12. A fossil was found in a sedimentary rock layer. The igneous layer directly above
the sedimentary layer was analyzed for radioactive uranium. You found equal
amounts of uranium and lead in the igneous sample. This means that the
relative / absolute age of the igneous layer is 704 million years, and the
age of the fossil in the sedimentary rock layer below is older / younger than
704 million years.

12. A Fossil Was Found In A Sedimentary Rock Layer. The Igneous Layer Directly Abovethe Sedimentary Layer

Answers

Answer 1

A fossil was found in a sedimentary rock layer. The igneous layer directly above the sedimentary layer was analyzed for radioactive uranium. You found equal amounts of uranium and lead in the igneous sample. This means that the absolute age of the igneous layer is 704 million years, and the age of the fossil in the sedimentary rock layer below is older than 704 million years.

Beds or strata are the layers in which sedimentary rocks are deposited. A layer of rock with a consistent lithology and texture is referred to as a bed. Sedimentary layers are deposited on top of one another to create beds. Bedding refers to the pattern of beds that define sedimentary rocks.

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Related Questions

Put the following events of translational elongation (the stage in translation that occurs after initiation) in the order that they occur, beginning with the first step at the top.
1. The ribosome moves down the mRNA by one codon, and a tRNA carrying the third amino acid comes into place.
2. After the first amino acid has been brought to the ribosome, a tRNA carrying the second amino acid of a protein binds to the second codon.
3. A covalent bond forms between the first and second amino acids.
4. The ribosome releases the first tRNA.
5. The ribosome releases the second tRNA.
6. A covalent bond forms between the second and third amino acids.

Answers

The following events of translational elongation (the stage in translation that occurs after initiation) in the order that they occur, beginning with the first step at the top.  A covalent bond forms between the first and second amino acids.

At some stage in translation elongation, the ribosome ratchets along its mRNA template, incorporating each new amino acid and translocating from one codon to the next. The elongation cycle requires dramatic structural rearrangements of the ribosome.may additionally nine, 2014

Translation elongation calls for particular aminoacyl TRNAs being escorted to the ribosome with the aid of GTP-coupled elongation factor. Elongation calls for movement alongside the ribosome-coupled mRNA, three nucleotides at a time to add amino acids which have been certain to TRNAs.

In the elongation step, the extending of the amino acid sequences and the formation of the amino acid chain is formed. This step is one of the primary and larger steps in translation wherein some of amino acids are delivered to the chain and related collectively with the aid of peptide bonds to form polypeptide bonds.

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13) Atoms bond with other atoms when they need to fill their shell

Answers

Atoms bond with other atoms when they need to fill their shell is true .

What is atom ?

When two atoms share a pair of electrons, covalent bonding results. In order to increase their stability, which is attained by forming a complete electron shell, atoms will covalently connect with one another. Atoms can stabilize themselves by filling up their outer electron shell by sharing their outermost (valence) electrons.

Atoms, which are very little particles of matter, are what define a chemical element specifically. The core nucleus of an atom is surrounded by one or more negatively charged electrons.

ATOM BOND :

Whatever atoms the shared electrons originally belonged to or how many electrons are involved, a bond is simply the sharing of electrons between two or more atoms to satisfy their demand for an unoccupied final shell.

Hence, your statement about atom is True .

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Which of the following is
true about bacteria?
A. They lack DNA.
B. They are single-celled organisms.this
C. They have membrane-bound organelles.
D. They are eukaryotes.

Answers

B is the answer I checked
B. They are single celled organisms (:

what is a good answer to ape theory

Answers

We do share a common ape ancestor with chimpanzees. It lived between 8 and 6 million years ago. But humans and chimpanzees evolved differently from that same ancestor. But we are not descended from monkeys or any primate living today

Hope this helps:)

7. Which landform is the result of glacial erosion?
A. a horn
B. a moraine
C. an outwash plain

Answers

Answer:

i believe its  A.horn

Explanation:

hope this helps ya;)

Which of the following is
TRUE about viruses?
A. Viruses CANNOT be cured by
antibiotics. This
B. Viruses are easily cured by
antibiotics.
C. All viruses can be cured by
antibiotics.
D. Many viruses are able to be cured
with antibiotics.

Answers

Answer:

A. Viruses CANNOT be cured by

antibiotics

Explanation:

Answer:

a) Viruses cannot be cured by antibiotics.

Explanation:

"Viruses cannot be cured by antibiotics" is true about viruses. Because, the antibiotics can only cure bacterial diseases. Hence, the option (a) is the correct answer.

