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Absolute Dating
AKA. RADIOMETRIC DATING
We can learn about the past by studying the present.
The Principle of Uniformitarianism states that current geological processes are the same processes that were at work in the past. This principle was proposed by Charles Lyell in the 1800's
Absolute Dating
Involves finding the absolute age (actual age) of a rock or fossil.
Elements that emit particles and energy are radioactive.
As radioactive elements emit particles and energy, they form new isotopes or elements.
Answer:
radioactive
Explanation:
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HELP ASAP!! 3 sentences please!!!
what is the structure and functions of RNA?
Answer:mrna Serves as intermediary between DNA and protein; used by ribosome to direct synthesis of protein it encodes
Trna Carries the correct amino acid to the site of protein synthesis in the ribosome
Explanation:
In a well-structured paragraph, evaluate the experimental design of the investigation into the osmolarity of different types of apples for adequate controls and measurement techniques .
Answer:
To determine the osmolarity of two types of apples in this experiment they use four sucrose solutions and twenty-four apple cylinders. They let these cylinders stand overnight in separate beakers of sucrose solutions, and repeat the procedure for the second variety. For the first variety, they record the temperature for the sucrose solution and remove the core to determine their combined mass. Then they will record the final masses and calculate percent change by using the percentage change in mass formula. After, they repeat these same steps for the second variety.
Explanation:
The higher the beanbag rises, the greater the
Answer:
Kinetic energy??
Explanation:
If animal cells do not have chloroplasts to produce glucose, how do animal cells get the sugar they need for energy ?
Answer:
Animal cells get their energy from cellular respiration, turning it into ATP(adenosine triphosphate).
Explanation:
In short why is homeostasis so important for survival
Answer:
Homeostasis is the self regulating mechanism.
for example, It keeps the stable environment within the body. i.e., eventhough our surrounding environment is very chill our body temperature won't change.
Explain how Earth’s atmosphere affects solar radiation
Answer:
Explanation: Three atmospheric processes modify the solar radiation passing through our atmosphere destined to the Earth's surface. These processes act on the radiation when it interacts with gases and suspended particles found in the atmosphere.
The three main atmospheric components that absorb radiation are ozone, carbon dioxide, and water vapour. The sun's UV energy, which is detrimental to the majority of living organisms, is absorbed by ozone. Without the atmosphere's protective barrier, sunlight would cause our skin to burn.
What Earth’s atmosphere affects solar radiation?29% of the solar energy that strikes the Earth is returned to space as a result of reflection, largely from clouds but also from other brilliant surfaces and the atmosphere itself. Approximately 23% of the energy entering the environment is absorbed by atmospheric gases, dust, and other particles.
Therefore, The solar radiation that enters our atmosphere and is directed toward the Earth's surface is altered by three atmospheric processes. When radiation interacts with gases and suspended particles in the atmosphere, several processes impact the radiation.
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ATP and photovoltaic cells are similar because
A. they are both key components of plant cells.
B. they both produce chemical and electrical energy.
C. they are both key components of solar panels.
D. they both use energy from the sun to separate electrons from atoms.
Answer:
D. They both use energy from the sun to separate electrons from atoms.
Explanation:
In the light-dependent reactions, energy absorbed by sunlight is stored by two types of energy-carrier molecules: ATP and NADPH.
Photovoltaic systems use the photons produced by sunlight to generate direct current (DC) electricity. When the photons hit the panel they are absorbed by the panel's semiconducting silicon material.
Which statement correctly describes how an organelle contributes to the ability of the cell to perform life functions?
The lysosomes digest food and break down cell parts when they die and the cell membrane prevents all harmful substances from entering the cell. So, the correct options are C and D.
What is Cell?Cell is defined as the smallest unit that can live on its own and that makes up all living organisms and body tissues where the cell has three main parts: cell membrane, nucleus, and cytoplasm. The cell membrane surrounds the cell and controls the movement of substances into and out of the cell.
A single cell is itself an organism. For example, yeast or bacteria. Other cells acquire specialized functions soon after they mature which acquire unique functions when they mature. They cooperate with other cells and become the building blocks of multicellular organisms such as humans and animals.
Therefore, the correct options are C and D.
