Why should we be concerned about the disappearance of phytoplankton in the oceans
Answer:
The loss of phytoplankton is a huge problem for marine food chains, says Worm, because every creature in the ocean either eats phytoplankton or eats other organisms that depend on it.
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Of the 6 essential elements found
in every living thing, known as
'CHONPS', which of the following
are most prevalent?
Answer:
oxygen is the most prevalent in living organisms
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Why are stains used in prepared slides such as the ones you used in this lab?
Use complete sentences.
Answer:
he most basic reason that cells are stained is to enhance visualization of the cell or certain cellular components under a microscope. Cells may also be stained to highlight metabolic processes or to differentiate between live and dead cells in a sample.
Explanation:
What are three characteristics of the gas giants that are different from the terrestrial planets?
Answer:
Gas Giants like Jupiter, Saturn, and Neptune have very low temperatures, they have no solid surface to stand on, and they have belts of space debris that orbit around them, terrestrial planets do not share these features
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Which of the following describes the benefits of free-range grazing for meat production?
l.Organic wastes as fertilizer
II.Antibiotic and hormone free
III.Larger animals
IV.Provides quality meat
a
I and II
b
I and IV
c
I, II, and IV
d
I, II, and III
Answer:
C
Explanation:
free range grazing has been proven to have more quality meat. plus free range gives the opportunity to have fertilizer and obviously the grazing for free range animals is hormone free
The following describes the benefits of free-range grazing for meat production are,
Organic wastes as fertilizerAntibiotic and hormone freeProvides quality meatSo, the correct option is C.
What is free range grazing?This is the method of meat production.In this method, animals are not fenced and able to roam and graze freely.The disadvantage of free rang gazing is less intensive systems.The method is known as Concentrated animal feeding operations also called feedlots and free-rang grazing.To learn more about ,
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The Earth's biodiversity is determined by the variety of all living organisms on Earth. In recent years, ecologists and other scientists have encouraged the preservation of global biodiversity through the protection and management of natural ecosystems. Preserving the biodiversity of the Earth is important because
Answer:
The Earth and its Biodiversity is a living laboratory
Explanation:
The importance of preserving Earth's Biodiversity remains on the idea that every single living organism that existed here on Earth is an example of how Nature can express itself. This means that we as humans can learn with every mechanism that has been developed through millions of years and apply to our self been.
Answer:
all of these
Explanation:
The preservation of the biodiversity of the Earth is important for many ecological, economic, and cultural reasons.
Biodiversity increases ecosystem stability for a given type of ecosystem because greater species diversity ensures natural sustainability of all life forms within the ecosystem. Ecosystems are also highly interconnected and the removal of even a few species can cause ecosystem disruption.
The organisms of Earth's ecosystems provide services that humans cannot replicate. These ecosystem services include the generation of soil that is typically done by microbial and animal species, the maintenance of air quality that is done by plants, the decomposition of wastes that is done by the Earth's decomposers, and the maintenance of water quality that is done by wetland ecosystems.
Why do you think eclipses still capture human imagination and interest, even though we can now predict t understand them better?
Answer:
Eclipse is defined as an event in which one celestial body crosses another celestial body. for example Lunar eclipse, when the moon moves into the shadow of the earth.
Scientists has invented a lot about eclipses and now it is able to predict eclipses but human is a curious animal, different people have different views and beliefs, so people with religious beliefs have different imagination about eclipse. In the solar system everything changes with time, so we can't say that the prediction about eclipse will be true always.
Which is not an example of matter and energy cycling three living things
Answer:i'm going with 1 or b
Explanation:
please help
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Urgent
Explanation:
4-option c
5-
homeostasis:the tendency towards a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.
excretion:(in living organisms and cells) the process of eliminating or expelling waste matter.
ultrafiltration:Ultrafiltration is the removal of fluid from a patient and is one of the functions of the kidneys that dialysis treatment replaces. Ultrafiltration occurs when fluid passes across a semipermeable membrane (a membrane that allows some substances to pass through but not others) due to a driving pressure.
endotherman:animal that is dependent on or capable of the internal generation of heat.
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What is the ratio of unaffected females to affected females? (remember to simplify the ratio if it can be simplified)
Answer:
2. Approximately 75% of cases are sporadic and males are usually miscarried. Therefore, when the mother is affected, 1/3 of the female offspring will be unaffected, 1/3 of females will be affected, and 1/3 of males will be unaffected.
Proteins build up, maintain and replace the tissues in your body.
true false
Answer:
True
Explanation:
Protein provides energy and supports your mood and cognitive function. It's a vital nutrient required for building, maintaining, and repairing tissues, cells, and organs throughout the body.
Producers transform light energy into chemical energy. True or false
False.................
in which direction is heat being transferred?
Answer:
And unless people interfere, thermal energy — or heat — naturally flows in one direction only: from hot toward cold. Heat moves naturally by any of three means. The processes are known as conduction, convection and radiation. Sometimes more than one may occur at the same time.
