10
Obsidian and pumice are extrusive igneous rocks and lack crystals. Why is it that these rocks
do not have crystals? *
(1 Point)
There were no minerals in the magma
The lava cooled slowly deep inside the Earth
The lava cooled too quickly above the Earth
The pressure was too great to make any crystals

Answers

Answer 1

Answer:

Hi  to the mountain

Explanation:


Related Questions

How energy moves through an ecosystem can be represented by...

A. Food chain

B. Food web

C. Energy pyramids

D. All the above

Answers

It’s D all of the above

In cellular reproduction, ___ ALWAYS occurs in 5’ to 3’ direction

Answers

Answer:

DNA replication

Explanation:

DNA replication is the process whereby the genetic material (DNA) duplicates itself into two identical copies. This process must occur prior to any cellular division (meiosis or mitosis) in order to ascertain that each daughter cell gets an even and correct amount of DNA.

The process of DNA replication begins with the unwinding of the double stranded DNA molecule into two single strands of DNA. One strand called leading strand runs from 3'-5' while the other strand runs from 5'-3'. However, DNA replication proceeds in the 5'-3' direction.

did you know that 83,915,501,421 usd are spent on illegal drugs?/!?!?

Answers

Answer:

yes iknow that do you know?

Answer:

omg I never knew that

Explanation:

wht is it

Over a long period, how might living things adapt to increased carbon dioxide levels and global warming?

Answers

Yes. We could be done for if it is anthropogenic and if it is not being caused by CO2 as we are lead to believe. CO2 may not be the only anthropogenic cause (if it is a cause).

If climate change is due to weather engineering by chem trailing in conjunction with ionospheric heating, then it could cause serious illness to our species.

The use of the electro-magnetic spectum and radio waves by ionospheric heaters, could cause genetic damage as well as infertility. Whether other sources of RF/EMF also play into weather manipulation and control is unclear. Whether the use of ionospheric heaters contributes to climate change is unclear, but it intuitively seems likely. Creating a sustaining a plasma in the ionosphere may heat up more than the ionosphere and it may have an impact on the weather.

We do not know what chemicals are being used to obscure the sun, create clouds, perhaps create rain and wind, (nor why) and therefore we do not know if those could also contribute to infertility or genetic damage when they finally wash out of the sky. We do not know if the chemicals can be absorbed through the skin, or what happens to us when we breathe them, or consume them in our drinking water or in the food we eat. Higher levels of certain metals have been measured in the soil after chem trails. It is difficult to know which tests to use to test for all the chemicals which can be used.


The region of the stem nearest the seed.

Answers

Answer:

B. Hypocotyl

Explanation:

ANSWER ALL QUESTIONS
Name four activities carried out in agriculture as an art​

Answers

Answer:

planting

measuring

weeding

harvesting

Explanation:

hope this helps

don't forget to follow me

n mark my answer

change to indirect speech
1, he said,"what a wonderful event it is!"

Answers

Answer:

he said that the event was wonderful

Which of the following is considered a disadvantage of using nonrenewable resources?
A)
they are expensive
B)
they are hard to access
C)
there is a very limited supply
D)
they can cause various environmental hazards
E)
they are not well adapted to modern technology

Answers

the answer is d

Explanation:

Answer:

d.) they can cause various enviormental hazards.

Explanation:

egd 2021

Worm 2 belongs to which category?

Acanthocephla
Ascaris
Lumbricus
Nais

Answers

Answer:

Ascaris

Explanation:

1. At which type of boundary does new oceanic crust form?
2. Why is this type of boundary also known as a constructive boundary?

Answers

Answer:

1. the boundary that the ocean crust forms is the Divergent Boundary.

2. both these plates move apart and cause earthquakes.

Explanation:

1. these boundaries are known to crash against each other causing earthquakes, but these boundaries are also form the oceanic crust.

2. when they move apart they cause earthquakes and volcano's. an example of this is the Mid- Atlantic ridge.

Through what process do eukaryotes reproduce asexually?

Answers

Answer:

It is the characteristic feature of eukaryotic cell that it reproduces sexually. But, it can also reproduce asexually. Asexual reproduction is often referred to as cell division and it occurs through mitosis. On the other hand, sexual reproduction occurs through meiosis.

