Sand dollars are radially symmetrical and have an internal skeleton but no backbone. Which phylum do sand dollars belong in?

chordates
echinoderms
arthropods
mollusks

Answers

Answer 1

Answer:

echinoderms

Explanation:

they are in the same family as starfish and sea urchins

Answer 2

Answer:

echinoderms

Explanation:

I hope this helps


Related Questions

What's the difference between a planet’s rotation and a planet’s revolution as it moves in our solar system?

Answers

Answer:

"Rotation" refers to an object's spinning motion about its own axis. "Revolution" refers the object's orbital motion around another object.

Explanation:

For example, Earth rotates on its own axis, producing the 24-hour day. Earth revolves about the Sun, producing the 365-day year.

Select the correct answers. Meningitis is the inflammation of the protective covering of the meninges. Which organs would be affected first by the condition

Answers

Answer:

Brain and spinal cord

Explanation:

Meningitis is the inflammation of the protective covering of the meninges, the three membranes covering the brain and spinal cord. Meningitis usually occurs from a viral infection, but may sometimes result from a bacterial or fungal infection, cancer or drug allergies.

Viral and bacterial meningitis may be contagious and can be transmitted through coughing and sneezing.

Symptoms of meningitis include:

headachesfeversensitivity to bright lightstiff neckseizuressleepinesslethargynausea and vomitingdecreased appetite

Treatment is by vaccination, use of antibiotics and antifungal agents.

Answer: brain and spinal cord

Explanation: i just got it right on edmentum

What is the relationship between undisturbed sedimentary rock layers and fossils?

Answers

Answer:

A principle of law stating that within a sequence of undisturbed sedimentary rocks, that the oldest layers are on the bottom and the youngest are on the top. rock layers have a unique set of fossil animal and plant remains which can be used to determine the relative ages of rock layers.

Explanation:

Question 4 (2 points)
Separately sodium and chlorine are dangerous, but together they create
a
b
ООО
a poison
baking soda
salt
C
d
nothing

Answers

Answer:

salt is the correct answer

Graves’ Disease is an autoimmune disorder that causes an overproduction of the hormone produced in the thyroid. These hormones are responsible for cellular metabolism. What would this disorder probably result in?

Answers

Answer:

Explanation:

Graves' disease is an autoimmune disorder in which antibodies produced by your immune system stimulate your thyroid to produce too much T4. It's the most common cause of hyperthyroidism. Hyperfunctioning thyroid nodules (toxic adenoma, toxic multinodular goiter or Plummer's disease).

There are five different types of nucleotide bases found in living things. Which
is an accurate comparison of the bases found in robins and the bases found
in sparrows?
A. Sparrows have only one type of base in their cells; robins have
many
B. Robins and sparrows have different types of bases.
C. Robins and sparrows have different arrangements of the bases.
D. Robins and sparrows have the same arrangement of the bases.

Answers

Answer: the answer is C —> AP.EX

Explanation:

The nucleotide bases are the nitrogenous rings that form the backbone of the nucleic acid. Robins and sparrows have the same bases with different arrangements. Thus, option C is correct.

What are nucleotide bases?

The nucleotide bases or the nucleobases are the fundamental units that together with the sugar molecule and phosphate make the structure of the DNA or RNA.

There is a total of five nucleotide bases divided into purines and pyrimidines based on their ring structures. The purine consists of adenine and guanine, pyrimidine of cytosine, uracil, and thymine.

The bases are universal in organism containing the DNA or RNA but only differs in their arrangements that result in the development of the various traits and characteristics of the organism.

Therefore, in option C. the bases are arranged differently in species.

Learn more about nucleotide bases here:

https://brainly.com/question/13943070

#SPJ5

A paramecium's contractile vacuole pumps water out of the cell as a form of active transport.
1.True
2.False

Answers

Answer: true

Explanation:

Answer:

true

Explanation:

Which of the following substances is responsible for transporting materials into and out of the cell by active transport? A. Carbohydrates B. Proteins C. Cholesterol D. Lipids

Answers

Proteins. Qqqqqqqqqqqqq

pick the a.b.c below.

a. 8 grass/m2
b. 16 grass/m2
c. 24 grass/m2
d. 32 grass/m2​

Answers

Answer:

16grass/m²

Explanation:

Given parameters:

Number of grasses in quadrat = 4

Area of the square  = 0.25m²

Unknown:

Population density  = ?

