Which of the following is NOT a way igneous rocks are classified?

Question 2 options:

By their texture (example: glassy, rough, porous)


By their composition


By the amount of silica


By their color

Answers

Answer 1

Answer:

By the amount of silica

cause igneous rock is classified by their color, texture and chemical composition


Related Questions

observe the given relation and fill in the blanks cucumber: tendril citrus: meiosis: reduction division mitosis:​

Answers

Answer:

citrus: thorns

mitosis: equational division

Explanation:

From the relationship:

Tendrils are thread-like appendages found in most climbing plants. They primarily function as supporting organs for climbing plants (such as cucumber) by stretching out and twinning around physical supports. The equivalence of this in citrus is the thorn.

Meiosis is a reductional cell division in which the chromosome number of the daughter cells is half of that of the other cells. Mitosis is equational division because the chromosome number of the parent cell is the same as that of daughter cells.

One of the major factors influencing the enrichment of reservoirs is,

Sodium

Chlorine

Nitrogen

Hydrogen

Answers

No it’s nitrogen. As it’s also a limiting factor.

The weirdest laws in the world gets brainliest. Look up the weirdest laws in the world and either post it in the comments or as an answer.

I don't want anything inappropriate or I will report you!

Answers

Answer:

Parliaments famous Salmon Act of 1986 states that it's illegal to hold salmon under suspicious circumstances.

what are the basic units of a chemical element called

Answers

Answer:

atoms

Explanation:

atoms are the smallest unit of an element

In a forest ecosystem, spotted owls make their homes in the cavities of dead trees. Thissame habitat is home to the rodents that the owls feed on. Human activities, such as logging,have caused the population of the spotted owl to decline. From this information, what statement BEST explains the relationship between humans and the spotted owl

Answers

Options are given in the comment section:

Answer:

The correct answer is - Humans have taken away resources needed by the owls, so there are fewer owls.

Explanation:

In this question, it is established that the trees are the habitat for the owls, and also these trees help in their food resources as these trees are habitat of rodents also.

By logging, humans destroy the habitat of both owls and rodents they feed on and important for their growth and survivability. Humans have caused the removal of required resources for the owls therefore, there are fewer owls.

A population of birds lives on a small island. Another population of the same species lives on the mainland. The
distance between the island and the mainland is too great for birds to fly back and forth. Recently, a series of
sandbars and tiny islands have formed between the island and the mainland.

Answers

Answer:

The birds can now reach the Island.

Explanation:

The birds can now reach the Island because there is a sandbars and tiny Islands where they can rest for sometime as well as feed on the insects present at that sandbars and tiny Islands. Before these sandbars and tiny islands, the birds can't reach to the mainland due to large distance between Island and mainland so they have no capability to fly such large distance until the tiny Island and sandbars are appeared in the ocean.

Answer: an increase in gene flow between the bird populations

Explanation: :)

Discuss the impact of development planning for economic development for a development country like Pakistan under what circumstances a country should go for short term medium term and long term plan (it is a economics question)

Answers

Answer:

Great impact.

Explanation:

There is a great impact of development planning for economic development for a country because this development planning is important for the growth of economy of the country. Without planning, goals of better economy can not be accomplished. A country should go for short term plan in order to solve the economic problem at that time while on the other hand, medium and long term plan is used by the country in order to solve the economic problem completely.

Which statement about the cell membrane is true?

A) It contains cellulose and sugars that are involved in communication.

B) It is present in animal cells only.

C) It is rigid and elastic for supporting the cell's shape.

D) It prevents harmful substances from entering a cell.

Answers

Answer:

Its D, The cell membrane(also known a the plasma membrane) has a job in which it has to allow passage in and out of the cell. Therefore it can prevent harmful substances from entering the cell. Think of it as security, either allowing you access or denying you depending on if you're a threat

Answer:

D) it prevents harmful substances from entering a cell

Explanation:

The entire purpose of the cells membrane is to contain its organelles, the structures within it and prevent them from getting harmed by outside material.

The water vascular system of echinoderms The water vascular system of echinoderms functions in locomotion and feeding. functions as a circulatory system that distributes nutrients to body cells. moves water through the animal's body during filter feeding. is bilateral in organization, even though the adult animal is not bilaterally symmetrical.

Answers

Answer:

The water vascular system of echinoderms functions in locomotion and feeding.

Explanation:

The water vascular system of echinoderms is responsible for the functions in locomotion and feeding. The water vascular system is a hydraulic system that is used by echinoderms for example sea stars and sea urchins, for the purpose of locomotion (movement), food and waste transportation, and respiration. This system is composed of canals connecting numerous tube feet.