Cell membranes are made mostly of _____.

Group of answer choices

A. oxygen

B. phospholipids

C. sugar

D. water

Answers

Answer:

B. phospholipids

Answer: Phospholipids

Explanation: Phospholipids are a major component of cell membranes. It's also known as a lipid bilayer.

In addition to seeds, which of the following characteristics is unique to the seed-producing plants?
A) sporopollenin
B) lignin present in cell walls
C) pollen
D) use of air currents as a dispersal agent
E) megaphylls

Answers

pollen is unique to the seed producing plants

As a result of an action potential, AcH is released from the axon terminal and attaches to receptors on the motor end plate. Sodium rushes in the T-tubules and all the steps occur until the muscle contracts in the leg and carry out the command transported by the motor neuron. Which gray horn is the cell body of the motor neuron located? Infer and explain if this is a positive or negative feedback

Answers

Acetylcholine (ACh), a chemical transmitter, is released into the synaptic cleft. ACh diffuses through the postsynaptic or post junctional membrane and binds to specific receptors there.

What is chemical transmitter?

Chemical transmitter is defined as a signaling substance that a neuron secretes in order to influence another cell across a synapse. Typically, a transmitter transforms the sensor's output into a signal level fit for a controller's input.

Exercise causes the skeletal muscles to contract and alter. Acetylcholine, a neurotransmitter, is produced from nerve endings and binds to receptors called AChRs on the surface of muscles in (A). Sodium channels activate as a result of the subsequent depolarization, triggering an action potential that travels throughout the cell.

Thus, Acetylcholine (ACh), a chemical transmitter, is released into the synaptic cleft. ACh diffuses through the postsynaptic or post junctional membrane and binds to specific receptors there.

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In a particular strain of mice. Fur coat color is either black or brown, where black
(B) is dominant to brown (b). A homozygous dominant mouse mates a mouse with
brown fur.
What are the genotypes of the two individuals?
What proportion of their offspring will have black fur?

Answers

BB or Bb is the genotype of the two individuals. More than 90% proportion of their offspring will have black fur.

Black mice must have at least one B allele since the color is dominant. Either BB or Bb could be their genotype.

Because every offspring will have at least one dominant allele for black fur, which will outweigh any allele for brown fur, it is expected that all offspring will have black fur, so the proportion will be more than 90%.

The mix of genes found in the sex cells or gametes (ova and sperm) that were used in a child's conception determines the genotype of that child. From each parent came one sex cell. The gene for each attribute is often only present in one copy in sex cells.

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Temperature below the freezing point of water

Answers

The freezing point of water is 32 degrees

Directional Terms Please Im not good at biology could anyone help me pls?

Answers

Answer: c

Explanation:

cause

A certain type of specialized cell contains an unusually large amount of rough endoplasmic reticulum (ER). Which of the following functions is this cell type most likely specialized to perform?
A. The production and secretion of steroids
B. The destruction of toxic materials produced in other cells of the organism
C. The synthesis of polysaccharides for energy storage
D. The production and secretion of proteins

Answers

A certain type of specialized cell contains an unusually large amount of rough endoplasmic reticulum (ER). Which of the following functions is this cell type most likely specialized to perform?

A. The production and secretion of steroids

B. The destruction of toxic materials produced in other cells of the organism

C. The synthesis of polysaccharides for energy storage

D. The production and secretion of proteins

Hope this helps :)

what is the location of most of the organelles and where most of the cell processes take place?

Answers

The Cytoplasm is the location of the most organelles where most cell processes take place.

Answer:

the cytoplasm

Explanation:

A
B
Which type of bacteria
stain purple during Gram
staining?
Gram-negative bacteria
Gram-positive bacteria this

Answers

Answer:

b) Gram-positive bacteria

Explanation:

Gram-positive bacteria stain purple during Gram staining. Gram-negative bacteria turns into red (or) pink. Therefore, the option (b) is the correct answer.

Which describes a substance that is
pure and made of only one type of
atom throughout?
A. compound
B. molecule
C. isotope
D. element this

Answers

Answer:

element

Explanation:

An element is a substance that consists of only one type or kind of atom. An element is a pure substance as it cannot be broken down or transformed into a new substance even by using some physical or chemical means.

Answer:

d) Elements

Explanation:

An element is a substance that is pure and made of only one type of atom throughout. Hence, the option (d) is correct answer.

How does a cell know when to divide, when to duplicate its chromosomes, or when to enter another stage of the cell cycle.

