The principle that allows us to assign dates to events on the geologic time scale is radioactive decay. Therefore, option (C) is correct.
What is radioactive decay?This theory is based on the observation that certain isotopes of elements are inherently unstable and, as a result, decay over time, giving rise to the formation of new isotopes or elements. Scientists are able to determine the age of a sample by measuring the ratio of parent to daughter isotopes in the sample. This, in turn, enables them to assign dates to events on the geologic time scale.
The method of determining the age of rocks, minerals, and other geological materials is known as radiometric dating, and it is utilized extensively in the field of geology as well as in other earth sciences.
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Pls help with this question (I will mark brainliest)
Answer:
C. Physical, protein
Explanation:
I so sorry if I'm wrong
What is the shape of a skin cell that helps it create a protective layer? A. The cell is tapered at each end and allows them to fit together easily. B. The cell is long and rectangular so that they stack and make straight pathways into the body C. The cells are short and flat which make they easy to layer and overlap. D. The cells have no defined shape so that they move easily with the body.
The cells are short and flat which make they easy to layer and overlap and create a protective layer. thus option C is correct.
How skin cell get extracted?Primary skin cells of human or animal origin are extracted via the enzymatic and mechanical dissociation of dermal or epidermal tissue.
The cell of skin is short and flat.The shape of these cells enables a new barrier of three-way tight junction contacts to form between them and the neighboring cells in the stratum granulosum. After this barrier has formed, the upper cell leaves the stratum granulosum. thus option C is correct.
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What protects Earth's surface?
O the atmosphere
o the hydrosphere
O the geosphere
O the biosphere
Earth's surface is protected by the atmosphere that is the first option as It provides a shield from harmful radiation and meteors, regulates the planet's temperature, and provides the air we breathe.
The atmosphere is a thin layer of gases that surrounds the Earth. It's made up primarily of nitrogen (78%) and oxygen (21%), with trace amounts of other gases. The atmosphere protects the Earth's surface by blocking harmful solar radiation, such as ultraviolet rays, from reaching the surface. It also helps to regulate the Earth's temperature by trapping heat from the Sun, which keeps the planet warm enough to support life.
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true or false
almost all cells have a nucleus
Answer:
True
Explanation:
Almost all cells have a nucleus. Haemoglobin is red blood cell but has no nucleus, prokaryotes have plasmid and not a nucleus sooo... Yea
Which of the following activities is likely to have the highest impact on biodiversity? A. Copper mining in Chile. B. Large-scale deforestation of the Amazon and Congo basin tropical forests. c. Soil erosion on the slopes of the Rocky Mountains. D. Increased use of ethanol fuels in the United States.
Answer:
B
Explanation:
What is wrong with this picture? Why do I NOT believe these are the parents?
Identify three factors that could keep the human population from
reaching its carrying capacity.
Answer:
help
Explanation:
The four answers for a punnets square Zz, Zz, zz, zz what the the genotypes for the parents
Answer:
Zz and zz
Explanation:
A group of salamanders lives deep in the forest, where the ground is nice and moist, and there is a lot of shade from the sun.
In this scenario, which of the following is a biotic component?
a. the sun
b. soil
c. moisture (water) in the soil
d. salamander
Answer:
D. Salamander
Explanation:
*In addition to the bacterial, virus, fungus, some microorganisms live under the sea*what are they?
A microorganism (or microbe) is any microscopic living organism or virus, that is too small to see with the unaided human eye without magnification. Microorganisms are very diverse. They can be single-celled or multicellular and include bacteria, archaea, viruses and most protozoa, as well as some fungi, algae, and animals, such as rotifers and copepods. Many macroscopic animals and plants have microscopic juvenile stages. Some microbiologists also classify biologically active entities such as viruses and viroids as microorganisms, but others consider these as non-living.
Could it be possible to have the same species of penguin living in more than one geographic location? Why or why not?
Yes it should be possible to have the similar kind of species since they have adapted over time with respect to the new areas.
What is species?
It refers to the organism group where it should be reproduced in a natural way with one another and developed the fertile offspring.
It is considered as the the basic unit of classification and a taxonomic rank with respect to an organism along with the unit of biodiversity.
So yes it does contain the same kind of species.
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Why are the phosphorous and sulfur cycles considered to be sedimentary cycles? Use the word reservoir in your answer.
Answer:
The phosphorus cycle: is a sedimentary cycle (unlike carbon, oxygen, and nitrogen),Phosphorus enters the biosphere almost entirely from the soil through absorption by plant roots.
The sulfur cycle is the collection of processes by which sulfur moves between rocks, waterways
Explanation:
Sedimentary cycles are the ones in which the reservoir is the Earth's crust.
Hope this helps!!
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Answer:
New moon to full moon: waxing crescent, first quarter, waxing gibbous,
Full moon to New moon: Waning gibbous, Third quarter, Waning crescent,
Explanation:
Answer:
Going from a New Moon to a Full Moon: Waxing Crescent, First Quarter, Waxing Gibbous
Going from a Full Moon to a New Moon: Waning Gibbous, Third Quarter, Waning Crescent
Explanation:
How will the Benedict solution tell you there is sugar present?
Answer:
Benedict's solution can be used to test for the presence of glucose in urine. ... When reducing sugars are mixed with Benedicts reagent and heated, a reduction reaction causes the Benedicts reagent to change color. The color varies from green to dark red (brick) or rusty-brown, depending on the amount of and type of sugar.
