Do turtles have exoskeleton?

Answers

Answer 1

Answer:

Mark me brainliest (⌒▽⌒)

Explanation:

The turtle shell isn't like any other protective element of any living animal: it's not an exoskeleton, like some invertebrates have, nor is it made of ossified scales like armadillos, pangolins, or some snake and reptile species. ... The turtle shell is actually a peculiar evolution of a turtle's bone structure
Answer 2

No. Turtles are vertebrate animals with internal skeletons. Even the shell is made of bone covered by a thin layer of tissue and keratin scutes (material similar to your fingernails). The entire skeleton is on the inside. A turtle’s shell is no more an exoskeleton than your own skull is.


Related Questions

This model chose to include certain features and exclude other features. For example, this simulation only includes rabbits, wolves, and grass but there are other predators of rabbits and other food sources for rabbits. Why do you think the creators focused on these data elements and not others

Answers

The creator focused on these data elements and not others because he was trying to create a food chain instead of a food web.

In the ecosystem, the living and non-living things interact over time leading to exchange of energy.

A food chain can be defined as the steps through which energy transfer occurs in an ecosystem.

The energy flows from the producers (grass), primary consumers, (rabbits) and then the secondary consumers (wolves).

The energy flow is indicated with an arrow thus,

grass ---> rabbit -----> wolves.

Food chain, therefore includes linear sequence of organisms.

Food web on the other hand illustrates a complex feeding relationship within the ecosystem.

The food web is made up of a prey that can be eaten by more than one predator.

Therefore, even though there where other predators of rabbits and other food sources for rabbits, he chose only few features to create a food chain.

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In what type of organism is cell differentiation
necessary?
A. prokaryotes
B. kingdom archaebacteria
C. single-celled organisms
D. multi-cellular organisms

Answers

It’s D. multi-cellular organisms. Differentiated cells are important in a multicellular organism because they are able to preform a specialized function in the body.
The answer is D that’s what I got

Which of the following describe how seabird populations are affected by climate change?

Answers

Answer: Varies

Explanation:

It depends on the time of season at the given moment.

positive and negative punishment are meant to?

Answers

Answer:

yessssssssssssssssssssss

is broccoli a dicot or monocot?

Answers

Answer:

Broccoli is a dicot

Explanation:

I looked it up on the internet :)

Unlike monocots, the pollen grains of dicot plants have three pores and are called trisulcate. Dicot plants can also have bark and secondary growth increases the diameter (girth) of the plant. Examples of dicots include potatoes, tomatoes, apples, pears, peaches, cauliflower, peppers, broccoli, and cabbage.

Foods that are dicot: Dicots​ ​- ​Flowering plants with two seed leaves. Examples of these are: fruits, vegetables, mangoes, lentils, blackberries, potatoes, and avocados.

Foods that are monocot: Other economically important monocotyledon crops include various palms (Arecaceae), bananas and plantains (Musaceae), gingers and their relatives, turmeric and cardamom (Zingiberaceae), asparagus (Asparagaceae), pineapple (Bromeliaceae), sedges (Cyperaceae) and rushes (Juncaceae), and leeks, onion and garlic ( ...

Hope this helped!♡︎シ

What are the two most common types of secondary structure found in proteins?

1- α-helices and β-arrays
2- double stranded helices and β-arrays
3- α-helices and β-pleated sheets
4- β-spirals and α-turns

Answers

Answer:

1- α-helices and β-arrays

HEEEEEEEEEEEEEEEEELLLLLLLPPPPPPPPPPPPPP
DNA and RNA contain nucleotides that code for what?

A Carbonic Acids

B Amino Acids

C Hydrochloric Acids

D Lactic Acids

Answers

Answer:

your answer is definitely B: Amino Acids

Explanation:

Answer:

B

Explanation:

In very extreme weather, the xylem cells are damaged as well. Describe how the plant is affected if the xylem is unable to function correctly.

Answers

Answer:

The plant will die

Explanation:

Xylem's job is to transport water and minerals from the soil to the parts of the plant. Without it the plant won't receive the required minerals and the plant will die.

Which of the following is not true of chloroplasts?


a. They synthesize sugar
b. They contain pigments
They are only found in plants d. They appear green because of the ch

Answers

Answer:

a.

Explanation:

they don't synthesis sugar..ig...lol

The gallbladder provides ________ that aid(s) in transport of lipids across the intestinal membrane.

Answers

The gall bladder provides bile salt.

