what’s porosity

a) The ease with which water is able to flow from one pore to another in rock
b) A measure of the amount of ground water available in the water table
c) A measure of the amount of open space within unconsolidated sediment or rock
d) The ability of water to trickle down through soil until it reaches ground water

Answers

Answer 1

Answer:

C)

Explanation:

A measure of the amount of open space within unconsolidated sediment or rock.


Related Questions

how do the ranges for the marine bird and sea turtle species species compared

Answers

Answer: Varies

Explanation:

It's based on there being many different types.

This model chose to include certain features and exclude other features. For example, this simulation only includes rabbits, wolves, and grass but there are other predators of rabbits and other food sources for rabbits. Why do you think the creators focused on these data elements and not others

Answers

The creator focused on these data elements and not others because he was trying to create a food chain instead of a food web.

In the ecosystem, the living and non-living things interact over time leading to exchange of energy.

A food chain can be defined as the steps through which energy transfer occurs in an ecosystem.

The energy flows from the producers (grass), primary consumers, (rabbits) and then the secondary consumers (wolves).

The energy flow is indicated with an arrow thus,

grass ---> rabbit -----> wolves.

Food chain, therefore includes linear sequence of organisms.

Food web on the other hand illustrates a complex feeding relationship within the ecosystem.

The food web is made up of a prey that can be eaten by more than one predator.

Therefore, even though there where other predators of rabbits and other food sources for rabbits, he chose only few features to create a food chain.

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Which of the following systems does NOT excrete some form of waste ?

A: Urinary

B: Integumentary

Or C: Skeletal

Answers

Answer:

Option C is write answer

su**

Due to a recent drought, a farmer has lost quite a bit of soil on his fields because:
A) the rain has washed it away.
B) the animals have been trying to eat the soil due to lack of food.
C) the plants have absorbed the soil.
D) wind has carried away the dry soil.

Pls help

Answers

Answer:wind has carried away the dry soil

Explanation:

How is a proton gradient formed across the inner mitochondrial membrane?

Answers

Answer:

Energy is released in these “downhill” electron transfers, and several of the protein complexes use the released energy to pump protons from the mitochondrial matrix to the intermembrane space, forming a proton gradient.

Explanation:

Identify this functional group

Answers

Answer:

Hydroxyl

Explanation:

Hydroxyl groups are simple structures consisting of an oxygen atom with two lone pairs bonded to a hydrogen atom.

A hydroxy or hydroxyl group is a functional group with the chemical formula -OH and composed of one oxygen atom covalently bonded to one hydrogen atom.

Using these given definitions, a hydrogen bond is labeled with one linkage, while a covalent bond is with two links to the Carbon Atom.

See attached image for a similar diagram for proof.

20. Explain why it is important to cite the references you use in a scientific report.

Answers

Answer:

If you don’t cite where you got your information from, there could be horrible consequences. If you don’t cite your references and use that work as your own, your subject to plagiarism.

Explanation:

Answer:

If you don’t cite where you got your information from, there could be horrible consequences. If you don’t cite your references and use that work as your own, you are subject to plagiarism.

Explanation:

pls I need answers ASAP,thank you

Answers

Which answers? can you show a picture or explain in some sort

positive and negative punishment are meant to?

Answers

Answer:

yessssssssssssssssssssss

Which of the following statements apply to leukocytes? Select all that apply.
Multiple select question.

They eject major organelles when mature.

They are capable of protein synthesis.

They live approximately 120 days.

They retain their organelles throughout their life time.

They are not uniform in form and function.

Answers

Explanation:

leukocytes are white blood cells. mainly 4 killing bacterial infections.

Leukocytes are the specialized cells which are a part of blood. These are known as white blood cells. These protects the body. These produce antibodies. Thus, the correct options are B, D, and E.

What are Leukocytes?

Leukocytes are the white blood cells. These are a type of specialized cell type which is present in blood along with erythrocyte and plasma. Leukocytes are primarily responsible for protecting the body from pathogens and germs by producing antibody proteins which fight against these organisms.

Leukocytes are irregular in shape. They can change their shape to engulf or kill the bacteria which enters the blood to prevent disease. Erythrocytes change their shape which allows them to pass through the capillaries which are very tiny.

Therefore, the correct option is B, D, and E.

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#SPJ2

Which of the following statements best goes with the Law of Conservation of Energy

Answers

Explanation:

Just choose the one that is similar to that of this : Energy is neither created nor destroyed in a given system.

note -it is always unidirectional i.e - Goes in only one path.