Explanation:
Explain how manganese and iron ores commonly form.
Answer:
The iron ore deposits began forming when the first organisms capable of photosynthesis began releasing oxygen into the waters. This oxygen immediately combined with the abundant dissolved iron to produce hematite or magnetite. ... Steel Mill: Most iron ore is used to make steel.
The metal is obtained by reducing the oxide with sodium, magnesium or aluminium, or by the electrolysis of manganese sulfate. Manganese nodules have been found on the floor of the oceans. These nodules contain about 24% manganese, along with smaller amounts of many other elements.
Which of the following statements about the genetic code is true?
Answer:
where are the statements
Explanation:
Answer:genetic code refers to all the genetic information we inherit from our parents or pass it onto our offspring.
Explanation:
As you become an adult, the cells in your body
1 keep dividing
2 stop dividing
3 stop changing
4 can't repair themselves
True or false? Living things exist alone and have no interaction with other living things or their
environment.
Answer:
False, Living things exist with other living things and frequently interact with other living things.
Please help will mark brainlest
What is the steps of the carbon cycle?
Explanation:
.carbon moves from atmosphere to plants
.carbon moves from plant to animal
.carbon moves from living things to the atmosphere
. carbon moves from fossil fuels to the atmosphere when fuels are burned
. carbon moves from atmosphere to ocean
Question 1
5 pts
What are two factors that increase the genetic variation in a population?
O Mutations and mitosis
O Budding and meiosis
O Crossing over and mutations
O Crossing over and mitosis
Answer:
The second one and the third
Explanation:
I need help, please.
Answer:
Explanation:
I dont get the question its just a chart
Special cells in the body are responsible for gathering information about the body's environment. These cells are called receptor cells. The information gathered by receptor cells is encoded as electrical signals that travel along the body's nerve cells. The brain and spinal cord then process the electrical signals to determine how the body should respond.
Suppose information gathered by a group of receptor cells has just been processed by the nervous system. Which of the following could happen next?
Answer:
A reflex action
Explanation:
Answer:
The information could trigger an immediate behavior. The information could be sent back to the receptor cells.
Explanation:
Brainiest please :D
can anyone answer these questions for me?
Answer: it’s blurry
Explanation:
Question 4: Here is a picture of Mr. Dacy's family. Given what you know about genes
and dominance, how is it possible that Mr. Dacy's son Isaac is blond?
Which most likely happens to the ovary of a flower after it is fertilized?
a. It produces pollen.
b. It grows into a fruit or vegetable.
c. It grows new sepals to attract insects.
d. It completes photosynthesis.
Answer:
It grows into a fruit or vegetable.
what biome receives a lot of rain, moderate temperatures, and a long growing season
A. coniferous forest
B. taiga
C. deciduous forest
D. grassland
Biome that receives a lot of rain, moderate temperatures, and a long growing season is grassland. Thus, option D is correct.
What is ecosystem?Ecosytem is defined as a community that is biological by nature and the organism in that community attract with each other as well as their physical environment. Ecosystem is consist of both biotic as well as abiotic factor. The living components of ecosystem comes in category of biotic factor and non living components of ecosystem comes in category of abiotic factor.
Biodiversity is all the different kinds of life living in a particular area like the varity of animals, plants, fungi and microorganisms like bacteria and virus that plays a major role in framing of natural world usually three levels of biodiversity are observed and these are genetic species, and ecosystem diversity.
Biodiversity is very important for the process that's support all life present on earth including human.
Therefore,Biome that receives a lot of rain, moderate temperatures, and a long growing season is grassland. Thus, option D is correct.
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Take a moment to examine these images of cells and their surrounding membranes. You already know that the cell membrane protects the cell from the external environment and controls what substances enter and exit the cell. As you study the pictures, consider the following questions: Which of the two cells do you think is more efficient at transporting materials through the cell? Why?
Answer:
Where is the pic.........
Which of the following would not very in a diet between someone from the Ecuador and someone from China
A. Major nutrients
B. Kinds of carbohydrates
C. Amount of food consumed
D. All of these would vary
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Please help me. I'll give you the brainliest.
Melinda and Bart are sitting beside each other in the third car of a roller coaster.
From whose reference point are Melinda and Bart moving away from the observer?
A. a person sitting in the first car of the roller coaster
B. a person standing on the ground behind the roller coaster
C. a person sitting in the last car of the roller coaster
D. a person standing on the ground in front of the roller coaster
Answer:
The answer option that you are searching for today is the option "B."
From the reference point of a person standing on the ground in front of the roller coaster, Melinda and Bart are moving away from the observer. Therefore, option (D) is correct.
What is the reference point?A reference point is a fixed location or object used to determine the position, speed, and direction of motion of an object or person in motion. It is used in physics and other sciences to describe the motion of objects.
This is because the roller coaster is moving forward along the track, and the third car, where Melinda and Bart are sitting, is behind the first and second cars. As the roller coaster moves forward, the distance between the third car and the person standing on the ground in front of the roller coaster increases, indicating that Melinda and Bart are moving away from that observer. Therefore, the correct option is D, "a person standing on the ground in front of the roller coaster."
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what is the ozone layer
The layer of the Earth below the crust
The layer of the atmosphere that we breathe
A portion of the Earth's atmosphere that protects the Earth from radiation
All of the above
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Answer:
A portion of the Earth's atmosphere that protects the Earth from radiation