Answers

A cell knows when to divide when to duplicate its chromosomes, or when to enter another stage of the cell cycle by communicating with each other using chemical signals from special proteins called cyclins.

Cells control their division by exchanging chemical signals via unique proteins called cyclins with one another. These signals function as switches that inform cells when to begin dividing and then when to stop.

A cell has to go through a number of checkpoints in order to transition from one stage of its life cycle to the next. Specialized proteins inspect each checkpoint to see if the required circumstances are there. If so, the cell can move on to the following stage.

In order for each new cell to include all of the necessary genetic information, the genes must also produce copies of themselves prior to cell division.

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The Biomes of Bolivia and the world​

Answers

The Biomes of Bolivia and the world

Biomes are characterized by grouping ecosystems with similar characteristics, in climate, fauna, flora and soil.

¿What is the Biomes of Bolivia and the world?

For Biomes are characterized by grouping ecosystems with similar characteristics, in climate, fauna, flora and soil.

Kinetic energy depends on
O Heat and pressure
Density and volume
O Mass and speed
Position and height
22:

Answers

Mass and speed is what the kinetic energy depends on

How has the flow of carbon changed between the atmosphere and plants?

Answers

Answer:

Plants on land have taken up approximately 25 percent of the carbon dioxide that humans have put into the atmosphere. The amount of carbon that plants take up varies greatly from year to year, but in general, the world's plants have increased the amount of carbon dioxide they absorb since 1960

Explanation:

For example, in the food chain, plants move carbon from the atmosphere into the biosphere through photosynthesis. They use energy from the sun to chemically combine carbon dioxide with hydrogen and oxygen from water to create sugar molecules.

I just searched up Hope it helps!

What is cystic fibrosis at least five 5 conceptos

Answers

Answer: There are five concepts of cystic fibrosis. They have

People with CF can't be together.CF and Tay Sachs are tied to fatal Jewish genetic diseases.Our skin is super salty.We are master deceptors.The nickname for CF is 65 roses.

Explanation:

1. People with CF can't be together.

              The thick, sticky mucus that builds up in our lungs functions like silly puddy. So, when bacteria enter our lungs, they tend to stick around forever whereas healthy people’s immune systems can fight them away. As a result, people with CF harbor dangerous bacteria in their lungs, which are contagious only to other people with CF or compromised immune systems.

The excellent news is CF is not at all contagious or dangerous to healthy people. The bad news is the cross-infection risks mean people with CF are advised not to be within 6 feet of one another.

In response, we’ve formed thriving online communities so that we can benefit from information sharing and support, but there’s no denying that virtual connections can never replace in-person ones. For me, this is one of the hardest things about CF.

2. CF and Tay Sachs are tied as fatal Jewish genetic diseases.

                   When you think of fatal Jewish genetic disease, you think “Tay Sachs,” right? But the truth is that approximately one in 25 to 27 Ashkenazi Jews is a carrier of CF, making it just as prevalent as Tay Sachs. That’s why Emily’s Entourage is on a mission to get the word out to the Jewish community that CF is their disease, too.

3. Our skin is super salty.

           

                          Back in the day, salty skin was the hallmark characteristic of CF. The reason is that a faulty salt chloride channel causes people with CF to excrete too much salt. In other words, when we sweat, we lose too much salt, which puts us at an increased risk of dehydration.

If it’s hot outside and you lick the skin of someone with CF (with permission, of course!), you’ll taste how salty they are! You may even see salt crystalize on their skin.

To this day, the diagnostic test for CF is called a “sweat test” because it measures the salt chloride levels in your sweat.

4. We are master deceptors.

                       CF is an invisible disease, which means that, as sick as our lungs and other organs are on the inside, you can’t tell from the outside. Just from looking at me, you’d probably never guess that I have less than a third of the average lung function or that I’m teetering on the brink of lung transplant evaluation.

This is a blessing and a curse. The downside is that it is often hard to appreciate how sick we feel and how difficult everyday tasks are because we look so deceivingly healthy on the outside. But on the flip side, it’s nice not to wear our disease on our sleeve, so to speak, so people see more than just our disease when they look at us. Plus, looking healthy rather than sickly is generally a good thing.

5. The nickname for CF is 65 roses.

                      Way back when children with CF had trouble pronouncing “Cystic Fibrosis.” So, they came up with a nickname with a similar ring: sixty-five roses. Roses certainly evoke a much lovely image than a life-threatening disease. In fact, the nickname stuck so much that it is still used today and roses have become an unofficial symbol of CF.

