where on the earth did life mostly likely first emerge, where all the ingredients and conditions for life existed? a. volcanic islands b. deep oceanic vents c. tidal pools d. tropical rainforest

Q: The endosymbiotic theory explains the:a. origin of the first prokaryotic cells.b. origins of…

A: Genome is referred to as the genetic material of an organism that can be DNA or RNA(viruses). The…

Q: how would David Christian define the mini thresholds of life? a. times when a new and more complex…

A: Explanation: The emergence of life on Earth is an immensely rich and complex set of developments…

Q: How can you know what happened millions of years ago if no one was there to see it  Explain

A: Every living creature on the planet has the potential to evolve into something. Cells adapt to…

Q: Can you answer all the parts of this question about this picture  A: What order do these organisms…

A: Mollusca are mostly found in marine and freshwater,  their body has a cavity , the body is covered…

Q: Understanding geologic time is significant because it helps us  a. Understand humans’ impact on our…

A: The evolution of different organisms occurs in different time periods on the earth. The primitive…

Q: How did discoveries in the deep sea influence scientists' ideas about whether life could be found…

A: A discussion of life elsewhere therefore naturally begins with a review of some key aspects of the…

Q: Describe in your own words how the Earth’s layers were formed

A: Earth is the planet on which we live.

Q: Place these events in the history of life on Earth in the order that they occurred. a. accumulation…

A: Evolution is the process of slow gradual change over a period of time.  The process of evolution…

Q: Give two reasons why the evolution of multicellularity was important. Edit View הזחן

A: Evolution is the process by which simple character Is converted into complex ones .

Q: What event is thought to have contributed to the evolution of eukaryotes? a. global warming b.…

A: Eukaryotes can be defined as organisms that comprise of eukaryotic which includes the protists,…

Q: Which allows a variety of life to thrive in estuary ecosystems? A the temperature fluctuations B.…

A: Estuaries are a type of water body or wetland which is formed when the freshwater body [a river or…

Q: Explain how the diversity of life evolved over time.

A: The term biological diversity or biodiversity refers to the variety of living organisms and their…

Q: In which law two different species cannot live for a long duration in the same niche or habitat?

A: Species refers to group of organisms that can interbreed among themselves to give rise to fertile…

Q: what simple organic molecules were likely the precursors of life? a. water and proteins b. amino…

A: The two important aspects of life are its origin and evolution. The branch of life science, which…

Q: Which sentence best describes the logic of scientific inquiry?(A) If I generate a testable…

A: The hypothesis are made or developed when an individual start inquiry into a new subject. It assumes…

Q: In what order did events occur that led to life on Earth? (1) appearance of aerobic organisms, (2)…

A: C is possible right answer

Q: The early atmosphere lacked which gas? 1. carbon dioxide 2. oxygen 3. amonia 4. nitrogen

A: The early atmosphere was likely to contain a lot of carbon dioxide and water vapor because it was…

Q: Compare and contrast the “primordial soup” and the “iron-sulfur world” hypotheses.

A: In ecology, The earlier earth is formed by endogenous abiotic synthetases with the collision of…

Q: What process does biomagnification describe?   A. Cell Growth  B. Concentration of Substances C.…

A: Answer: Biomagnification : It is the process by which toxicity increases within the organisms, it…

Q: The fossil record shows that in just the last 600 million years, there have been five instances of…

A: Explanation: The most studied mass extinction, which marked the boundary between the Cretaceous and…

Q: What model for WHERE life began (not HOW life began) seems to be highly unlikely, and which model is…

A: Introduction :- Evolution is the phenomenon which leads to the origin of first life on our planet…

Q: .Who among these evolutionary thinkers stated that the living forms come from the seas? a. Erasmus…

A: Introduction Evolution:- It is simply the biological change of a species over a span of time or the…

Q: Describe what the early atmosphere was like and what cause a large amount of oxygen (O2) to build up…

A: Early atmosphere  Around 4.6 billion years ago, the Earth was formed from a heated mixture of gases…

Q: geology

A: Changes in population depends on two factor Availability of food Compition If any environment has…

Q: Assuming that the early lithosphere had already been created, which sphere (the atmosphere or the…

A: Introduction The Stiff, Outermost Shell Of A Terrestrial-type Planet Or Natural Satellite Is Called…

Q: stromatolite is a structure a. produced by endosymbiosis b. that formed only on the early Earth c.…

A: Ancient stromatolites can help reveal details about the early Earth's environment.

Q: Why was it believed that life began in the seas and not in land or air?

A: Scientists believe that the life on the earth began in the depths of the ocean and not on the…

Q: The first forms of life on Earth were thought to be_________. a. single-celled plants b. prokaryotes…

A: A) single celled plants

Q: The term 'ecosystem' was proposed by- (A) Odum (B) Tansley (C) Whitker (D) Goli

A: Introduction - Plants, animals, and other species, as well as weather and topography, all work…

Q: Postulate a theory on how life started until multicellularity

A: The primitive earth's reducing environment will aid in the formation of organic compounds through…

Q: Scientists think that terrestrial life probably originated in Earth's oceans because Choose one:…

A: Question - Scientists think that terrestrial life probably originated in Earth's oceans because…

Q: Which is a characteristic of pseudoscience or bad science? a) Considers evidence for and against a…

A: Pseudoscience comprises explanations, beliefs, or practices that case to be both logical and…

Q: what key trait of life developed with the emergence of multicellular organism, the third threshold…

A: Multicellular organisms are those where there is specialization of different cells for various…

Q: How greatly do men cause Earth to change? Does it signify the start of a new epoch

A: Epoch is defined as the fixed point of time in history, which is established y the occurrence of…

Q: The first forms of life on Earth were a. plants b. microorganisms c. birds d. dinosaurs

A: According to research on fossils, life first appeared on earth 3.5 billion years ago, making it 4.5…

Q: The oxygen revolution changed Earth’s environmentdramatically. Which of the following took advantage…

A: The earth is approximately 4.54 billion years ago and the conditions at that time were not meant for…

Q: The evolution of eukaryotes was most directly enabled by which of the following? a. Diversification…

A: According to guidelines we have to answer the first question only. so please kindly post the…

Q: Which ancient civilization was located at A

A: A civilization is a complex human society, usually made up of different cities, with certain…

Q: Which of the following evidence was used by Wegener to support his hypothesis that the conti- nents…

A: Alfred Wegener is a German scientist who proposed a hypothesis called Continental drift in the early…

Q: If the evolution of life was placed on  a 24 hour clock, when did humans arrive? a.  At the 30…

A: The geologic time scale of Earth is divided into four large segments called Eons: Hadean, Archean,…

Q: Single-celled Eukaryotes were preceded by what environmental development on Earth? O a. The forming…

A: Eukaryotes are the organisms having well defined nucleus with cellular organelles such as…

Q: Use the diagram below to answer the following question.

A: Stress is the force applied to an object. In case of rock the force supplier per area is the stress.

Microbes

Microbes are microscopic living organisms that can only be detected with the help of specialized laboratory equipment called a microscope. These living organisms are so small that they are not visible to the naked eye.