Answer:
fern is the producer.
Explanation:
producers are mainly green plants.
Fossil fuels are made when....
A. organisms don't fully decompose and become
trapped underground
B. organisms collide at high speeds during
catastrophic events
C. bedrock is liquidated due to shifting tectonic
plates
D. volcanic ash is liquidated under extreme pressure
Answer:
A
Explanation:
a - What happens when organisms don't decompose? If there were no decomposers, wastes and the remains of dead organisms would pile up and the nutrients within the waste and dead organisms would not be released back into the ecosystem. Producers would not have enough nutrients.
b - What happens when a catastrophic mass extinction occurs? A mass extinction event is when species vanish much faster than they are replaced. This is usually defined as about 75% of the world's species being lost in a 'short' amount of geological time - less than 2.8 million years
c - What does the shifting of tectonic plates cause? At the “seams” where tectonic plates come in contact, the crustal rocks may grind violently against each other, causing earthquakes and volcano eruptions. The relatively fast movement of the tectonic plates under California explains the frequent earthquakes that occur there.
d - Volcanic ash doesn't actually do that.
Now, how do fossil fuels form? After millions of years underground, the compounds that make up plankton and plants turn into fossil fuels. Fossil fuels are formed when the organic matter that has been buried deep within the earth is subject to heat and pressure over millions of years. In both cases, heat and pressure are critical to the formation of fossil fuels.
so your answer is a
hope this helps:)
A researcher is concerned about a population of Bavarian pine voles, a type of endangered rodent. The researcher wants to estimate the genetic diversity of the population by collecting DNA samples from some of the pine voles. Which sampling method should he use?
Tagging and wildlife tracking. Thus, option "C" is correct.
What is Wildlife tracking?Wildlife tracking is a process employed by biologists and scientific researchers including conversational agencies to remotely the movements and migratory patterns of free-ranging wild animals using GPS and other sensors.
The tracking and monitoring of these endangered species is vital because it helps in the conservation process. Through the monitoring of wildlife, agencies can keep track of animal potters, population demographics and habitat utilization.
Thus, option "C" is correct.
A.
netting
B.
quadrat sampling
C.
tagging and wildlife tracking
D.
point counts
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The conduction system contains pacemaker cells, nodes, the __, and the __.
The conduction system contains pacemaker cells, nodes, the Purkinje fibers, and the bundle of His.
What is the conduction system of the heart?The conduction system of the heart refers to the the system of cells and fibers which enables conduction of nerve impulse which enables the contraction of the heart.
The conduction system of the heart consists of:
Sinoatrial nodeAtrioventricular nodeAtrioventricular bundle (bundle of His)Purkinje fibersTherefore, the conduction system of the heart coordinates the contraction of the heart.
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VALUE BASED QUESTION (Write in about 50-100 words)
Consider the following two cases: (Please give answer ASAP)
(i) A forest that is rich in biodiversity sees a decline in the animal population and clearing of a large
part of the forest. The Government declared it as a biodiversity hotspot and the forest regained its
species richness in few years.
(ii) A lake that is rich in marine fishes sees a decline in its species population due to over harvesting.
The people living in the area made the lake a sacred grove and started worshipping it. The species
population of the lake again became normal.
Answer the following questions based on the above information:
(i) Which values are being promoted in the above cases?
Case 1:-
Case 2:-
(ii) Suggest some ways in which you can contribute to this concern.
Case 1:-
Case 2:-
(iii) What would have been the effect if the forest was not declared a biodiversity
hotspot?
The value that can be withdrawn from case 1 is the activeness of the government that takes some crucial steps to maintain the biodiversity of the forests. The value that can be withdrawn from case 2 is the sincerity of native people towards nature who make a lake a sacred grove and start worshipping it in order to maintain the biodiversity of that lake.
What is Biodiversity?Biodiversity may be defined as the sum total of all the living entities living in a particular area at a given time.
For maintaining the biodiversity of the forest as well as a lake, it is required not to deteriorate the natural ecosystem of those regions by human activities like over grazing, forest fires, over harvesting, industrialization, etc.
If the forest has not been declared a biodiversity hotspot, the time will not be far to announce that a forest becomes a bare area, where no species live, survive, and reproduce naturally.
Therefore, it is well described above.
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The genotype for being a red flower is RR, and the genotype for being a white flower is WW. If the colour of the flower is an example of incomplete dominance, use Punnet squares to show the ratio of the phenotypes in the F1 and F2 generations if you cross a red and a white flower.
Answer:
Explanation:
The F[tex]_1[/tex] and F[tex]_2[/tex] Generations are drawn in Punnett squares below. Please excuse the messy drawings.
Ratios:
F1 Generation:
RW - Red and White Cross - 4/4 = 100%
F2 Generation:
RR - Red only - 1/4 = 25%
RW - Red and White Cross - 2/4 = 50%
WW - White only - 1/4 = 25%
The pH is a measure of the concentration of the hydrogen ion (H+) in water. Highly acidic water has a very high H+ concentration, while basic water has very low H+ concentrations. The pH scale is a logarithmic scale, such that a difference of one pH unit means a 10-fold difference in H+ concentration. The mathematical relationship between pH and H+ concentration ([H+]) is
pH = –log [H+] OR [H+] = 10-pH where [H+] is in moles per liter.
