Which statement about deserts and the organisms that live there is true? a) many desert animals are nocturnal b) growth and reproduction occur year-round in deserts c) desert plants typically produce very few seeds d) air temperatures in cold deserts, such as those west of the Rocky Mountains, may never fall below 30° Which of the following statements about deserts and the organisms that live there is true? a) Desert plants typically produce very few seeds. b) Air temperatures in cold deserts, such as those west of the Rocky Mountains, may never fall below 30 degrees C. c) Many desert animals are nocturnal. d) Growth and reproduction occur year-round in deserts Which of the following statements about deserts and the organisms that live there is true? Many animals are nocturnal. Usually a river _____ at its source compared to farther downstream. Has less phytoplankton. In many dense forests. Plants living near ground level are in competition for____ Which of the following statements about deserts and the organisms that live there is true? Air temperatures in cold deserts, such as those west of the Rocky Mountains, may never fall below 30 degrees C. The major reason for tropical deforestation is Passage - 1 The animals and plants of deserts live on the desert soil and breathe air from surroundings. In deserts only little water is available. In deserts days are quite hot and nights are quite cold. The desert animals that dig holes and burrows in the sand and live with in ____
5. In any ecosystem—including the entire planet Earth—there is a finite, or limited, amount of energy, matter, and resources available to the organisms that live there. These finite quantities determine the ecosystem's . carrying capacity. Since organisms usually produce more offspring than this limited amount of energy can support, there is
Get answer: How many statements,s are true ? A. Temperature is the most relevant ecologically environmental factor. It ranges from subzero levels in polar areas and high altitudes to gt50^@C in tropical deserts in summer. B. A few organisms can tolerate and thrive in a wide range of temperature they are called eurythermal. C 12. Which of the following statements is FALSE? a. Panspermia is the hypothesis that life has an extraterrestrial origin. b. Gene duplication can lead to novel function. c. Natural selection is the same as evolution. d. The adaptive value of a mutation changes with the ecological circumstances. 13. Which of the following statements is NOT true? a 41. True of False: Species are becoming extinct today at ever accelerating rates. 42. There were once many thriving ecosystems in the United States, from the coastal regions to the temperate forests to the prairies of the temperate grasslands. This is an example of _____ diversity. a. Chemical. b. Genetic. c. Human derived. d. Ecosystem. 43
Which of the following statements are true of protozoans? Check All That Apply Most are beneficial but a few may be pathogenic ces Protozoans are prokaryotic Protozoans can be used as bioindicators of water quality Protozoans use several different forms of motility Protozoans are predators of smaller organisms The Living Organisms and Their Surroundings Class 6 MCQs Questions with Answers. Choose the correct option in the following questions: Question 1. Which one of the following statements is correct? (a) Several kinds of plants and animals may share the same habitat. (b) All the animals and plants in a habitat are adopted to it
20. A new organism has been discovered. This organism has a bilaterally symmetric unsegmented body. It's capable of moving on its own with a muscular appendage and is encased in a large shell that seems to be attached to its body. Based on this evidence, which phylum would this new animal likely be classified into? A. Arthropoda B. Mollusca C. Echinodermata D. Nematod 4. Read each of the following statements. Write a paragraph about adaptation with reference to each statement. Question a. There is extreme heat in deserts. Answer: Plant's stem is fleshy, leaves get modified into thorns to reduce loss of water. Steam perform photosynthesis in the absence of leaves Chapter 3: Basic Needs of Living Things. Post-Lecture Quiz. This activity contains 25 questions. The First Law of Thermodynamics states that _______. energy is degraded when it changes form. energy is neither created nor destroyed ANSWER: All of the above statements are true, none is false. It describes how organisms affect the environment-It describes how the environment affects organisms-It is a scientific study. 3. Suppose you were examining whether a synthetic chemical reduced the growth rate of mice Which of the following statements is true about fossilization? a) It is a common occurrence. b) It is more common for animals from mountains and forests than for those from deserts and oceans. c) Small animals with light weight, thin bones are more likely to become fossils than are large animals with heavy, dense bones. d