Solution:

Population density is the number of organisms per given area;

  Population density  = [tex]\frac{number of grasses}{area of quadrat}[/tex]  

 Population density  = [tex]\frac{4}{0.25}[/tex]   = 16grass/m²

what are the building blocks of muscle and it provides 4 calories for every gram

Answers

Answer:

Protein

Explanation:

Protein is made up of amino acids that help to grow, maintain and repair different tissues in the body- including muscle.

Answer: The answer is protein

Explanation: I got it right on my test

Where does the carbohydrate reside ? Where is it found in cells ? What types of food is it found in ?

Answers

Carbohydrates are the sugars, starches and fibers found in fruits, grains, vegetables and milk products. Though often maligned in trendy diets, carbohydrates — one of the basic food groups — are important to a healthy diet.

what element has 7 protons and 5 neutrons?

Answers

Nitrogen because it has an atomic number of 7 and also 7 protons

The electrons of an atom
Select one:
a. have a positive charge.
b. are attracted to the positive charge of neutrons.
c. orbit the nucleus in various energy levels.
d. are found in the nucleus along with the protons.

Answers

Answer:

tbh im not goin say this easy answer to u bc thats 5th grade work fr

Explanation:

Answer:

b

Explanation:

i kinda think is that because of my class

An organism that has different alleles - one dominate and one recessive it's called

Answers

Answer:

An organism which has two different alleles of the gene is called heterozygous. Phenotypes (the expressed characteristics) associated with a certain allele can sometimes be dominant or recessive, but often they are neither.

Explanation:

How has the environment of this location changed since Basilosaurus lived?

Answers

The fossil shown in this photo is of a Basilosaurus. Its skeletal features suggest that it spent its entire life swimming in the ocean. Look at the environment the fossil was found in. Consider that Basilosaurus lived in the ocean

should a business owner be more interested in making money or doing what they are passionate about?why?​

Answers

Answer:

passion

Explanation:

a business owner should be interested in doing what they are passionate about because if they like something they will make more money and more customers will be attracted to their new project

how far is each planet from the sun.................

Answers

Answer:

1. Mercury: 31.197 million mi

2. Venus: 66.81 million mi

3. Earth: 92.96 million mi

4. Mars: 141.6 million mi

5. Jupiter: 483.8 million mi

6. Saturn: 890.8 million mi

7. Uranus: 1.784 billion mi

8. Neptune: 2.793 billion mi

Explanation:

Hope this helps ;}

Mercury is 57,910,000 km (0.387 AU) from the sun

Venus is 108,200,000 km (0.723 AU) from the sun

Earth is 149,600,000 km (1.000 AU) from the sun

Mars is 227,940,000 km (1.524 AU) from the sun

Jupiter 778,330,000 km (5.203 AU)


Saturn 1,424,600,000 km (9.523 AU)

Uranus 2,873,550,000 km (19.208 AU) 51,118 km

Neptune 4,501,000,000 km (30.087 AU)

what is homeostasis?

the body's way of coping of outside factors

the body's ability to heat up and cool down

the body's natural way of maintaining equilibrium or balance

the body's standard heart rate​

Answers

The body’s natural way of maintaining equilibrium or balance

Answer: C or if there is an E for all the above

Explanation: Homeostasis refers to the body’s ability to maintain a stable internal environment (regulating hormones, body temp., water balance, etc.).

which is not an example of a molecule?
a)NCI3
b)O3
c)H2O2
d) F

Answers

The answer for that is C
I believe the answer is c

Which pathogen is most likely responsible for causing hoof-and-mouth disease on livestock?

Answers

Answer:

D

Explanation:

A virus, because it requires a host cell to reproduce

What makes petroleum a nonrenewable resource?
O A. When burned, it adds pollutants to the air.
O B. It takes millions of years to form.
O c. It can be replenished within a person's lifetime.
D. When burned, it contributes to global warming.

Answers

Answer is B .it takes millions of years to form

Does anyone know what this is?

Answers

i can't im so sorry

-_-

15. What is meant by combustion?​

Answers

Answer: D.

Explanation: Please give me Brainlest Please

Check Concepts
41. Using the scientific definition, which state-
ment is always true of work?
A) It is difficult.
B) It involves levers.
C) It involves a transfer of energy.
D) It is done with a machine.

Answers

Answer: C. It involves a transfer of energy.

Using the scientific definition, the statement that is always true of work is it involves a transfer of energy. The correct option is C.

What scientific theories?

Scientific theories are the theories that are given by scientific facts and information. These theories are based on observation of natural things and places.

There is the transfer of energy in the natural world. Every organism and plant is connected with each other in the form of a transfer of energy. This is called a food chain.

