Starfish are echinoderms, a term that means spiny skin. The rough covering serves as a natural barrier and protects the starfish from predators and the environment. What system includes skin?

Answers

Answer 1
Shawn is mayonnaise an instutment

Related Questions

Look at the chart below to answer this question. Which substance is the LEAST dense of the three substances?
Substance A
Substance B
Substance C

Answers

Answer:

Substance B

Explaination: Density is a measure of how heavy something is compared to its size. If an object is more dense than water it will sink when placed in water, and if it is less dense than water it will float. Density is a characteristic property of a substance and doesn’t depend on the amount of substance.

1) Write the characters of 'Penguin' with the help of classification chart.
Classification:- i) kingdom:
ii) Phylum:
iii) Class:
iv) Subkingdom:
Characters:-

Answers

Explanation:

hope help you stay happy

Which of the following is an example of a phenotype (select all that apply)?
Group of answer choices

Brown Hair

GG

RR'

Physical trait

Answers

Answer:

brown hair and physical trait

An example of phenotypes are brown hair and physical trait. Therefore, option A and D are correct.

What is phenotype ?

A set of an organism's observable qualities or characteristics is known as its phenotype. The phrase refers to an organism's morphology, or its physical form and structure, as well as its physiological and biochemical characteristics, behavior, and the outcomes of that behavior.

We examine the alleles of the parent organisms and predict how frequently the offspring will exhibit those genes to determine a phenotypic ratio. Most of the time, we are aware of the alleles' expression and appearance.

An observable characteristic is simply referred to as a "phenotype." Pheno, which has the same root as the term "phenomenon," simply means "observe." It can therefore relate to anything from a common characteristic, like height or hair color, to a visible type of organism.

Thus, option D is correct.

To learn more about the phenotype, follow the link;

https://brainly.com/question/26124553

#SPJ6

ANSWER QUICKLY WILL GIVE BRAINLIEST TO THE FIRST PERSON TO ANSWER A REAL ANSWER

Jasmine went to the tide pool. She took pictures of some animals. How can you tell which tide zone the animals live in?

Answers

Answer:

food and population

Explanation:

Different animals eat different things for example a sea urchin eats seaweed so if she took a picture of a urchin you would find it in the one that has the most vegetation. the urchins try to space out so look how many animals are in the picture. I hope that helps ;)  

Answer:

food and population :)

Explanation:

please give brainliest?! :):):)

La influencia que tiene la temperatura en la reproducción de los paramecios, en muestras de agua estancada

Answers

Answer:

Para un paramecio la temperatura óptima requerida para llevar a cabo sus funciones metabólicas (incluida la reproducción) se encuentra entre 24 °C y 28 °C

Explanation:

Los paramecios (género Paramecium) son protozoarios, es decir, organismos microscópicos del reino protista. Un paramecio es un organismo unicelular que puede llevar a cabo todas las funciones esenciales de un modo funcionalmente similar a una célula animal. Los paramecios pueden reproducirse tanto de manera sexual como asexual (bipartición). Estos organismos viven en cuerpos de agua dulce rica en nutrientes orgánicos como estanques, charcos, regiones de ríos parcialmente estancadas, etc. En estos ambientes los paramecios se reproducen de un modo óptimo a una temperatura entre 24 °C y 28 °C, donde pueden llegar a dividirse hasta 4 veces al día.

What changes occur in taste receptors when the membrane is depolarized during receptor potential A. Voltage-gated Ca2 channels open, triggering the release of neurotransmitter. B. Voltage-gated Cl- channels open, triggering the release of neurotransmitter. C. Voltage-gated Ca2 channels open, inhibiting the release of neurotransmitter. D. Voltage-gated Cl- channels open, inhibiting the release of neurotransmitter.

Answers

Answer:

A. Voltage-gated Ca² channels open, triggering the release of neurotransmitters.

Explanation:

For taste mechanisms to function properly, it is necessary the activation of taste receptors.  

