Which of these is an abiotic factor of an aquarium ecosystem?
a
algae growing on the glass
b
gravel on the bottom of the aquarium
c
plants growing from the gravel
d
fish swimming in the water

Answers

Answer 1

Answer:

b

Explanation:

abiotic factors are nonliving things and gravel is nonliving so that has to be the answer

Answer 2

Answer:

B: gravel on the bottom of the aquarium

Explanation:

Abiotic Factor means a non-living thing so gravel would be the best option.


Related Questions

september would the earth be experiencing a solstice or an equinox


how do you know

Answers

In September the earth will be experiencing  an equinox

Equinoxes occur between March and September. When the Sun's rays strike the equator at midday and at a 90° angle, it is considered an equinox.  It stands for the idea that day and night have equivalent lengths. The sunset and dawn are separated by 12 hours everywhere on Earth. One may observe how quickly the sunset and dawn hours shift throughout the day the farther one goes from the equator.

Whereas, solstices occur in June and December. The contrary is visible close to the solstices. For a few days, both the sunset and sunrise appear to be constant. Over the course of the year, the time of day when the sun is directly overhead where one lives also gradually changes.

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One of the challenges facing the world today is supplying enough food for the human population. Farming with genetically modified plants is a possible solution to this challenge. What is a concern with using GM plants?
A. Farming with GM plants that are resistant to chemical herbicides may lead to overuse of weed-killing compounds.
B. Farming with GM plants requires less land and energy, which may lead to lower food costs and an economic crisis for farmers.
C. GM plants require more insecticide use, which may increase the chance of chemical residues in the food supply.
D. Scientific studies on GM plants are not available so the effects of GM plants are unknown.

Answers

Answer:

Option A

Farming with GM plants that are resistant to chemical herbicides may lead to overuse of weed-killing compounds.

What are the three main categories of forests?​

Answers

The three categories of forests are separated into temperate, tropical, and boreal.

Answer:

There are three type of forest they include boreal, temperate and tropical forest

Explanation:

Temperate forest is mostly found across the Eurasia and East North America which vary throughout the year mainly because of the of the four main season which are on the latitude. Tropical forest is mainly found near the equator like Central America, Southern Asia and also sub Saharan Africa. Boreal forest is also known as Taiga is known to be the largest biomes land found in North America, Siberia, and Scandinavia.

According to Sandra Scarr's description of the three ways that heredity and environment can be correlated, passive genotype-environment correlations occur because Multiple Choice children seek out environments that are stimulating. biological parents provide a rearing environment for a child. a child's genetically influ­enced characteristics elicit certain types of environments. certain genes evoke environmental support.

Answers

Answer:biological parents provide a rearing environment for a child

Explanation:

According to Sandra Scarr's description on the correlation that exist between heredity and the environment, passive genotype-environment correlations occur due to the fact that certain genes evoke environmental support.

It should be noted that passive genotype-environment correlation takes place due to the fact that there's passive inheritance on the genes of the children and the environment which are provided by their parents.

An example of such characteristics is when the child is athletically inclined as it's possible for the family to be athletes.

In conclusion, the correct option is D.

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Puma concolor coryi Florida panther Class?

Answers

Answer:

excuse me what?

Explanation:

hiii has anyone done the Earth's Interior, Project: Earth’s Layers on edg 2020 if have pls sand to mee. if not pls do not answer. i will mark brilliant

Answers

Answer:

Crust, mantle, and the core are the interior parts of earth.

Explanation:

Earth's interior is divided into three layers i. e. crust, mantle, and the core. The temperature of crust is lower than the rest of the layers and when we go inside earth from crust to mantle and the core, the temperature is increases. The temperature of crust is 200° Celsius to 400° Celsius, the temperature of mantle is 1000° Celsius to 3700° Celsius and the temperature of core is 4,400° Celsius to 6,000° Celsius.

Answer:

Earth's interior is divided into three layers i. e. crust, mantle, and the core. The temperature of the crust is lower than the rest of the layers and when we go inside earth from crust to mantle and the core, the temperature increases. The temperature of the crust is 200° Celsius to 400° Celsius, the temperature of the mantle is 1000° Celsius to 3700° Celsius and the temperature of the core is 4,400° Celsius to 6,000° Celsius.