Apart from man, write down four other organisms that are affected by the destruction of crops due to the fall armyworm. Give a reason for you answers​

Answers

Answer:

Women, Herbivore animals, carnivore animals

Explanation:

Because they need food to survive.

Which of the following is NOT a type of biological weathering?
A. Carbon dioxide dissolving into clouds and forming acid rain.
B. Animals digging burrows.
C. Lichen absorbing minerals from stone.
D. Plants growing roots into concrete.
Hurry!!

Answers

the answer is A. Carbon dioxide dissolving into clouds and forming acid rain

At which Loint is air pressure lowest?
The image shows a representation of mountains of
various heights, numbered 1, 2, and 3. The plain is
labeled number 4.
O 1
2
3
04

Answers

3 I’m pretty sure it’s the third one

Answer:

0

Explanation:

the highest one because as altitude increases the atmospheric pressure decreases

You may have heard through various media of an animal alleged to be the hybrid of a rabbit and a cat. Given that the cat (Felis domesticus) has a diploid chromosome number of 38 and a rabbit (Oryctolagus cuniculus) has a diploid chromosome number of 44, what would be the expected chromosome number in the somatic tissues of this alleged hybrid

Answers

Answer:

The correct answer is - 2n = 41 chromosomes.

Explanation:

It is given that the cat has a diploid chromosome number of 38 while the rabbit has a diploid number of 44 chromosomes and if they form a hybrid then their expected chromosome number in somatic cells would be -

Cat (2n=38) produces haploid gametes with 19 chromosomes (n-19).

Rabbit (2n=44) produces haploid gametes with 22 chromosomes(n=22)

19+22= 41 chromosomes in the particular hybrid as half number of chromosomes come from each parent.

What is the main element that stars are made of?

Answers

Answer:

"Stars are made of very hot gas. This gas is mostly hydrogen and helium, which are the two lightest elements."

Which of the following biomolecules aids in cellular transport, metabolism, and
immunity?
O nucleic acids
O lipids
O carbohydrates
O proteins

Answers

Answer:

hey

Explanation:

the answer is PROTEINS

hope it's helpful for you

In the Punnett square fill in the shaded boxes with the alleles of each parent use B for the dominant allele (black fur) and b for the recessive allele (white fur)

Answers

Answer:

Explanation:

Under the male put BB

Next to the female bb

then first row should be Bb Bb

second row should Bb Bb

Here, all the alleles of the black parent are dominant and are represented as BB, and those of the white parent are represented as bb, and they both are purebred dominant and recessive alleles that have produced all dominant black (Bb) offspring.

What is Punnett Square?

A Punnett square is a diagram used to predict the possible outcomes of a genetic cross between two parents. In this case, the parents have different alleles for a gene that determines the color of their fur. The dominant allele B produces black fur, while the recessive allele b produces white fur. The Punnett square is arranged in a grid, with each box representing one possible genotype for the offspring. The top row and left-hand column of the grid represent the alleles that each parent can contribute to their offspring. In this case, both parents are purebred,as expressed below.

Hence, black parents are dominant and are represented as BB, and those of the white parent are represented as bb, and have produced all dominant black offspring.

Learn more about the Punnett square here.

https://brainly.com/question/27984422

#SPJ5

During the process of genetic recombination, crossing over occurs between two nonsister chromatids. DNA segments are exchanged between two nonsister chromatids during meiosis I. None of the above. maternal and paternal chromosomes pair and physically exchange DNA segments. All of the above.

Answers

Answer:

DNA segments are exchanged between two non-sister chromatids during meiosis I.

Explanation:

An exchange of chromosome segments or parts between non-sister homologous chromatids occurs which is also called crossing over. This crossing over occurs in the meiosis I that is responsible for the variation in the offspring produced. The formation of hybrid species occurs due to this exchanged of DNA segments between two non-sister chromatids.

the most common mineral group is broken into the subgroups of ferromagnesium and non ferromagnesium

Answers

Answer: The answer would be Silicate

Explanation: They are made out of silicon and oxygen

Which best defines matter?
A. All the living things on the planet
B. All solid objects that can be seen
C. Anything in the atmosphere
OD. Anything that takes up space and has mass
SUBM

Answers

Answer:

Anything that takes up space and mass

Explanation:

In science matter takes up space either by a solid, liquid, gas, plasma etc. And it all has mass no matter how small or how much it has.