Explanation:
Do trees keep their internal parts separate from the outside environment?
Answer:
yes, they do.
Explanation:
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Each year, the United States' federal costs exceed the anticipated national budget. In fact the last time that the United States government was able to end a fiscal year without accruing more debt was in 1960. This means that due to excessive spending and compounding interest accrued, the United States' national debt has escalated astronomically over the past several decades. The table shown below lists the recorded U.S. national debt amounts, written in standard form, for each decade, from 1960 to the year 2010.
Year U.S. national debt (in U.S. dollars)
1960 $286,330,760,848.37
1970 $370,918,706,949.93
1980 $907,701,000,000.00
1990 $3,233,313,451,777.25
2000 $5,674,178,209,886.86
2010 $13,561,623,030,891.79
For each decade, convert the U.S. national debt amount to a number in scientific notation, rounded to the nearest hundred millions dollars. Enter in numerical answers only.
Year U.S. national debt (in U.S. dollars)
written in standard form U.S. national debt (in U.S. dollars)
written in scientific notation
1960 $286,330,760,848.37 $2.863 ∙ 10
1970 $370,918,706,949.93 $3.709 ∙ 10
1980 $907,701,000,000.00 $9.077 ∙ 10
1990 $3,233,313,451,777.25 $3.2333 ∙ 10
2000 $5,674,178,209,886.86 $5.6742 ∙ 10
2010 $13,561,623,030,891.79 $1.35616 ∙ 10
Answer:
Given the US National Debt,
1960 $286,330,760,848.37
1970 $370,918,706,949.93
1980 $907,701,000,000.00
1990 $3,233,313,451,777.25
2000 $5,674,178,209,886.86
2010 $13,561,623,030,891.79
Then, rounding off these numbers to nearest hundred million,
1960 $286,000,000,000.00
1970 $370,900,000,000.00
1980 $907,700,000,000.00
1990 $3,233,300,000,000.00
2000 $5,674,200,000,000.00
2010 $13,561,600,000,000.00
While representing a number in scientific notation, it is written as a number between 1 and 10 and then multiplied by a power of 10.
The debt amount becomes,
1960 $2.86×10¹¹
1970 $3.709×10¹¹
1980 $9.077×10¹¹
1990 $3.2333×10¹²
2000 $5.6742×10¹²
2010 $1.35616×10¹³
Explanation:
Given the US National Debt,
1960 $286,330,760,848.37
1970 $370,918,706,949.93
1980 $907,701,000,000.00
1990 $3,233,313,451,777.25
2000 $5,674,178,209,886.86
2010 $13,561,623,030,891.79
Then, rounding off these numbers to nearest hundred million,
1960 $286,000,000,000.00
1970 $370,900,000,000.00
1980 $907,700,000,000.00
1990 $3,233,300,000,000.00
2000 $5,674,200,000,000.00
2010 $13,561,600,000,000.00
While representing a number in scientific notation, it is written as a number between 1 and 10 and then multiplied by a power of 10.
The debt amount becomes,
1960 $2.86×10¹¹
1970 $3.709×10¹¹
1980 $9.077×10¹¹
1990 $3.2333×10¹²
2000 $5.6742×10¹²
2010 $1.35616×10¹³
Explanation:
What antibodies are present if a person
has B+ blood?
Answer:
B antigens with anti-A antibodies
Explanation:
A blood type classifies blood, based on the presence and absence of antibodies and antigens present on the surface of red blood cells.
Group B+ blood has B antigens and anti-A antibodies. Group A+ blood has A antigens and anti-B antibodies.
Where does the H+ come from that makes ATP synthase work?
Answer:
Electron Transport Chain
Explanation:
Gizmos Cell Respiration
The H+ that's vital in making ATP synthase work comes from the electron transport chain.
The electron transport chain can be found in the mitochondria. It is a series of protein complexes that are able to transfer electrons from the electron donors to the electron acceptors.
It should be noted that the transfer of the electrons from the electron donors to the electron acceptors is done through the redox reactions. This is illustrated in the H+ that made the ATP synthase work.
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Choose the answer that is not a fossil.
a. a cow skeleton in the desert
b. dinosaur footprints preserved in mud turned to rock
c. a petrified T-Rex is found in Montana
d. a 400-million-year-old fish preserved in rock
What is the difference between Primary and Secondary Succession?
Answer:
Some differences between primary and secondary succession are:
-Secondary succession happens on a previously existing community that has been cleared.
Another difference would be:
-Pioneer species for secondary succession are adapted differently- they grow quickly, can disperse quickly and have a short life span
And finally:
-Primary succession develops a new community from scratch
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why is it important to understand the breakdown of water into its ions before learning about acidity
Which of the following substances increases in amount during the cellular respiration of glucose?
Select one:
a. O2
b. NADH
c. ADP
d. Glucose
SOMEONE SMART HELP MEP PLS!!!!!! Write a word equation - The reactants are sodium bicarbonate and calcium chloride. The products are sodium chloride, calcium carbonate, carbon dioxide, and water.
