Question 13 Savanna and taiga belong to what specific biological level of organization? O community O biome O biosphere O ecosystem Question 14 1 A cell has a mutation that makes it unable to appropriately synthesize proteins. Which function of an organelle is likely to be impaired by this mutation? O nucleolus O ribosomes O rough endoplasmic reticulum O smooth endoplasmic reticulum Question 15

Q: Question 26 Natural selection means that O populations change over many generations a few…

A: Natural selection is an important term in evolution biology given by the naturalist Charles Darwin.…

Q: Exchange of genetic material in ciliates is known as O panmixis O macronucleosis O myxomycetosis O…

A: Single cell organisms mostly exhibit asexual reproduction. But sexual reproduction is also seen in…

Q: QUESTION 16 Who discovered DNA? O Meischer O Altmann O Morgan O Beadle and Tatum QUESTION 17…

A: Answer:16 In late 1860s, Friedrich Miescher first identified DNA.

Q: QUESTION 48 Copernicus, Galileo, and Darwin found that O a. prevailing belief b. astronomical…

A: Note: We’ll answer the first question that is question no. 48 since the exact one wasn’t specified.…

Q: Which of the following is not a characteristic of muscle tissue? O They are attached to underlying…

A: Answer.  1. The important characteristic of muscle tissue are: They exhibit excitabilityThey exhibit…

Q: Which of the following components is not present in Gram-positive bacteria? O a. Lipopolysaccharide…

A: Ans. 1. Gram-positive bacteria:  In bacteriology, these kinds of bacteria have a thick cell wall and…

Q: Which virus replicates in the cytoplasm of skeletal muscles and then moves across the neuromuscular…

A: Disclaimer: As per Bartleby guidelines, we will answer only the first question. Please repost the…

Q: A species often changes over many generations because animals get tired of eating the same thing all…

A: A group of interbreeding organisms that can produce fertile offspring is called species. The sow and…

Q: QUESTION 17 The only thing that allows mobility in living things is contractile proteins (with the…

A: (17)  Contractile proteins help the sliding of muscle fibers and thus make movement possible.  The…

Q: QUESTION 29 The interaction of two or more polypeptide chains in a hemoglobin molecule is its O a.…

A: Hemoglobin consists of 4 polypeptide chain. two alpha chains of 141 amino acid residues each and two…

Q: Question 2 Crustaceans have closed circulatory systems all of the above are mostly water dwelling…

A: Crustaceans form a large , diverse arthropod taxon including animals like crabs, lobsters , shrimps…

Q: QUESTION 17 Micro- and Macro-evolution are not possible without DNA mutation and reproduction making…

A: Question 17: Micro- and Macroevolution are not possible without DNA mutation and reproduction making…

Q: A group of cells that are similar in structure and function are called: O organism. O tissues. O…

A: The cell is the basic structural and functional unit of the body. It is responsible for various…

Q: QUESTION 5 Kingdom Fungi and Kingdom animalja are heterotrophic and show motility. O True O False…

A: Over repeated generations, evolution is explained by variation in heritable traits of different…

Q: Why do bacteria form endospores? O Endospores are formed to increase the surface are of the cell to…

A: Endospores are thick walled structures formed by genus Bacillus and Clostridium.

Q: Question 53 Protists (Kingdom Protista) can be: O none of the choices are correct O autotrophic O…

A: We will answer the first question as question number that needs to be solved is not mentioned.…

Q: Synthesized proteins are processed either inside the organelles or in the cytoplasm True False…

A: The proteins are constituted of twenty naturally occurring amino acids that are linked via peptide…

Q: Question 7 All cells contain which three structures at some point? Cell wall, flagella, and…

A: We’ll answer the first question (Question-7) since the exact one wasn’t specified. Please re-submit…

Q: QUESTION 7 like the flagella of Not all bacteria are motile, but for those who can move, a flagella…

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Q: O Knew a lot about birds O All of the above O Delayed publishing because evolution went against his…

A: Charles Darwin is known as the father evolution who predominantly worked on developing the…

Q: HIV is a retrovirus that has a few essential enzymes. One enzyme is O glycoproteins which are…

A: 2.) protease which aids in the attachment of the enveloped HIV onto body cells.

Q: QUESTION 31 Which molecule is displaced when a vesicle and its target membrane fuse? OA. Water OB.…

A: Introduction :- Vesicles are small, membrane-bound sacs that transport materials between different…

Q: What is the simplest animal in the animal kingdom? O cockroach O earthworm O jellyfish O flatworm…

A: Since you have asked multiple question, we will solve the first question for you.    The simplest…

Q: Question 8 Why does each cell need DNA? O DNA is used by cells for cell transport DNA determines the…

A: Introduction DNA contains the instructions needed for an organism to develop, survive and reproduce,…

Q: In plant cells, DNA molecules are found inside which structures? O the nucleus O the mitochondrial…

A: Hi, Thanks For Your Question.  Answer : Correct Option Is A, B and C.

Q: Question 6 When light hits the special light-reactive molecular units inside rod cells, how do these…

A: Introduction : 1. Eyes are the special sensory organs which help living organisms with vision .…

Q: QUESTION 26 Osmosis and Diffusion of solutes do not require energy input, but active transport and…

A: The cell membrane, also called the plasma membrane, is found in all cells and separates the interior…

Q: QUESTION 27 Microtubules are made of tubulin. When tubulin is bound to GTP, it has a higher affinity…

A: Note- Since you have asked multiple questions, we will solve the first question for you. If you want…

Q: Which of the following functions is NOT made possible by lysosomes? O breakdown of large molecules O…

A: Lysosomes are the membrane bound organelles that are usually called as the suicidal bags of the…

Q: QUESTION 14 Endoplasmic Reticulum always has ribosomes attached to its surface which is why it's…

A: Answer 14: Endoplasmic reticulum is an organelle in cell and is involved in protein synthesis,…

Q: QUESTION 10 When using an organism's taxonomic name, scientists usually abbreviate by using just…

A: Homo modernus - The Homo modernus (modern man) was born some time in the 780s  Homo ferox means…

Q: Mark three feature that are found in all cells. cell membrane cell wall DNA cytoplasm nucleus O…

A: Cell is the basic structural and functional unit of life. It is the building block of the body.

Q: Question 8 What causes eyeshine in some animals like cats? O a reflective layer at the back of the…

A: 8. ANSWER;- A reflective layer at the back of the eye that allows light to bounce around more,…

Q: QUESTION 33 What is the taxonomic order to which humans belong? felidae mammalia primates homo…

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Q: QUESTION 15 In 1859, Charles Darwin published On the Origin of Species, in which he: O presented the…

A: charles darwin in 1859 published on origin of species the theory was proposed to explain one of the…

Nitrogen metabolism

Nitrogen metabolism is the synthesis, utilization or uptake, breakdown, and excretion of nitrogenous compounds in the body. The nitrogen metabolism encompasses nitrogen fixation, biosynthesis, and the breakdown of amino acids, purines, and pyrimidine. Since nitrogen-containing compounds are required for various life processes, nitrogen is an important element of life.