Is pumice a mineral, a rock, or neither?
This is science

Answers

Answer 1

Answer:

rock

Explanation:

pumaspumas is a powder or dust form is a volcanic rock that consists of highly vascular rough textured volcanic glass and may or may not contain crystals it is typically light colored

Answer 2

Answer:

Pumice is an igneous rock.

Explanation:


Related Questions

What biological process causes new strains of pathogen to develop

Answers

Hlo.....I’m new in Brainly

Plzzzz thnx my other 2-3 ans plzzzz

It involves
(1) disassembly of the infectious virus particle,
(2) replication of the viral genome,
(3) synthesis of the viral proteins by the host cell translation machinery, and
(4) reassembly of these components into progeny virus particles.

As DNA polymerase adds new nucleotides it's creating a new nucleic acid polymer. What kind of reaction is this enyme facilitating?

A. hydrolysis

B. dehydration

C. catalysis

D. exothermic

Answers

Answer:

C. Catalysis

Explanation:

The polymerase catalyzes the nucleophilic attack of the 3′ hydroxyl group terminus of the polynucleotide chain on the α-phosphate group of the nucleoside triphosphate to be added

A large region that has a particular type of climate that effectively influences the types of plants and animals that inhabit each ecosystem is a(n) ___________________.

Answers

I think this is a biome

what are the two main organs involved in the respiratory system?​

Answers

Answer: The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs, and blood vessels. The muscles that power your lungs are also part of the respiratory system.

Explanation: Your respiratory system is the network of organs and tissues that help you breathe. This system helps your body absorb oxygen from the air so your organs can work. It also cleans waste gases, such as carbon dioxide, from your blood. Common problems include allergies, diseases or infections.

What is the respiratory system?

The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs, and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean out waste gases like carbon dioxide.

nose and lungs i think

What are the two chemicals that the body makes out of tryptophan? What do these two chemicals do?

Answers

Answer:

MAKE AN EXPLOSION HONESTLY

Explanation:

can anybody can say these qusion answer ​

Answers

Business, finance, real estate ect

Answer  i don't know i think it is ansmals

Explanation:

Which of the following are examples of asexual reproduction?
Select all that apply.
☞︎ a plece of a cactus falling to the ground, taking root

☞︎ a male and female organism producing offspring together

☞︎ a bacterial cell dividing

☞︎ a bacterial cell sharing a plasmld with a different bacterial cell

꧁Plz select all apply, thank you꧂

Answers

The last 2 answers I believe and Srry if I’m not right
C and D I believe, hope it’s right

Suppose you try to heat your house using a fireplace in one of the rooms. Would a fan be helpful?

Answers

yes it would blow heat around the house ....................

Answer:

Yes it will

Explanation:

If You Have a Fireplace or Wood-Burning or Pellet-Burning Furnace. First, if you also have forced air, turn the fan on to help circulate heat. Make sure your ceiling fans rotate clockwise so they pull cool air up off the floor and push warm air down. And also keep them running at their lowest speed.

hope this helped! :)

1) Gregor Mendel created the law of independent assortment, that genes are distributed from parent to offspring independently of only another. Which characteristic of Meiosis primarily causes this, and what phase does it occur during?

a. Homologous pairs form and align, during Interphase
b. Crossing over occurs between Homologs, during Prophase 1
c. Meiosis enters a second round of splitting, during Prophase 2
d. Chromosomes are separated into 4 separate cells, during Anaphase 2

2) Which of the following is a Homo-zygous Genotype?

a. GG
b. Gg
c. gg
d. both A and C

3) A red flower (RR) is crossed with a red flower (rr). What are the chances for each type of offspring by GENOTYPE.

a. 25% RR, 50% Rr, 25% rr
b. 50% Rr, 50% rr
c. 100% Rr
d. 100% Red offspring

4) In Genetics, Dominant and Recessive are terms used to describe the relative strength of a specific trait. Which of the following is true for the term “recessive”?

a. Recessive genes can be masked by dominant genes
b. Recessive genes are always visible
c. In order to have a recessive trait, your parents must display that trait
d. Recessive genes show up later in life

5) Two Monsters, Hagatha and Urman, are expecting a child together. Hagatha is Hetero-zygous for Sharp claws, while Urman is Homo-zygous Recessive for Dull claws. Which of the following correctly identifies the Genotypes of both monsters? (use D or d to represent claw alleles)

a. Hagatha is Dd, Urman is dd
b. Hagatha is Dd, Urman is DD
c. Hagatha is DD, Urman is Dd
d. Hagatha is DD, Urman is dd

Answers

2 = d

3 = a

4 = a

5 = a

I am not so familiar with 1 and 3 sry

Homzygous means two identical alleles so a and c are both homzygous

recessive genes are not expressed if a dominant allele is present but with be expressed if the no dominant allele is present.

If you do a cross test you can determine the percentage.