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Your question is incomplete, most probably the complete question is
Which statement correctly describes how an organelle contributes to the ability of the cell to perform life functions?
A. The cytoplasm stores the genetic instructions for the cell.
B. The mitochondrion responds to chemical messages in the cell.
C. The lysosomes digest food and break down cell parts when they die.
D. The cell membrane prevents all harmful substances from entering the cell.
Which of the following is an observation?
a. You record the air temperature every day for a week.
b. You propose that a cold front is approaching.
c. You hypothesize that the temperature will increase tomorrow.
d. You conclude that the season is changing.
Answer:
a. You record the air temperature every day for a week.
Explanation:
Recording air temperature every day for a week can be classified as making an observation.
Observation is a part of the scientific method. It is a basically a way of collecting data.
During observation, our senses can be used or instruments. Depending on the nature of the study, specialized instruments helps to bridge the limitations of our senses. A good scientist is a keen observer. Making a record of air temperature usually by using a thermometer is a way of carrying out observation.When you record air temperature, you are making an observation.
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Of the visible light spectrum, the rate of photosynthesis is greatest under?
A) red light
B) blue light
C) orange light
Answer:
A) red light
Explanation:
Blue light is absorbed not only by chlorophyll, but also by carotenoids, and some carotenoids are not in the chloroplasts; further, carotenes and xanthophylls make up the carotenoids. Carotenes do not transfer absorbed energy efficiently to chlorophyll, and thus some part of absorbed blue light is not going to photosynthesis. On the other hand, all of red light is absorbed by chlorophylls and used effectively.
The rate of photosynthesis is greatest under red light.
Red and blue light are both absorbed by the xanthophylls and carotenes. The absorption of blue light is higher than that of red light in the xanthophylls and carotenes.
However, red light is solely absorbed in the chlorophyll and not blue light. As such, the absorbed red light is utilized for photosynthesis directly.
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How is the cell membrane like a mixture?
Answer:
There are many components that make-up a cell membrane including a mixture of lipid, proteins, molecules, and carbohydrates,
In a field water flows down through the soil and then throw a layer of loose rocks before the flow stops. what type of material did the water most likely encounter when it stopped
A: A lawyer of granite
B: another soil layer
C: a lawyer of rocks with cracks
D:another lawyer with loose rocks
Answer:
B: another soil layer
Answer:
a layer of granite
Explanation:
That's the correct answer on edge.
what is the living planet called?
Which living planet? Do you mean Earth or what ever else?
Answer:
Earth
Explanathope its the awnser you need
How much energy is transferred up through the trophic levels from primary producer to
primary consumer?
Answer:
On average, only about 10% of the energy stored as biomass in one trophic level—e.g., primary producers—gets stored as biomass in the next trophic level—e.g., primary consumers. Put another way, net productivity usually drops by a factor of ten from one trophic level to the next.Label the steps for protein synthesis in order, beginning with the first step.
Once the protein is made, the gene for a particular trait is expressed.
mRNA joins the ribosome, and the anticodons from tRNA join mRNA to form a chain of amino acids.
RNA polymerase unzips DNA and free RNA nucleotides join DNA to form mRNA.
A chain of amino acids is formed from peptide bonds, creating a protein.
mRNA is transported from the nucleus of the cell to the ribosomes of the cell.
Answer:
1: Step 5
2: Step 3
3: Step 1
4: Step 4
5: Step 2
Explanation:
Answer:
✔ step five
Once the protein is made, the gene for a particular trait is expressed.
✔ step three
mRNA joins the ribosome, and the anticodons from tRNA join mRNA to form a chain of amino acids.
✔ step one
RNA polymerase unzips DNA and free RNA nucleotides join DNA to form mRNA.
✔ step four
A chain of amino acids is formed from peptide bonds, creating a protein.
✔ step two
mRNA is transported from the nucleus of the cell to the ribosomes of the cell.
Explanation:
antype of cell which carries at a particular function is known as
Answer:
tissues
Explanation:
How are the phases of Venus different than the phase of our moon?
Answer:
Venus is an inferior planet. Because Venus is so close to the Earth and lies nearer to the Sun, it shows phases, similar to the way the Moon does. It also is closer to us near inferior conjunction (bigger) than at superior conjunction (smaller), and so its angular size changes as the distance between us varies.