Explanation:

pls tell me if im wrong ill change it

Answer:

Eukaryotes grow and reproduce through a process called mitosis. Some eukaryotic organisms also reproduce asexually through processes such as budding, regeneration, and parthenogenesis.

Explanation:

Matching type:
1. ribosome
2. smooth ER
3. mitochondrion
4. nucleus
5. Golgi apparatus
6. lysosome
7. centriole
8. cytoskeleton
9. inclusion
10. plasma membrane
11. nucleolus
a. main site of ATP synthesis
b. encloses the chromatin
c. sac of digestive enzymes
d. examples include glycogen granules and ingested foreign materials
e. forms basal bodies and helps direct mitotic spindle formation
f. site of protein synthesis
g. forms the external boundary of the cell
h. site of lipid synthesis
i. packaging site for ribosomes
j. packages proteins for transportation
k. internal cellular network of rodlike structures

Answers

Answer:

1. ribosome---- f. site of protein synthesis

2. smooth ER---- h. site of lipid synthesis

3. mitochondrion---- a. main site of ATP synthesis

4. nucleus---- b. encloses the chromatin

5. Golgi apparatus---- e. forms basal bodies and helps direct mitotic spindle formation and j. packages proteins for transportation

6. lysosome---- c. sac of digestive enzymes

7. centriole---- k. internal cellular network of rod like structures  

9. inclusion---- d. examples include glycogen granules and ingested foreign materials

10. plasma membrane---- g. forms the external boundary of the cell

11. nucleolus---- i. packaging site for ribosomes

Explanation:

Ribosome is considered as a site of protein synthesis,  smooth endoplasmic reticulum is the site of lipid synthesis , mitochondria is the main site of ATP production, nucleus encloses the chromatin material inside it,  Golgi apparatus forms basal bodies and helps direct mitotic spindle formation and also packages proteins for transportation,  lysosome is a sac of digestive enzymes , centriole consists of internal cellular network of rod like structures  , inclusion has examples include glycogen granules and ingested foreign materials,  plasma membrane forms the external boundary of the cell  and nucleolus has the function of packaging site for ribosomes.

ribosome - f. site of protein synthesissmooth ER - h. site of lipid synthesismitochondrion - a. main site of ATP synthesisnucleus - b. encloses the chromatinGolgi apparatus - j. packages proteins for transportationlysosome - c. sac of digestive enzymescentriole - e. forms basal bodies and helps direct mitotic spindle formationcytoskeleton - k. internal cellular network of rodlike structuresinclusion - d. examples include glycogen granules and ingested foreign materialsplasma membrane - g. forms the external boundary of the cellnucleolus - i. packaging site for ribosomes

The functions of various cell organelles are as follows: Ribosome is responsible for protein synthesis, smooth endoplasmic reticulum synthesises lipids, mitochondria produces ATP, nucleus encloses chromatin material, Golgi apparatus forms basal bodies and aids in mitotic spindle formation and protein packaging for transportatio.

Lysosome contains digestive enzymes, centriole is composed of a cellular network of rod-like structures, inclusion contains glycogen granules and foreign materials, pla

Learn more about ribosome, here;

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An Autotroph get energy from the sun, not from food.
Tue
False

Answers

Answer:

True

Explanation:

Which of the following best explains how the prokaryotic expression of a metabolic protein can be regulated when the protein is already
present at a high concentration?

Answers

Answer:

A. Repressor proteins can be activated and bind to regulatory sequences to block transcription.

Explanation:

its A

The best explanation for the prokaryotic expression of a metabolic protein is repressor proteins can be activated and bind to regulatory sequences to block transcription.

What are metabolic proteins?

Protein helps with growth and repair. Proteins have the potential to serve as a metabolic fuel source in addition to all of these important functions.

Excess proteins must be converted into glucose or triglycerides and used to provide energy or build energy reserves because proteins cannot be stored.

Thus, the correct option is A.

Learn more about metabolic proteins

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what is required for the initiation of an enzyme

Answers

Answer:

RNA poly merase

Explanation:Transcription begins when RNA polymerase binds to a promoter sequence near the beginning of a gene (directly or through helper proteins). RNA polymerase uses one of the DNA strands (the template strand) as a template to make a new, complementary RNA molecule. Transcription ends in a process called termination.