Explanation:

edge 2021

In the scientific name Limulus polyphemus, what is the genus? _________ species? _______.

Answers

Answer:

Limilus and L. pilyphemus

Explanation:

Atlantic horseshoe crab.

what is the origin of golgi apparatus​

Answers

Answer:

In most eukaryotes, the Golgi apparatus is made up of a series of compartments and is a collection of fused, flattened membrane-enclosed disks known as cisternae (singular: cisterna, also called "dictyosomes"), originating from vesicular clusters that bud off the endoplasmic reticulum.

Explanation:

How many kingdoms are there in the classification system?

3
4
5
6

Answers

There are 6 kingdoms in the classification system

Answer:

5/6

Explanation:

The five are Monera, Protista, Fungi, Plantae, and Animalia

There are six if you include archaebacteria and eubacteria

It depends which one you learned honestly

Radius of circle = 3cm , what is it's diameter, circumference and area? How do I look rat-e me from a 1 to 10!​

Answers

Answer:

buney şimdi what bunu annlaamm

Answer:

7

Explanation:

What was formed when biological material became trapped in a molecular bubble?

Answers

When biological material becomes trapped in a molecular bubble  it can form various structures known as microspheres or protocells.

What are microspheres ?

Microspheres are tiny spherical structures composed of organic molecules, such as proteins, lipids and nucleic acids. these molecules self-assemble to form a closed, membrane like boundary that encloses the biological material inside.

Microspheres can exhibit some properties of living cells, such as the ability to absorb and retain certain substances  but they lack the complex internal organization and metabolic processes found in actual cells

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What is a serving size? How is it determined? Are they the same for every food?

Answers

A serving size is the amount of food that you should eat. It’s determined by how nutritional a food is. If it is healthy and has less calories, it’s serving size would be larger than if it was unhealthy will more calories. Serving sizes are not the same for every food because each food has its own nutritional values and calories.

The first generation of hybrid offspring is called the ______ and can often be used to determine the ____ gene.
a. F2 generation; h.o.m.o.z.y.g.o.u.s.
b. F1 generation; h.o.m.o.z.y.g.o.u.s.
c. P generation; dominant
d. F1 generation; dominant

(Brainly needs to realize if they let us talk about college biology, that we are going to use words that have h.o.m.o. and that they are genuinely correct scientific terms.

Answers

P is parent gene, and then the offspring goes to the F1 and then F2, the dominant gene is what gene wins over a recessive. So the answer is c

The preferred generation of hybrid offspring is called the P generation and can often be used to determine the dominant gene.

What is P generation and dominant?

Dominant directs to the relationship between two versions of a gene. Then, Individuals receive two versions of each gene, which are called alleles, from each parent. When the alleles of a gene are different, So, one allele will be expressed This is a dominant gene.

When The P generation is the start of Mendel's work on inheritance, or receiving genetic qualities by transmission from parent to offspring. So, Basically that it refers to traits or genes that are passed from a parental generation to its offspring

When P is the parent gene, and also then the offspring goes to the F1 and also then F2, the dominant gene is what gene wins over a recessive. So the correct option is 'C'.

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A car is going down a ramp. When the car is half way down the ramp, it has
a. Only potential energy
b. Only kinetic energy
c. Potential and Kinetic energy
d. There is no energy

Answers

Answer:

C

Explanation:

btw this is physics

Answer:

C

Explanation:

It has Potiental Energy since it retains height over the base level. This can be seen in the formula PE = mgh in which is directly dependent on height. It also obviously retains Kinetic Energy due to the fact that it is in motion.

Summarize the findings of other scientists in Germany and Boston that support the work of Calderon-Garciduenas

Answers

Calderón-Garcidueñas has conducted research on the impact of air pollution on the brain and cognitive function. Other scientists in Germany and Boston have also conducted studies that support her work and findings.

In Germany, a group of researchers conducted a study to investigate the effects of air pollution on brain structure and cognitive function in a large population of older adults. The study utilized neuroimaging techniques to assess brain volumes and cognitive tests to evaluate cognitive performance. The findings revealed a significant association between long-term exposure to air pollution and reduced brain volume in regions related to memory and learning. The study also found that higher levels of air pollution were associated with poorer cognitive performance in various domains.

