Megalodon left an awful lot of teeth behind, but don't worry. It is likely that it had plenty of extras. Like modern sharks, Megalodon had several rows of teeth. Scientists believe that Megalodon had six rows of 7-inch-wide, razor-sharp teeth, top and bottom, for a total of 276 teeth in its giant jaws! It's no wonder, then, that this ancient shark left so many of them behind. Without this trail of teeth, we would not know that these enormous creatures swam the ancient oceans as a top predator.Select two sentences from below that best show that the author wants the reader to be able to relate Megalodon's size to everyday life




A.What would you expect a creature whose name means “big tooth” to look like?
B.The Megalodon shark deserves this title.
C.As the Greek roots mega- (“big”) and don (“tooth”) suggest, this awesome prehistoric creature certainly did have huge teeth—as well as a massive and powerful body.
D.Scientists estimate that these gigantic sharks stretched as long as 60 feet.
E.If you're having trouble imagining that, just think of a school bus, typically about 45 feet in length.
F.Now, imagine a shark just a bit larger than that school bus—with 7-inch teeth.
G.Yes, this ancient fish certainly earned the prefix mega!
H.Since these sharks are extinct, how do we know exactly how huge and powerful the Megalodon shark was?

Answers

Answer 1

The answer is D and F. I did the test


Related Questions

Digestion of ___ begins in the stomach. Select one: a. starch and proteins b. starch and triglycerides c. triglycerides and proteins d. starch and all other oglio-orpolysaccharides

Answers

Answer:

c.triglycerides and proteins

C aka triglycerides and proteins

An explosion can quickly change chemical energy into:









sound, heat, and electricity O











light, electricity, and sound






light, heat, and electricity





sound, heat, and light​

Answers

Answer:

sound,heat,and electricity

Answer:

sound light and heat! it right im 100% sure

Explanation:

what are application of Sonar technique​

Answers

Answer:

NOAA scientists primarily use sonar to develop nautical charts, locate underwater hazards to navigation, search for and map objects on the seafloor such as shipwrecks, and map the seafloor itself.

Sonar sends a high frequency-sound to the bottom of the ocean. There, the sound waves bounce back when they hit an object. This “paints” a picture of what was hit. Sonar is used to see things at the bottom of the ocean.


The mantle, which makes up about 84% of Earth’s volume has several distinct characteristics. All BUT ONE is a characteristic of the mantle.

A) Movement in the mantle is expressed at Earth's surface by the motions of tectonic plates.

B) The upper, rigid mantle layer is composed of dense material such as iron magnesium silicate igneous rocks, like basalt.
C) The mantle is chemically distinct from the crust, is different in terms of rock types as well as seismic characteristics.

D) The uppermost mantle and the overlying crust form the lithosphere, which is relatively rigid at the top but becomes noticeably more plastic beneath.

Answers

Answer: B) The upper, rigid mantle layer is composed of dense material such as iron magnesium silicate igneous rocks, like basalt.

Explanation:

why does ligments stretch when pulled by bone​

Answers

They can stretch because there is one fluid present between ligament called synovial fluid!

Which option distinguishes why Johnny refused to eat the pie in the following scenario?
Johnny is cutting fast food out of his diet and is increasing his fruit and vegetable intake an effort to
lose weight. At a family dinner, apple pie was served for dessert, but Johnny politely declined.
The baked apples contain more sodium and nitrates than whole, uncooked apples.
O The baked apples are more nutritious than uncooked apples, but this is offset by added sugar
The baked apples contain more carbohydrates and sugar than uncooked apples.
O The baked apples in the pie are a whole food, which contains more calories than processed.

Answers

The baked apples contain more carbohydrates and sugar than uncooked apples.

List three man-made causes of the destruction of the world's coral reefs.

Answers

Answer:

pollution, over fishing, mining coral

Explanation:

which element is NOT found in DNA? a. Nitrogen b. oxygen c. sulfur

Answers

Answer:

sulfer

Explanation:

The different processes that an animal, such as an insect,
goes through as it grows and reproduces is called its

Answers

Answer:

Life cycle is my answer

Explanation:

it might be wrong

Explain how pasteur's experiment supported the idea that cells only come from other cells. Explain how it failed to support the idea of spontaneous generation.

Answers

Answer:

Pasteur and Tyndall Louis Pasteur's 1859 experiment is widely seen as having settled the question of spontaneous generation. He boiled a meat broth in a swan neck flask. ... When the flask was turned so that particles could fall down the bends, the broth quickly became clouded.

Explanation:

Which of the following shows some, but not all, characteristics of life?