1.Explain the process of succession. 2.Describe how changes in an ecosystem can affect organisms that live there. 3.Describe the amount of time needed for ecosystem recovery If anyone would help me that would be great, websites, answers, anything at all a. method of using desert land for agriculture b. the process of turning arable land into deserts c. drying up of stream beds and lakes d. the expansion of current deserts land areas Weegy: Desertification is: the process of turning arable land into deserts. Score 1 User: Energy flow in an ecosystem is best represented by _____. a True 6. An organism's niche includes its habitat. True Multiple choice A 'habitat' is: A. A place to buy furniture and furnishings B. The same as an ecosystem C. A particular area inhabited by plants and animals D. The number of different organisms living in a specific area How an organism is suited to live in a particular place is called What are the principal categories of organisms? What is a food web? A biomass pyramid is important because it illustrates _____. Which of the following statements is true? The Painted Desert in the Southwestern United States and the Sahara Desert in Africa belong to the same _____
. All of the following statements are related to the ideas of natural selection except which one? a. There is heritable variation among individuals. b. Production of offspring is unrelated to the availability of essential resources. c. Only a fraction of offspring survive because of competition for limited resources. d Score: Which of the following statements is true? Organisms that evolve in the same environment often have homologous structures. Since there are gaps in the fossil record, it cannot be used as evidence for evolution. Human morphology and embryo development is very different from all other organisms. The more similar the embryonic development of two species, the more closely they are related Q. A collection of organisms that belong to different populations but all live in the same area and interact with one another. Q. A place where an organism lives. Q. A collection of organisms that make up a community as well as all of the nonliving aspects of the environment. Q. Nonliving factor that affects an ecosystem... Q. What are the.
View Answer. Describe each type of ecological relationship found in each biome. Marine Biome 1) Predation (predator and prey) 2) Mutualism 3) Competition 4) Parasitism 5) Commensalism. View Answer Play this game to review Ecology. A team of ecologists observed feeding patterns of several populations in the desert. The energy pyramid shown below depicts the feeding patterns the ecologist observed. Which of the following best explains the difference in the amount of available energy in the trophic levels of the desert ecosystem
There are two common varieties of these mice a light-colored variety and a dark-colored variety. There are also two major colors of substrate, or surface materials, that make up the desert floor. Most of the desert is covered in light-colored sand and rock. However, there are also patches of dark volcanic rocks that formed from cooling lava flows You passed this Milestone 22 questions were answered correctly. 1 Which of the following statements about photosynthesis and carbon cycling is true? Climate is involved in carbon recycling. Cellular respiration is the release of sugars as energy. All carbon on Earth is contained in living organisms. Carbon cycling occurs in both long-term and short-term cycles . SURVEY. 30 seconds. Q. Many plants are able to regulate the amount of water they hold by opening and closing tiny pores on the surface of their leaves. The image below shows one of these pores, called a stoma, magnified many times. The stoma opens to allow water to evaporate from the plant and closes to conserve it 14 The following statements are about the structure of DNA. Which of the following statement(s) is/are true? Statement 1: Purine bases pair with pyrimidine bases. Statement 2: Phosphodiester bonds link adjacent nucleotides. Statement 3: There are always equal amounts of adenine and guanine. A 1, 2 and 3 B Only 1 and 2 C Only 2 and 3 D Only Organisms and the surroundings where they live. Question 1. Visit a pond and make a list of animals found inside the water. Answer: The animals like frogs, fish, molluscs and certain insects are found inside the water. Protozoans like amoeba and turtles, water spiders, water skaters, dragon flies, king fishers, ducks and many other types of.