Drag each label to the correct category.
Decide whether each statement describes mass or weight.
measured in newtons
measured in kilograms
does not change when
gravity changes
changes when gravity
changes
the amount of matter
in something
a gravitational force
Mass
Weight

Answers

Answer:

Weight: newtons, kilograms and changes when gravity changes

Mass: does not change when gravity changes, the amount of matter in something, and a gravitational force

Hope I get this right :)

Answer:

Weight is measured in Newtons, mass is measured in kilograms, mass does not change when gravity changes; weight does, mass is the amount of matter in an object, and weight is a gravitational force

Explanation:

Weight is measured in Newtons, mass is measured in kilograms, mass does not change when gravity changes; weight does, mass is the amount of matter in an object, and weight is a gravitational force

Does anybody know a nice place to watch the fireworks tomorrow around the San Francisco area??

Answers

yes,kumain kanaba ÚwÙ

Answer:

In the open

Explanation:

Or next to an attraction nearby

The plant coleus has three distinct leaf color phenotypes: green, white, and variegated (white and green mixed) the crosses are made as follows: female variegated leaves × male green leaves gives offspring with all variegated leaves female green leaves × male with white leaves gives offspring with all green leaves female with white leaves × male with variegated leaves gives offspring with all white leaves This is an example of ________.

Answers

Answer:

Cytoplasmic inheritance

Explanation:

female variegated leaves × male green leaves ⇒ all variegated leaves female green leaves × male with white leaves ⇒ all green leaves female with white leaves × male with variegated leaves ⇒ all white leaves

From these crosses, we can notice that only the female´s phenotype is expressed in the progeny, independently of the male´s phenotype. Whenever this occurs, it is probably due to the action of cytoplasmic inheritance.

Extrachromosomal or cytoplasmic inheritance refers to hereditability transmission controlled by cytoplasmic genes.

This form of inheritance lays in genes that are out of the nucleus. Even though most of the DNI is located in the nucleus, information for some characters is placed in organelles in the cytoplasm, such as mitochondria and chloroplasts. These organelles have a well-defined portion of the total cellular genome.

When a female expresses a trait that is defined by genes in the organelles, the whole progeny expresses the same trait as the female.

Mitochondrial inheritance is mostly maternal, but recent studies have demonstrated that it might also be paternal.  

 

The described experiment is an example of Cytoplasmic inheritance.

What do you mean by Phenotypes?

Phenotypes may be defined as the appearance or manifestation of a character. Phenotypes are also known as traits.

Cytoplasmic inheritance reveals the phenotypes of offspring according to female parents. In this mode of inheritance, characters or traits are stored in the organelles like chloroplast, and mitochondria, as well as in the cytoplasm.

Therefore, the described experiment is an example of Cytoplasmic inheritance.

To learn more about Cytoplasmic inheritance, refer to the link:

https://brainly.com/question/9773481

What is the probability of the offspring having hemophilia for the cross that is shown in the Punnett square?

Answers

Answer:

Probability of having haemophilia for the cross having genes Hh and Hh is 25 percent. Probability of having haemophilia for the cross having genes hh and hh is 100 percent.

Explanation:

Answer:

C. 50%

Explanation:

correct on edg.

The use of another orga....​

Answers

Answer:

C biological control.

Explanation:

Biological control because a natural organism is controling pest. Unlike using pesticides. That would be chemical control. lol

Answer:

C. Biological Control

Explanation:

The use of biological beings such as organisms to control pest andm uch more is considered to be Biological Control

A Scientist discovers a chemical that she thinks might be a potential treatment for a certain type of cancer cell. In order to test her hypothesis, the scientist treats one plate of cancerous cells with the newly discovered chemical, and leaves another plate of cancerous cells untreated. After 7 days, the scientist measures the number of living cells in each plate. The scientist finds that the cells treated with the chemical have a lower survival rate than cells left untreated. The scientist further observes that the substance has an effect on the Rough endoplasmic reticulum (RER). How might disabling the rough ER potentially hurt the cancerous cells? Be specific in your answer. What is the dependent variable? What is the independent variable?

Answers

Answer:

Affecting the ER causes alteration in cell homeostasis and eventual death.Independent variable: Drug or chemicalDependent variable: Cancer cells survival.

Explanation:

Hypothesis ⇒ A chemical ⇒ might be a potential treatment for cancer cells.

Experiment:

Treated ⇒ One plate of cancerous cells with the new chemicalUntreated ⇒ Another plate of cancerous cells with no chemical

7 days later ⇒ the number of cells in each plate

Results:

Cells treated with the chemical have a lower survival rate than cells left untreated.

Treated plate ⇒ fewer cellsUntreated plate ⇒ more cells

Chemical affects the Rough endoplasmic reticulum (RER)

----------------------------------------------------------------------------------------------------------

The endoplasmic reticulum is in charge of many cellular functions, such as protein folding, maturation, and transport, especially those destined for secretion. It produces the latest protein modifications after transduction.