Answers

Where do we hypothesize that plants came from?

dy÷dx=(x-1)(x+3) at x=2​

Answers

Answer:

[tex]\dfrac{dy}{dx}=\dfrac{4}{25}[/tex]

Explanation:

The given expression is :

[tex]y=\dfrac{(x-1)}{(x+3)}[/tex]

We need to find dy/dx at x = 2

[tex]\dfrac{dy}{dx}=\dfrac{d}{dx}(\dfrac{x-1}{x+3})\\\\=\dfrac{(x+3)\dfrac{d}{dx}(x-1)-(x-1)\dfrac{d}{dx}(x+3)}{(x+3)^2}\\\\=\dfrac{x+3-(x-1)}{(x+3)^2}\\\\=\dfrac{x+3-x+1}{(x+3)^2}\\\\\dfrac{dy}{dx}=\dfrac{4}{(x+3)^2}[/tex]

Put x = 2 in above expression

[tex]\dfrac{dy}{dx}|x=2=\dfrac{4}{(2+3)^2}\\\\=\dfrac{4}{25}[/tex]

Hence, the value at dy/dx is [tex]\dfrac{4}{25}[/tex]

When an organism dies, carbon dioxide can still be transported out of its nerve cells, but calcium
ions cannot. Suggest the reason for this difference.

Answers

Answer:Oxygen availability is often a limiting factor for cell survival, and it is generally ... An organism is faced with the following problem: How can the composition of ISF be ... which ensures proper exchange of oxygen and carbon dioxide; the kidney, ... to carry out its function of bringing blood close to cells so that the exchange of ...

by RN Pittman · ‎2011 · ‎Cited by 54 · ‎Related articles

Explanation:

Describe what are the roles of producers, Consumers, and decomposers in an ecosystem?

Answers

Answer:

"How might different types of organisms--producers, consumers, decomposers--be important to a healthy ecosystem?" (Producers change energy into matter with chemical energy that other organisms can use and then consumers pass the matter and energy on to other organisms by eating and being eaten; decomposers recycle some ...

Explanation:

how are pure carbon, oxygen, hydrogen different from thecompoundethanol which contains all three of those elements

Answers

Carbon, oxygen, & hydrogen may all be elements found in ethanol, but when separated, they have completely different chemical compounds. They are pure elements where as ethanol is a mixture.

Define homeostasis and explain why it is important.

Answers

Homeostasis is the ability to maintain a relatively stable internal state that persists despite changes in the world outside. All living organisms, from plants to puppies to people, must regulate their internal environment to process energy and ultimately survive.

Homeostasis is the ability of an organism or system to maintain a stable internal environment despite changes in the external environment. The term was coined by Walter Bradford Cannon in 1930 and comes from the Greek words "homeo," meaning "similar," and "stasis," meaning "standing still."

Homeostasis applies to the body's physiological processes, such as metabolism, temperature regulation, fluid balance, and hormone secretion. These processes involve a series of feedback mechanisms that sense changes in the body and trigger responses to restore balance. For example, when the body's temperature rises above a certain level, thermoreceptors in the skin and hypothalamus signal the sweat glands to produce sweat and the blood vessels to dilate, which helps to dissipate heat and bring down the temperature.

Homeostasis also applies to psychological processes, such as mood, stress, and arousal. These processes involve the brain's regulatory systems, such as the limbic system, the autonomic nervous system, and the endocrine system. These systems work in tandem to respond to internal and external stimuli, and regulate emotions, instinctual drives, and cognitive processes.

The concept of homeostasis is important in understanding health and disease. When homeostasis is disrupted, the body or mind may experience dysfunction, disease, or pathology. For example, chronic stress can lead to an overactive HPA axis and the release of cortisol, which can suppress the immune system and lead to inflammation and disease. Diabetes is also a condition where the body's homeostasis is disrupted, resulting in high blood glucose levels and impaired glucose metabolism.

The difference between PCR and real-time PCR is thatA. real-time PCR can measure the amount of DNA amplified as the reaction proceeds, while standard PCR cannot.B. real-time PCR can amplify DNA a billion-fold within just a few hours, while standard PCR cannot.C. real-time PCR can determine the DNA sequence, while standard PCR cannot.D. real-time PCR uses DNA polymerase, while standard PCR does not.

Answers

Answer:

The correct answer is A. real-time PCR can measure the amount of DNA amplified as the reaction proceeds, while standard PCR cannot.

Explanation:

PCR (Polymerase Chain Reaction) is a molecular biology technique. Conventional PCR and real-time PCR are diferent types of PCR, and are both used to exponentially amplify DNA molecules. In both types, a polimerase enzyme is employed to sinthesize DNA copies. The main difference is that conventional PCR is qualitative whereas real-time PCR is quantitative. So, real-time PCR permits not only to detect and amplify DNA but also permits to perform a quantification of the target DNA. This is accomplished by measuring a fluorescence signal - which is directly the amount of DNA amplified- during the course of the reaction.

On the pH scale, 14 is a(an)

O base
O acid
O mixture
O salt

Answers

The answer would be base. Anything less than 7 is acidic, anything more than 7 is a base and 7 exactly is neutral.

PLSSS MAMM HELP

Fossils cannot tell us anything about living organisms.


Please select the best answer from the choices provided

T
F

Answers

Answer:

false

Hope it will help you.......

The answer is False.

