Description : The first organisms were (a) chemoautotrophs (b) chemoheterotrophs (c) autotrophs (d) eukaryotes
Last Answer : chemoheterotrophs
Description : The first organisms to appear on Earth were chemoheterotrophs or chemoautotrophs ? -Biology
Last Answer : answer:
Description : Microorganisms that use organic compounds as energy and carbon sources are a. Chemoheterotrophs. b. Chemoautotrophs. c. Photoautotrophs. d. Photoheterotrophs.
Last Answer : c. Photoautotrophs.
Description : 1st life on earth was (a) cyanobacteria (b) chemoheterotrophs (c) autotrophs (d) photoautotrophs. (
Last Answer : (b) chemoheterotrophs
Description : Following are the two statements regarding the origin of life. (A) The earliest organisms that appeared on the earth were non-green and presumably anaerobes. (B) The first autotrophic organisms were the chemoautotrophs that ... ) is correct but (B) is false. (d) (B) is correct but (A) is false.
Last Answer : (a) Both (A) and (B) are correct.
Description : Organisms which obtain energy by the oxidation of reduced inorganic compounds are called (a) photoautotrophs (b) chemoautotrophs (c) saprozoic (d) coproheterotrophs.
Last Answer : (b) chemoautotrophs
Description : Is a green housefly a organisms or autotrophs?
Last Answer : Need answer
Description : Organisms using simple food material acquired from inorganic sources in the form of carbon dioxide and water are called – (1) Autotrophs (2) Heterotrophs (3) Organotroph (4) Both (1) and (3)
Last Answer : a) Autotrophs Explanation: Autotroph means self-feeding in Greek or producer and is an organism that produces complex organic compounds such as carbohydrates, fats, and proteins from simple substances using energy from light.
Description : .How many organisms in the list given below are autotrophs? Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter, Streptomyces, Saccharomyces, Trypanosoma, Porphyra, Wolffia (a) Four (b) Five (c) Six (d) Three
Last Answer : (c) Six
Description : Autecology deals with: a. Study of individual organism b. Study of group of organisms c. Study of autotrophs d. Study of heterotrophs
Last Answer : a. Study of individual organism
Description : $ Kingdom Monera includes the unicellular prokaryotic organisms. ! Eukaryotes are the organisms which have a eukaryotic nucleus and double membraned o
Last Answer : $ Kingdom Monera includes the unicellular prokaryotic organisms. ! Eukaryotes are the organisms which have a ... D. If both As and R are wrong.
Description : $ Unicellular eukaryotes are the simplest organisms. ! Prokaryotes have the mitochondria whereas eukaryotes are without mitochondria.
Last Answer : $ Unicellular eukaryotes are the simplest organisms. ! Prokaryotes have the mitochondria whereas eukaryotes are ... . If both As and R are wrong.
Description : Which of the following refer to correct example(s) of organisms which have evolved due to changes in environment brought about by anthropogenic action? (1) Darwin's Finches of Galapagos islands. (2) Herbicide resistant weeds. (3) Drug ... ) (b) (1) and (3) (c) (2), (3) and (4) (d) only (4)
Last Answer : (c) (2), (3) and (4)
Description : In the light of recent classification of living organisms into three domains of life (bacteria, archaea and eukarya), which one of the following statements is true about archaea? (a) Archaea ... respects. (d) Archaea have some novel features that are absent in other prokaryotes and eukaryotes.
Last Answer : (d) Archaea have some novel features that are absent in other prokaryotes and eukaryote
Description : What are Chemoautotrophs? -Biology
Description : 83. Which one of the following is wrong statement ? (1) Nitrosomonas and Nitrobacter are chemoautotrophs (2) Anabaena and Nostoc are capable of fixing nitrogen in free-living state also (3 ... living conditions (4) Phosphorus is a constituent of cell membranes, certain nucleic acids and all proteins
Last Answer : Phosphorus is a constituent of cell membranes, certain nucleic acids and all proteins
Description : Name two inorganic substances which are used by autotrophs to make food. -Science
Last Answer : Carbon dioxide and Water.
Description : Why are green plants called autotrophs? -Science-7
Last Answer : The mode of nutrition in which organisms synthesizes their own food using inorganic materials is called autotrophic nutrition. Green plants use these inorganic materials to make their own food. Therefore they are called autotrophs.
Description : Why are methanogens autotrophs? -Biology
Description : If the pioneer stage is dominated by autotrophs, then the succession is called.
Last Answer : If the pioneer stage is dominated by autotrophs, then the succession is called. A. Allogenic B. Autogenic C. Autotrophic D. Heterotrophic
Description : Do plants and other autotrophs such as Euglena and seaweed do respiration too?