When the synthesizing protein gets in the Rough endoplasmic reticulum,  it continues its building in the organelle. Finally, the protein suffers folding and the initial stages of glycosylation.  

Once the protein synthesis in the endoplasmic reticulum is over, these molecules are packaged into vesicles and sent to the Golgi complex for their final association with carbohydrates. Finally, protein leaves the Golgi complex and goes to its final destiny.

Any alteration in the intracellular environment

inevitably affects the organelle and its functions. When the organelle is not properly working, proteins synthesis is affected and, consequently, all the cellular activities. The affected cell homeostasis might be so altered that the cell ends dying.

If the drug affects the ER by altering its environment or directly affecting it, the organelle will fail to perform its functions, and the cell will eventually dye.

------------------------------------------------------------------------------------------------------------

The independent and the dependent variables are the two principal factors needed in an experiment.  

 Independent variable: Refers to all the variables in an experiment that provoke a response in another variable. The independent variable changes or is controlled and modified in the experiment to analyze how another variable responds to it. It changes to analyze its effects on the dependent variable. Usually, the independent variable is represented by the X letter.

In the exposed example, the independent variable is the drug that affects the cancer cells. The researcher decides to apply it or not, and the concentrations in which the drug is.  

Dependent variable: Refers to the variable that reacts to the changes produced in the independent variable. Depending on how the independent variable is modified, the dependent variable change.  It is usually identified by the letter Y.

In the exposed example cell survival is the dependent variable. Cancer cells respond to the presence/absence of the chemical, and might differently respond to the varying concentration of the drug.

How do spores survive even after the plant has died?
Spores are protected in a protective covering preventing it from drying out.
O Spores have special chemicals that prevent it from dying.
Spores are buried under rocks.
O Spores can naturally live forever.

Answers

Answer:

spores have special chemicals that prevent ot from

When comparing the yield of ATP from the different stages of cellular respiration, which produces the greatest number of ATP

Answers

Answer:

The correct answer is - electron transport system.

Explanation:

There are 3 main stages of cellular respiration (aerobic) that are Glycolysis, the Kreb's Cycle and the ETS or Electron Transport Chain. The formation of energy in ATPare as follows:

Glycolysis - glucose > 2 Pyretic Acid Molecules =>2 ATP and Hydrogen

The Krebs Cycle - Citric Acid (a derivative of Pyruvic Acid) > 2 ATP in 4 cycles and  Hydrogen, carbon dioxide and water.

The Electron Transport Chain > electron carrying Hydrogens > releases the energy as 4 ATP and water

Thus, the correct answer is - The Electron Transport Chain is the stage that produces most of the ATP during cellular respiration.

Which of the following statements is false?
А) Glucose molecules are the basic units of cellulose
B) Glycerol is a basic unit of oils.
C) Simple sugars like glucose are the basic unit of fats.
D) Amino acids are basic units of proteins.

Answers

The answer is b I’m not sure I think
The answer is B (Glycerol is a basic unit of oils)

If you had a type of cancer that involved the immune cells in your central nervous system that ingest intruders (similar to how macrophages function in the peripheral body), what cell would be affected?

Answers

Answer:

Phagocytes.

Explanation:

Phagocytes are the cells which would be affected by the cancer that involved the immune cells in our central nervous system that ingest intruders. If the cells that ingested intruders also turn into cancer cells then there is decrease occur in the number of Phagocytes and the body's immune system get weaken and unable to defend the body against pathogens. Phagocytes are a type of white blood cells that use phagocytosis method to engulf bacteria, foreign particles, and dying cells to protect the body.

"All honey flora are plants, but all plants are not honey flora". Justify. ​

Answers

Answer:

Beekeeping is affected by adverse climatic conditions and availability of floral resources. This study aimed to survey and characterize the flora in São João do Piauí, a semi-arid region in Piauí, Brazil, and to identify species providing resources to bees. Flowering plants were observed for 18 months, and records were taken of flowering date, growth habit, visitation and resources collected by bees. Melissopalinological analysis of honey produced in the area was performed. A total of 67 flowering plant species were recorded, of which 49 were considered as bee plants, with a predominance of herbs and shrubs. The low rainfall reduces the number of flowering species, which makes important the conservation and multiplication of species which bloom in dry season, such as Ipomoea glabra, Myracrodruon urundeuva, Sida cordifolia and Ziziphus joazeiro, as well as species that contribute to honey production such as Mimosa tenuiflora, Mesosphaerum suaveolens and Croton sonderianus.

Keywords:

nectar; pollen; floral resources

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