Which is an example of trace fossils?
A. an insect getting stuck in a tree sap that hardened
B. sediment hardening around a trilobite
C. footprints from a dinosaur in mud that hardened
D. minerals replacing tissue in wood and hardening
Answer:
A. An insect getting stuck in tree sap that hardened
Explanation:
The answer is A because that is one of the ways to collect DNA samples for animals. The other way is digging for fossils.
Is the classification system of domains and kingdoms the only system that scientists have ever used to classify organisms?
No, the classification system of domains and kingdoms is not the only system that scientists have used to classify organisms.
What is a classification process?The classification of living organisms has been a continuous process since the time of Aristotle, and scientists have used various systems over time to classify organisms.
Prior to the current system, scientists used a five-kingdom classification system that classified organisms into Monera, Protista, Fungi, Plantae, and Animalia. However, advances in molecular biology and genetics led to the realization that this system did not accurately reflect the evolutionary relationships among organisms.
The current classification system, which is based on three domains - Archaea, Bacteria, and Eukarya - was proposed in the late 1970s and early 1980s by Carl Woese and his colleagues.
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Life on Earth depends on a balance of photosynthesis and respiration.
Explain how the two processes work in a cycle.
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Answer:
okay what is the question
help me please put the names of the planets in increasing order based on their distance from the Sun.
Answer:
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Explanation:
Please answer the two following questions thx!!
Answer:
Explanation:
A And A
Answer: Question 2: produce energy for the cell
Question 3: Nucleus
Fill in the Blank Complete the following sentence. If experiments support the existence of a new phenomenon, then the original theory may be
____________
Researchers have been studying how emissions from both volcanoes and human activities, such as the burning of fossil fuels, impact the atmosphere. Both types of emissions contribute to the total CO2 levels in the atmosphere. Graph 2 shows that atmospheric CO2 levels have been steadily increasing over time. This increase in CO2 levels has been linked to the increase in global surface temperatures.
Explain why the total mass of carbon must be decreasing in a different step of the slow carbon cycle based on the on the increase in atmospheric CO2.
Answer:
just look at the graph it literally tells you the answer
Which of the following provides evidence that supports the continental drift theory?
Fossils of the same organisms found in different continents
Magnetized rocks that do not match with the poles
Seafloor spreading
Volcanic activity
Answer:
The First Answer with the fossils.
Explanation:
It explains why an animals fossils were found in 2 places that are no where near eachother. So it had to have been the same continent at somepoint.
Answer:
Continental drift was a theory that explained how continents shift position on Earth's surface. Set forth in 1912 by Alfred Wegener, a geophysicist and meteorologist, continental drift also explained why look-alike animal and plant fossils, and similar rock formations, are found on different continents.
Explanation:
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A scientist observes two stars in the night sky through a telescope. Star A is white in color and relatively dim. The star’s estimated temperature is very high.
Star B is red in color and extremely bright. The star’s temperature is low compared with other stars.
Help the scientist classify the two stars.
Answer:
Star A is a Neutron Star while Star B is a Red Giant
Explanation: Neutron star is a very hot star, very small in size and hence dim and is white in color. A neutron star results after a massive star goes supernova. It is primarily composed of neutrons packed in a small boundary.
star B would be a red giant. This is because, a red giant star is red in color, is very big in size, and has a low temperature. A red giant star is a towards the end stage of a small to an average mass star.
I think
Which process is responsible for producing eggs and sperm?
meiosis
sexual reproduction
asexual reproduction
mitosis
Answer:
meiosis
Explanation:
Please help thx!!!!!!!!
Answer:
It provides structre and support :)
Explanation:
A line graph shows?
A.changes in the dependent variable only
B.changes in the dependent variable only
C. how the dependent variable changes in response to the dependent variable
D. how the dependent variable changes on its own
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Describe some of the main geologic events occurring during the Mesozoic era. This would include formation of mountains, opening of oceans, crunching continents, volcanic activity, major deposition of sediments, major structures eroded, etc:
Answer:
the branch of science and technology concerned with the properties of metals and their production and purification.
Explanation:
How is the process of fertilization in animals like the process that takes place in plants?
Spores can become sperm that will fertilize the egg.
Self-fertilization is possible if no partner is available.
A sperm cell and an egg cell combine to form an embryo.
Sperm is encased in a grain of pollen to travel to an egg.