The gall bladder is a small pear-shaped organ that is located at the abdomen inferior to the liver.

This organ stores and releases the bile salt produced from the liver.

The bile salt is released through the bile duct into the duodenum of the small intestine.

The bile salt is use to emulsify fat thereby aiding it's transport across the intestinal membrane.

Therefore, the gall bladder provides bile salt that aids in transport of lipids across the intestinal membrane.

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Which type of mutation reverses the direction of parts of a chromosome?

Deletion
Duplication
Inversion
Translocation

Answers

Answer:

Its "C"  Inversion

Explanation:

I took the test and got it correct

Type of mutation reverses the direction of parts of a chromosome is inversion. The correct answer is option C.

What is the basic structure of chromosome ?

The chromosomes are thread like structures present in the nucleus and the  these chromosomes carry the genetic information in them from one generation to another.

Inversion inverts the structure of chromsome and it basically turns the chromsomes inverted.

Inversion is the process where one arm of the chromosome gets detached from the basic structure and it gets attached in the inverted direction.

This  creates multiple copies of DNA turning it into genetic material and one of the X linked recessive disorders is haemophilia in which same type of mutation caused by the chromosome at the 8th position takes place.

Therefore, Mutation that reverses the directions of the part of the chromosome.

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HEHEHHEHEHEHEHHEHEHHEHHEHE HELP ASAP

Answers

the answer is A. voting.

ASAP Brainly, right here right now!
Examine the comparison between a eukaryotic cell and a prokaryotic cell. Which two lettered choices provide a comparison of structures that encode genetic information for the cells? A) A and D B) B and D C) C and D D) None of these choices, as prokaryotic cells do not contain DNA

I am almost certain it is A) a and d) but I need reassurance.

Answers

Answer: c & d

Explanation:

C and D provide a comparison of structures that encode genetic information for the cells. So, the correct option is C.

What are Prokaryotic and Eukaryotic cells?

Prokaryotic cells are single-celled microorganisms known to be the earliest on earth. Prokaryotes include Bacteria and Archaea. The photosynthetic prokaryotes include cyanobacteria that perform photosynthesis. A prokaryotic cell consists of a single membrane and therefore, all the reactions occur within the cytoplasm which can be free-living or parasites.

Eukaryotic cells are defined as having a nucleus enclosed within a nuclear membrane and form large and complex organelles. Protozoa, fungi, plants and animals all contain eukaryotic cells which are classified under the kingdom Eukaryota.

Thus, C and D provide a comparison of structures that encode genetic information for the cells. So, the correct option is C.

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what are some drawbacks to using mice in genetic studies?

Answers

Answer:

One drawback to using transgenic, knock-in, and knock-out mice to study human diseases is that many disorders occur late in life, and when genes are altered to model such diseases, the mutations can profoundly affect development and cause early death.

hope this helps

Explanation:

Genetically altered mice have served to recapitulate human diseases, including cancer, glaucoma, heart disease, and diabetes. However, despite their genetic similarity to humans, mouse models are criticized for their failure to accurately mimic human disease phenotypes.

Why it's bad to use mice as an experiment:

The use of mice as model organisms to study human biology is predicated on the genetic and physiological similarities between the species. Mice are less reliable as models of human disease, however, because the networks linking genes to disease are likely to differ between the two species.

Have a great day! :D

________________________ happen when pairs of bonded bases in a double strand of DNA get replaced with different pairs.

_________________________ happen when extra base pairs are included in an existing DNA sequence.

_________________________ happen when base pairs in an existing DNA molecule get removed from it.

Fill in the blanks correctly

Answers

Answer:

Explanation:

A base pair is two chemical bases bonded to one another forming a "rung of the DNA ladder." The DNA molecule consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups. Attached to each sugar is one of four bases--adenine (A), cytosine (C), guanine (G), or thymine (T). The two strands are held together by hydrogen bonds between the bases, with adenine forming a base pair with thymine, and cytosine forming a base pair with guanine.

Label the process in the carbon cycle

Answers

Answer:

Photosynthesis

Explanation:

uhmm i think

what is the main reason scientist do experiments?
A) to find out if a hypothesis is correct
B) to provide jobs for scientists
C) to find different ways to use lab equipment
D) to educate science students

Answers

A. to find out if a hypothesis is correct.

What is the empirical formula of a compound that contains 4.03 g of hydrogen per mole, 64.14 g of sulfur per mole, and 128.00 g of oxygen per mole?