Use a scientific calculator to calculate [H+] for the following pH values:
7 (a neutral solution)
5.6 (unpolluted rainwater)
3.7 (first acid rain sample in North America)
How many times higher is the concentration of H+ in the Hubbard Brook sample than in unpolluted rainwater?
The hydrogen ion concentration of the following pH samples is as follows:
7 (a neutral solution) = 0.8455.6 (unpolluted rainwater) = 0.7483.7 (first acid rain sample in North America) = 0.568How to calculate hydrogen ion concentration (H+)?The pH is a measure of the concentration of the hydrogen ion (H+) in water. This means that a relationship exists between H+ and pH of a solution.
The mathematical relationship between pH and H+ concentration ([H+]) is as follows:
pH = –log [H+]
This means that the hydrogen ion concentration (H+) of the following pH values can be calculated thus:
log 7 (a neutral solution) = 0.845log 5.6 (unpolluted rainwater) = 0.748log 3.7 (first acid rain sample in North America) = 0.568Learn more about pH at: https://brainly.com/question/15289741
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how do technology helped to support the theory of evolution?
Ecology always considered the atoms in an ecosystem. True False
The statement 'Ecology always considered the atoms in an ecosystem' is False.
What is Ecology?Ecology can be defined as the integral study of biotic and abiotic factors interacting with each other in an ecosystem.
Although atoms are an integral component of all living organisms and non-living entities it do not involve the study of ecology.
In conclusion, the statement 'Ecology always considered the atoms in an ecosystem' is False.
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The common health-associated infection seen in an outpatient setting, called mrsa, is caused by which type of bacteria?.
Methicillin-resistant-staphylococcus-aureus (MRSA) infection is caused by the bacteria called staphylococcus aureus, which leads to skin infections in mild form and respiratory diseases in severe form.
Hospital-Acquired MRSA – is associated with infections that are caused due to exposure to hospital or nursing home environments.The infection can be caught through direct contact or contaminated hands. Sometimes touching used surgical instruments or infected bedsheets can also pass on the infection leading to severe pneumonia or blood infections. Hence, people hospitalized for longer durations, live in nursing homes, or visit hospitals regularly without protection are prone to get a staph infection.Hospital acquired MRSA often causes severe symptoms compared to community-acquired MRSA due to prolonged exposure to bacteria.learn more about MRSA here: https://brainly.com/question/8190489
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Which protein in the electron transport system listed in the box to the rightfunctions as diffusible soluble protein
The protein in the electron transport system listed in the box to the right functions as diffusible soluble protein is Cytochrome C.
What is the role of cytochrome c?Cytochrome c is a small heme protein that is associated with the inner membrane of mitochondria. It is a soluble protein, unlike other cytochromes, and is an essential component of the electron transport chain. It is capable of performing oxidations and reductions, but does not bind oxygen.
In this case, diffusible soluble protein is Cytochrome C is an essential component of the electron transport chain.
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Dihybrid crosses
???
Answer:
The answer is 25% tall/green, 25% tall/white, 25% short/green and 25% short/white
Hope it helps!
Help! my nose bleed for more than 30 min and i feel abit dizzy what shoud i do, i am a little kid and my parents are sleeping because it is 6 am what should i do
Which of the following correctly compares Kinetic and Potential Energy?
Select one:
O a. Potential energy is stored energy and kinetic energy is the energy of motion.
O b. Kinetic energy is stored energy and potential energy is the energy of motion.
Potential energy is always zero.
Oc.
Od. Kinetic energy is always higher than potential energy.
Pietro has two dogs that are related, and he wants to understand why one of the dogs has tan fur and the other has brown fur.
answer :)
Harry is studying four surface features of Florida. He classifies the surface features and places them in different columns of a chart as shown below.
Surface Features
Column 1 Column 2
Sinkhole Hot springs
Caverns Geysers
Which of these titles best represents Column 2 of Harry's chart?
formed by freezing groundwater
formed by heating groundwater
formed by evaporation of groundwater
formed by chemical action of groundwater
The title that best represents Column 2 of Harry's chart is B. formed by heating groundwater
What is a Hot Spring?This refers to the geothermally heated groundwater that is formed on the surface of the earth.
Hence, we can see that from Column 2 of Harry's chart, there is the presence of Hot springs and Geysers which are both formed by heating groundwater and option B is correct.
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Answer:b
Explanation:took a test
when speaking of the anatomy of a virus, we can say that ________.
When speaking of the anatomy of a virus, we can say that it is a protein capsid which comes in form a RNA or DNA
What is anatomy of a virus?A virus is of a single or double-stranded nucleic acid surrounded by a capsid (called the protein shell).
When they are inside the living host cell, they can only produce once. Hence we can conclude that when speaking of the anatomy of a virus, we can say that it is a protein capsid which comes in form a RNA or DNA
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Robert Hooke first observed cork under a microscope in jail so he named the small cubicles cells
False True
Robert Hooke first observed cork under a microscope in jail so he named the small cubicles cells is False.
