some brown algae have evolved specialized tissues that resemble terrestrial plants, with root-like holdfasts, stem-like stipes, and leaf-like blades that are capable of photosynthesis. The stipes of giant kelps are enormous, extending in some cases for 60 meters. A variety of algal life cycles exists, but the most complex is alternation of generations, in which both haploid and diploid stages involve multicellularity. Compare this life cycle to that of humans, for instance. Haploid gametes produced by meiosis (sperm and egg) combine in fertilization to generate a diploid zygote that undergoes many rounds of mitosis to produce a multicellular embryo and then a fetus. However, the individual sperm and egg themselves never become multicellular beings. Terrestrial plants also have evolved alternation of generations. In the brown algae genus Laminaria, haploid spores develop into multicellular gametophytes, which produce haploid gametes that combine to produce diploid organisms that then become multicellular organisms with a different structure from the haploid form (Figure 23.19). Certain other organisms perform alternation of generations in which both the haploid and diploid forms look the same. Q: Some marine algae have evolved special structures capable of what plant process? Choices: - pollination - respiration - seed germination - photosynthesis A:
photosynthesis
(Question)
Answer the following question given this paragraph: Gases that absorb heat in the atmosphere are called greenhouse gases . They include carbon dioxide and water vapor. Human actions have increased the levels of greenhouse gases in the atmosphere. This is shown in Figure below . The added gases have caused a greater greenhouse effect. How do you think this affects Earth's temperature?. Q: What is the term for gases that absorb heat in the atmosphere? Choices: - ionic gases - thermal gases - sulfuric gases - greenhouse gases A:
(Answer)
greenhouse gases
Ques: Answer the following question given this paragraph: Reduce, reuse, and recycle. There are steps that you personally can take to conserve our natural resources and reduce waste. The waste that an individual creates is small in proportion to all the waste produced by society. Yet all small contributions, when added up, make a difference. Q: What three rs represent the steps that you personally can take to conserve our natural resources and minimize waste? Choices: - rinse, reuse, recycle - remove, reduce, reuse - reduce, reuse, re-educate - reduce, reuse, recycle A:
Ans: reduce, reuse, recycle
(Q).
Answer the following question given this paragraph: Ice, water, and steam appear quite differently to the eye. If you were to look at these three states of matter on the molecular level, you would see that the arrangement of molecules is very different here as well. However, solids and liquids have definite volumes, unlike gases which tend to take on the shape of their container. In this lesson, you will learn about the unique behavior of gas particles on a molecular level and the basis for kinetic molecular theory. Q: Which two states of matter have definite volumes? Choices: - bacteria and liquids - GAS AND LIQUIDS - contrasts and liquids - solids and liquids A:
(A).
solids and liquids
Ques:Answer the following question given this paragraph: Most substances have three distinct phases: gas, liquid, and solid. Phase changes among the various phases of matter depend on temperature and pressure. The existence of the three phases with respect to pressure and temperature can be described in a phase diagram. Two phases coexist (i. , they are in thermal equilibrium) at a set of pressures and temperatures. These are described as a line on a phase diagram. The three phases coexist at a single pressure and temperature. This is known as the triple point and is described by a single point on a phase diagram. A gas at a temperature below its boiling point is called a vapor. Vapor pressure is the pressure at which a gas coexists with its solid or liquid phase. Partial pressure is the pressure a gas would create if it existed alone. Dalton's law states that the total pressure is the sum of the partial pressures of all of the gases present. Q: Temperature and pressure affect changes in phases or states of what? Choices: - homeostasis - decay - energy - matter A:

Ans:matter
Question: Answer the following question given this paragraph: Amphibians generally lay large number of eggs. Often, many adults lay eggs in the same place at the same time. This helps to ensure that eggs will be fertilized and at least some of the embryos will survive. Once eggs have been laid, most amphibians are done with their parenting. Q: When does most amphibians' parenting end? Choices: - after adolescence - once offspring reach adulthood - never - once eggs have been laid A:
Answer:
once eggs have been laid