Biology High School

The best way to find out how old a sample of petrified wood (225 million years old) from the
Petrified Forest National Park in Northeast Arizona is by
a.radiocarbon dating
b.potassium-argon dating

Answers

Answer 1

Answer:

a.radiocarbon dating

Related Questions

Discuss the possible outcome of an epiphyseal fracture in a 14 year old patient compared to a 40 year old one

Answers

Answer:

It could close growth plate in a 14 year old leading to shorter limbs or crooked limbs

Explanation:

Compared to a 40 year old patient, an epiphyseal fracture on a person of 14 years can be a cause for great concern.

The epiphyses are found at the ending of long bones. New bones are produced from here.

A person of 14 years is an adolescent and still at the puberty stage compared to a 40 year old. Such a person is not yet mature. An injury such as a fracture can cause the growth plate to close thereby disrupting the growth of the bone. A fracture through growth plate can cause shorter limbs.

The possible outcome of an epiphyseal fracture in a 14-year-old patient leads to shorter and crooked limbs.

What do you mean by Epiphyseal fracture?

An Epiphyseal fracture may be defined as a combination of a horizontal fracture line through the physis and a vertical fracture line that runs from the growth plate through the epiphysis to the articular surface.

The 14-year-old patient is under adolescence so their bone is not completely formed, while a 40-year-old patient almost completed the adulthood stage, so their bone is completely formed and strengthened, which may reduce the chances of bone adjoining.

Therefore, the possible outcome of an epiphyseal fracture in a 14-year-old patient leads to shorter and crooked limbs.

To learn more about Epiphyseal fracture, refer to the link:

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What are people in a coastal location in Florida most likely to do if there are moderate winds and waves along the shore?

Build barriers on the coastline to prevent flooding
Engage in water sports like surfing
Enjoy recreational activities off the beach
Shift to inland locations temporarily

Answers

Answer:

b

Explanation:

cause a smart dude in the first comment section said so

Engage in water sports like surfing is the coastal location in Florida most likely to do if there are moderate winds and waves along the shore.

What is Coastline?

There are approximately 312,000 kilometers of coasts on the continents of the world (193,000 miles). They have changed positions during geologic time as a result of significant alterations in the relative levels of land and sea.

All coastal regions were impacted by sea level dips brought on by the loss of water from the oceans during glacial advances, according to studies of glaciations during the Pleistocene Era.

The sea level during the last Pleistocene glacial epoch is considered to have been nearly 122 m lower than it is now, exposing a significant chunk of what is now the continental shelf.

Therefore, Engage in water sports like surfing is the coastal location in Florida most likely to do if there are moderate winds and waves along the shore.

To learn more about Coast line, refer to the link:

https://brainly.com/question/2851516?

#SPJ2

Pls help, I really dont get this.

Answers

if theirs helps you then an eukaryotic cell is animals, plants, algae, protozoans, and fungi, a prokaryotic cell is bacteria and stuff :) have a nice day

Answer:

A

B

B

A

B

Explanation:

I hope this is correct

Evidence of a chemical change can be observed when-

A. a solid melts into a liquid.
B. cookies are crumbled.
C. a drink is poured from a can to a cup.
D. a banana turns brown after being cut.

Answers

Answer:

A. a solid melts into a liquid

Explanation:

HELPPPP I NEED THE ANSWER ASP ITS WORTH 70% OF MY GRADE

What would happen if bacteria and viruses organism were moved to the each others ecosystems?

Answers

Answer: The cycling of nutrients such as carbon, nitrogen, and sulfur is completed by their ceaseless labor. ... Decomposition is the breakdown of these organisms, and the release of nutrients back into the environment, and is one of the most important roles of the bacteria.

Explanation:

Enzymes are typicaly carbohydrates. *
True or
False

Answers

Answer: false

Explanation:

Answer:

false, they are usually proteins

Explanation:

i learned this chapter

How long does it take for a dinosaur to decompose?​

Answers

Answer:

DECADES

Explanation:

how might genetic variation arise?

Answers

Answer:

Genetic variations can arise from gene mutations or from genetic recombination (a normal process in which genetic material is rearranged as a cell is getting ready to divide). These variations often alter gene activity or protein function, which can introduce different traits in an organism.

Explanation:

your welcome

how similar are chemical makeups of human and gorilla hemoglobin

Answers

Answer:

One study (Takahata et al., 1995) used 15 DNA sequences from different regions of the genome from human and chimpanzee and 7 DNA sequences from human, chimpanzee and gorilla. They determined that chimpanzees are more closely related to humans than gorillas.

Explanation:

1. Temperate grasslands are characterized by cold winters and hot and dry summers.
A.True
B.False

Answers

Answer:

True

Explanation:

Florida panthers can have straight tails (S) or curly tails (s). What is the probability that two heterozygous panthers (both Ss) will have offspring with curly tails?


25%


50%


75%


100%

Answers

there is a 25% chance that two heterozygous panthers will have offspring with curly tails.

explain the Krebs cycle

Answers

Answer:

Explanation:

The Krebs cycle, named after 1953 Nobel Prize winner and physiologist Hans Krebs, is a series of metabolic reactions that take place in the mitochondria of eukaryotic cells. Put more simply, this means that bacteria do not have the cellular machinery for the Krebs cycle, so it limited to plants, animals and fungi.

Uneven heating in the _, causes molten rock to _ as the temperature _ might results in plate movements

Answers

Answer:

earth

melt

increase

Explanation:

The heating on the earth surface is uneven as the rays of the sun are spread unevenly. The heat on the earth will cause the molten rocks to melt down creating volcano. This increased heating will cause movements in the plate.

