which of the following is a density- independent factor?
1 mate availability
2 parasitic infestation
3 disease transmission
4 lack of rainfall

Answers

Answer 1

Answer:

4. Lack of Rainfall

Explanation:


Related Questions


What is the function of the
vacuole in plant cells
A. Controls cells activity
B. Stores water and nutrients
C. Produces energy for the cell
D. Removes waste from the cell

Answers

Answer:

B. Stores water and nutrients

Explanation:

physiology Of Digestion Of Earthworm In Simple Word Of Mouth​

Answers

Answer:

They do not have teeth. A liplike extension over the mouth helps direct food into the mouth, where the muscular pharynx (throat) grabs it, coats it with saliva and pushes it down the esophagus into the crop, where it is stored before moving on to the gizzard.

Explanation:

Zach Corp. pays commissions to its sales staff at the rate of 3% of net sales. Sales staff are not paid salaries but are given monthly advances of $15,000. Advances are charged to commission expense, and reconciliations against commissions are prepared quarterly. Net sales for the year ended March 31 were $15,000,000. The unadjusted balance in the commissions expense account on March 31 was $400,000. March advances were paid on April 3. In its income statement for the year ended March 31, what amount should Zach report as commission expense?

Answers

Based on the information given the amount that Zach should  report as commission expense is $450,000.

Using this formula

Commission expense=Percentage of net sales× Net sales

Where:

Percentage of net sales=3%

Net sales=$15,000,000

Let plug in the formula

Commission expense=3%×$15,000,000

Commission expense=$450,000

Inconclusion the amount that Zach should  report as commission expense is $450,000.

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True / False

HIV is unique because it copies the information for reproduction from RNA back into DNA.

Answers

Explanation:

True. it is a virus and that's how viruses reproduce.

HIV is a virus which is unique because it copies the information for reproduction from RNA back into DNA, the statement is true.

What is virus ?

A virus is a nonliving thing which is a  connecting link between living and nonliving organism, depend on living host cell for their survival.

virus contain a chain of nucleic acids (DNA or RNA) which  use different parts of the cellular machinery to reproduce, and releases the replicated nucleic acid chains

A virus has a protein coat or protein envelope allows the virus to survive between hosts act as a protective covering, do not have cells and lack a cell wall .

The protein coating is called as the capsid, genetic element present and is characterized by the evolution of the virus and the host.

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What type of species has an
impact on the ecosystem that is
greater than its numbers?
A. a keystone species
B. a non-native species
C. an invasive species

Answers

Answer:

I think it would be C

Explanation:

Invasive species can cause a lot of problems and have a big impact on the ecosystem.

Answer:

A

Explanation:

It is a keystone of species

True or False. There are only two broad categories called kingdoms.

Answers

Living things are divided into five kingdoms: animal, plant, fungi, protist and monera. Living things are divided into five kingdoms: animal, plant, fungi, protist and monera.

If a nucleus has eight chromosomes following replication, how many chromatids does it have?

Answers

Answer:

It has 16 chromatids

Explanation:

Since each chromosome has 2 chromatids

3. In 1981, a stray black cat with unusual curled-back ears was adopted by a family in California. Suppose you were the person who owned the first "curl" cat, and wanted to develop it into its own breed. How would you determine whether the allele for curled ears is dominant or recessive? Why does it make a difference for breeders whether an allele for a trait is dominant or recessive?

Answers

It is possible to determine whether the allele for curled ears is dominant or recessive by performing a test cross. It is fundamental for breeders because desired traits show differential patterns of inheritance.

In a diploid (2n) organism, a given gene locus exhibit two different variants or forms called 'alleles'.

An individual is homo-zygous when both alleles for a given gene locus are the same, while an individual is heterozygous when alleles are different.

In cases of complete dominance, the expression of the recessive allele is completely masked in heterozygous individuals.

A breeder is a professional who performs genetic crosses between different organisms in order to obtain offspring (eg., plants, animals, etc) with desired phenotypic features.

A test cross is a type of cross that breeders use to determine whether an allele is dominant or recessive (in this case, the allele for curled ears).