Though "Robert Hooke" was the first person to observe cork under a microscope. He named the small cubicles cells because it used to remind him of the cells in the monastery
What is Robert Hook's discovery?Discovered microscopeDiscovering cells while observing a piece of cork under a microscopeRobert hook is considered the father of cell theoryHe found cell is a small structure and due to his discovery others were able to study more about the cell and explained that the cell is the basic unit of life.
Thus, the answer is false.
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Hello can someone help me please and thank:)
Answer:
B- J, L, K
Explanation:
Wrong Subject but the largest side's opposite angle is the largest if that made sense. For example, KL which is the largest side corresponds to the largest angle <J.
Sickle cell is an example of what
Sickle cell is an example of an autosomal disorder.
What are autosomal disorders?They are diseases or abnormalities that are genetic in nature and whose alleles are located on non-sex chromosomes or autosomes.
Sickle cell is an autosomal recessive disease that is inherited by getting affected alleles from the two parents.
Autosomal disorders are different from sex-linked disorders. The alleles of sex-linked disorders are located on the sex chromosomes instead of autosomes.
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Read the scenarios below. For each of the scenarios, identify the following (you should identify the 3 for EACH of the scenarios):
Control Group Independent Variable Dependent Variable
A. John thinks that a special juice will increase the productivity of workers. He creates two groups of 50 workers each and assigns each group the same task (in this case, they're supposed to staple a set of papers). Group A is given the special juice to drink while they work. Group B is not given the special juice. After an hour, John counts how many stacks of papers each group has made. Group A made 1,587 stacks, Group B made 2,113 stacks.
The following were required;
Dependent Variable - productivity of workersIndependent Variable - drinking the special juiceControl group - Group BWhat is a variable?A variable is a measurable quantity that changes in an experiment. The variable that is manipulated in the experiment is called the independent variable.
Now these are the variables that are involved in this experiment:
Dependent Variable - productivity of workersIndependent Variable - drinking the special juiceControl group - Group BLearn more about experiment variable:https://brainly.com/question/16550062?
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How many chromatids does a human somatic cell contain after interphase and just prior to mitosis?.
Answer:
Explanation:
92
Which of the following is NOT one of the 3 major areas of society affected by science?
1. write about the natural resources of ethiopia and why we need to take of them
Identify the bone.
This is all that was given to me and so far I've deciphered that this doesn't exactly look like a part of the mandible.
digestive tract & ____________________ together constitute the digestive system.
Answer:
Digestive tract & Accessory glands together constitute the digestive system.
Explanation:
The accessory organs are the teeth, tongue, and glandular organs such as salivary glands, liver, gallbladder, and pancreas.
When your body goes into fight-or-flight mode, what happens to the oxygen that is in your brain?.
Answer:
Fight or flight
The amygdala activates this fight-or-flight response without any initiative from you. When that part of your brain senses danger, it signals your brain to pump stress hormones, preparing your body to either fight for survival or to flee to safety.
HELP REAL QUICK PLEASE!
What causes the
sun's rays to hit
different parts of
earth at different
angles?
A. the curve of the earth
B. the magnetic field of the
earth
C. the distance between
the sun and the earth
D. more wind from the
equator
Answer:
A...because the earth is round therefore the sun cannot hit the same places
What safety rule should you follow when performing an experiment that involves electricity?
what is meant by afterglow?
Answer:
A light or radiance remaining in the sky after the sun has set.
Explanation:
: a glow remaining where a light has disappeared. 2 : a pleasant effect or feeling that lingers after something is done, experienced, or achieved basking in the afterglow of success.Select the correct answer from each drop-down menu. genes are segments of dna that determine the phenotype of an individual. pea colors can be yellow or green. when two plants that produce yellow peas were crossed, the offspring produced green peas. this is because the parents were for pea color. because there are only two options for pea color, the plants’ pea color is a case of
The correct answer is as follows.
This is because my parents were heterozygous for the color of the beans. The color of the plant beans is the case of simple Mendelian laws, as there are only two choices for the color of the beans.
What is the meaning of Mendel's laws?Mendel's laws refer to a specific pattern of how a trait is passed from parent to offspring. These common patterns were established by the Austrian monk Gregor Mendel, who conducted thousands of experiments on bean plants in the 19th century.
What is an example of a heterozygous?If the two versions are different, the genotype of the gene is heterozygous. For example, a heterozygous hair color means that there is one red hair allele and one brown hair allele. The relationship between the two alleles affects which trait is expressed.
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What is the function of the primers in pcr?
The function of primers in polymerase chain reaction is that it serves as the starting point for DNA synthesis.
Function of primers in Polymerase chain reaction
Primers function in PCR by;
Primers serve as the starting point for DNA synthesisThe polymerase enzyme can only add DNA bases to a double strand of DNA. Only once the primer has bound can the polymerase enzyme attaches.Thus, the function of primers in polymerase chain reaction is that it serves as the starting point for DNA synthesis.
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