Answer:
Hope it helps :))
Explanation:
And i also hope you get it right ;))
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Our Earth includes a variety of precious natural resources that include sunlight, water, fossil fuels, and forests. Some resources are stored in different forms, which can be processed to obtain useful products, such as petroleum, minerals, or metals. In terms of energy resources, there are two types of natural resources that are used to generate energy: renewable resources, such as water, sunlight, and wind; and nonrenewable resources, such as such as coal, natural gas, or crude oil. The nonrenewable energy sources are widely used around the world. When fossil fuels are burned for energy, carbon dioxide (CO2) is released into the environment. Carbon dioxide is one of the greenhouse gases in the atmosphere that helps to keep the planet warm, as it traps the radiation coming from the Sun. Too much carbon dioxide in the atmosphere can retain high amounts of thermal energy and cause the temperature to rise, which can have devastating effects on the environment. In the last century, the level of atmospheric carbon has increased at an alarming rate.
The graph shows the increase in the concentration of carbon dioxide in the atmosphere since 1900.
QUESTION: Before the eighteenth century, coal was used by humans in many places on Earth for cooking and heating. In the eighteenth century, after the industrial revolution began, fossil fuels like coal were increasingly used to generate power and energy. Today, many manufacturers and nearly all forms of modern transportation depend on these fossil fuels. What effect has this human dependence on fossil fuels had on the world's climate? How has technology contributed to this effect?
Answer: They lead to increased levels of carbon dioxide and other greenhouse gases in the atmosphere which causes the greenhouse effect.
Renewable resource: Sunlight, water, wind,
Norenewable: coal, natural gas, oil
Since fossil fuels are located all over the world, it makes it much easier to create electricity from them than things that are hard to come by.
Explanation:
Hope this helps
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Answer:
Part a: C)
Part b: A)
Explanation:
a heterozygous (Rr) and a Homogenous (rr)
Part a: C)
There is only one out of 4 (Rr) so 1/4
A)
Answer:
C for part a
a for part b i think
Explanation:
Help 15 points
What 2 major air masses lead to the tornadoes in Tornado Alley?
Answer:
It's along the front between the two airmasses that most tornadoes form.
Explanation:
Answer: The land in the Great Plains is relatively flat, which allows cold dry polar air from Canada to meet warm moist tropical air from the Gulf of Mexico.
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Answer:
No lo sé, pero gracias por los puntos.
Explanation:
What are some important functions cells perform in the human body?
Answer:
1: Movement (muscle cells) 2: Conductivity (nerve cells) 3: Metabolic absorption (kidney and intestinal cells) 4: Secretion (mucous gland cells) 5: Excretion (all cells) 6: Respiration (all cells) 7: Reproduction (all cells) MedicTests.com.
Explanation:
what organ system is affected? in albinism
Answer:hair, eyes, skin,and vision
Explanation:
its an interruption im the function of the enzyme tyrosinase
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Correct Answers Only
Which is NOT an example of a structural adaption?
A. a pelican's pouch-like beak
B. Camouflaged seahorses
C. The migration of birds
D. dense fur on a brown bear
Answer:
D
Explanation:
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Instructions: Write a new argument that supports the sub claim you chose above. This argument will be the second part of the press release, so make sure it is clear and convincing. • Include evidence and explain how this evidence supports this sub claim. • Look back at your work from this lesson. • You may also want to use the Argumentation Sentence Starters for help with organizing your thinking and constructing your argument.
The subclaim is; Bacteria from the fecal transplant can help the patient’s body produce immune cells that kill invading bacteria.
Answer:if you raise the points to 25 i will do everything with evidence etc.
Explanation:
Ocean water is-
A. mixture
B. compound
C. element
D. fresh water
Why do Scientists think the fossil record is incomplete?
A. Fossils decompose over time.
B. The formation of fossils is rare.
C. Only organisms with hard parts become fossils.
D. There are no fossils before the Phanerozoic.
Answer:
A
Explanation:
Most organisms decompose. So like the mineralized bones themselves, the fossil record is an incomplete framework that scientists flesh out through additional methods. Exuse me if I am wrong.
_________ are the four largest satellites that orbit Jupiter
Answer:
Io, Europa, Ganymede and Callisto.
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A student at an exhibition looks at a model of Earth, as shown. The model is made using different colors to show water and land on the surface of Earth. The color green shows areas covered in land and blue shows areas covered in water. Each side of the model is shown.
The student learns that the water on Earth is stored in different forms. Water on Earth is broadly categorized into salt water and freshwater. The usability of water depends on the quantity available and its characteristics. The model shows the distribution of water on Earth in various reservoirs.
Question:The student claims there are large quantities of water immediately available for humans to drink on the surface of Earth. Is the claim given by the student correct? Use evidence from the graphs to describe why or why not.
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Answer:
the claim given by the student is false. the diagram shows that 3% of the total water on earth is fresh water. All the other water would have to be filtered and made safe to drink.
Explanation:
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