In a test cross, the organism that is a carrier of the unidentified allele is crossed with another organism that is believed to be homo-zygous for the recessive trait, and then the proportion of offspring is examined.

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What is the main difference between amphibians and arthropods?

Answers

Answer:

I do think that the main difference between amphibians and arthropods is that amphibians are vertebrates while arthropods are invertebrates

what process is shown?

Answers

Answer:

A

Explanation:

it's cell cycle.

A cell cycle is a series of events that takes place in a cell as it grows and divides.

What are the four types of physical hazards?
Select the 4 answer options that apply.

Extreme Temperature

Radiation

Vibration

Noise

Pathogens

Corrosive substances

Answers

Answer:

1st 4 are the physcal hazards

Explanation:

a)

b)

c)

d)

The four types of physical hazards are Extreme Temperature, Radiation, Vibration and Noise.  

What are Physical Hazards?

A physical hazard is an agent, factor or circumstance that can cause harm with contact. They can be classified as type of occupational hazard or environmental hazard.  

Physical hazards include ergonomic hazards, radiation, heat and cold stress, vibration hazards, and noise hazards.

Whereas, Corrosive substances comes into chemical hazards and Pathogens can be classified as biological hazards.  

Thus, the Extreme Temperature, Radiation, Vibration and Noise are the best four options as the type of physical hazards.

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What is the fundamental branch of Science from which Neuroscience stems, Biology, Mathematics, or Physics?

Answers

Answer:

Mathematics is the branch of science, which deals with numbers, involves calculations and mainly focuses on the study of quantity, shapes, measurements etc.

Explain what is probably going wrong in the following scenario.
Situation: Using a range of different fertilization techniques and products, a gardener has been working to improve fertility on a stretch of lawn that had very poor, sandy soil. The gardener has added a range of soil amendments, including additions of clay, compost, peat moss, and NPK fertilizers. For a period of time the gardener seemed to succeed, and he increased his treatments. Recently, though, discolored vegetation that seems almost drought-stricken has been appearing in the grass. The gardener is now wondering what has gone wrong.

Answers

Over using of fertilizers .......Not giving time to soil to maintain its natural fertility......No leguminous crops as well...... Chemical methods of increasing production.....

the process of diffusion occur when?

Answers

Answer:

Diffusion occurs in a type of cell transport called passive transport.

This type of cell transport doesn't use any energy. It goes from a high to low concentration gradient.

What principle of light’s behavior can be used to make a far away object appear closer and also make a small object appear larger? A. incidence B. reception C. transmission D. refraction

Answers

Answer:

I believe that the answer to this question would be D. refraction

Explanation:

because it changes direction of the light in don't know how to explain


Which statement is true about DNA?It contains the sugar ribose
It contains a base with nitrogen.
Its monomers contain twice as many phosphate functional groups as RNA's monomers
It is a single-stranded macromolecule.

Answers

It’s Monomers contain twice as many Phosphate functional groups as RNAS monomers

Which of the following statements about the light reactions of photosynthesis in chloroplasts is/are true?
A.
Chlorophyll (and other pigments) absorb light energy, which excites electrons.
B.
ATP is generated by photophosphorylation.
C.
The splitting of water molecules provides a source of electrons.
D.
None of these statements are true.
You may select zero, one, or many answers.
Submit response

Answers

Answer:

a, b, and c are true

Answer this question if you know the answer
Do you believe in the sanctity of life? Why/ why not?

Answers

Answer:

Yes

Explanation:

Part of religion

Yes. Because I am an emotional being with a life that I value. What happens to my perceptual and emotional being upon the end of my life is unknowable. I possess empathy and a subsumed theory of mind. I can project my own emotions and desires onto those of other beings. I therefore assume that all emotional beings value their own life as I do my own. Out of my empathy for others and my desire that others will empathize with me, I can value the lives of other emotional beings on their behalf. Because it is impossible to know with any certainty what of my emotional being will survive end of life, I place a very high. Perhaps the highest value on my life and by extension the lives of others. To me it seems that spiritual belief precepts which undermine the singular uniqueness of this life experience through afterlife or reincarnation mythologies those can only undermine and lessen the value i.e. the sanctity of life.

What did Alfred Wegener try to prove with fossil evidence?