During follicular phase which hormones have highly secreted in mentrual cycle​

Answers

Answer: The follicular phase of the menstrual cycle is defined as the first day of menstruation until ovulation. It is initiated by a rise in follicle-stimulating hormone (FSH) levels at the first day of the cycle. This is triggered by a decrease in progesterone and estrogen (which act to inhibit FSH secretion).

Explanation: hope this helps

Why does a cell need to copy its DNA before undergoing mitosis?

Answers

Because existing cells need to divide to produce new cells. So the DNA needs to be copied before the cell division so that each new cell receives a full set of instructions.

May someone help with this match each one pls

Answers

i dont see a picture?? upload it again

What is the species name for pezizales

Answers

The Pezizales are an order of the subphylum Pezizomycotina within the phylum Ascomycota.

PLEASE HELP ME ASAP :(

Answers

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Answer:  C that protists are single-celled organisms

Explanation:

I hope this helped!

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Indicate whether each of the following occurs mainly in G1 phase (G), S phase (S), or G2 phase (H) of the cell cycle. Your answer would be a four-letter string composed of letters G, S, and H only, e.g. HGSS. ( ) DNA helicase activation ( ) DNA helicase deposition on DNA at the replication origins ( ) ORC phosphorylation ( ) Licensing of replication origins

Answers

Answer:

the answer is S-G-S-G  

Explanation:

DNA helicases are enzymes that catalyze the unwinding of the double DNA helix in order to form a replication fork at the origin of replication (i.e., the site where DNA replication starts). DNA replication occurs in a bi-directional manner by two replication forks that move in opposite directions in order to form a replication bubble. The origin of replication is formed during the transition from mitosis to G1 when they are licensed for the subsequent S phase. The origin recognition complex (ORC) is a DNA binding complex that binds to the origin of replication, whose function is to act as a scaffold for the assembly of initiation factors. ORC is phosphorylated during the beginning of the S phase in order to dissociate this complex from chromatin.

Bacteria are unicellular?

-False
-True

Answers

Answer:

True

Explanation:

Answer:

True

Explanation:

I hope this helps.

What are the bonds of dna

Answers

Answer:

The bonds are covalent and hydrogen.

~Hoped this helped~

when a cell goes through mitosis and cell division, the two new cells have _?

Answers

Answer:

D. Same number of chromosomes as the original cell

Explanation:

Mitosis is a kind of cell division which results in two daughter cells that are genetically identical to one another and the parent cell. Mitotic division causes each daughter cell to contain the SAME NUMBER OF CHROMOSOMES as the parent cell.

For example, a somatic human cell contains 23 pairs of chromosomes. If this cell undergoes division by mitosis, the two daughter cells that will result will contain 23 pairs of chromosomes each. This means that the two new cells that results from mitosis have the same number of chromosomes as the original cell.

4. Which of the following statements about magnetic materials TRUE?
A, Magnetic materials will attract other magnetic materials,
B, Magnetic materials will be attracted to magnets,
C. Magnetic materials will be repelled by magnets,
D, Magnetic materials will repel other magnetic materials,

Answers

Answer:

All of them seems true tho

Answer:

B I think..

Explanation:

What is the main cause of a human-created mass extinction?

Answers

The main cause of a human mass extinction is the asteroid impact sorry if I’m wrong

Answer:

d

Explanation:

an increase in the human population


A massive farm near our school has recently had a
decrease in crop production (e.g., not as many plants are
successfully growing). A soil ecologist was notified. She
immediately noticed that there were no worms, bacteria, or
other microorganisms in the soil, even though she knew that
many organisms were present in the soil five years ago. Based
on this information, she would probably say that the population
density of microorganisms had
a. Increased
b. Decreased
c. Immigrated
d. None of the above

Answers

Answer:

C. Immigrated

Explanation:

The plants stopped growing, so I imagine the microorganisms moved to find a better food source.

From DNA to protein involves which series of events?Which of the following correctly describes the locations of transcription and translation within a eukaryotic cell?

Answers

Answer:

DNA istranscribed in the nucleus, then the mRNAtranscript is transported to the cytoplasm to be translated into protein.