In the food chain, the organism is divided into different levels. These levels are based on their food. They are autotrophs, heterotrophs, and decomposers. Autotrophs have the largest amount of energy.

Thus, the correct option is C) It involves a transfer of energy.

To learn more about scientific theories, refer to the link:

https://brainly.com/question/2375277

#SPJ6

how does the cytoskeleton help maintain cell shape?

Answers

Answer:

Of the three types of protein fibers in the cytoskeleton, microfilaments are the narrowest. ... Microfilaments also provide some rigidity and shape to the cell. They can depolymerize (disassemble) and reform quickly, thus enabling a cell to change its shape and move.

Explanation:

Specific proteins produced in a cell are directly related to the A. Number of mitochondria in the cell. B. Sequence of sugars and phosphates in the cell. C. Type of ribosomes in the cell. D. Sequence of nucleotides in the DNA of the cell.

Answers

Answer:

D. Sequence of nucleotides in the DNA of the cell.

Explanation:

Proteins are a type of biomolecules in living systems responsible for many phenotypic characteristics in organisms. Proteins are synthesized by a process called gene expression, which encompasses transcription and translation.

Using the central dogma of biology to trace, DNA (genes) contains information that encodes the production of proteins in the body. Therefore, the sequence of nucleotide bases in the DNA of a cell determines the sequence of mRNA that will be produced during transcription and ultimately, determines the specific type of proteins (amino acid chain) that will be produced in a cell during translation.

The theory of spontaneous generation held that living could arise from nonliving matter and that such processes were commonplace and regular. Observe Pasteur’s experiment. Does his experiment support or weaken the idea of spontaneous generation?

Answers

Answer:

It weakened the idea of spontaneous generation

Explanation:

I had this question on my test last week

Koalas live almost entirely on leaves from eucalyptus trees and they are native exclusively to Australia.
Destruction of the Koalas' habitat will most likely lead to -
F)) koalas producing more
offspring
G)) a decrease of the koala
population
H)) the koalas becoming larger.
J)) an increase of the koala
population.

Answers

Answer:

G

Explanation:

it will ruin the koala homes

There is a decrease of the koala population

A cell has 10% glucose outside and 2% salt inside. Describe the direction of osmosis.
1.Water will move out of the cell.
2.There will be an equal amount of water movement into and out of the cell.
3.Water will move into the cell

Answers

Answer:

1. Water will move out of the cell

- There is a higher concentration outside of the cell

2. An atom consists of 21 protons 22 neutrons and a number of electrons which
information will be MOST helpful in determining the atom's identity
The number of protons and neutrons
The number of protons
The number of electrons
The number of valence electrons
CUERALL

Answers

Answer:

the number of valence electrons cuerall

Other Questions
What is the difference between abiotic and biotic? One number is 2 less than a second number.twice the second number is 37 more than 5 times the first. Find more the two number Match the following enzymes involved in DNA replication with their functions.a. DNA ligaseb. DNA polymerasec. DNA gyrased. helicase In how many ways can you arrange the books A, B, C, and D on a bookshelf if books A and C must remain neighboring? round 6.24159 to the nearest hundredths Suppose that the age of all the U.S. first ladies when they married was recorded. The mean age of U.S. first ladies when they married would be a:________A) PopulationB) StatisticC) SampleD) Parameter Homer is 30 feet below sea level and Marge is 45 feet above sea level. Barts elevation is at the exact midpoint of those two values. What is the expression that model this problem, and which is Barts elevation? ???? , yall should know by now i HATE math so can like one of yall help out . lol if you need help with Math:) josh earned $30,000 last year if the tax rate was 15%,how much money can he keep after taxes Factor the Expression. 121x + 44 *11(10x + 4)21x + 411(11x + 44)11(11x + 4) Plz help plllzzzzzzzz how do i get motivated to do my revision and stop procrastinating DNA and RNA are both types of A. enzymesB. polysaccharidesC. proteinsD. nucleic acids What is the plot of by any other name Find the cost with sales tax for an item with a purchase price of $7. Assume that the sales tax is 8%, or 0.08 times the price.Group of answer choices Genetics is the study of genes and their inheritance. True or False 8(a+4)=___a+___ PLZ HELP IM STUCK ON THIS ellie is preheating her oven before using it to bake. the initial temperature of the oven is 65 and the temperature will increase the rate of 10 per minute after being turned on what is the temperature of the oven six minutes after being turned on what is the temperature of the oven t minutes after being turned on which is a unit rate? A. 15 miles per gallon B. 5 pounds in two bags C. $8 for three boxes of crackers D. 22 gallons in 5 days