Year after year, Xavier raises a vegetable garden in the same plot of soil. He observes that the plants grow less abundantly from one year to the next, and they produce fewer vegetables. Which of these processes could help explain Xavier's observations?
A. the rate at which soil bacteria perform photosynthesis
B. the rate at which soil bacteria perform denitrification
C. the rate at which soil bacteria perform nitrogen fixation
D. the rate at which soil bacteria perform chemosythesis
Answer:
C. The rate at which soil bacteria perform nitrogen fixation
Explanation:
Since Xavier is raising vegetables in the same spot year after year it is reasonable to expect that the plants would deplete the soil of its resources. Since the soil doesn't have enough minerals and not enough time for the bacteria to perform nitrogen fixation the plants don't grow at the same rate and numbers that they used to at the beginning.
How might nutrition and exercise influence whether or not an individual develops a disease for which they have an inherited higher risk?
Answer:
Nutrition and exercise are directly related to certain genetically influenced diseases, such as obesity. Individuals who inherit genes conferring a higher risk of obesity may be able to avoid any issues through good nutrition and exercise habits.
Explanation:
Took quiz edge 2021
The impact on the nutrition and exercise for developing the disease should be like high obesity risk that represent the inherited higher risk.
Reason of impact on the nutrition and exercise:
The nutrition and the exercise are inter-related and it impacted the diseases like the obesity, high blood pressure, diabetes, etc.
The individuals that inherit genes that conferred represent the high obseity risk should capable for avoiding the issues via the good nutrition and have the habit of exercise.
Learn more about disease here: https://brainly.com/question/13718973
2. Think about an animal like a rhinoceros, a deer, or an antelope. What parts of their body other than their hair must be composed of quite similar material to your nails and hair
Answer:
horns and hooves
Explanation:
horns and hooves are made of kerotin, just like nails and hair.
Keratin is the protein that composes the external layers of the epidermis. It can be found in elements like feathers, nails, and hair. Other parts of the body that might be composed of keratin are horns and hooves.
-------------------------------------
Keratin is a fibrous protein that can be found in epithelial cells that cover internal and external surfaces.
Keratin is the main component of horns, hooves, feathers, hair, and nails.
Horns are hollow and pointed structures that emerge from the skull of the animal.
Animals get born hornless. As they grow they develop these structures. Most of them complete the development near the reproductive stage of the animal.
At sexual maturity age, competitive interaction increases, and animals use them to defend themselves and hurt the opponent. Males of some species also use them to attract females.
Hooves are very developed nails that cover the ugunaltes' fingers. These animals only use the extreme of the fingers to walk.
Like all nails, hooves grow continuously and wears out as the animal walks or runs.
----------------------------------
Related link: https://brainly.com/question/11126296?referrer=searchResults
8) Outline what you would need to know to answer the following question: of all the proteins that exist on earth at this time, what fraction of them have a known structure
Answer:
To solve this question, it is necessary to consider the number of protein structures that have been empirically verified and the number of Open reading frames predicted from sequencing data
Explanation:
The most common methodologies used to determine protein 3D structure are nuclear magnetic resonance (NMR) and X-ray crystallography. Although both methods are efficient, the determination of 3D protein structures in physiological conditions is a time and cost-consuming task. Moreover, due to recent advances in bioinformatics and sequencing methodologies, the amount of protein Open Reading Frames predicted from sequencing data (especially obtained from Next Sequencing Generation studies) is many times higher. Indeed, less than 5% of sequenced proteins have an empirically validated 3D structure.
What does it mean for a model to be "to scale", or a scaled model?
Answer:
To scale means it's the same size as in real life, as in 1 foot = one foot
Scaled means it's shown either larger or smaller, as in 1 foot = 1 inch or 1 foot = 1 mile
Explanation:
which statement best describes the water cycle:
a: a simple circular path that water takes around earth
b: a complex path that water repeats
c: a cycle if processes by which water circulates the earth's oceans , atmosphere , and land.
Answer:
C. A cycle of processes by which water circulates the earth's oceans, atmosphere, and land.
Explanation:
The term water cycle (also called the hydrologic cycle or the hydrological cycle) refers to the way water moves on, above, and below the surface of the Earth.
