A massive farm near our school has recently had a
decrease in crop production (e.g., not as many plants are
successfully growing). A soil ecologist was notified. She
immediately noticed that there were no worms, bacteria, or
other microorganisms in the soil, even though she knew that
many organisms were present in the soil five years ago. Based
on this information, she would probably say that the population
density of microorganisms had
a. Increased
b. Decreased
c. Immigrated
d. None of the above

Answers

Answer 1

Answer:

C. Immigrated

Explanation:

The plants stopped growing, so I imagine the microorganisms moved to find a better food source.


Related Questions

What are some ways that oceans influence climate change?

Answers

Answer:

Answer is below.

Explanation:

The oceans influence climate by absorbing solar radiation and releasing heat needed to drive the atmospheric circulation, by releasing aerosols that influence cloud cover, by emitting most of the water that falls on land as rain, by absorbing carbon dioxide from the atmosphere and storing it for years to millions of years.

Hope this helps:)

ANSWER: the oceans influence climate by absorbing solar radiation and releasing it is needed to drive the atmospheric circulation by releasing a resource that influence cloud cover by a meeting the most of the water that falls on land as a by absorbing carbon dioxide from the atmosphere and storing it for years to millions of years ii.

Explanation: hope it helps


A weather map is shown for the southern United States. According to the map, tornadoes are most closely associated with which
weather event?
A)
blizzards
B)
cyclones
hurricanes
D)
thunderstorms

Answers

D thunderstorms!!! Tornadoes are formed by thunderstorms

A weather map has been shown for the southern United States. According to the map, tornadoes are most closely associated with thunderstorms weather event. Thus, option D is correct.

What is the use of map in weather or garden?

Map is the distribution of flower in a garden. A diagram has been used to label an object so the parts can be recognised easily. A 3-D model has a xerox copy of the object in a three dimensional figure . An information  a word so one can assume infographic . A map helps to represent the layout of the land or distribution of flower in garden.

Geographic information system (GIS) has been analyzed and visualize data for geographic positions on Earth's surface. GIS has computer - based tool that examines spatial relationships, pattern and trends. By connecting geography with data, GIS better understands data using a geographic context.

Therefore, A weather map has been shown for the southern United States. According to the map, tornadoes are most closely associated with thunderstorms weather event. Thus, option D is correct.

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what is an amino acid

Answers

Amino acids are organic compounds that contain amino and carboxyl functional groups, along with a side chain specific to each amino acid. The key elements of an amino acid are carbon, hydrogen, oxygen, and nitrogen, although other elements are found in the side chains of certain amino acids.
Amino acids are Organic compounds

How many different amino acids are used in human proteins?

Answers

Answer:

20 amino acids

Explanation:

500 amino acids have been identified in nature, but just 20 amino acids make up the proteins found in the human body.

20 amino acids make up the proteins found in the human body.

What is the term for a number or amount of things?
A. Force
B. Quantity
C. Mass
D. Coordinate

Answers

Answer:

B:Quantity

Explanation:

hope this helps

PLEASE HELP!!!
In skeletal muscle, calcium ions leave the terminal cistern via the:
a. DHP receptor
b.Nicotinic ACh receptor
c.Ryanodine receptor
d.Calcium ATPase
e. Voltage-gated calcium channel​

Answers

Answer:

c.Ryanodine receptor

Explanation:

Calcium ion release from the SR, occurs in the junctional SR/terminal cisternae through a ryanodine receptor (RyR) and is known as a calcium spark.

Which statement best describes the relationship between an allele and a gene?

A.) An allele is a version of a gene that can be expressed as a phenotype.
B.) An allele is the primary protein made by a gene found in a developing embryo.
C.) An allele is the part of a gene that attaches to messenger RNA molecules.
D.) An allele is a segment of a DNA molecule that controls replication of a gene.

Answers

A.) An allele is a version of a gene that can be expressed as a phenotype.

the photo is below, pls help

Answers

Answer:

Billiard Ball Model

Explanation:

I used process of elimination.

The plum pudding model looks more like chocolate chip ice cream scoop.

As you can probably tell, that is not a solar system model.

It also is not a nuclear model because those look more like the attached file.

You are breeding alligators to be reintroduced in the wild. One of the female alligators is albino. Would it be possible to get normal colored alligators from this female? Identify the genotypes of each individual and show your work in
the Punnett squares below.

Answers

Answer:

It is possible for normal coloured alligators to be produced. If the albino trait is recessive and normal is dominant, the male would need 1-2 dominant alleles to produce a normal coloured alligator. It is also possible for a normal coloured alligator to be produced if albino is dominant and normal is recessive. In this circumstance, the female must be h e t e r ozygous, but the male can be either h o m ozygous or h e t e r o zygous to produce normal coloured offspring.

