Approximately how long ago did homo sapen (humans) first  appear on Earth 2,000 years ago 5-7 million years ago 65 million years ago 150,000 - 200,000 years ago    Hominins developed their unique larger brains before acquiring the ability to move on two feet.  True  False   the production of atmospheric oxygen in Earth's environment started with photosynthesis by prokaryotes photosynthesis by multicellular eukaryotes photosynthesis by single celled algae photosynthesis by land plants   Homologous structures among animal provide evidence for evolution in that theses structure are all produced by the same gene different in different animals, but are modifications of the same basic structure similar in function, but of different basic structure all different structures within the same species

Q: Of the two types of photosynthesis, C3 and C4, which one is more evolved? Justify your answer.

A: Introduction Photosynthesis is the process by which plants, algae, and some bacteria convert light…

Q: The oxygen revolution permanently changed Earth’s environment and dramatically impacted the…

A: We are answering first 3 questions. For rest of questions pls repost.     Oxygen evolution is a…

Q: Which of the sentences below does not describe an autotroph? a wheat that is used to make flour for…

A: Introduction An autotroph is an organism that is able to form nutritional organic substance from…

Q: What form of photosynthesis was most likely the first to appearon Earth?

A: Photosynthesis is the process of formation of food using sunlight and some inorganic molecules.…

Q: Briefly describe the relationship between photosynthesis and respiration in terms of the reactants…

A: Introduction Photosynthesis is the process by which green plants use sunlight, carbon-dioxide…

Q: Place the five metabolic types in the probable order of their evolution: oxygenic photosynthesis,…

A: Understanding the evolution of metabolic pathways is a fascinating journey through the history of…

Q: Which of the following provide support for the endosymbiont hypothesis? Check all that apply the…

A: Endosymbiotic hypothesis Endosymbiotic hypothesis express that mitochondria and chloroplasts in…

Q: Persimmons are photosynthetic autotrophs that produce flowers with four petals. Which of the…

A: A phylogenetic tree is a branched representation of evolutionary relationship between different…

Q: Stanley Miller and Harold Urey provided the first experimental evidence that        . Group of…

A: Introduction :- The Miller–Urey experiment was a chemical experiment that reproduced the…

Q: According to this image of the carbon cycle, from your OpenStax textbook, which of the following…

A: Option 1 is the answer. Photosynthesis removes carbon from atmosphere in the form of  carbondioxide.

Q: Around the time Eukaryotic Cells began to compartmentalize their reactions, and the chloroplast and…

A: Introduction  Origin of life on earth can be traced back to 3.4 billion years ago and as we now know…

Q: Animals do not perform photosynthesis; however, it is essential to out survival

A: On earth all life is grass! Earth is inhabited by two major categories of living organisms - plants…

Q: What are the ancestors of the chloroplasts in all plant cells?   Ancient mitochondria   Ancient…

A: Endosymbiotic theory is a theory that explains us how the eukaryotic cells are originated from the…

Q: Discuss and explain how Aristotle's "Four Causes" are demonstrated by the process of photosynthesis.…

A: Introduction :- Photosynthesis is a process by which green plants, algae, and some bacteria use…

Q: There are some exceptional free living organisms from the tree of life that lack rRNA true or…

A: Ribosomal RNA (rRNA) is a type of RNA molecule that is a fundamental component of ribosomes, the…

Q: Place the five metabolic types in the probable order of their evolution: oxygenic photosynthesis,…

A: Accumulation of different changes due to different environmental conditions in the organisms gave…

Q: Explain how animals, plants and fungi obtain nutrients Which of the following is FALSE? Please…

A: Introduction  Like plants, animals, protozoa, and monera, fungi are a type of eukaryotic organism…

Q: Most of oxygen in the Earth's atmosphere came from photosynthesis True O False

A: Introduction: Photosynthesis is the process of preparing food in the presence of sunlight and…

Q: Algae are single-celled eukaryotic organisms that perform photosynthesis. Some algae are known as…

A: statement 1 is most reasonable Algae are single cellular Eukaryotic Photosynthetic organism having…

Q: Based on what geologists have learned about Earth history, levels of oxygen in Earth's ancient…

A: Glycolysis is the process in which glucose is converted into pyruvate by a 10 step process and every…

Q: Considering what you know about how atmospheric oxygen changed over the 4.5 billion years that life…

A: In all the organisms, the metabolic reactions take place in the cells to convert the biochemical…

Q: The ancestor of the chloroplasts found in green algae was most likely; A free living photosynthetic…

A: Chloroplast is the cell organelle which is responsible for carrying out photosynthesis. It helps the…

Q: What types of cells perform photosynthesis?  a All plants  b All eukaryotic  c All prokaryotic  d…

A: option a is the correct answer. ( In plant cell)  Photosynthetic cells are quite diverse and include…

Q: Which of the following organisms appeared on earth first?     Prokaryotes     Eukaryotes…

A: Earth is considered to be the 4.5- 5 billions year old and is the habitat of vast form of lifes.

Q: Which of these events occurred in the Mesozoic era? First mammals First cyanobacteria First bacteria…

A: Mesozoic era has three periods cretaceous, Jurassic and Triassic periods. It is the age of reptiles.

Q: Oxygen is necessary for the evolution of complex forms of life, What organisms were responsible for…

A: Oxygen is very important for all the metabolic functioning of the organs and organs systems in the…

Q: Plants usually perform [Select] Animals perform [ Select ] [ Select ] both photosynthesis and…

A: Photosynthesis: Photosynthesis is the process by which green plants and some organisms use sunlight,…

Q: Given that the early atmosphere did not contain oxygen gas, using only the information covered in…

A: Photosynthesis is a process that occurs in plants and also other organisms such as fungi, bacteria,…

Q: ies most likely ha fferences in their

A: Phylogenetic tree gives information about the evolutionary relationship present between different…

Q: The ancestor of the chloroplasts found in modern day land plants was/is; A photosynthetic prokaryote…

A: A Chloroplast is a cell organelle which is found only in algal and plant cells. Chloroplast is…

Q: Why did the evolution of multicellular organisms such as plants and animals have to be preceded by…

A: evolution is a process or a theory that describes how the organisms developed from simple organic…

Q: True or false: All phototrophic organisms on Earth are eukaryotic.

A: Everybody needs energy in order to do its functions and cellular processes. This energy comes from…

Q: Organisms that evolved the ability to use photosynthesis radically changed Earth by producing…

A: Numerous cellular organisms employ the natural mechanism of photosynthesis to transform light energy…

Prokaryotic evolution

The term evolution means the gradual change or a transformation from a simple or primitive state to a complex or advanced state. Prokaryotic evolution is a concept that involves the evolution of the form and function of most primitive organisms (prokaryotes) through several stages and changes to form diverse life as a part of organic evolution.