Which rate of evolution BEST describes a fossil record that shows many different forms of the same organism over a long period of time?

Answers

Sedimentary rocks and fossils  are the best evolution rate that describes a fossil record from many different forms of the same organism over a long period of time.

The highly organized order in which fossils are discovered in sedimentary rock layers is known as the fossil record.

It suggests that at least 3.5 billion years ago, there were living forms on Earth.

Fossils, which also show how different species evolved, provide undeniable evidence that ancient organisms were unique from those that exist now. The comparative anatomy of modern animals and fossils make up the morphological, or anatomical, record.

what is sedimentary rocks?

Sedimentary rocks are constructed from pre-existing rocks or remains of extinct creatures. They emerge from deposits that amass on the Earth's surface. Identifiable bedding or layering is typically present in sedimentary rocks.

Therefore, Sedimentary rocks and fossils  are the best evolution rate that describes a fossil record from many different forms of the same organism over a long period of time.

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Which of these processes is required for a reaction but not for a reflex?
motor neuron
interneuron
sensory receptor
integration in the cerebrum

Answers

Answer:

integration in the cerebrum

Explanation:

this is because the reflex arc, which controls the reflex action,occurs in the spinal cord.The ascending neuron only picks the information to inform the brain of what has happened, after it has actually happened

Lollllllllllllolololololol HELPP

Answers

Answer: Chlorophyll

Explanation:

Chlorophyll's job in a plant is to absorb light—usually sunlight. The energy absorbed from light is transferred to two kinds of energy-storing molecules. Through photosynthesis, the plant uses the stored energy to convert carbon dioxide(absorbed from the air) and water into glucose, a type of sugar.

the process of oxygen depletion due to nutrients such as nitrogen and phosphorous entering marine systems and causing algal blooms is called _______.

Answers

Answer:

the process of oxygen depletion due to nutrients such as nitrogen and phosphorous entering marine systems and causing algal blooms is called Eutrophication

Eutrophication is the oxygen depletion process that occurs due to nutrients such as nitrogen and phosphorus in the marine system resulting in algal blooms.

Eutrophication is a main problem in the aquatic ecosystem. It occurs when the lake or estuaries are rich in nutrients like nitrogen and phosphorus.

The deposition of these nutrients in water bodies occurs because of the surface runoff of agricultural lands.

These nutrients are required by microorganisms, phytoplankton, and algae for their growth. So they consume these nutrients and grow enormously and cover the lake as a green meadow or algal bloom.

So the sunlight or oxygen can't reach underwater. As a result, the aquatic organisms begin to die.

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Which example displays a type of point source pollution?
• A.
rainwater carrying toxic chemicals and debris to a river
B.
melted snow mixed with debris flowing into a city
C.
untreated water from a factory flowing into a lake
D.
smoke released by trucks
E
rainwater mixing with garbage on the sidewalks of a street

Answers

The example displaying a type of point source pollution is: (C) untreated water from a factory flowing into a lake

Pollution is the presence of contaminants in the environment. The pollution can be of air, soil, water, or even noise. The major cause of pollution is the human action and synthetic substances but some natural products can also be the causing agent of pollution.

Point source pollution is the one spread through one single source like pipe, ship or factory smokestack that pollutes a larger area. Like untreated water from factories can pollute the entire water body. Similarly chimney smoke of industries can pollute the air of whole city.

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5. A man with group A blood marries a woman with group B blood. Their child has
group O blood. What are the genotypes of these individuals? What other
genotypes and in what frequencies, would you expect in offspring from this
marriage.

Answers

If a child with blood group O is born to the parents with blood group A of father and B of mother, then their genotype will be [tex]I^{A} I^{i}[/tex] and [tex]I^{B} I^{i}[/tex] respectively.

Blood group is the type antibodies and antigens present in the blood of the individual. These antibodies and antigens are heritable and transferred from the parent to the child in the form of genes. There are 4 types of blood groups. These are: A, B, AB and O.

Genotype is the genetic composition of an individual. It can off the whole genome or for a single trait. When the genotype [tex]I^{A} I^{i}[/tex] and [tex]I^{B} I^{i}[/tex] are crossed they have the potential to give birth to a child with genotype [tex]I^{i} I^{i}[/tex], and this justifies the birth of child with blood group O.

