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

A member of a population of genetically identical organisms that were produced from a single cell.



a
bacteriophage
b
clone
c
transgenic
d
restriction enzyme

Answers

The correct answer is B

What is a virus and what cause a viruses​

Answers

Meaning:A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.

Causes: Viral infections occur when a virus enters the body and invades the inside of the body's cells in order to reproduce. If the body's immune system is unable to fight off the virus, it multiplies and spreads to other cells, repeating the process and leading to a widespread infection.
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea

Answer the following questions:
1. How does motion help us in our daily life?
2. How would you be able to help those people who cannot move due to
paralysis​

Answers

Answer:

1. Lack of motion is death. Movement is a vital nutrient to your body, just as much as food, water, and oxygen.

2. Potassium supplements can prevent attacks of paralysis.

Explanation:

The stage of mitosis where the chromosomes line up

Answers

Answer:

Metaphase

Explanation:

Chromosomes line up at the metaphase plate, under strain from the mitotic shaft. The two sister chromatids of every chromosome are caught by microtubules from inverse shaft posts. In metaphase, the shaft has caught every one of the chromosomes and arranged them at the center of the cell, prepared to separate.

Answer:

It is metaphase.

Explanation:

In metaphase (a), the microtubules of the spindle (white) have attached and the chromosomes have lined up on the metaphase plate. During anaphase (b), the sister chromatids are pulled apart and move toward opposite poles of the cell.

How does a single fertilized egg cell develop into so many
different types of specialized cells?

Answers

Answer:

it hatches and the baby comes out

See below, b represents

Options
water

glucose

oxygen

CO2

Answers

Answer:

CO2

Explanation:

CO2 is needed to produce glucose

In the fantastic Jillalope, the offspring of a true-breeding black parent and a true-breeding white parent all appear gray. When these gray offspring are crossed among themselves, their offspring always appear in a ratio of 1 black : 2 gray : 1 white. Upon close examination of the coats with a magnifier, each hair of a gray animal has closely-spaced alternating black spots and white spots, but no gray spots. What is the mode of inheritance

Answers

Answer:

Co-dominance

Explanation:

Due to technical problems, you will find the  complete explanation in the attached files

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.

The Chesapeake Bay, which is along the coast of the Eastern U.S., is the largest estuary in the country. Many rivers, including the Potomac, empty into this section of the Atlantic Ocean.

During the 1970s, areas of the bay were found to have low levels of oxygen and could not support life. What was the cause of this problem?

Answers

Answer: B. High levels of nitrogen and phosphorus from agriculture runoff, sewage, and etc

Explanation:

i did it off study island

Without doing a Punnett square, predict what percentages of
offspring the cross among a heterozygous slipper footed
pigeon and a non-slipper footed would create:

Answers

Answer:

50% slipper footed, 50% non-slipper footed

Can someone help???? Question: In what domain would humans be included?

Answers

Answer:

Eukarya

Explanation:

domain Eukarya
hope this helps

Why is it important that tissues are composed of specialized cells?

Answers

Cell specialization allows new cells to develop into a range of different tissues, all of which work together to make living organisms function as a whole. The process of cell specialization exactly how cells develop into their diverse forms is complex.

how does the anti tetanus serum prevent tetanus

Answers

Answer: It is used to prevent tetanus in those who have a wound that is at high risk and have not been fully vaccinated with tetanus toxoid. It is also used to treat tetanus along with antibiotics and muscle relaxants. It is given by injection into a muscle.

Explanation:

a medication made up of antibodies against the tetanus toxin. It is used to prevent tetanus in those who have a wound that is at high risk and have not been fully vaccinated with tetanus toxoid. It is also used to treat tetanus along with antibiotics and muscle relaxants.

chloroplast illuminated with strong light will show a large oval white starch formation within chloroplast. Would you expect the plant in which this structure was found to have been illuminated with strong light immediately before it was prepared for electron microscopy

Answers

Answer:

trees

Explanation:

Which of the following occurs first in meiosis?
1. Homologous chromosomes line up in the center of the cell.
2. Chromosomes line up in the middle of each cell.
3. Crossing over between segments of homologous chromosomes.
4. Chromosomes are pulled to opposite poles of the cell.

Answers

Answer:

Crossing over between segments of homologous chromosomes.

Explanation:

Crossing over happens during prophase I of meiosis I

Please help!!!! 20 points

Answers

Answer:

Producers: Leaves and the other plant thing (i don't know the name of it)

First-level consumers: Squirrel, grasshopper, rabbit, rat

Second-level consumers: Frog, rat

Third-level consumers: Fox, owl, snake

Herbivores: Grasshopper, rabbit, squirrel

Carnivores: Frog, fox, snake, owl

Omnivores: Rat

In the figure above which fatty acids are most likely to be solid at room tempearture

Answers

What figure? U have to attach something so I can help

Which of the following best describes a population?
A. All of the seagulls that live along the coast
B. All of the seagulls that live along the coast, the fish they eat, and the water
C. All of the seagulls that live along the coast and the fish they eat
D. All of the seagulls that live along the coast, as well as the sand and the water

Answers

Answer:

I think that the answer might be C

Answer:

I mean it looks like B to me but I could be wrong. :)

Explanation:

Most professional sportsmen and sportswomen do not smoke.
Explain why:

Answers

um I think because it’s is bad for your lungs and breathing aka your health!