Hagatha is heterozygous meaning non identical allele like Dd or dD and the other is homzygous recessive meaning that it has identical allele like DD or dd but it's recessive so it's dd.

I hope I helped you helped you enough

When you don't consume enough protein, your body will start using your muscles and organs as a source of protein. True

Answers

Answer:

I think it's true

Explanation:

hope this helps:)

Answer:

True

Explanation:tell me if i am wrong

2.
Which statement explains how producers are dependent upon consumers for their survival?

Answers

Answer:

Consumers supply oxygen for producers to undergo aerobic respiration. Consumers produce carbon dioxide for producers to use during photosynthesis.

Consumers provide chemical energy needed by producers for cellular respiration.

Tell me if you still coudnt understand!

Which is a renewable source?

Answers

Answer:

wood

Explanation:

You can grow trees quickly, but it takes the Earth a long time to create petroleum, iron, and coal.

Changes in the number of chromosomes or the structure of a chromosome are called _____ mutations.

Answers

Answer:

Chromosomal mutations

Chromosome mutation

A sperm cell follows which path
A) seminiferous tubules, epididymis, vas deferens, urethra
B) urethra, vas deferens, ) seminiferous tubules, epididymis
C) seminiferous tubules, vas deferens, epididymis, urethra

Answers

Answer:

I believe its C

Explanation:

hope this helps

What is bob ross plus barney equal?

Answers

Answer:

an anoying dinosaur

Explanation:

Answer:

bobby

Explanation:

which part of thr mitochondrion does an electron transport chain occur?​

Answers

Answer:

Electron transport chain is the series of the cycle of the transfer of electrons from the one complex to other complex of the cycle. Both oxidation and redo reaction occurs in the electron transport chain.

The process of electron transport chain occurs in the inner mitochondrial membrane. All the complexes and the substrate of the cycle are embedded in the inner mitochondrial membrane. ATP is produced by this cycle located in the inner mitochondrial membrane.

Explanation:

If someone stole your DNA, could they steal your identity?

Answers

Yes

Criminals might steal DNA to use the genetic identity of their victim

Answer:

yes and no

Explanation:

if someone actually stole your DNA you wouldn't be alive right now,

but if someone stole "parts" of your DNA you would still be the same person because it doesn't matter what you look like you are your own person an example of this are identical twins, identical twins share the same exact DNA but they aren't the exact same person since they both can like different stuff and have different personalities. but if you mean in a biological stand point "if someone stole your DNA, could they steal your identity" of course not, at least not with our technology.

also what an odd question I like it :)

Why has the amount of space junk increased so much in the last 2 years?

Answers

Answer:

Humans

Explanation:

Because we humans are wasteful and put stuff into the atmosphere that doesn't belong there.

Answer: you didn’t provide the multiple choice but

Explanation:

The amount of space junk has increased due to a sudden increase in lost rockets and broken satellites

Lowercase letters represent _______________ alleles.

A] Recessive


B] Dominant

Answers

Answer:

recessive

Explanation:

think of it this way large uppercase letters are more dominant vs. small lowercase recessive letters. dominant large and overpowering recessive small and easy to shadow.

Do either of your diseases in part A have the same pattern of inheritance as the model of the colorblindness mutation you made? How do you know?
A picture of part A is down below

Answers

Most commonly, color blindness is inherited as a recessive trait on the X chromosome. This is known in genetics as X-linked recessive inheritance. As a result, the condition tends to affect males more often than females (8% male, 0.5% female).

Answer:

Most commonly, color blindness is inherited as a recessive trait on the X chromosome. This is known in genetics as X-linked recessive inheritance. As a result, the condition tends to affect males more often than females (8% male, 0.5% female).

How would you finish the last sentence? What would you say to Sherman so he understands that velocity and force are different? Write a response and be prepared to share it with a partner.

Answers

Answer:

Velocity is a speed while force is a push or pull.

Explanation:

Velocity refers to the speed of an object in a specific direction whereas force is a push or pull in order to move an object one place to another. When we apply force on an object, the object moves in the direction of force applied so this moving is known as velocity. The unit of velocity is meter/ second whereas unit of force is newton which is equal to kilogram meter / second square.

Answer:

Velocity is a speed while force is a push or pull.

Explanation:

Velocity refers to the speed of an object in a specific direction whereas force is a push or pull in order to move an object one place to another. When we apply force on an object, the object moves in the direction of force applied so this moving is known as velocity. The unit of velocity is meter/ second whereas unit of force is newton which is equal to kilogram meter / second square.

Explanation:

DNA polymerase and RNA polymerase are enzymes. They belong to the macromolecule category

Answers

Answer:

Catalysts

Explanation:

Both catalyze the reactions

DNA polymerase and RNA polymerase are enzymes. They belong to the catalyst category.

What type of macromolecule is RNA polymerase and DNA polymerase?