Answers

Answer:

Earth's continents were once connected in a single supercontinent.

Explanation:

v

PLEASE HELP WITH THIS ONE QUESTION
What systems supply food and oxygen needed for respiration?

A) excretory, digestive, and respiratory

B) excretory, respiratory, and cardiovascular

C) digestive, respiratory, and cardiovascular

D) digestive, excretory, and cardiovascular

Answers

What systems supply food and oxygen needed for respiration quizlet? The circulatory system carries nutrients (food/glucose) and oxygen to the muscles where the mitochondria can use the oxygen to break down the food to produce cellular energy.

How do limiting factors influence each other?

Answers

Answer:

In the natural world, limiting factors like the availability of food, water, shelter and space can change animal and plant populations. Other limiting factors, like competition for resources, predation and disease can also impact populations. ... Other changes in limiting factors will cause a population to decrease.

Explanation:

hope it helps.

Answer: Two or more limiting factors may work in conjunction with one another.

Explanation:  For example, parasites and disease. In this case, we have a biotic factor (parasites) combined with an abiotic factor (a disease-causing virus). Combining these limiting factors creates a deadly team that can have an even greater impact on a population's growth and survival.

Virus that infect E.coli is called

Answers

Answer:

Escherichia virus T4 is a species of bacteriophages that infect Escherichia coli bacteria.

Think about the ecosystem that you live in.
Write a response below describing it in complete sentences.
Use each of these terms correctly in your description:
community
population
ecosystem
individual
biotic
abiotic

Answers

The ecosystem is a habitat in which different types of biotic and abiotic organisms coexist.

How is the ecosystem made up?

The ecosystem in which we live is coexisting with different types of population. Biotic and abiotic organisms coexist, interdependent organisms that share the same habitat. Through different processes such as predation, symbiosis, parasitism, they will disintegrate and reform to give themselves the energy and nutrient cycle.

The relationship that occurs between the community and its environment will be a flow of matter and energy in the ecosystem. There will also be different types of ecosystems such as marine, terrestrial, microbial and artificial. In all of these there will be food chains between the different species.

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Which types of cells replicate using meiosis?

Answers

Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction.

what organisms undergo cellular respiration

Answers

Answer:

Cellular respiration takes place in  the cells of fungi, animals, and plants.

Explanation:

Notice how these things are all living things. Cellular respiration is the process of turning glucose into ATP. This ATP is used for cellular functions and also to break down more glucose for more ATP. It is kind of like a circular process.

Hope this helps! Have a great day!

All options below explain why invertebrates reproduce more fertilize eggs than needed EXCEPT that
To make sure that other animals have a food source.
Many of the eggs will not survive and hatch due to predators.
This ensures that many of the eggs will have a chance to reach its adult stage
The more eggs produced the higher the chance more will survive

Answers

The more eggs produced the higher chance they will have to survive

the intercrop can be planted in 6 ways

Answers

Answer:

Spatial Arrangement in Intercropping

In multiple cropping by intercropping, the intercrop can be planted in any of the following ways: (1) within the rows of the maincrop, (2) between the rows of the maincrop, and (3) in replacement series (Abellanosa AL, HM Pava.

Asexual reproduction takes place through fragmentation in: a) Potatoes
b) ferns
c) yeas
t d) spirogyra​

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The Correct choice is ~

[tex] \sf d. \: spirogyra[/tex]

Name one observation in a urine culture that would result in a rejection of the specimen and
culture.

Answers

Answer:

What are 3 things that can be tested in a urinalysis to look for abnormalities?

Things the dipstick test can check for include:

Acidity, or pH. If the acid is abnormal, you could have kidney stones, a urinary tract infection (UTI), or another condition.

Protein. This can be a sign your kidneys aren't working right. ...

Glucose. ...

White blood cells. ...

Nitrites. ...

Bilirubin. ...

Blood in your urine.

Explanation:

Why are some atmospheric components like Corbin dioxide methane called greenhouse gasses

Answers

Carbon dioxide molecules in the atmosphere absorb long-wavelength infrared energy (heat) from the Earth and then re-radiate it, some of it back downward. This effectively traps heat around the Earth which is called the “greenhouse effect”
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