Through friction, thisflexing produces heat in the moon’s interior capable of melting ice. Indeed,observations suggest liquid water exists beneath Europa’s icy crust.Photosynthetic life is impossible there because sunlight is completely absent,but life such as the microbes that flourish deep within ...
If scientists find life in the lake, it would support the idea that there might also be life on Europa. 根据短文内容选择最佳答案。1. The underlined word “likely” in the passage probably means ___ in Chinese. A. 喜爱的 B. 可能的 C. 绝对的2. Which of the following is NOT true acc...
D. The oceans of the earth.( )3. Which of the following is NOT true according to the passage? A. Nothing can live on the surface of Europa. B. Life may be found on planets with oceans and hydrothermal vents. C. Scientists want to study Europ a because it is the closest moon of ...
Select the correct answer. Which of the following elements makes up the majority of Earth's atmosphere? a. Oxygen b. Hydrogen c. Argon d. Nitrogen Elements in the atmosphere Although the Earth's atmosphere contains a lot of nitroge...
The evolutionary history of plants has been marked by a series of adaptations. 植物的“祖先”是能够进行光合作用的单细胞生物,或许和今天的藻类相似。 就像今天的藻类,进化出植物的组织可能缺少真正的根、茎、叶以及复杂生殖结构——例如花朵。" >The ancestors of plants were photosynthetic single-celled organ...
Which of the following could be unicellular? a) Prokaryotes. b) Eukaryotes. c) Either prokaryotes or eukaryotes. d) Neither prokaryotes nor eukaryotes. Cell Division: The cell division is that process in which one parent cel...
bacteria(prokaryotes), photosynthetic plants,fungi, and several non-photosynthetic plants. Read Also: Several features of Kingdom Plantae are as follows: They are stationary. They are static and usually remain in one place only. They have branches that expanded and green leaves due to the presenc...
1.Whichofthefollowingtypesofmoleculescontaincarbon?I.carbohydrates(sugars,starches)II.proteinsIII.lipids(fatsandoils)IV.DNAA.IonlyB.IIonlyC.IandIID.IandIIIE.Alloftheabove2.Inphotosynthesis,whichofthefollowingis/areproduced?A.Carbondioxide(CO2)B.Oxygen(O2)C.Glucose(C6H12O2)D.AandCE.BandC3.Aspar...
These organic metabolites could, and probably do, include a number of different classes of organic compounds.Some are likely toxins, such as those released by the dinoflagellates (a species of plankton) during red tides, which inhibit growth of other photosynthetic organisms.In such cases, the pop...
Oxidation reactions generally release energy (think of camp fires: the compounds in wood are oxidized by oxygen molecules in the air). B. Most living cells obtain the energy needed for cellular work by oxidizing metabolic fuels such as carbohydrates or fat (photosynthetic organisms can also ...