Explanation:

I hope that this is what you were looking for

Do carriers for a recessive disorder have the disorder?
O sometimes
O yes
O no

Answers

Sometimes, because a carrier is someone who carries the disorder and can pass it on but they may or may not have symptoms themselves

Choose the statements that are TRUE about Surface Tension..

a. It is a measure of how difficult it is to break the surface of a liquid.
b. It causes water drops to be nearly round (perfect spheres in zero gravity situations!)
c. It helps keep water flowing through a living thing.
d. It occurs because water molecules are bonded to other water molecules and you have to break that bond to break them apart.

Answers

Answer:

d

Explanation:

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Frodo goes to New Army and buys two pairs of jeans for $19.99 each, 3 shirts at $7.99 each, and a pack of socks for $5. He has acoupon for 25% off his entire purchase. Sales tax is 7 %. What is the total cost after the discount and tax? $ 109points plsss helpppppp now Marty and Becky are in the mood to have a hamburger for lunch. Marty wants to grill the hamburger outside instead of cooking it on top of the stove because he says he likes the taste of a grilled hamburger more than one cooked on top of the stove. The difference in taste Marty prefers is actually caused by the smell of the charcoal embedded into the hamburger. This is an example of sensory _____. Please type the correct answer in the following input field, and then select the submit answer button or press the enter key when finished. O'Brien writes that what he remembers of Curt Lemon's death is Jensen's song. Why do youthink this is the case? What is the significance of this memory? Question 8 is the one Im having trouble on it the volume of a cube is 2,197 cubic feet. what is the length of each side of the cube? (pls give an explanation) hi please answer this xoxo will mark brainliest As a result of a thorough physical inventory, Sheridan Company determined that it had inventory worth $320800 at December 31, 2020. This count did not take into consideration the following facts: Herschel Consignment currently has goods worth $46300 on its sales floor that belong to Sheridan but are being sold on consignment by Herschel. The selling price of these goods is $74900. Sheridan purchased $22000 of goods that were shipped on December 27, FOB destination, that will be received by Sheridan on January 3. Determine the correct amount of inventory that Sheridan should report. 1A.) Assume a simple economy where only burgers are traded. In a year, 100 burgers are traded at the rate of $5 per burger. Assume two scenarios:a. The economy has $100 in the form of 20 pieces of $5 bills.b. The economy has $100 in the form of 100 pieces of $1 bills.Calculate the velocity of money for both situations.1B.) For a country A, the GDP growth rate is 8 percent and inflation is 4 percent. If the velocity of money remains constant, what is the change in real money balances? What types of aquatic ecosystems are there?What are the similarities and differences between them? Just chillin' at the max 32-bit limit with two answers... The probability distribution for arandom variable x is given in the table.-10-505101520Probability.20.15.05.1.25.1.15Find the probability that x = -10 A circular swimming pool has a radius of 20 feet. A fence is going to be built so that there is a 4-foot space around the entire pool. What is the length of the fence? Sunitha solved the problem as shown. A circle with radius 20 feet. A larger circle is 4 feet larger than the smaller circle. Radius = 24 feet. Circumference = 24 pi. What was her error? She should have used 12 in the formula, not 24. She forgot to multiply the radius by 2 in the formula. She did not add the additional fence length to the pools radius. She should have used 4 ft in the formula. Grendel and the dragon wage war for different reasons. What are these reasons? How are these different motivations related to the underlying themes of the epic? What character traitsdescribe Dorthea Dix? Cual es la fuerza de 225n y 165n Which sentences contain a word with a suffix? Check all that apply.My friend's happiness is important to me.I will visit my friend at her home.Her smile brightens the room.We will talk about her new book.Her joyfulness delights me. The graph below shows a company's profit f(x), in dollars, depending on the price of goods x. in dollars, being sold by thecompany:Part A: What do the x-intercepts and maximum value of the graph represent?Part B: What are the intervals where the function is increasing and decreasing, and what do they represent about the sale andprofit?Part C: What is an approximate average rate of change of the graph from x = 1 to x = 3, and what does this rate represent? [tex]y= 82(1.045)[/tex]What is the rate of growth Michael expects each week after launching the website?y=82(1.045) Quadrilateral ABCD is inscribed in a circle. Find the measure of each of the angles of the quadrilateral. Showyour work. URGET: Inscribed Angles Find the measure of angle R.