Through the activation of taste receptors, transduction cascades occur, involving ion channels that are located in the apical or lateral membranes. There occurs a subsequent release of chemical neurotransmitters that send signals to the control centers.

Salty and sweet flavors produce the membrane depolarization that results in Ca+ ions´ entrance to the cell. Ca+ initiates the release of neurotransmitters. Afferent gustative neurons receive the message and send it to the control center, the encephalon. After that, gustative cells go back to the initial state, repolarizing.

can someone please answer this for me?​

Answers

Answer:

50 %

Explanation:

Using a punnets square the four possible crosses are Hh, Hh, hh, and hh. This means there is a 50% chance the child has hh or hemophilia

Once a scientist has examined all of the facts, performed experiments to test their question, and analyzed the results, then they can form a

method
hypothesis
consensus
theory

Answers

they can form a consensus

Answer:

Consensus

Explanation:

Consensus means conclusion which is the last step you get when after completing the scientific method.

Your Welcome

Which best describes the storage of the genetic code?

A gene is a segment of DNA, a condensed DNA molecule makes up a chromosome, a chromosome is inside a nucleus, and a nucleus is contained within a cell.
A DNA molecule is a segment of a gene, a gene makes up a chromosome, a chromosome is inside a cell, and a cell is contained within a nucleus.
A gene is a segment of a chromosome, a condensed chromosome makes up a DNA molecule, a DNA molecule is inside a nucleus, and a nucleus is contained within a cell.
A DNA molecule is a segment of a chromosome, a chromosome makes up a gene, a gene is inside a cell, and a cell is contained within a nucleus

Answers

Answer:

I think the answer is B (  I'm sorry if this is wrong :(  )

Explanation:

Answer:

b

Explanation:

it seems like the most... correct answer

what is projected to happen by 2050 , to some 200 to 600 million of the world poorest and most vulnerable people?.​

Answers

Answer:

I don't what could happen in 2050

Explanation:

*7 EXTRA POINTS PLS ANSWER*
A person pushes the same box with the same amount of force on 3 different surfaces. Which surface exerts the least friction on the box?
*WRITE AS A CER*

Answers

Answer:

Read explanation

Explanation:

Surface C exerts the least amount of friction on the box. Evidence that proofs this claim is that the length of time it took the box to stop is greatest compared to surfaces A and B. The box and the amount of force added is the same for each surface test. It would take the box less time to come to a stop the more friction there is upon the surface.  Surface A having the quickest stop time meaning it has the most friction and C having the most time showing that it has the least amount of friction. In conclusion, surface C exterts the least amount of friction on the box.

Describe an adaptation to a plant's life cycle and explain how this adaptation helps the plant survive. Source StylesNormal

Answers

Answer:

The adaptation of a plant in an environment ( for example,desert) depends on the structural parts of the plant which enables it to complete it's life cycle.

Explanation:

Plants are found in different types of environment. They need to possess and show some features that will enable them to live successfully and reproduce in that particular environment. Such features may be structural, functional or behavioural which are known as ADAPTATIONS.

Furthermore, in environment where there is scarcity of water supply, plants known as xerophytes can survive or thrive. They show the following adaptations:

--> well developed roots: the roots grow down to great depths if necessary and branch extensively in order to absorb water from as large an area as possible.

--> presence of swollen stems: These stems contains water storage cells which are called succulents. They help the plant withstand long period of drought.

--> Reduced leaves: This helps in reducing water loss from leaves through transpiration. For example in plants like the cacti, the leaves are reduced to spines.

Therefore, these structures helps the plant survive in its present environment.

What is the condition of outside air a certain time and place

O Climate zone

O Weather

O Climate

O Element

Answers

the would have to be weather

Which best explains why viruses do not have special structures or enzymes that allow them to make their own food?
Viruses can use energy of living cells that they infect.
Viruses can replicate inside a host that they infect.
Viruses can cause contagious illnesses in host cells.
Viruses integrate their RNA or DNA into infected cells.