Answers

Answer:

Oct 27, 2015 · CH_4 For this kind of problem, you can assume that the weight of the unknown sample is 100g ( since 75% C + 25% H = 100%). Thus, weight of C = 75g weight of H = 25g Since chemical formulas deal with number of moles rather than weight in grams, you need to convert each element by multiplying it to their respective atomic masses.

Explanation:

The empirical formular i H₂SO₄

The first step is to calculate the compound by the molar mass

Hydrogen,   Sulphur,   Oxygen

4.03/1   ,   64.14/32   ,   128/16

4.03  , 2  ,   8

Divide by the lowest value

4.03/2  ,  2/2 ,  8/2

2, 1 , 4

H₂SO₄

Hence the empirical formula is H₂SO₄

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Identify this functional group

Answers

Answer:

Hydroxyl

Explanation:

Hydroxyl groups are simple structures consisting of an oxygen atom with two lone pairs bonded to a hydrogen atom.

A hydroxy or hydroxyl group is a functional group with the chemical formula -OH and composed of one oxygen atom covalently bonded to one hydrogen atom.

Using these given definitions, a hydrogen bond is labeled with one linkage, while a covalent bond is with two links to the Carbon Atom.

See attached image for a similar diagram for proof.

What is the nervous system composed of?
A. The central nervous system
B. The peripheral nervous system
C. The respiratory system
D. Answers A & B


Answers

Answer: D) the central and peripheral nervous systems

hope this helps

1. In the digestive system, where are nutrients absorbed?

A: Small intestine

B: Large intestine

C: Or Liver



2. In the circulatory system, what type of vessels are able to exchange materials by passive transport?

A: Capillaries

B: Arteries

C: Veins



3. Which system controls all other organ systems?

A: Endocrine

B: Nervous

C: Respiratory


4. How does the integumentary system aid with homeostasis?

A: Controlling body temperature

B: Both A and B

C: Getting rid of excess salt through sweat


5. Which system is in charge of producing offspring?

A: Muscular

B: Urinary

C: Reproductive



6. Bones, cartilage and ligaments are all structures in what organ system?

A: Skeletal

B: Endocrine

C: Circulatory


7. Which of the following statements about the circulatory system is NOT true?

A: The liver is used to clean blood and remove any wastes and excess water/salts.

B: The endocrine system uses your blood to carry hormones around the body.

C: it delivers nutrients, gases and other materials throughout the body.




Answers

Answer:

1. Small intestine

2. A. Capillaries

3. B. Nervous system controls all other organ systems.

4. A. Controlling body temperature.

And hydration.

B. Producing sweat to regulate body temperature and get rid of waste.

5. C. Reproductive system.

6. Skeletal system

7. A

Explanation:

What are two substances that need to be transported out of animal cells, in order to survive

Answers

Carbon dioxide and potassium ! Hope this helps

Quante tipo di carte geografica ci sono

Answers

Answer:

According to the ICSM (Intergovernmental Committee on Surveying and Mapping), there are five different types of maps: General Reference, Topographical, Thematic, Navigation Charts and Cadastral Maps and Plans.

Sorry that's not my language : (




By thank you for points im so sorry for that nonsense word: /

Question 1) Discuss how compounds in different types of organisms can be used to benefit people? ( Will Mark Brainliest).​

Answers

Compounds from different organisms are being used widely bu humans for their benefits. Some of the compounds are used as drugs. For example, penicillin is used as a drug or antibiotic. There are many plants which provides humans with other types of medicines and herbal remedies. There are other compounds which are used for cancer treatment. For example, taxol is a compound obtained from trees which are being used as anticancer drugs.

Which elements would HAVE a dipole interaction when bonding* in

Oco
Na-CI
H-H
K-Ca

Answers

Answer:

NaCl

sodium chloride have dipole interaction when bonded

6. Which is not a product of photosynthesis? nitrogen glucose water oxygen

Answers

Nitrogen is not a product of photosynthesis

How toxins are accumulated as you go up in trophies levels in an ecosystem

Answers

Answer:

hi sorry, i want stitches

If you were born November 16, 1986 how old are you today

Answers

Answer:

2021-1986 = 35 years old

Explanation:

Answer
You say
2021-1986
The person is 35 years old

Hope this helps :)

Help please :) thank you

Answers

Answer:

C

Explanation:

am su that is the answer u need

The process of mitosis ensures that each daughter cell has a copy of every chromosome present in the parent cell. What is the use of this process?

Answers

Answer:

option C is correct... the third one

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