First punnet square genotypes:

Female - albino

Male - albino/normal (can be either one)

Second punnet square genotypes:

Female - Normal

Male - albino/normal (can be either one)

You perform an experiment using an aquatic plant to determine which color of light is most effective at driving photosynthesis. You take three plants, immersed under water, place plant A under blue light, plant B under red light, and plant C under green light. You notice bubbles coming off the leaves. More bubbles are coming from plants A and B, than plant C. How do these results determine which color of light is most effective at driving photosynthesis

Answers

Answer:

The plants producing more bubbles indicates that photosynthesis is more effectively driven by BLUE AND RED LIGHTS.

Please find explanation below.

Explanation:

According to this question, an experiment is being carried out to determine which color of light is most effective at driving photosynthesis. Three sets of aquatic plants (plants A, B and C) are used for this experiment. Plant A was placed under blue light, plant B under red light, and plant C under green light.

Photosynthesis is the process whereby plants manufacture their food (glucose) using sunlight energy. However, it is worthy to note that OXYGEN GAS is one of by-products of this metabolic process. Hence, as stated in this question, the bubbles noticed to be coming off the leaves is OXYGEN gas.

However, more products in a reaction denotes the fast rate of such reaction. Plants A and B produced more bubbles than plant C. This means that photosynthesis in plants A and B, which released more OXYGEN GAS as BUBBLES, is more effective under the blue and red light respectively.

What happens to the rate at which the reaction happens when the substrate levels increase?

Answers

Answer:

ok

Explanation:

If fertilization started in woman , mensuration will occur or not??? explain​

Answers

Answer:

Fertilisation happens if the egg cell meets and joins with a sperm cell in the oviduct. The fertilised egg attaches to the lining of the uterus. The woman becomes pregnant, the lining of the uterus does not break down and menstruation does not happen.

How do we know that height in humans
is a polygenic trait and not a single-gene
trait?

A. There is no way to know for sure.

B. People have varying heights.

C. Height is too complex to be controlled by a single gene.

Answers

C.........................

Which of the following is a guideline to follow when using pesticides

Allow pets to stay in area

Put up warning signs

Use one and a half times the recommended dose

Spray on a windy day​

Answers

I would say put up a warning sign.

Explanation.
If you used a pesticide on a windy day it’s gonna blow the product around so it might go into the places you wanted it
Having pets around certain pesticides when they are freshly sprayed can be very harmful to an animal.
And typically the recommended dose is correct so there’s no reason to use more

Help melee please...

Answers

Answer:

25%

Explanation:

The image is the punnet square. :)

See above diagram, a represents

Options
water

glucose

oxygen

CO2

Answers

Answer:

water

coz the process begins in stroma

Why is the scientific name for a gorilla, Gorilla gorilla?

Answers

Answer:

I'm pretty sure it's Gorilla Gorilla Glueilla Rilla

Explanation:

I THINK

A compact cluster of spore-bearing structures in
some seedless vascular plant sporophytes.

Answers

Answer:

B :)

Explanation:

Define the following term:
1. Pinhole camera

2. Screen

Answers

Pinhole camera: a camera with a pinhole aperture and no lens

Screen:a fixed or movable upright partition used to divide a room, give shelter from drafts, heat, or light, or to provide concealment or privacy.

What is a virus and what cause a viruses​

Answers

Meaning:A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.

Causes: Viral infections occur when a virus enters the body and invades the inside of the body's cells in order to reproduce. If the body's immune system is unable to fight off the virus, it multiplies and spreads to other cells, repeating the process and leading to a widespread infection.
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea

HELP PLS BRAINLIEST
Tubelike cells that carry food from the leaves to other parts of the plant are called?

Question 1 options:

Xylem


Phloem


Chloroplasts

Answers

Answer:

Phloem carry food from the leaves to other parts of the plant

Explanation:

Xylem carry water

Chloroplasts are organelles in cells wich allow the plant to photosynthesise

Phloem carry food from leaves to other parts of the plant, xylem carries water from roots to other parts of the plant.

describe the procedure for a civil law trial. what are the possibilities for the outcome of a case?​

Answers

A civil trial starts with the pleadings, where the plaintiff files their complaint with the court. The defendant can then answer the claim. This brings the trial to discovery, where each side gathers evidence for their argument before the judge


I hope this helps you I am Sorry if I am wrong
Have a nice day!

Answer:

A civil trial starts with the pleadings, where the plaintiff files their complaint with the court. The defendant can then answer the claim. This brings the trial to discovery, where each side gathers evidence for their argument before the judge

Explanation:

if you break down the word interactions, it means ”the actions between.“ How would you define interactions between two species?

Answers

Answer:

Symbiosis is an interaction characterized by two or more species living purposefully in direct contact with each other. The term "symbiosis" includes a broad range of species interactions but typically refers to three major types: mutualism, commensalism and parasitism.

Explanation:

Which of the following is a biotic in an ecosystem?