Which of the following is NOT a property of water?

a
Frozen water floats on liquid water
b
Water covers most of the Earth's surface and retains a large amount of heat
c
Water molecules stick to each other through hydrogen bonds
d
Water cools very quickly

Answers

B pls do brainlyest
D. Water does float, as it is less dense, can take in a lot of heat and covers the majority of earth, and sticks to each other due to the polarity of water.

Water needs a big amount of energy added or removed in order to change phase.

b. Margo notices that waves start passing her more often. What can she conclude about the frequency and wavelength of the waves? Input Field 2 of 2

Answers

Answer:

freq is increased and wavelength would be decreased

Explanation:

7. If you have a 100-base pair DNA molecule that contains 45 cytosines, how
many adenines are there?

Answers

Answer:

5 adenines

Explanation:

Cytosine pairs with Guanine, and Adenine pairs with Thymine. This means, that if there are 45 cytosines, there must be 45 guanines. So that's 90 base pairs down. That means that there are 10 left between adenine and thymine- so that means there are 5 adenines

This is study island help Mee pls

Answers

Answer:

d. dominant gene

Explanation:

Answer:

D.

Explanation:

write the following blood vessels in order of size starting from smallest to largest​

Answers

capillary, vein, vessel sorry if i’m wrong

Answer: (smallest to largest): Veins , Capillaries,  Arteries,

Explanation:

HELP DUE IN 10 MINS! What type of solution is the cell in below?

A. hypertonic solution

B. hypotonic solution

C. isotonic solution

Answers

Answer:

I'm just here for the points....

and I fr wouldn't know what I would do without you in my life babes its be a rough couple of days and I'm glad you came in my life when you did bc you make me so happy :)

Why are recessive alleles not always shown in the offspring?

Answers

Explanation:

Recessive alleles lack the power to express the phenotypic traits of an organism. In order for the specific trait to be expressed, 2 copies of the recessive allele or homogenous recessive genotype is needed in the organism.

Which type of mixture is it, if the solid settles out of the mixture over time?
O suspension
o homogenous
o colloid
solution

Answers

Answer:

Suspension

Explanation:

A suspension is a heterogeneous mixture in which some of the particles settle out of the mixture upon standing. The particles in a suspension are far larger than those of a solution and thus gravity is able to pull them down out of the dispersion medium (water).

If the solids settle out of the mixture over time, such a type of mixture is called suspension.

A suspension is a heterogeneous mixture in which some of the particles settle out of the mixture upon standing.

What are the different types of mixtures?

there are mainly two types of mixtures that are:

homogeneous mixture

homogeneous mixture

A homogeneous mixture is a mixture throughout the solution in which the composition is uniform throughout the mixture.

A homogeneous mixture is a mixture in which the composition is not uniform throughout the mixture.

Hence,  a suspension is a heterogeneous mixture in which some of the particles settle out over time.

To learn more about the mixtures click here :

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which molecules store energy in their chemical bonds

Answers

Answer:

Living organisms use two major types of energy storage. Energy-rich molecules such as glycogen and triglycerides store energy in the form of covalent chemical bonds.

Explanation:

I WILL GIVE BRAINLIEST!!!

The pedigree below tracks Duchenne Muscular Dystrophy (DMD) through several generations. DMD is an X-linked recessive trait.

If individuals I-1 and I-2 had another son, what is the chance that he would have DMD?

Choose 1 answer:

(choice A)
A
0%

(choice B)
B
25%

(choice C)
C
50%

(choice D)
D
100%

Answers

The answer is B If you look the percent you can it is

Answer: CORRECT (SELECTED)

100%

Explanation:

Because individual I-2 is affected, she can only pass on a recessive DMD allele to her sons. This means that all of her sons will have DMD.

Which of the following machines would a logger use to transport lumber over long distances?
O skidder
O forwarder
O dozer
buncher

Answers

Answer:

Forwarder

Explanation:

the structure most responsible for maintaing cell homeostasit is the

Answers

Answer:cell membrane

Explanation:

The structure most responsible for maintaining cell homeostasis is the cell membrane. The cell membrane is a thin, flexible barrier that protects the.

which codon is the code for the amino acid serine

Answers

AGT is the code for Serine

The one above of me is right

can somebody PLEASE help me with this. It is due very soon D:

Topic: Describe primary and secondary succession.
Write at least 2 paragraphs(3-5 sentences each).
PLSSSS

Answers

In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In secondary succession, an area that was previously occupied by living things is disturbed, then re-colonized following the disturbance.


Hope this help

what is meant by cohesive property of water​

Answers

Answer:

cohesion; water is attracted to water

adhesion; water is attracted to other substances

Explanation:

adhesion and cohesion are water properties that affects every water molecule on earth and also the interaction of water molecules with molecules of other substances

Water cohesion is a property of water that allows its molecules to stay together. One oxygen atom is bonded to two hydrogen atoms to form a water molecule. Because of the charge imbalance, opposites attract, and water molecules form weak hydrogen bonds with one another.

Which describes an interaction within the musculoskeletal system?
When a muscle contracts, a bone will move.
• When a bone contracts, a muscle will move.
O When a tendon contracts, a ligament will move.
O When a ligament contracts, a tendon will move.

Answers

When a muscle contracts, a bone will move. When a bone contracts, a muscle will move. ... When a ligament contracts, a tendon will move.

Answer:

A, When a muscle contracts, a bone will move.

Explanation:

Which RNA nucleotide is complementary to guanine?

Question 4 options:

adenine


uracil


guanine


cytosine

Answers

Cytosine is correct
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