In Boston, researchers focused on the impact of air pollution on children's brain development. They conducted a study involving a cohort of children and assessed their cognitive abilities using standardized tests. The study found that children exposed to higher levels of air pollution exhibited lower cognitive scores, particularly in areas related to attention, memory, and language skills. The researchers also observed structural changes in the brain, specifically in regions involved in cognitive control, in relation to air pollution exposure.

These studies from Germany and Boston provide additional evidence supporting Calderón-Garcidueñas' findings regarding the detrimental effects of air pollution on the brain and cognitive function. They reinforce the notion that long-term exposure to air pollution can lead to structural changes in the brain and have a negative impact on cognitive abilities. The collective findings highlight the importance of addressing air pollution as a public health concern and implementing measures to reduce pollution levels to safeguard brain health and cognitive development, particularly in vulnerable populations such as children and older adults.

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From the list below select all statements associated with action potential depolarization phase.

Disregard the check marks.

Answers

The statements associated with action potential depolarization phase are: - Occurs as soon as threshold (-55 mV) is reached, Requires ionic concentration gradients,  Involves sodium movement across the neuron's membrane, Mediated by voltage-gated channels, Involves potassium movement across the neuron's membrane

- Action potential is an electrical impulse that travels along the membrane of a neuron or muscle cell.

- Depolarization phase is the first phase of action potential, in which the membrane potential rapidly becomes less negative and moves toward a positive value.

- Depolarization phase is initiated when the membrane potential reaches a threshold value of -55 mV.

- The depolarization phase requires ionic concentration gradients, which are differences in the concentrations of ions such as sodium and potassium on either side of the cell membrane.

- During the depolarization phase, sodium ions move rapidly into the cell through voltage-gated sodium channels that open in response to the depolarization of the membrane potential.

- The influx of sodium ions causes the membrane potential to become more positive, further opening voltage-gated sodium channels and creating a positive feedback loop that rapidly depolarizes the membrane.

- The depolarization phase is mediated by voltage-gated channels, which are proteins that open or close in response to changes in the membrane potential.

- As the depolarization phase progresses, voltage-gated potassium channels also begin to open, allowing potassium ions to move out of the cell and repolarize the membrane.

- The movement of ions during the depolarization and repolarization phases of action potential is an active process that requires energy and is mediated by ion pumps and channels.

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Hi
Please help on question asap if the answer is correct I'll rate you five stars a thanks and maybe even brainliest!

What do you notice about the values?

0.9 amps ÷0.03v=30 ohms.
1.9amps÷0.07v=27.149 ohms
3.1. amps ÷0.10v =31 ohms
3.9. amps ÷ 0.12v =032.5 ohms
5. amps ÷0.15v=33.33 ohms
6.1. amps ÷0.19v=32.1053 ohms

Answers

The numbers obtained for resistance (ohms) appear to be quite consistent when compared to the supplied values, with a few minor differences in decimal places. The computed resistances fall between around 27 and 33.33 ohms.

Ohm's Law (V = IR), where V is voltage, I is current, and R is resistance, states that current in amps and voltage in volts have a constant relationship. Although there may be some changes owing to rounding or accuracy, the numbers often lie within a comparable range.

It's crucial to keep in mind that these calculations make the idealistic assumption that current and voltage follow a linear relationship, which may not always hold true in practical applications, particularly when working with non-ohmic or non-linear components.

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? Question
Drag each tile to the correct location on the image.
Match the correct description with each visual aid.
should we spate our website?
me
IN
thay
god
Your Money
-
Nd
evaluation of whether
a company needs to
improve its
explanation
of
a complex
Thoreau Lewis
comparison of
two authors'
writing styles
description of the
Empire State
Building's
explanation of how
to best save and
manage money
description of the lives
of giant pandas in their
natural habitats

Answers

According to the information we can infer that the images match the sentences in the following way: Image A - Statement 5, Image B - Statement 6, Image C - Statement 4, Image D - Statement 1, etc...

How to make the best match between images and statements?