Answers

Answer:

Viruses can replicate inside a host that they infect. ... The epiglottis closes the air pathway so that food will not enter it.

Answer:

B.) Viruses can replicate inside a host that they infect.

Explanation:

I just finished this test and got it right. This was the answer for me

Carbohydrates contain __________ that your body absolutely must have to stay alive. chemicals
fats
minerals

Answers

Answer: blood vessels or oxygen H2o 6^

Explanation:

Answer:

Fat

Explanation:

It is fat because when your body is suffering or deprived it relies on the bodies carbohydrates. In these carbohydrates they have fat and protein. Your body uses these as an energy source so we can stay alive.

What is the shape of DNA?

Answers

Answer:

hey friend..... here is your answer....

the shape of DNA is double helix


factors necessary for germination of seed..
pls answer and hiii​

Answers

All seeds need water, oxygen, and proper temperature in order to germinate. Some seeds require proper light also. Some germinate better in full light while others require darkness to germinate. When a seed is exposed to the proper conditions, water and oxygen are taken in through the seed coat.

Identify the parts.
A. Stigma
B.
C. Sepal
D.
F.
H.
J.
K.
L.
O.
P.

Answers

Answer:

A. anther

B. receptacle

C. sepal

D. petal

F. filament

H.

J.

K. pollen tube

L.Ovary

O. Ovule

P. Style

* I'm confused with H and J

Which type of tissue allows for coordination and control of movement?
muscle
epithelial
nervous
connective
De

Answers

Answer:

c

Explanation:

Nervous tissue is part of the nervous system that is present in nerves, brain, and spinal cord. By transmission of electrical impulses throughout body, it helps in controlling various activities like voluntary action such as walking, running, and jumping. Thus, nervous tissue is the right answer.

Why are there two numbers normally given when determining blood pressure?

Answers

because there is a number of the pressure in your arteries with your heart pumping and one without your heart pumping

Answer:

Both numbers are equally important and you need both. There are two because you need both.

Explanation:

When you go to take your blood pressure the top number is the systolic pressure and it measures the amount of pressure in your arteries during the contraction of your heart muscle. The bottom number is called the dialostic pressure and measures the amount of blood pressure of you heart muscle between beats. Healthy blood pressures numbers are 120 over 80, or 120/80.

How
many ATP are created by fermentation?

Answers

Answer:

2 ATP

Explanation:

Fermentation begins with glycolysis which breaks down glucose into two pyruvate molecules and produces 2 ATP

Answer:

2 ATP

Explanation:

I agree

What is the function of root hair cell?

Answers

They have three major jobs: absorbing water and minerals, anchoring and supporting the plant, and storing food. Absorbing water and minerals: Thin-walled epidermal cells and root hairs are well suited to absorb water and dissolved minerals from the soil.

Based on the characteristics of fruiting plants shown in the table, which statement accurately reflects the placement of the cucumber into a taxonomic group? Cucumbers are fruits that grow on plants with long, trailing vines and fuzzy leaves. Select ALL options that apply. A) Cucumbers likely share a genus with pumpkins but not a class. B) Cucumbers likely share a class with pumpkins but not a genus. C) Cucumbers share more taxonomic groups with eggplants that with pumpkins. D) Cucumbers and pumpkins would likely share more taxonomic groups than cucumbers and okra share. E) Cucumbers share more taxonomic groups with peppers than with any other plant listed in the table.

Answers

Answer: B and D

Explanation: I just got it wrong

Answer:

the answer is B & D

I got the test wrong and here is the answers

What is the effect of slow climate change?

Answers

Answer: Climate change also increases the appearance of more violent weather phenomena, drought, fires, the death of animal and plant species, flooding from rivers and lakes, the creation of climate refugees and destruction of the food chain and economic resources, especially in developing countries.