What is an essential characteristic of members of a given species?
the ability to produce eggs or live offspring without sexual reproduction
the ability to reproduce with members of another species
the ability to reproduce with one another and have fertile offspring
the ability to reproduce with organisms outside of their local gene pool

Answers

Answer:

the ability to reproduce with one another and have fertile offspring.

Explanation:

An essential characteristic of the members of a given species is the ability to reproduce with one another and have fertile offspring. Thus, the correct option is C.

What are the characteristics of a species?

A species is a group of organisms which are living in an area with similar characteristics which are capable of exchanging genes and chromosomes and produce new organism similar to itself. The species are important as it maintains the equilibrium in the ecosystem.

A species can be defined as the largest group of organisms with the two individuals of the appropriate sexes can produce a fertile offspring, typically through sexual reproduction. The species can also be defined on the basis of their karyotype, DNA sequence, morphology, behavior or ecological niche.

Therefore, the correct option is C.

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I need help with this please​

Answers

Answer:

the amount of carbon in the cycle can increase or decrease based on the number of factories present.

Explanation:

In the carbon cycle, carbon is exchange along many different forms on earth.  Carbon is the main component of biological compounds, and it is released from organisms when they die or when fossil fuels are burned, hence, the diagram demonstrates this.

What animal lives in the Antarctic lands and dwells on seals? Also is top of the food chain?

Answers

Answer:

Polar Bear.

Explanation:

pls hurry In which parts of the cell cycle would chromosomes be paired up? Check all that apply. interphase metaphase I anaphase II telophase II metaphase II telophase I

Answers

Answer:

metaphase I

Explanation:

The cell cycle encompasses the series of processes that divides a cell into daughter cells. The cell cycle is made of mitosis and meiosis, which are the types of cell divisions. Meiosis occurs in two division steps namely: meiosis I and meiosis II.

The stages in these meiotic process are prophase I and II, metaphase I and II, anaphase I and II, and telophase I and II. Note that, meiosis I involves homologous chromosomes while meiosis II involves sister chromatids. According to this question, Chromosomes pair up in the PROPHASE I stage and remains paired in the metaphase I stage until the separate in the Anaphase stage. Hence, chromosomes will be paired up in the METAPHASE I stage.

Give the mRNA and amino acid sequence of the DNA code below.

DNA Code: TAC AAA ACC ATG ACT
mRNA Codon: ___ ___ ___ ___ ___

amino acid: ___ ___
___ ___ ___

Answers

So the mRNA is AUG UUU UGG UAC UGA

True or False? a human has 23 chromosomes

Answers

humans have 23 PAIRS of chromosomes but have 46 total

Answer:

False

Explanation:

A cell normally contains 23 pairs of chromosomes.

Peter's Grandma has very severe memory loss. Which of the following could she be suffering from?
A. Spina bifida
B. Quadriplegia
C. Epilepsy
D. Alzheimer's

Answers

C is correct I think

Peter's Grandma with very severe memory loss is suffering from Alzheimer's.

What is Alzheimer?

Alzheimer is a progressive disease that destroys memory and other important mental functions.

Alzheimer causes the brain cell connections and the cells themselves to degenerate and die, eventually destroying memory and other important mental functions.

Thus, we can conclude that, Peter's Grandma with very severe memory loss is suffering from Alzheimer's.

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Which process or occurrence removes carbon from the atmosphere.
Animals
Forrest fires
Oceans
Decomposition

Answers

Forrest fries hope that helps and she

HELP PLS Danielle lives with her family on a farm. In school, she has been learning about the nitrogen cycle in science class. She knows that her father spread a nitrogen-based fertilizer on a patch of grass recently where the cows graze in the field. Why was it necessary to add a nitrogen-based fertilizer to the soil where there was a patch of grass?

a.because nitrogen can only be “fixed” by lightning
b.because there are no decomposers on the farm
c.because bacteria released all of the nitrogen into the air
d.because plants cannot use “free” nitrogen

Answers

I believe it is B. If this is correct, please mark brainliest! :))

It necessary to add a nitrogen-based fertilizer to the soil where there was a patch of grass - d. because plants cannot use “free” nitrogen.

Nitrogen cycle is the series of processes where nitrogen converts into its compound move through the environment and in living organisms.

The processes here include fixation, ammonification, nitrification and denitrification.Majority of Earth's atmosphere is nitrogen.Nitrogen fixation is the process allows free nitrogen to available for plants.Plants can not use free nitrogen their for they require fixation and nitrogen fixating bacteria in nature.nitrogen fertilizers provide nitrogen for plants in soil therefore it necessary to add a nitrogen-based fertilizer to the soil.

Thus, It necessary to add a nitrogen-based fertilizer to the soil where there was a patch of grass - d. because plants cannot use “free” nitrogen.

Learn more:

https://brainly.com/question/11662775

small fish find shelter amongst the branching coral.
How does this make the reef a hearty food web?​

Answers

Answer:

uhmmm going out on a limb probably because they can get trapped in the coral

Compare sequence 2 with sequence 1 and describe the mutation that has occurred.

Answers

Answer:

but is it rlly

Explanation:

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