As the sun heats up the surface of our planet, water evaporates from it, rises up into the atmosphere, cools, and turns into rain or snow in clouds. Then, in this form, it falls on the surface again. This cycle constantly repeats itself, which means that water moves all the time.
You can see an illustration of this phenomenon in the image attached below:
The __ is the relatively rigid zone above the asthenosphere that includes the crust and upper mantle.
O mantle
O core
Olithosphere
O crust
Where did most of the heat of the Earth come from at its formation?
A Seismic waves
B Radioactive decay
C Planetesimals crashing into each other
D peridotite xenoliths
Which group of elements most readily combines with Group 17 elements?
a. Group 1
b. Group 17
c. Group 18
d. none, as Group 17 is the most stable group
Answer:
a. Group 1
Explanation:
Group 17 elements react most with group 1 elements because group 1 elements are metals.
HURRY I WILL GIVE BRAINLIEST AND VERIFIED ANSWER & 100 PTS Earthworms are a species of worms that lives in moist soil along with other organisms like tiny insects and bacteria. Earthworms obtain water and nutrients by eating dead plant material found in the soil. Earthworms also release waste materials that help enrich the soil. Based on this information, which sentence is correct? The earthworms are an environment. The earthworms are a community. Soil is the earthworm’s habitat. Soil is the earthworm’s niche.
Answer:
it has to be the last and 2nd last one of them
Explanation:
Sorry if this is wrong
Which process occurs within the mitochondria? lactic acid fermentation alcohol fermentation glycolysis Krebs cycle
Answer:
D) Krebs cycle
Explanation:
i just took the quiz
The process that occurs within the mitochondria is the Krebs cycle. In the matrix of mitochondria the reactions known as the citric acid or Krebs cycle produce a chemical called NADH.
Which process occurs within mitochondria?The process is called oxidative phosphorylation and it occurs inside mitochondria.
In the matrix of mitochondria the reactions known as the citric acid or Krebs cycle have a chemical called NADH.
NADH is then used by enzymes ingrained in the mitochondrial inner membrane to generate adenosine triphosphate (ATP).
Thus, In the matrix of mitochondria the reactions known as the citric acid or Krebs cycle have a chemical called NADH.
To learn more about Krebs cycle click here:
https://brainly.com/question/13153590
#SPJ2
does the number of particles change as a substance changes in state?
Explain why emerging efforts are focused on reducing health risks from exposure to chemicals rather than completely
eliminating those risks.
Answer:
Working with all chemicals carries some level of health risk, and modern society is dependent upon thousands of chemicals to maintain our standard of living. Therefore it is not reasonable to eliminate all chemical related health risks because that would require we stop using chemicals like cleaning supplies, gasoline, and fertilizers. The more practical approach is to minimize and manage the health risks associated with chemical exposure.
Explanation:
answer on edge
Answer:
This is the example answer they give you
Explanation:
Working with all chemicals carries some level of health risk, and modern society is dependent upon thousands of chemicals to maintain our standard of living. Therefore it is not reasonable to eliminate all chemical related health risks because that would require we stop using chemicals like cleaning supplies, gasoline, and fertilizers. The more practical approach is to minimize and manage the health risks associated with chemical exposure.
What two factors play a role in the type of snow flake created?
Answer:
Two factors play key roles in determining the shape of a snowflake: temperature and humidity.
Explanation:
Which best describes the process of evaporation/transpiration in the
water cycle?
O A. Water from the ocean enters the atmosphere as water vapor.
O B. Water on the surface of Earth enters the groundwater supply.
C. Water vapor in the atmosphere returns to the surface of Earth as
liquid water.
O D. Water on the surface of Earth and water lost by plants enters the
atmosphere as water vapor.
Answer:
A
Explanation:
Answer:
The answer is D
Explanation:
Water on the surface of Earth and water lost by plants enters the atmosphere as water vapor
The person above me is wrong I tried it and it was wrong and I tried D and I got it correct
1) State three economic importance of Amoebiasis,
Answer:
An amoeba's economic value can be found in medicine and nutrient recycling. According to Biology Reference, certain amoeba species can cause sickness and death, while others are important in maintaining healthy ecosystems because they recycle the nutrients needed by bacteria and keep the bacterium population under control.