Assume for the purposes of this problem that the order of and distances between three linked genes are the following: unc-32 10mu vab-7 20mu dpy-17 What is the probability of obtaining a phenotypic unc-32 vab-7 offspring from a cross between a heterozygous fly(unc-32 vab-7 dpy-17/ ) and the triple recessive nematode

Answers

From the distances between genes and their order, it is possible to get recombination frequencies per region (simple and double recombination frequencies). The probability of obtaining a unc-32 vab-7 + offspring is 0.09 = 9%.  

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

We are usually asked to get the order of genes in a chromosome. To do so, we need to get the distances between genes. And to get distances between genes, we need to get their recombination frequency.

When three genes are involved, we get the distances by taking the recombination frequency, P, per region.

We talk about regions, R, when we are making reference to the space between two genes.

                Gene 1 -----(R1)----- Gene 2 --------(R2)------ Gene 3

                                    P1                               P2

P1 = recombination frequency between Gene 1 and Gene 2P2 = recombination frequency between Gene 2 and Gene 3

⇒  P1 = (SR + DR) / N

⇒  P2 = (SR + DR)/ N

Where:

SR is the number of simple recombinants in each region, DR is the number of double recombinants in each region, and N is the total number of individuals.

The genetic distance will result from multiplying that frequency by 100 and expressing it in map units (MU). One centiMorgan (cM) equals one map unit (MU).  

In the exposed problem, we need to do the inverse way. We already have the order and distances between genes, and we need to get the recombination frequency, P.

We know that the order of genes is as follows,

unc-32 ------------- vab-7----------------- dpy-17

     

Distances are:

Region 1 = 10 MURegion 2 = 20 MU

We need to get the probability of obtaining a phenotypic unc-32 vab-7 + offspring from a cross between a heter0zyg0us fly (unc-32 vab-7 dpy-17/ + + +  ) and the triple recessive nematode (unc-32 vab-7 dpy-17 / unc-32 vab-7 dpy-17).

Cross:  

unc-32 vab-7 dpy-17 / + + +     x     unc-32 vab-7 dpy-17 / unc-32 vab-7 dpy-17

To get the genotype unc-32 vab-7  + , a simple recombination, SR, must occur in region 2.

So we need to get the simple recombination frequency in Region 2.

To do so, first we need to clear the following equation

Distance between vab-7 dpy-17 = P2 x 100 = 20 MU

20MU = P2 x 100

P2 = 20  / 100

P2 = 0.2

The recombination frequency in region 2 (P2) is 0.2.

Now, we need to get the simple recombination frequency in this region.

P2 = (SR + DR) / N

P2 = Simple recombinants Frequency + Double recombinants Frequency

R1 = 10 MUR2 = 20 MUDouble recombinants Frequency = 10% x 20% = 0.1 x 0.2 = 0.02

P2 = Simple recombinants Frequency + Double recombinants Frequency

0.2 = Simple recombinants Frequency + 0.02

Clearing the equation,

Simple recombinants Frequency = 0.2 - 0.02 = 0.18

Simple recombinant frequency in region 2 will produce the following two chromosomes,

unc-32 vab-7  ++   +   dpy-17

So half of this frequency will produce one chromosome, and the other half will produce the other chromosome.

unc-32 vab-7  +     ⇒   0.09+   +   dpy-17          ⇒   0.09

So, the probability of obtaining a phenotypic unc-32 vab-7 + offspring is 0.09 = 9%.

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

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What is the empirical formula of a compound that contains 4.03 g of hydrogen per mole, 64.14 g of sulfur per mole, and 128.00 g of oxygen per mole?

Answers

Answer:

Oct 27, 2015 · CH_4 For this kind of problem, you can assume that the weight of the unknown sample is 100g ( since 75% C + 25% H = 100%). Thus, weight of C = 75g weight of H = 25g Since chemical formulas deal with number of moles rather than weight in grams, you need to convert each element by multiplying it to their respective atomic masses.

Explanation:

The empirical formular i H₂SO₄

The first step is to calculate the compound by the molar mass

Hydrogen,   Sulphur,   Oxygen

4.03/1   ,   64.14/32   ,   128/16

4.03  , 2  ,   8

Divide by the lowest value

4.03/2  ,  2/2 ,  8/2

2, 1 , 4

H₂SO₄

Hence the empirical formula is H₂SO₄

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Indicater I need the meaning

Answers

Answer:

indicator can mean two different things,

1. a thing, especially a trend or fact, that indicates the state or level of something.

2. a gauge or meter of a specified kind.

Hope this heled!

What is the most likely explanation for
the DNA found in mitochondria?

Answers

Answer:

Origin. Nuclear and mitochondrial DNA are thought to be of separate evolutionary origin, with the mtDNA being derived from the circular genomes of bacteria engulfed by the early ancestors of today's eukaryotic cells.

Explanation:

Reactions occur within the sun to transform _____ energy into _______ energy.

Answers

Answer:

Chemical and light and thermal energy.