To make the best match between images and statements we must look at the images. Later we must take into account the elements that describe the statements. Once we identify this information we can establish the correct match. According to the above, the correct match is:

Image A - Statement 5Image B - Statement 6Image C - Statement 4Image D - Statement 1Image E - Statement 2Image F - Statement 3

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What do these do ?
Kidneys, bladder, liver

A. Transports nutrients and oxygen to the body, removes waste

B. Sends chemical messages for growth, reproduction, and
: Kidneys, bla energy processes

C. Filters the blood to removes toxins, excess water, and other
wastes

D. Works with skeletal system to procide movement, helps
digest food, pump heart, and move blood through veins
temperature, detects stimuli fro

E. Produces sex cells (sperm and ovum), nurtures and protects growing fertilizer egg

F. Provides support and structure to the body, stores minerals, produces blood cells, works with muscular system for movement

G. Community communications with and controls all other body systems, response to stimuli from inside and outside the body

Answers

Answer:

C

Explanation:

The kidneys are bean shaped organs about the size of an adult fist. Most people are born with two kidneys. They are located on each side of the backbone, against the back wall of the abdomen, at about the level of the lowest rib.

The liver detoxifies various metabolites, synthesizes proteins, and produces biochemicals necessary for digestion. Its other roles include the regulation of glycogen storage, decomposition of red blood cells, and the production of hormones. It is also the largest internal organ in the body.

How can you describe a cell

Answers

Answer:

A cell is a mass of cytoplasm that is bound externally by a cell membrane. Usually microscopic in size, cells are the smallest structural units of living matter and compose all living things. Most cells have one or more nuclei and other organelles that carry out a variety of tasks.

Explanation:

2. What may happen to an alcoholic if he or she suddenly stops drinking?
1.addiction to other drugs
2.health is restored
3.intoxication
4.withdrawal symptoms

Answers

4.
when you are addicted usually you might have withdrawals.

Answer:

4

Explanation:

Withdrawal is different for everyone; there really is no "normal" and it can be hard to predict an individual person's experience. Some symptoms—like changes in sleep patterns, fatigue, and mood swings—can last for weeks or months. You'll likely begin to feel better around five days to a week after you stop drinking

help help help help!

Answers

Answer:

1:C

2:C

3:D

4:D

this is 110% fact answer

The answers are C, C AND D D

Which is the most likely type of ethical or social issue that could arise from the use of DNA fingerprinting?
A. issues of animal rights that arise when an animal's genome is changed for a human purpose
B. privacy issues that arise when a donor's DNA is identified without his or her consent
C. environmental issues that arise when recombinant DNA is introduced, on purpose or by accident, into an ecosystem
D. economic issues that arise because of the high expense of DNA fingerprinting

Answers

Privacy concerns that develop when a donor's DNA is identified without his or her agreement is the sort of ethical or social issue that might most likely result from the usage of DNA fingerprinting. Therefore, option (B) is correct.

Analysing a person's distinctive DNA profile, which contains sensitive personal data, is known as DNA fingerprinting. The collection and identification of someone's DNA without that person's knowledge or agreement creates issues with respect to privacy, individual autonomy, and potential misuse of genetic data.

To address these moral and societal concerns, DNA fingerprinting practices must respect people's privacy and their informed permission.

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What do you call the process of a flower making a seed through pollination?

A. photosynthesis

B. fertilization

C. germination

D. Precipitation

Answers

hi!! i think the answer to your question is B. fertilization!!

i hope this helps, good luck!! <3

Which of the following is an example of selective breeding?
A. Breeding tomatoes to increase fruit size
B. Crossing 2 plants w desirable traits
C. Inserting genes from one plant into another
D. Returning bred plants to their natural habitat

Answers

Answer:

b

Explanation:

they chose the best tomatoes to make even better ones

Breeding tomatoes to increase fruit size is an example of selective breeding. Therefore option A is correct.

Selective breeding, also known as artificial selection, involves the intentional breeding of plants or animals to promote desired traits. The process typically involves selecting individuals with specific characteristics and breeding them to pass on those traits to the next generation.

In the given options, breeding tomatoes to increase fruit size is an example of selective breeding. By carefully selecting tomato plants with larger fruits and allowing them to reproduce, breeders can gradually enhance the fruit size of future generations.

This process relies on natural genetic variation within the tomato population and human intervention to guide the breeding process toward the desired outcome.

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VA (rod-shaped)
B (spiral-shaped)
C (spherical)

Answers

what is the question? I can't see.

Nutrients can be classified as essential or nonessential. All of the following are reasons why a nutrient could be considered an essential except

Answers

Answer:

vitamin A is essential because consuming too much supplemental vitamin A during pregnancy can cause birth defects.