Last Answer : All plants must have a way of getting energy. Most plants evenunderwater plants such as seaweed use photosynthesis and cellularrespiration to get energy.
Description : Is a fern a danclelion or autotrophs?
Description : Can Autotrophs can perform photosynthesis because they have what?
Last Answer : A nucleus
Description : Members of this kingdom are multicellular, eukaryotic autotrophs that also carry out the process of photosynthesis.?
Last Answer : Plantae
Description : If the source of energy for bacteria is from chemical compounds they are said to be a. Phototrophs b. Autotrophs c. Chemotrophs d. Chemolithotroph
Last Answer : Ans: C
Description : Plants belong to the following category of trophic levels C A. Consumers B. Heterotrophs C. Autotrophs D. Primary consumers
Last Answer : Autotrophs
Description : Chlorophyll a occurs in (a) all photosynthetic autotrophs (b) in all higher plants (c) all oxygen liberating autotrophs (d) all plants except fungi
Last Answer : (c) all oxygen liberating autotrophs
Description : The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the ones categorisedas (a) cyanobacteria (b) archaebacteria (c) chemosynthetic autotrophs (d) heterotrophic bacteria.
Last Answer : (d) heterotrophic bacteria
Description : All bacteria that inhabit the human body are A- heterotrophs B- chemolithotrophs C- autotrophs D- phototroph
Last Answer : heterotrophs
Description : E. coli is belongs to - - - - - - - class A Chemotrophs B Autotrophs C Chemolithotrophs D Saprophytes
Last Answer : A Chemotrophs
Description : The living organism which make their own food through photosynthesis are known as ________. a) autotrophs b)hetrotrophs c)decomposers d)saprophytes
Last Answer : a) autotrophs
Description : The most abundant prokaryotes helpful to humans in marking curd from milk and in production of antibiotics are the ones categorised as (1) Heterotrophic bacteria (2) Cyanobacteria (3) Archaebacteria (4) Chemosynthetic autotrophs
Last Answer : (1) Heterotrophic bacteria
Description : The first amino acyl tRNA which initiates translation in eukaryotes is (A) Mehtionyl tRNA (B) Formylmethionyl tRNA (C) Tyrosinyl tRNA (D) Alanyl tRNA
Last Answer : Answer : A
Description : Genetic and biochemical similarities between contemporary cyanobacteria and eukaryoticchloroplasts are accepted to mean that A- .eukaryotes evolved from bacteria B- eukaryotes evolved from archaea C- . ... evolved in eukaryotes D- .cyanobacteria arose from chloroplasts which escaped from plant cells
Last Answer : eukaryotes evolved from archaea
Description : RNA transcription is more complex in eukaryotes because it is first made as a primary RNA transcript that contains intron and exon sequences. What kind of modification must occur to produce a mature mRNA?
Last Answer : RNA splicing. Introns must be removed and exons are spliced together to form a mature RNA transcript.
Description : Origin of replication in eukaryotes -Biology
Description : Explain transcription in Eukaryotes -Biology
Description : single - celled eukaryotes are included in
Last Answer : single - celled eukaryotes are included in A. Portista B. fungi C. Archaea D. Monera
Description : In eukaryotes, mRNA is synthesised with the aid of
Last Answer : In eukaryotes, mRNA is synthesised with the aid of A. RNA polymerase 3 B. RNA polymerase 2 C. RNA polymerase 1 D. Reverse transcriptase
Description : $ Protists are unicellular eukaryotes. ! Eukaryotes do not have a nucleoid.
Last Answer : $ Protists are unicellular eukaryotes. ! Eukaryotes do not have a nucleoid. A. If both As and R are ... is wrong D. If both As and R are wrong.
Description : $ Protists are eukaryotes ! Eukaryotes do not have the double membraned organelles.
Last Answer : $ Protists are eukaryotes ! Eukaryotes do not have the double membraned organelles. A. If both As and R are ... wrong D. If both As and R are wrong.
Description : $ Peptidogycan is found in the cell wall of Algae. ! Blue-green Algae are a group of Eukaryotes.
Last Answer : $ Peptidogycan is found in the cell wall of Algae. ! Blue-green Algae are a group of Eukaryotes. A. If ... R is wrong D. If both As and R are wrong.
Description : What do eukaryotes cells have that prokaryotes don't?
Description : Are phytoplankton eukaryotes that are photosynthetic?
Description : What is true of eukaryotes?
Last Answer : Thats correctTheir cells have nuclei. -
Description : What observations proves that a cell is a eukaryotes?
Last Answer : A eukaryote under observation has no membrane to separate thenucleus.
Description : How are prokaryotes and eukaryotes are similar?
Last Answer : Ribosome