OAmalOHopeO
If 100 grams of vinegar and 5 grams of baking soda are poured in a container, a small amount of gas will be produced. What will the final mass of the products be if the gas is trapped in the
container?
Answer: I think it is 105 grams
Explanation: Because classic chem and math states 100+5= 105
The final mass of the products if the gas is trapped in the container will be 105 g
From the law of conservation of matter, we understood that mass can neither be created nor destroyed during a chemical reaction but can be transferred from one form to the other.
This implies that the total mass of reactants must be equal to the total mass of products i.e
Total mass of reactants = Total mass of products
Considering the question given above, the following data were obtained:
Mass of vinegar = 100 g
Mass of baking soda = 5 g
Total mass of reactant = 100 + 5 = 105 g
From the question given above, we also discovered that the gas produced were trapped in the container.
This simply means that the total mass of reactants (i.e 105 g) will also be equal to the total mass of the products.
Thus, the total mass of the products is 105 g.
Learn more: https://brainly.com/question/25029560
Is simple diffusion passive or active transport
Answer:
Simple diffusion is a passive transport.
Explanation:
The reason why its a passive transport is because Simple diffusion does not require energy: facilitated diffusion requires a source of ATP. Simple diffusion can only move material in the direction of a concentration gradient; facilitated diffusion moves materials with and against a concentration gradient.
Explain the path food takes from your plate to becoming waste.
The digestive system plays an important role in the absorption of nutrients into the body. It takes the food we ingest, breaks it down mechanically and chemically in the mouth and stomach. It then absorbs nutrients, fats, proteins and water in the intestines before eliminating the waste through the rectum.
Farmers have selected for increased oil content from corn. For a long time, the plants responded with steadily increasing oil content, but recently the response slowed and then stopped. When this line of corn is crossed to another line and the hybrids are selected, the oil content resumed its climb. What is a plausible reason for the lack of response?
A. The environmental conditions improved.
B. The genetic variation for the trait was exhausted.
C. There was too much genetic variation for the trait.
D. The environmental conditions deteriorated.
E. Artificial selection is different than natural selection.
Answer:
B. The genetic variation for the trait was exhausted.
Explanation:
Oil content is a quantitative trait, ie., a phenotypic feature that depends on the accumulative effects of many genes and the interaction of a genotype with its environment. During crop improvement, the plants (i.e., lines) containing desired alleles involved in the variation of this trait will be selected, thereby increasing oil content but simultaneously decreasing the genetic variation of the population. In consequence, after successive rounds of artificial selection, lines will not have sufficient genetic diversity to be again selected for this trait.
PLEASE HELP ME ITS FOR 17 POINTS!!!!!!!!!!!!!!!!!!!!
A forest area is being used for a new housing development. Most of the trees have been removed to make room for the
new houses. Predict the impact that this will have on the birds in the area.
The bird populations will stay the same because humans love birds.
The bird populations will decrease because humans see them as pests.
© The bird populations will increase because humans do not interfere with wild animals.
The bird populations will decrease due to competition for resources such as food and nesting sites.
Answer:
The bird populations will decrease due to competition for resources such as food and nesting sites.
Explanation:
Their food and habit is being taken away so they will have to compete. I hope this helps you! :)
Possible Brainliest? You don't have to if you don't want to!
Compact bone contains cylinders of calcified bone called ______________________. These cylinders consist of 4 to 20 Compact bone contains cylinders of calcified bone called concentric rings of bone known as:___________________.
a. osteons, canaliculi
b. lamellae, canaliculi
c. osteons, lamellae
d. Haversian canals, lamellae
e. none of the above
Answer:
The correct answer is c. osteons, lamellae
Explanation:
An osteon is the basic functional unit of the cortical bone of a tubular bone. An osteon consists of a central canal that contains two vessels of Havers. Concentric bony laminae are arranged around this canal. These lamellae consist of bone cells and the surrounding base substance. Between the Havers canals there are Volkmann canals that connect the Havers canals. The construction of the cortical bone in these functional units has not yet been fully clarified. In general, it is assumed that these structures serve primarily to deliver tissue and signal transduction. This structure is also supposed to serve the stability and adaptability of the bone.