Explanation: Hope this helps

Why do hydrogen atoms form a molecule but helium atoms do not?

Answers

Answer:

Explanation:

In terms of old school electron shells - One Hydrogen atom on it's own has an empty shell, and therefore to fill the shell it needs another electron. In the case of Helium, it already has two electrons at the same energy level - so it cannot accept any new electrons i.e. it cannot form new bonds.

Answer:

Hydrogen atoms can form a molecule as 2 hydrogen atoms together can result in a low energy combination of 2 electrons of the same energy level.

Explanation: Helium atoms already have 2 electrons of the same energy so therefore it cannot accept more.

Which of the following statements about current theories on global warming is true?
a. Scientists generally agree that global warming is taking place.
b. Some scientists think that we should accelerate global warming.
C. The scientific community disagrees about whether we should take action about global
warming
d. Cutting down trees and burning fossil fuels does not lead to global warming.
Please select the best answer from the choices provided
А A
B
С

Answers

Answer:

A. they pretty much all think there is global warming

Answer:

it is  

a.

Scientists generally agree that global warming is taking place.

Explanation:

edge 2021

quick help will give brainliest​

Answers

Answer:

the correct answer is c i just tuck the text

Explanation:

C. The centromeres of sister chromatid separate

What are the different features of the Moon’s surface?

Answers

Answer:

Craters, hills, and various spots.

Explanation:

When members of a species stop reproducing with each other because their sperm and egg do not create viable offspring, this is _______________ reproductive isolation. ILL GIVE BRAINLIEST!! picture also attatched.
A. gamete
B. temporal
C.behavioral
D.mechanical

Answers

Answer:

B

Explanation:

Summarize the path of an oxygen molecule from the nose to the bloodstream the​

Answers

Answer:

The oxygen molecule passes through the wall of the alveoli and enters inside tiny blood vessels called capillaries where exchange occurs.  A protein called hemoglobin in the red blood cells then carries the oxygen around your body.

Explanation:

Other Questions
Whats the website in this image called? What is the radius and diameter of the following circle? Discuss 3 challenges You might face post-Schooling that you would turn into an opportunity 3.4Why is this cocktail not the perfect medication to treat infections by thesebacteria? Read these lines of the first stanza from "In Just-." in Just- spring when the world is mud- luscious How does the word mud-luscious contribute to the meaning of the poem? It is an archaic word that shows the age of the speaker. 0 It is meant to show that children are frequently dirty during the spring. 0 It reflects the joys of spring weather and childhood. It invokes a sense of taste and is meant to be confusing to the reader. -3/8*2/5 + 2/5 * 5/8 PLEAse HElp ME PLeASe A Scooter travelling at 10m/s speed up to 20m/s in 4 sec.find the acceleration of scooter What did Cyrus II hope to achieve by leaving local rulers in charge after he conquered them? (50 words) Choose and answer a level one thinking stem from the list provided. Your answers should be detailed, and should reflect your understanding of the reading.I do not understand what it is asking me.. What is the vertex of the parabola? f(x) = 2x + 16x + 30 Please help, i need it done by today, Water treatment plant receives a 5% polymer solution. Calculate how much polymer should be mixed with water to produce 350 gallons of a 0.5% solution. Which angles are neither obtuse angles nor acute angles? Which is greater? 800 m or 799,999 mm which of the following is a function of the spleen? en que consiste la jerarqua de operaciones? Find the measurements of DBC 2. Which of the following objects has the greatest momentum?A) a 145 grain baseball hit at 45 m/sB) a 1200 kg car driving 25 m/sC) a 2.0 *10-2 kg snail moving al 3.0 * 104 m/sD) a 500 kg horse galloping at 12.0 m/s Compare the density of a 1,000,000 kg iceberg to that of a 10 g ice cube taken from theiceberg. Explain your answer.ANYONE ASAPP ITS SO IMPORTANT PLSSS