There are no nucleus and mitochondria in the red blood cells (RBCs). For this reason, RBCs are able to carry more hemoglobin molecules and deliver oxy gen to the right place. Look at the following statements about RBCs: 1. RBCs cannot produce any ATP due to the lack of mitochondria 2. RBCs produce 2 molecules of ATP from 1 molecule of. Every year a lake becomes more polluted, and 5% fewer organisms can live in it. If in 2010 there are one million organisms, write an equation relating N, the number of organisms (in millions), to time t, in years since 2010. science. identify the process that represents how organisms grow and replace old or damaged cells Some animals hibernate to. (a) Escape cold weather. (b) Escape hot weather. (c) Preventing loss of water from body. (d) Escaping from enemies. (a) Escape cold weather. 6. Which part of a camel will shrink in size when there is no food for a long time and retain its size when food is available? (a) Rough tongue . It depends on both inheritance and variation b. It explains how environments affect which organisms live and reproduce. c. It ensures that only the biggest and strongest organisms survive d. It results in adaptations that improve an organism's chances of surviva The body structure of a camel helps it to survive in desert conditions. Camel is adapted to live in a desert because of its following special features: (1) The camel has long legs which help to keep its body away from the hot sand in the desert. (2) A camel can drink large amount of water (when it is available)and store it in the body
Which of the following statements is true? All the populations in an ecosystem form the community. A habitat represents all the biotic factors in an ecosystem. The amount of nutrients in soil is an example of a biotic factor. Only one population can live in a habitat at a time Which of the following statements about insect control by microorganisms is true? A) The insects develop resistance to the microorganisms. B) The microorganisms are permanent in the environment. C) This technique is just as dangerous as the use of chemical pesticides. D) The microorganisms may cause disease in other animals Available since the 1950s, live attenuated vaccines (LAV) Live attenuated vaccine (LAV)A vaccine prepared from living micro-organisms (viruses, bacteria currently available) that have been weakened under laboratory conditions. LAV vaccines will replicate in a vaccinated individual and produce an immune response but usually cause mild or no disease. are derived from disease-causing pathogens. Geologists have noticed that there is a quasi-regular cycle in which supercontinents form and break up every 300 to 400 million years, but exactly why is a mystery, Murphy said
20. The organisms which feed on dead organisms and excreta of living organisms are known (a) Decomposers (b) Consumers (c) Producers (d) Carnivores. 21. A trophic level refers to: (a) Area in the tropics (b) An organism's portion in a food chain (c) An organism's position in an ecosystem (d) An organism's position in a biome. 22 Passage - 1 The bodies of living organisms are made of tiny units called cells. Cells can be seen only under microscope. Some organisms are made of only one cell. The cell is enclosed by a thin boundry, called the cell membrane. In bigger bodies there are a large number of cells, whereas in some organisms there is only one cell. The cell can be. Deserts cover about one fifth of the Earth's surface and occur where rainfall is less than 50 cm/year. Although most deserts, such as the Sahara of North Africa and the deserts of the southwestern U.S., Mexico, and Australia, occur at low latitudes, another kind of desert, cold deserts, occur in the basin and range area of Utah and Nevada and in parts of western Asia Statement four is the incorrect statement—Organisms in a changing environment must adapt to acquire necessary traits and survive. This statement seems a great deal like Jean Baptiste Lamarck's. In addition, these organisms are normally polyextremophiles, being adapted to live in habitats where various physicochemical parameters reach extreme values. For example, many hot springs are acid or alkaline at the same time, and usually rich in metal content; the deep ocean is generally cold, oligotrophic (very low nutrient content), and.