What is parturtion and lactation???​

Answers

Answer:

It is the process of production of milk by the mammary glands at the end of pregnancy. The milk produced initially by the glands is called colostrum. This milk is crucial for the baby as it provides the child with the initial immunity. This was a brief explanation of pregnancy, parturition, and lactation.

Explanation:

i hope this helps.... I found these

You have isolated a bacterium from a contaminated river but you are unable to culture it in the laboratory. Which method could you use to identify the organism

Answers

Answer:

DNA sequencing

Explanation:

DNA sequencing is the method which can be used in order to identify the bacterium that was isolated from the contaminated river. DNA sequencing is the process in which the sequence of nucleotides is determined that is present within a DNA molecule. For identifying the bacterium, the sample of bacteria is collected. After sample collection is completed, genomic DNA is extracted from the bacteria and DNA sequencing will be done of that bacteria.

how does the structure of simple cuboidal connect to its function

Answers

Answer:

Simple cuboidal epithelial tissue is specialized for diffusion and absorption. The reason our kidneys function the way they do is because of the movement of water and salts in and out of the kidney tubules.Likewise, the cuboidal shape of the cells allows greater surface area for absorption to take place.

What's the side effects of the flu vaccine nasal spray

Answers

Runny nose, headaches and nausea

We have 13 different clotting factor proteins in our blood. Do you think hemophilia is controlled by one or multiple genes?

Answers

Hemophilia A and hemophilia B are inherited in an X-linked recessive pattern . The genes associated with these conditions are located on the X chromosome, which is one of the two sex chromosomes . In males (who have only one X chromosome), one altered copy of the gene in each cell is sufficient to cause the condition. Basically it's whatever you believe it is.

Please help me with this biology thing.

Answers

Answer:

Answer:

1.

a)dd

b) dd

c) 0%

2.

a) 25%

b) 75%

c) 25%

3.

a) 03

b) 0

c) tt

4.

a) FF x ff OR FF x Ff OR FF x FF

b) Because all the children have freckles

Which of the following is needed for cellular respiration?
carbon dioxide, water, and sunlight
water, oxygen, and glucose
water, glucose, and carbon dioxide
oxygen and glucose

Answers

Answer:

The answer is oxygen and glucose

answer sheet of Grade 10 science what I have Learned module 2 Quarter 3​

Answers

i’m sorry but i would like to help but this got me lost

What do all fossil fuels have in common?
O A. They are all burned when used as energy sources.
O B. They are all renewable energy sources.
O C. They all produce oxygen as a combustion product.
O D. They all contain methane.

Answers

All fossil fuels have common feature that they are all burned when used as energy sources.

Fossil fuels Fossil fuels are made from decomposing plants and animals. These fuels are hydrocarbon- containing materials which are found in Earth's crust.Examples of fossil fuels include coal, oil, petroleum hydrocarbons, natural gas etc.They all are burned for energy.They all have hydrogen and carbon in common.They are non-renewable energy sources.They all have different composition other than having hydrocarbon group.All produces different combustion products according to their composition.

To learn more about fossil fuels :

https://brainly.com/question/3582182

#SPJ2

Probes that bind under very stringent hybridization conditions resulting in the differential binding over one nucleotide are called ________. Probes that bind under very stringent hybridization conditions resulting in the differential binding over one nucleotide are called ________. short, variable repeats VNTRs microsatellites allele-specific oligonucleotides (ASOs) generation-specific probes

Answers

Answer:

allele-specific oligonucleotides (ASOs)

Explanation:

An allele-specific oligonucleotide (ASO) is a piece of synthetic DNA that is short and usually a complementary to the sequence of a target DNA, It is an oligonucleotide of 15–21 nucleotide bases in length.

It acts as a probe in southern blot assay or simpler Dot blot assay to identify the presence of a target.

It is an important research tool in genetic testing, forensics, and Molecular Biology.

The probes can detect a difference of as little as 1 base in the sequence targeted.

You are trying to determine the mode of inheritance for the mutant curly-winged phenotype in Drosophila. You cross pure-bred wild-type flies with pure-bred mutant (curly-winged) flies and notice that all of F1 has curly wings. You make the scientific hypothesis that the curly-winged phenotype is autosomal dominant to the wild-type wing phenotype. a. If your scientific hypothesis is correct, what ratios would you expect to see in your F2 generation?

Answers

Answer:

The correct answer is - In F2 generation we should get a 3:1 ratio of phenotypes. 3 curly dominant, 1 wild type recessive.

Explanation:

In the given case, the cross between pure-bred wild-type flies with pure-bred mutant (curly-winged) flies and it is found that in F1 generation all offsprings are curly wings which means curly wings are dominant over wild-type.

let assume w gene is responsible for wild type and W gene is responsible for the curly wings which is dominant over wild type

     W   W

w    Ww  Ww

w  Ww   Ww

now on self crossing

     W   w

W   Ww  Ww

w   Ww  ww

In f2 generation there are 75% chances of the curly wing and 25% chances of wild type or the ratio of phenotype would be 3:1

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