RNA polymerase is an enzyme that creates RNA and catalyzes the initiation and elongation of RNA chains from a DNA template.

RNA is formed by a process known as transcription.

DNA polymerase is a type of enzyme that is responsible for creating new duplicates of DNA, in the form of nucleic acid molecules.

Nucleic acids are polymers, which are big molecules produced up of smaller, repeating units that are chemically related to one another.

Thus, DNA polymerase and RNA DNA polymerase and RNA polymerase are enzymes. They belong to the catalyst category.

To learn more about polymerases click here:

https://brainly.com/question/1037413

The kinetic theory states that particles are in constant _______________.
Choose one answer.
a. Opposition
b. Motion

Answers

Answer:

Motion

Explanation:

Kinetic particles are always in motion, that should just be the fundamental law of kinetic energy

The kinetic theory states that particles are in constant motion

b. Motion

would the co2 molecules be able to leave faster if the cell had a smaller volume or larger volume

Answers

Answer: smaller volume

Explanation:

Small distance the co2 has to travel

Meiosis occurs in a series of different phases and creates genetically unique reproductive cells.



Which process helps make meiotic cells genetically different and occurs during prophase I, but not during prophase II?
fertilization
independent assortment
crossing over
chromosome replication

Answers

Answer:

Meiosis occurs in a series of different phases and creates genetically unique reproductive cells. The process which helps make meiotic cells genetically different and occurs during prophase I, but not during prophase II, is crossing over (C). Crossing over is the exchange of genetic material between two homogenous chromosomes. It is one of the final phases of prophase I. This process is called synapsis. It occurs when the matching regions on the matching chromosomes break and then reconnect to the other chromosome .

The process that helps to make meiotic cells genetically different and occurs during prophase I is called crossing over.

Crossing over, also known as recombination, is the interchange of genetic material between non-sister chromatids of homologous chromosomes.

This process (crossing over) occurs in Meiosis I, specifically during Prophase I.

Crossing over during Prophase I and the independent assortment of homologous chromosomes during Metaphase I represent meiotic processes that help to increase genetic variation in gamete (sex) cells.

In conclusion, the process that helps to make meiotic cells genetically different and occurs during prophase I is called crossing over.

Learn more in:

https://brainly.com/question/7002092

Which of the following describes a type of cell division that produces cells used in sexual
reproduction?
A. mitosis
B. meiosis
C. binary fission
D. cell splitting.

Answers

Answer:

b

Explanation:

Answer:

A) Meiosis

Explanation:

I believe you are asking about what type of cell division produces cells with half the number of chromosomes aka eggs and sperm.  Meiosis is the process that creates these cells.

All of the following can interfere with the breakdown of organic waste material in the soil except:
A
minerals
B
solvents
C
plastics
D
pesticides

Answers

a. minerals
because it’s the only one not harmful to soil. it would instead help the soil breakdown organic waste.

f nitrogen and hydrogen combine in a combustion reaction, what would the product of the reaction be?

CH4 + 2O2 →
2 + 2H2O

Answers

Answer:

NH3

Explanation:

When hydrogen and nitrogen react it forms ammonia which is also as Haber's process

Remember, when working with combustion reactions the products are almost ALWAYS
CO2 + H2O.

Your equation should now be:

CH4 + 2 O2 -> CO2 + 2 H2O

Note: this equation is balanced

If we’re talking about combining Nitrogen and Hydrogen in a reaction, it would synthesize to form ammonia (NH3)

The chemical equation for that would be:

N2 + H2 -> NH3

Balanced chemical equation:

N2 + 3 H2 -> 2 NH3

(If you’re wondering where the 2’s come from in N2 and H2, it’s because they are known as diatomic elements.

Diatomic elements are:

Hydrogen
Oxygen
Bromine
Fluorine
Iodine
Nitrogen and
Chlorine

•To make it easier to memorize remember the acronym, HOBrFINCl.

•When these elements are seen individually in a chemical equation the 2 at the bottom (aka subscript) is placed.

Hope this helps. If you have any questions please let me know in the comments.

Choose all the answers that apply.
Binary fission _____.
is the type of reproduction used by bacteria
occurs in organisms that do not have a membrane bound nucleus
is a type of sexual reproduction creates identical copies of the parent cell
is a type of asexual reproduction

Answers

Explanation:

occurs in organisms that do not have a membrane bound nucleus. Explanation: Binary fission is an asexual mode of reproduction. As it does not involve formation and fusion of gametes.

Answer:

Binary fission _____.

Occurs in organisms that do not have a membrane bound nucleus

Is a type of sexual reproduction

Is a type of asexual reproduction

Explanation:

What will most likely happen if the plankton population decreased in this ocean system?

Answers

Answer:

B since shrimp rely on plankton as a food source.

Explanation:

Shrimp feed on plankton if the population of plankton decreased the shrimp would have little to no food there for the population of shrimp would also decrease
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