Explanation:
How might stem cells be a solution to paralysis caused by spinal injuries?
Answer:
transplantation of stem cells or stem-cell-derived cells may contribute to spinal cord repair by: Replacing the nerve cells that have died as a result of the injury; ... Preventing spread of the injury by suppressing the damaging inflammation that can occur after injury.
Explanation:
Characteristics of plant cells include which of the following? Select ALL that apply:
1. cell plate in cell division
2. cleavage furrow
3. large hypertonic vacuole
4. no chlorophyll or chloroplasts
5. no cell wall, only plasma membrane
Answer:
3. large hypertonic vacuole
1. cell plate in cell division
4. no chlorophyll or chloroplasts
Explanation:
E If you increase the surface area of a rock, how will it affect the rate at which it weathers? It will weather more quickly. b. It will have no effect because surface area is not a factor in weathering. It will weather more slowly. d. It will have no effect because a rock does not have a surface area. C.
Answer:
it will weather more quickly
Answer:
It's A
Explanation:
Xylem tissue and phloem tissue make up a plant's transport system, A. true B. false
Answer:
true.
Explanation:
Which biomolecule is important in storing and passing genetic information to our offspring?
Answer:
Nucleic Acids.
Explanation:
Nucleic acids pass off genetic information (found in the nucleus) to offsprings
Why the tropical forest has a more lush plant life than the tundra in regards to how fast things decompose.
Answer:
Because of Nitrogen
Explanation:
Nitrogen seems to be much difficult for plants to acquire because they can only consume nitrogen when it is combined with oxygen or hydrogen, which is why tropical forests have a lusher plant growth than tundra.The decomposition process is the secret to maintaining the nitrogen cycle going since the bulk of fixed nitrogen arrives from decaying organisms and faces being broken down by bacteria.Why does a lunar eclipse effect a larger area?
Answer:
A lunar eclipse occurs when the Moon moves into the Earth's shadow. This can occur only when the Sun, Earth, and Moon are exactly or very closely aligned (in syzygy) with Earth between the other two, and only on the night of a full moon. The type and length of a lunar eclipse depend on the Moon's proximity to either node of its orbit.
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at what point will the pH of the ocean start to decrease?
what is frictional force?
Which type of molecule makes up the double layer of a cell membrane?
A)carbohydrate
B)lipid
C)nucleic acid
-D)protein
Answer:
B. Lipid
Lipids are molecules that include fats, waxes, and some vitamins, among others. Each phospholipid is made up of two fatty acids, a phosphate group, and a glycerol molecule. When many phospholipids line up, they form a double layer that is characteristic of all cell membranes.
Answer:
b. lipid
Explanation:
The phosphor lipid of cell membrane are arranged which are called lipit bilayer.
Which lists metric units, in order, from smallest to largest?
kilogram, hectogram, decagram
decagram, decigram, centigram
milligram, centigram, decigram
decagram, hectogram, milligram
Answer:
milligrams, centigrams, decigrams, kilograms, decagram,hectogram
Explanation:
Answer:
milligram, centigram, decigram
Explanation:
What is the y-axis of this chart
Answer:
In this case, the temperature is supposed to go in the y-axis whereas the rates are on the x-axis.
given the following DNA strand which of the following is it’s complementary MRNA? GGACTGATT
A. C C U G A C U A A
B. C C T G A C T A A
C. G G A C T G A T T
D. T T A G T C A G G
The following DNA strand "GGACTGATT" has the complementary mRNA strand "CCUGACUAA". Thus, the correct option is A.
What is mRNA?An mRNA is a type of RNA which is found inside cells. mRNA is also known as messenger RNA. The mRNA molecules carry genetic information which is required to make proteins in the cell. They carry the information from DNA in the nucleus of the cell to the cytoplasm where the proteins are synthesized.
The mRNA synthesized complementary to the sequence of DNA strand can be determined. As A base pairs with U and vice versa and C base pairs with G and vice versa. Thus, the sequence of mRNA synthesized from the DNA sequence "GGACTGATT" will be "CCUGACUAA".
Therefore, the correct option is A.
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