Use the following options to answer the following questions. For each description of reproductive isolation, select the option that best describes it. Options may be used once, more than once, or not at all DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) In desert plants leaves are modified into spines to tide over harsh desert conditions. (ii) In regions of heavy snowfall trees have leaves modified into needle shape 93. The law of conservation of energy is universal. Energy cannot be created nor destroyed. There is less energy available in the top of the energy pyramid than there is in the bottom because organisms all along the energy pyramid are using the energy, and some of the . energy is lost between each trophic level as hea Dip the leaf in boiling water for a few minutes. After this, immerse it in a beaker containing alcohol. Carefully place the above beaker in a water-bath and heat till the alcohol begins to boil. Now dip the leaf in a dilute solution of iodine for a few minutes. Take out the leaf and rinse off the iodine solution
Different animals live in the different types of deserts. Animals that live in the desert have adaptations to live with the lack of water, the extreme temperatures, and the shortage of food. To avoid daytime heat, many desert animals are nocturnal; they burrow beneath the surface or hide in the shade during the day, emerging at night to eat For example, forests and deserts, whereas the aquatic habitats consist of animals and plants that are living in water, for example, rivers, lakes, etc. The Living Organisms Characteristics and Habitats Question Answers. 1. What are the Different Characteristics of Living Organisms? The different characteristics of living organisms are as. Commensalism is a type of relationship between two living organisms in which one organism benefits from the other without harming it. A commensal species benefits from another species by obtaining locomotion, shelter, food, or support from the host species, which (for the most part) neither benefits nor is harmed. Commensalism ranges from brief interactions between species to life-long symbiosis The place where organisms live and which provide food and safety for them is 'called habitat. 3. Name a few habitats. Ans: Forests, grassland, mountains, ponds and oceans etc. 4. Name two organisms that live in deserts. Ans: Cactus, camel, desert rat. 5. Name a few plants that live in ponds. Ans: Hydrilla, lotus, hyacinth etc. 6
. All the MCQ questions are important for class unit tests as well school terminal exams. Practice here with MCQ Online tests series free to score good marks in exams and clear your doubts in standard 6 science chapter 9 Major Deserts. There are four major deserts in the United States. They are all located in the western portion of the country and are defined to be areas that receive less than ten inches of precipitation (rain, snow, etc.) a year. Great Basin Desert. The Great Basin Desert is generally considered the largest of the four US deserts Desert, any large, extremely dry area of land with sparse vegetation. It is one of Earth's major types of ecosystems, supporting a community of plants and animals specially adapted to the harsh environment. In deserts, trees are usually absent, and shrubs or herbaceous plants provide only very incomplete ground cover
The Sahara, the Gobi, and the Atacama, top the list of the largest deserts in the world. Atacama Desert Facts. Atacama is the driest desert in the world, as it consists of an almost rainless plateau. It is a coastal desert, running from the Pacific coast to the Andes mountains. The Pan American highway runs across it, yet, it is sparsely inhabited ow of energy from one organism to another. C. break down dead organisms and recycle nutrients into the soil. D. are microscopic and other organisms cannot consume them. 12. The diagram below shows a marine food chain. Phytoplankton ! Zooplankton! Herring ! Salmon The zooplankton in this food chain are A. primary producers. B. primary consumers The daytime temperature averages 38°C while in some deserts it can get down to -4°C at night. The temperature also varies greatly depending on the location of the desert. Since desert conditions are so severe, the plants that live there need to have adaptations to compensate for the lack of water Free Question Bank for 6th Class Science The Living Organisms and their Surrounding Living Organisms and their Surroundings. Customer Care : 6267349244 Which statements are true about the tree in hilly areas? A) These trees are normally cone shaped. The following is a list of some plants and the habitat in which they live. Which option. The following ranges of permissive growth temperatures are approximate only and can vary according to other environmental factors. Organisms categorized as mesophiles (middle loving) are adapted to moderate temperatures, with optimal growth temperatures ranging from room temperature (about 20 °C) to about 45 °C