A. Wind

B. Tree leaves

C. Small rocks

D. Light from the sun

Answers

Answer:

tree leavessssssssssssssssssss

Answer:

B. tree leaves

Explanation:

A biotic is something in an ecosystem that are components of a community such as plants and animals. Leaves can be consumed by animals which makes them biotic. Temperature and climate are NOT biotic.

Have a good day.

When a human egg is fertilized by a sperm, the resulting zygote begins the process of cell division that eventually results in an organism with trillions of cells. The image shows a mass of human cells at the eight-cell stage, shortly after fertilization.



What is the best description of these cells?

adult stem cells
adult stem cells

embryonic stem cells
embryonic stem cells

marrow cells
marrow cells

Answers

Answer:

hope this helps not sure tho

Explanation:

Fertilization is the union of a male and a female gamete that gives rise to a zygote that is the first cell of the organism. Fertilization occurs in the sexually reproducing organisms. After fertilization , the zygote undergoes continuous division and Gives rise to a mass of cell that later on differentiate into cells that assume specialized function, each group of specialized cell then gives rise to organ system of the organism.

How is viral reproduction different from the reproduction of single-celled and multicellular
organisms?

A. The virus depends entirely on a host cell to reproduce.

B. The virus relies on nucleic acids, such as DNA, to reproduce.

C. The virus relies on proteins to reproduce.

D. The virus reproduces very rapidly, but in smaller numbers.

Answers

Answer:

A. The virus depends entirely on a host cell to reproduce

Viral reproduction different from the reproduction of single-celled and multicellular organisms because the virus depends entirely on a host cell to reproduce. Thus, option A is correct.

What are the difference between single- celled and multicellular organism?

The main difference between single- celled and multicellular organism is that single- cellled organisms are made up only single cell on the other hand multicellular organisms are made up of multiple cells.

Cell theory is a scientific theory that's help to learn how living organisms are made up of cells, that's they are the basic structure unit of all organisms, and that all cells from pre-existing cells.

Prokaryotic Cell

Prokaryotic cells are single-celled microorganisms known to be  earliest on earth.

Eukaryotic cell

Eukaryotic cells have a nucleus enclosed within the nuclear membrane and form large and complex organism.

Difference between unicellular and multicellular.

The main difference between unicellular organisms and multicellular organisms is that unicellular organism is unspecialized it means all the body function depends upon only on the single cell and in multicellular organism there is specific cells for specific purposes.

Multicellular and unicellular organisms are perform almost all the life running activities and processes such as respiration, reproduction digestion, breathing, and metabolism.

In unicellular organism division of labour is at the organ level on the other hand in multicellular the division of labour at cellular, tissue, organs and organ system level.

Unicellular organism has simple body organization and multicellular organism have complex body organism.

Therefore,viral reproduction different from the reproduction of single-celled and multicellular organisms because the virus depends entirely on a host cell to reproduce. Thus, option A is correct.

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1.
Which of these statements describes a niche?
- an environmental factor that tends to limit population size

- an increase in the Earth's average atmospheric temperature that causes corresponding changes in
climate, which may result from the greenhouse effect

- the unique living arrangement of an organism defined by its habitat, food sources, time of day it is
most active, and other factors

- none of the above

Answers

C is your correct answer.

- the unique living arrangement of an organism defined by its habitat, food sources, time of day it is most active, and other factors

Answer: the unique living arrangement of an organism defined by its habitat, food sources, time of day it is most active and other factors

Explanation:

yes

In dolphins, to have spots on the skin is a recessive trait. One spotted dolphin and one solid gray dolphin have a baby spotted dolphin. Go through the following steps to figure out the genotype of the parent dolphins.

1) what is the genotype of the spotted (recessive) parent?

Answers

Answer:

the spotted parent has the genotype ss

Explanation:

we will use s as the letter when describing the spotted trait.

since spotted is recessive, that parents have to have two little s to have the trait. Since the child also has that, we know that they will have the genotype ss.  the child would have to get a little s from both parents, so the solid parent would have Ss, showing as solid, but still having the gene for spots.

How are taxonomic keys used?

Answers

Answer:

A taxonomic key is a simple tool used to identify a specific object. A taxonomic key is one of the most useful tools available to scientists trying to identify an unknown organism. Systematists rely on keys to help identify known organisms and determine whether they have discovered a new organism entirely.

Explanation: Hope this helps

A copper atom has an atomic number of 29 and an atomic mass of 64. What
is the structure of this atom?
A. It has a central nucleus composed of 29 protons and 29 neutrons,
surrounded by an electron cloud containing 35 electrons.
B. It has a central nucleus composed of 29 protons and 64 neutrons,
surrounded by an electron cloud containing 29 electrons.
O C. It has a central nucleus composed of 35 protons and 29 neutrons,
surrounded by an electron cloud containing 29 electrons.
D. It has a central nucleus composed of 29 protons and 35 neutrons,
surrounded by an electron cloud containing 29 electrons.

Answers

Answer:

D just took the test on APX

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