Hope this helps!

How “Competition in an ecosystem” is playing a role in life?

Answers

competition plays a very important role in ecology and evolution. The best competitors are the ones who survive and get to pass on their genes.

How does difference in chromosome arrangement lead to greater genetic diversity in a population?

Answers

Answer:

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Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

what do you call the reproduction in plants where the male and female parts of the flowers of the plants are involved?
A.asexual
B.budding
C.pollination
D.sexual​

Answers

Answer:

your answer would be d. sexual

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the measure adjusted r2 measures what percentage of the variation in the dependent variable is explained by the explanatory variables. True or false? please determine which of the characteristics describe medicare, medicaid or both. Medicare Both Medicaid Answer Bank provides benefits to disabled Americans specifically aimed at helping low-income Americans designed to reimburse the elderly for medical expenses must have worked for at least ten years paying premiums run through state level agencies ONLY ANSWER IF YOU KNOW. What is the probability that either event will occur? the market supply of labor is: question 8 options: a) the sum of all jobs created in the economy each year. b) different for each individual based on their training and education levels. c) the total of all goods produced in the economy each year. d) the amount of labor all workers supply at different wage rates. The curve of the equation y^2 = x^2(x 3) find the area of the enclosed loop. in the first part of the nineteenth century the middle-class valued all of these traits.. Which part of this weak acid titration, would it be appropriate to predict/calculate the pH using an ICE table and K? Let p equal the proportion of letters mailed in the Netherlands that are delivered the next day Suppose that y= 142 out of a random sample of n = 200 letters were delivered the day after they were mailed. (a) Give a point estimate of p (b) Use Equation 73-2 to find an approximate 90% confidence interval for p (7.3-2) (c) Use Equation 73-4 to find an approximate 90% interval for p. 7.3-4) (d) Use Equation 73-5 to find an approximate 90% confidence interval for p. 7.35 what did the appearance of the the daily news in galveston represent for texas? in the film clip strangers on a train which was was music not used evidence to conclude that the height for 10-year-old girls from country b is significantly different from the country a population mean at a significance level of . a. Determine whether the population mean for height for 10-year-old girls from Country B is significantly different from the Country A population mean. Use a significance level of 0.05.Ans: H0: = 54.9 and Ha: 54.9; The sample is random and the observations are independent. The distribution of the heights is Normally distributed.; t=-0.30; p = 0.770; Since the p-value is greater than the significance level, do not reject H0. There is insufficient evidence to conclude that the height for 10-year-old girls from Country B is significantly different from the Country A population mean at a significance level of 0.05.b. Now suppose the sample consists of 45 girls instead of 15. Repeat the test.Ans: H0: = 54.9 and Ha: 54.9; t=-0.52; p=0.608; Since the p-value is greater than the significance level, do not reject H0. There is insufficient evidence to conclude that the height for 10-year-old girls from Country B is significantly different from the Country A population mean at a significance level of 0.05.c. Explain why the t-values and p-values for parts a and b are different. Choose the correct answer below.Ans: A larger n causes a smaller standard error (narrower sampling distribution) with less area in the tails, as shown by the smaller p-value. after world war ii, the united states entered a period of prosperity, consumer spending and high employment. True or false need help understanding this question determine whether the series converges or diverges. [infinity] n2 4n3 3 n = 1 Describe the major wartime efforts that took place in the U.S. during WWII. you are the network administrator for . the network consists of a single active directory domain. the network contains two servers named fs1 and fs2. Determine whether the series converges or diverges.[infinity] 3 / ( 4n + 5 )n=1 abcxyz, where ab=18 cm, bc=30 cm, and ca=42 cm. the longest side of xyz is 25.2 cm. what is the perimeter of xyz? when human societies began implementing agricultural technology, this social change was the result of: Two tiny particles having charges +20.0 C and -8.00 C are separated by a distance of 20.0 cm. What are the magnitude and direction of electric field midway between these two charges? (k = 1/40 = 9.0 109 N m2/C2)O 25.2 10^5 N/C directed towards the negative chargeO 25.2 10^4 N/C directed towards the negative chargeO 25.2 10^6 N/C directed towards the positive chargeO 25.2 10^6 N/C directed towards the negative chargeO 25.2 10^5 N/C directed towards the positive charge