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Unlike perennials, annuals
A. must be grown in handing baskets
B. Cannot be grown in the sun
C. Need plenty of shade
D. Finish their life cycles in a year

Answers

D. Finish their life cycles in a year.

digestion of fatty acids takes place in which organelle?

Answers

Digestion of fatty acids takes place in the peroxisome.

Select all that apply.
Proteins____

A. contain carbon, hydrogen, oxygen, and nitrogen.

B. consist of amino acids

C. are derived from fruits and vegetables

D. are part of antibodies

Answers

Answer: the answer is option are option B and C.

Explanation: Proteins are made up of bulk units of amino acids progressively in our body, which are connected to each other as one long chain.

there are 20 different amino acids that compose the proteins, they can be derived from fruits and vegetables.

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What is the main idea of the passage? Aquaculture is the science and practice of growing fish for food that is gaining popularity. Although aquaculture has serious consequences, it can help the world meet its growing demand for seafood. China leads the world in aquaculture, but the industry is growing in many other countries. Aquaculture is an ancient practice that has been used all over the world for thousands of years. Reading Passage open the passage in a new window Aquaculture: Hatching a Solution to World Hunger? by Anna Thomas 1 If you enjoy eating baked fish, shrimp gumbo, crab cakes, or boiled lobster, you're in luck. Nutritionists say that seafood is healthier to eat than other kinds of animal protein. It is low in fat and cholesterol, and high in the omega-3 oils that promote both heart health and brain development. Current United States Department of Agriculture guidelines suggest that Americans eat two to three seafood meals a week ("Let's Eat" 2). Unfortunately, most Americans do not consume that amount of fish. 2 However, even if Americans were willing to eat more fish, would the world's seas be able to provide it? Many places in the world are already fished to their limits, and many native fish populations are dwindling to record lows. In order to meet even current global consumption rates, experts at the United Nations Food and Agriculture Organization estimate that the world will need another forty million tons of seafood per year by 2030 ("Basic Questions" 4). Where will all this fish come from? Many people think that the answer is aquaculture. A photo shows an indoor fish farm with many large round tanks On this fish farm, fish are raised in a tightly controlled environment. What Is Aquaculture? 3 Aquaculture is the science and practice of growing fish for food; in other words, aquaculture is fish farming. Like plant farmers, fish farmers oversee the natural life cycle of what they farm. Fish farmers plant (or hatch) their crops (fish) in fields (places called hatcheri If a farmer wants his irrigation system to cover an area of 2 square miles, and hissprinkler rotates through 50 degrees, what is the diameter of his circular field to thenearest hundredth of a mile? Which digits are most important when determining that 8923 is greater than 8884 Why did Alfred Mahan write the Influence of Sea Power upon History? in the open sea, tsunami reach an average wave height of about: Which of the following types of decisions involves deciding whether to accept or reject an order that is outside the scope of normal sales?A. Special-orderB. Make-or-buyC. Continue or discontinueD. Sell-or-process further for each glucose that enters glycolysis, _____ nadh h are produced by the citric acid cycle. memory moments of zelie in children of blood and bones how many phonemes are in the word green? data shows that engaged employees are how much more effective than their peers HELP GIVING BRAINILEST 3.over time, will the adoption of six sigma quality improvement processes give a company a competitive advantage, or will it be required only to achieve parity with competitors? Please solve the question below a description of the goods which is made part of the basis of the bargain creates an express warranty that the goods will conform to the description. true false (q004) which of the following creates the vesicles seen in this image? rq-figure-5.04 click to view larger image. question 4 options: a) volatiles that escape from lava to form gas during an eruption b) slow cooling within the magma chamber in the presence of water c) high silica content in the lava d) rapid cooling of a lava flow by water a track coach creates an obstacle course for his team. the coach plots the locations of the three obstacles on the coordinate plane shown to the right. each unit on the coordinate plane represents three yards. a student starts at Obstacle A. Then runs south to obstacle b, and then runs west to obstacle c. what is the total distance, in yards, the student runs to get from obstacle a to obstacle c? What is the correct way to break 12 into parts and multiply each part by 67O 12 *610 2+2.6=20+12 = 32O 12*6 10-6+2-6=60+12=72O 12*6 1.6+2-6=6+12= 18O 12 *6 10 2+10-6-20+60=80 The half-life of radium-226 is 1590 years. If a sample contains 100 mg, how many mg will remain after 2000 years?. which activty occurs in the process of photosynthesis Describe a scenario in which an object that is not moving has more potential energy than an object that is moving. How does your scenario meet this criteria? Use specific language from the text to explain.