According to the text, what are the three things that make for a more stable environment when organisms burrows beneath the surface of the sediment?

Q: A scientist discovers something new about the composition of the mantle. What type of rock (group)…

A: The mantle is the part of the earth between its crust and its core.

Q: In what year were the calcium looses from the two sites closest together

A: Calcium is an important mineral for the body function. The body needs calcium to maintain strong…

Q: underground into hardened rock. melted rock is READING Diagrans called magma. What causes a…

A: Rocks forms the important part of the earth. The cycle of rock formation is evident as it helps in…

Q: What does an age structure show?

A: Population ecology is the study of the populations in relation to the environment. It includes…

Q: Whose discovery made the dating of ancient materials possible?

A: Radiocarbon dating works by comparing the three different isotopes of carbon. Isotopes of a…

Q: Which organisms would likely be found in level A? Level D Level C Level B Level A

A: Trophic levels of an organism are their positions they occupied in the food web or food chain. Ther…

Q: According to the text, what is fish recruitment?

A: According to the question, we have to give an explanation on fish recruitment. Let us have a look at…

Q: Wilat IS the sigin of the ochre sea star メ C = ? A= ? B= godsenec barpacle whelk chiton + mussel…

A: The trophic level is defined as the feeding level occupied by an organism in the food chain, food…

Q: How can seals and whales stay underwater for long periods?

A: Seals and whales stay underwater for long periods because of the presence of unique protein…

Q: If you found a small fishlike animal along the shoreline, how would you determine whether or not it…

A: Lancelets or amphioxi are chordates belonging to the the subphylum cephalochordates. They can be…

Q: How does a crab help an otter make fur?

A: There is no such scientific explanation for how does crab help an otter to make fur

Q: What factors influenced the isotopic composition of oxygen in skeletons of marine organisms during…

A: The factors that influenced the isotopic composition of oxygen in the skeleton of marine organisms…

Q: What does a conical age pyramid with a broad base represents?

A: An age pyramid is a graphical representation  of the number of individuals in various age groups of…

Q: What would appear as the pioneer organisms on bare rock?

A: The first living things to invade such an area and establish themselves in it are known as pioneer…

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: According to the text, list the 5 main groups of organisms that inhabit the sandy shores.

A: Mullet, sand smelt, and seabass are among the other species that frequent the region. Land animals…

Q: What causes a large variation in the size of catfish in a pond?

A: Understanding the causes of variation within a population of channel catfish (Ictalurus punctatus)…

Q: What are omnivores

A: Food is essential need for both animals and humans. There are three types of animal: Carnivores,…

Q: O Carboniferous.

A: Answer is B.  Carboniferous

Q: hypothesis describing what you believe may be causing the heavy growth of algae in the pond.

A: Algae is a eukaryotic organism that can conduct photosynthesis and lives in water. Algae is…

Q: What would happen if the number of blue crabs increased significantly?

A: The blue crab gets its name from its sapphire-colored claws. The shell, or carapace, of adult…

Q: How is sediment used for dating? O A. The newest layer is most radioactive. O B. The newest layer is…

A: Fossils are the evidences for the history of the life on earth, the remains of a organism or any…

Q: 1. Which is older: the arrowhead or the spear point? 2. If G is a well, who do you think dug it? 3.…

A:

Q: Which sentence correctly compared the acidity of acid rain to acidity of natural rainwater

A: The acid rain is caused by the oxides of sulfur and nitrogen which when react with water lead to the…

Q: To move within the water column, the animal above employs

A: The correct option is cilia. The given image is of Mnemiopsis leidi, also known as the sea walnut or…

Q: Which later represent the oldest layer

A: The earth internal structure is given in the image with different layer of earth.  The layer of…

Q: Cenozoic Era

A: The Cenozoic era began about 66 million years ago and continues into the present, is the third era…

Q: Explain why it is important for rocks to weather?

A: A rock is the aggregate of minerals that may contain one or different types of minerals. A common…

Q: adaptations that allowed animals to adapt to life on dry land.

A: Shift from water to land require some adaptation. Terrestrial animals must have: Exoskeleton to…

Q: How the early man could easily preceive the ddiffernce between inanimate matter and living…

A: When we try to define living, we conventionally look for distinctive characteristics exhibited by…

Q: Rock strata with fossils Which organism is most recent? a b d a

A: Fossils These are defined as the remains of organisms such as plants, animals, single-celled living…

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: Nature's Dice

A: Key terms Term Meaning Pedigree Chart that shows the presence or absence of a trait within…

Q: about HARRIS Boric Acid Roach and Silverfish Killer Powder.

A: HARRIS Boric Acid Roach and Silverfish Killer Powder is use for killing insects

Q: In the sketches below, which of type of plate boundaries produce the deepest earthquakes?

A: Earthquake generally arises from crust or upper mantle of the earth i.e 800 km deep from the earth's…

Q: What were the consequences of an “oxygenated” Earth to life and to the atmosphere itself? (explain)

A: About 2.4 - 2.0 billion years ago, during the paleoproterozoic era, there was a time phase when the…

Q: How do kangaroo rats live in the absence of water in North American deserts?

A: The desert kangaroo rat is a rodent species and it belong to the family Heteromyidae. They found in…

Q: Which organism is an endosymbiont?

A: The organism is defined as the any individual entity that embodies the properties of life. It is…

Q: Geometric representation of age structure is a characteristic of what?

A: Step 1 Population ecology is the study of all aspects of the population found in an area and the…

Q: Design a controlled experiment to test the hypothesis that water acidification caused by acid rain…

A: A controlled experiment refers to a scientific test in which one factor or variable is tested at a…

Q: Use the diagram below to answer the questions that follow. 1. Identify the three plates in the…

A: The edges where two plates meet are known as plate boundaries. The majority of geologic events, such…

Q: If a fish is able to breathe outside of water but does not reproduce, that trait?

A: Introduction: Evolution is the change in the inherited characteristics of biological populations…

Q: Give reason why the fresh water fish cannot survive in sea water.

A: Tonicity is defined as the measure of effective osmotic pressure gradient. It is the water potential…

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.