Explanation:

Reactions occur within the sun to transform chemical energy into light and thermal energy.

In the Sun, chemical energy transforms into light and thermal energy. Plants transform the Sun's light energy into chemical energy during the process of photosynthesis.

Hope this helps :)

Answer:

chemical and thermal energy

What is the nervous system composed of?
A. The central nervous system
B. The peripheral nervous system
C. The respiratory system
D. Answers A & B


Answers

Answer: D) the central and peripheral nervous systems

hope this helps

Which of the following describe how seabird populations are affected by climate change?

Answers

Answer: Varies

Explanation:

It depends on the time of season at the given moment.

What do weather forecasters use to forecast the weather?

A. superstitions
B. beliefs
C. weather patterns
D. dreams

Answers

C. Weather patterns

In very extreme weather, the xylem cells are damaged as well. Describe how the plant is affected if the xylem is unable to function correctly.

Answers

Answer:

The plant will die

Explanation:

Xylem's job is to transport water and minerals from the soil to the parts of the plant. Without it the plant won't receive the required minerals and the plant will die.

Tornado Effects on the Land

Answers

Answer:

They have a small effect

Explanation:

Because when you consider the size of the earth, tornadoes have a small effect on earth, that's your answer?

Answer:

Tornado Effects on the Land-well tornadoes strike are greatly impacted. Trees and plants can be uprooted, and diseases in the soil are spread.

Explanation:

DEADLY!!

what is the chemical formula for the sugar carbohydrate produced by photosynthesis?
A. H2O
B. CO2
C. C6H12O6
D. O2

Answers

Answer: C

Explanation:

what is the main reason scientist do experiments?
A) to find out if a hypothesis is correct
B) to provide jobs for scientists
C) to find different ways to use lab equipment
D) to educate science students

Answers

A. to find out if a hypothesis is correct.

Check all statements below that are true
All organisms must compete for survival.
When
organisms struggle to survive, they usually mutate
to
Some
organisms have phenotypes that make them better
increase chances of reproduction.
environment
competitors than others in their
Animals undergo natural selection, but plants and other organisms
Natural selection continues to occur even today
generally do not.
I
Phenotypes found In the most successful members of a species become the most prevalent after
several generations.
M
A decrease in food availability will increase the variation in a population.

Answers

Answer:

Statements thar are true:

Some  organisms have phenotypes that make them better  increase chances of reproduction.

Natural selection continues to occur even today

Phenotypes found In the most successful members of a species become the most prevalent after  several generations.

Explanation:

It is not true that all organisms must compete for survival, sometimes the conditions are good and there is enough food or good climate conditions and that makes no need of competition an increase in the individuals of the species.

Animals undergo natural selection, this is a random natural phenomenon that can make plants and animals adapt better or worse to the enviromental conditions. This cause that the beneficiaries can adapt, survive and reproduce and became the most prevalent after generations.

Mutations are not phenomen that occur because the living being needs it, but rather they are phenomenon that occur at random at any time and determine the possibility of survival.

A decrease in food availability will do the contrary, decrease the variation in a population because it makes that only those who manage to adapt to eat another food survive, for example.

Answer:

A C E F

thats that ones

HEHEHHEHEHEHEHHEHEHHEHHEHE HELP ASAP

Answers

the answer is A. voting.

What best describes main component of carbohydrates

Answers

Answer:

All carbohydrates, including sugar, therefore contain the same three elements: carbon, hydrogen, and oxygen. Different arrangements of these elements form single units to make different types of carbohydrates.

If a 1000 bp of DNA were inserted between the two restriction sites, how would the banding pattern on the gel differ from the one you drew in part a

Answers

Hello, is there anyone here a pharmacy technician?

How toxins are accumulated as you go up in trophies levels in an ecosystem

Answers

Answer:

hi sorry, i want stitches

Compare and contrast an active solar heating system with a radiator system.

Answers

Answer:

A system that uses the sun's energy without requiring mechanical devices (pumps or fans) to distribute the collected heat are called solar system while radiator system uses fuel to heat the water. in active solar heating system, the SUN's energy used to heat water.

The comparison of an active solar heating system with a radiator system gives;  Solar systems use the sun's energy to heat water without the need for mechanical equipment to disperse the heat, where radiator systems require fuel to heat the water.

What is an active solar heating system?

Active solar heating systems employ solar energy to heat a fluid (liquid or air), which is then transferred to the interior area or stored for later use.

In conclusion, an active solar heating system and a radiator system are all subs of heat energy

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Which of the following is not true of chloroplasts?


a. They synthesize sugar
b. They contain pigments
They are only found in plants d. They appear green because of the ch

Answers

Answer:

a.

Explanation:

they don't synthesis sugar..ig...lol

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