PLEASE HELP MEEE. _______ and _____
are what we call the molecules
before and after a chemical reaction.
The terms we call the molecules before and after a chemical reaction are - reactants and products respectively.
Molecules before and after a chemical reactionChemical reactions are takes place when chemical bonds form between molecules and atoms of substances. There are two-part to any chemical equation: part before the chemical reaction and after the chemical reaction.
In the part before the chemical reaction starts, there are molecules of the substance is called reactants that react with one another in chemical reaction and form or break chemical bonds of molecules. Products are newly formed substances by forming bonds in a chemical reaction.
Find more information about the chemical reaction:
https://brainly.com/question/26018275
Reactants and products are the names that we call the molecules before and after a chemical reaction respectively.
What is a Chemical reaction?A chemical reaction may be defined as a mechanism that significantly directs the chemical transformation of one set of chemical substances or molecules to another. This process of chemical transformation utilizes numerous catalysts to enhance the rate of reaction.
The amount or number of chemical substances or molecules that are present before the progression of reaction are known as reactants.
While after the successful progression or completion of a specific chemical reaction such reactants are performed into another, these substances or molecules are known as products.
Both the molecules of reactants and products possess some sorts of chemical identity in order to distinguisg from each other.
Therefore, Reactants and products are the names that we call the molecules before and after a chemical reaction respectively.
To learn more about Chemical reactions, refer to the link:
https://brainly.com/question/11231920
3SPJ2
how do scientists classify species?
Answer
d because that's what they causally do
Answer:
A
Explanation:
A P E X
Observed evidence that support the theory of evolution by natural selection includes
A Fossils, DNA sequences, and homologous structures.
Phenotypes, food preferences, and fossils
C Gene flow, mutations, and tropisms
D) Tropisms, genetic drift, and speciation
what is the value of 6a + 3
Answer:
3 ( 2 + 1 )
Explanation:
You are looking at the side of a cliff with many horizontal rock layers. In the upper layers you find fossils of rodents, but in layers further below you find amphibians but no rodents. In some still-deeper layers there are neither amphibians nor rodents but there are fossils of beetles and other insects. In the deepest layers you find no insects but you do find millipedes. This fossil evidence suggests that
Answer:
millipedes were the first of these animal groups to evolve.
Explanation:
Fossils are structural remains of animals from the past. As these animals die, it takes years for the remains to be buried.
The millipedes are at the lower layer of the rock, next to insects, amphibians, and then rodents. This shows that millipedes existed and evolved before the rest of the found animal fossils.
Which statement describes an important role of carbon dioxide in Eartly's atmosphere?
Animals breathe carbon dioxide
Plants use carbon dioxide to make food,
Carbon dioxide helps animals make proteins
Carbon dioxide forma clouds that produce rain
Answer:
Plants use carbon dioxide to make food
Explanation:
Plants take in the carbon dioxide animals create when they breathe, and in exchange, they produce glucose (their food) as well as oxygen (if I remember correctly)
Answer: The answer is: Plants use carbon dioxide to make food
Explanation: I have my ways :>
Have a great day!
-Sunny
25-1
Seasonal
Forest
Biome
Productivity
Kcal/m2/year
i Thom Scrub
Grasse
Desert
TROPICAL
20-
Scrubber Semi Dosen
Tundra
600
IS-
TEMPERATE
Grassland
2000
10-
Mean Annual Temperature (°C)
Pesert
200
0-
Seasonal
Forest
6000
5-11
Tundra
Rainforest
9000
10-
Scrubland
1000
500 1000 1500 2000 2500 3000 3500 4000
Mean Annual Precipitation (mm)
Based on the data given in the graph and table, which environmental factor contributes
to greater biodiversity?
O Plant biomass per meter
0 Available water
Average latitude
0 Average temperature
Answer:
18000
Explanation:
you add all the mean Annual precipitation
Badgers are a type of mammal that eats mostly earthworms and insects. They sometimes eat small mammals, birds, and reptiles, as well as plant roots and fruit.
What kind of teeth would you expect a badger to have?
some flat and some round
all flat
some sharp and some flat
all sharp
Answer:
I wouldn't think badgers teeth are all that sharp so my answer is some sharp and some flat.
Answer:
its C
Explanation:
u can look up a picture of their teeth