A biome is a large area characterized by its vegetation, soil, climate, and wildlife. There are five major types of biomes: aquatic, grassland, forest, desert, and tundra, though some of these biomes can be further divided into more specific categories, such as freshwater, marine, savanna, tropical rainforest, temperate rainforest, and taiga. Aquatic biomes include both freshwater and marine. Bacteria Questions and Answers. Get help with your Bacteria homework. Access the answers to hundreds of Bacteria questions that are explained in a way that's easy for you to understand Desert Biome Fauna. There is very limited types of plant and animal life that are able to live in the desert biome. Those that do live in the desert biome have learned to adapt to the temperatures. They have also learned to survive with very little water and very little food. The majority of the animals living in the desert biome are nocturnal Avoiding Heat. Behavioral techniques for avoiding excess heat are numerous among desert animals. Certain species of birds, such as the Phainopepla, a slim, glossy, black bird with a slender crest, breed during the relatively cool spring, then leave the desert for cooler areas at higher elevations or along the Pacific coast.The Costa's hummingbird, a purple-crowned and purple-throated desert. For Questions 1—3, write True if the statement is true. If the statement is false, change the underlined word or words to make the statement true. 1. 2. 3. The four elements that make up over 95 percent of the body in most organisms are oxygen, sulfur, nitrogen, and hydrogen. Matter moves through an ecosystem in cycles
15. Which of the following statements about the nitrogen cycle is true? A Although nitrogen is the most abundant atmospheric gas, plants cannot use it from the air. B Adding man-made fertilizers to farm fields will take needed nitrogen from the cycle. C The occurrence of lightning takes extra nitrogen molecules from the atmosphere and the cycle 19. If two organisms are able to carry out the same life function, we can expect to find which of the following? A. Both organisms have specialized cells for this function. B. This function evolved in the two organisms at the same time. C. Both organisms live in the same habitat. D. These organisms have an identical number of chromosomes. 20 A lichen (/ ˈ l aɪ k ə n / LY-ken or, sometimes in the UK, / ˈ l ɪ tʃ ə n /, LICH-en) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship. Lichens have properties different from those of their component organisms. They come in many colors, sizes, and forms and are sometimes plant-like, but lichens. Bacteria are microscopic, single-celled organisms that thrive in diverse environments. These organisms can live in soil, the ocean and inside the human gut. Humans' relationship with bacteria is.
Specific systems have been set up for the rigorous evaluation of GM organisms and GM foods relative to both human health and the environment. Similar evaluations are generally not performed for conventional foods. Hence there currently exists a significant difference in the evaluation process prior to marketing for these two groups of food Analogous structures are similar structures that evolved independently in two living organisms to serve the same purpose. The term analogous structures comes from the root word analogy, which is a device in the English language where two different things on a basis of their similarities
Blue-green algae, also called cyanobacteria, any of a large, heterogeneous group of prokaryotic, principally photosynthetic organisms. Cyanobacteria resemble the eukaryotic algae in many ways, including morphological characteristics and ecological niches, and were at one time treated as algae, hence the common name of blue-green algae.Algae have since been reclassified as protists, and the. Sedimentary Rocks. Rivers, oceans, winds, and rain runoff all have the ability to carry the particles washed off of eroding rocks. Such material, called detritus, consists of fragments of rocks and minerals.When the energy of the transporting current is not strong enough to carry these particles, the particles drop out in the process of sedimentation Only 5% of the Gobi Desert is sand dunes. 5. The Mongolian Gobi Desert can be split into 5 different ecoregions, including the Eastern Gobi desert steppe, the Alashan Plateau semi-desert, the Gobi Lakes Valley desert steppe, the Dzungarian Basin semi-desert, and the Tian Shan range. 6. The Gobi Desert is home to the Khongor sand dune (see below) The Sahara is the largest hot desert in the world, and the third largest desert behind Antarctica and the Arctic, which are both cold deserts.The Sahara is one of the harshest environments on. The following are a few examples of how abiotic factors can shape ecosystems by determining which organisms can live in them, and what those organisms must do to survive. In many places, prairie or savannah ecosystems evolve instead of forest or jungle ecosystems, for example, because there is not enough rain to support trees