Answer:
answer below
Explanation:
sodium bicarbonate and calcium chloride react to form sodium chloride, calcium carbonate, carbon dioxide, and water.
How do limiting factors determine the carrying capacity of an ecosystem ?
Answer:
Limiting factors determine carrying capacity. The availability of abiotic factors (such as water, oxygen, and space) and biotic factors (such as food) dictates how many organisms can live in an ecosystem. Carrying capacity is also impacted by the availability of decomposers.
Explanation:
Carrying capacity is determined by limiting variables. Limiting factors can be divided into two categories: those that depend on the density and those that don't.
What are the limiting factors?Limiting factors can be divided into two categories: those that depend on the density and those that don't. These names are accurate in their meanings.
No matter how big or little, expanding or contracting, the population is affected by density-independent causes. For instance, regardless of the density of any one population, a wildfire that burns through a dense forest in the Everglades has a significant effect on every population in the area.
The majority of density-independent limiting variables fall into the abiotic (nonliving) group, which includes wildfire. Hurricanes, pollution, and seasonal climate extremes are other density-independent variables.
Therefore, Carrying capacity is determined by limiting variables. Limiting factors can be divided into two categories: those that depend on the density and those that don't.
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Which organelle would you expect to find in plant cells but not in animal cells? Group of answer choices Lysosomes chloroplasts Rough E.R Ribosomes
The organelle that would you expect to find in plant cells but not in animal cells is chloroplasts, second option is correct.
What is chloroplast and its function?Through the processes of photosynthesis and oxygen release, chloroplasts provide energy that supports plant growth and crop yield. As a result, active substances such amino acids, phytohormones, nucleotides, secondary metabolites are produced by chloroplasts.
Organelles found in plant cells called chloroplasts use the photosynthetic process to change light energy into relatively stable chemical energy. They maintain life on Earth in this way. For plant cells, chloroplasts also perform a variety of metabolic processes, such as the creation of fatty acids, membrane lipids,
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Which component of nerve cells contains the nucleus? (1 point)
dendrite
axon
neuron
cell body
The nucleus is present in the cell body.
Nerve cell:Nerve cell is a basic unit of communication. Each nerve cell contains axon, cell body, dendrites and terminal branches. There are about 85 to 200 billion neurons present.
Neurons are surrounded by a cell membrane.Neurons have a nucleus that contains a gene.It also have cytoplasm, mitochondria and other cell organelle.Neurons are of different types:
Unipolar neuronBipolar neuronMultipolar neuronNeurons are the chemical messenger. They contain nucleus which contain genetic material. Mitochondria produces energy. Neurons contain specialized structures and chemicals. They contain some specialized structures (synapse) and chemicals called neurotransmitter.
Therefore, The nucleus is present in the cell body.
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Name 3 things that come from decayed plants, are fossil fuels, and release carbon dioxide when they are burned.
Answer:
Carbon cycle, neutral and decomposition
A mutation is _______. a). a mistake in the production of DNA, b). an error in the genetic code, c) a mistake that may cause a genetic disease, d) all of the above
Answer:
d)all of the above..........
__ used to help substances enter or exit the cell membrane
Answer:
Transport Protein
Explanation:
This is used to help substances enter or exit the cell membrane.
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Question: A marine biologist is testing the hypothesis that cold water promotes the growth of corals. Which of the following study designs may yield the most conclusive results?
A.) Two study sites with stable differing water temperatures, similar water nutrient profiles, and similar coral communities growing at different depths
B.) Two study sites with fluctuating water temperatures, similar coral communities growing at similar depths, with similar water nutrient profiles
C.) Two study sites with the same temperature profile, different coral communities growing at different depths, with different water nutrient profiles
D.) Two study sites with stable differing water temperatures, similar coral communities growing at similar depths, with similar water nutrient profiles
The statement that reveals the best study designs and may yield the most conclusive results is as follows:
Two study sites with stable differing water temperatures, similar water nutrient profiles, and similar coral communities growing at different depths.Thus, the correct option for this question is A.
What is Hypothesis?In experimental biology, the hypothesis may be defined as a testable statement about the relationship between two or more variables or a proposed explanation for some observed phenomenon. It is basically an assumption that is made based on some evidence.
According to the context of this question, the hypothesis that best demonstrates the most conclusive results for the above experiment is the stable differing water temperatures, similar water nutrient profiles, and similar coral communities growing at different depths. This is because the depths of the coral may vary with respect to the nutrients available in an aquatic ecosystem.
Therefore, the correct option for this question is A.
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What is the Scientific Method and what are the steps?
Answer:
The basic steps of the scientific method are: 1) make an observation that describes a problem, 2) create a hypothesis, 3) test the hypothesis, and 4) draw conclusions and refine the hypothesis.
Explanation:
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Answer:
The basic steps of the scientific method are:
1) make an observation that describes a problem,
2) create a hypothesis,
3) test the hypothesis, and
4) draw conclusions and refine the hypothesis.
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