Why is biomass at the second trophic level in most ecosystems not as great as biomass at the first trophic
level?

Answers

Answer 1
only about ten per cent of the biomass is transferred from each trophic level to the next. The remaining 90 per cent is used by the trophic level to complete life processes . Biomass can be lost between stages because not all of the matter eaten by an organism is digested.

Related Questions

If a race car's velocity is increasing rapidly, we
would notice
its velocity-time graph.
on
A a steep positive slope
B a shallow positive slope
C a shallow negative slope
Da steep negative slope

Answers

A. A steep positive slope. Since the speed is going UP, it is positive. Since it is happening quickly, the line will jump steeper. Hope that helps!

If a race car's velocity is increasing rapidly, we would notice its velocity-time graph on a steep positive slope, therefore the correct answer is option A.

What is Velocity?

The total displacement covered by any object per unit of time is known as velocity.

acceleration = slope of the velocity time graph

As per the given problem statement If a race car's velocity is increasing rapidly, we would notice its velocity-time graph on a steep positive slope because the rapidly increasing speed represents.

To determine the object's acceleration, utilize the positive acceleration and the slope of the velocity time graph.

Thus, the correct answer is option A.

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Match the Macromolecule with its corresponding monomer. Carbohydrate Lipid Il Protein Nucleic Acid :: Glucose :: Fatty Acid :: Amino Acid :: Nucleotide​

Answers

Answer:

carbohydrate-gluclose

lipid-fatty acid

protien-amino acid

nucleic acid-nucleotides

Explanation:

I just took a biology class this year:)

The correct match of macromolecules with their corresponding monomer is:

Carbohydrate :: GlucoseLipid :: Fatty AcidProtein :: Amino AcidNucleic Acid :: Nucleotide

WHAT ARE MACROMOLECULES:

Macromolecules are large organic compounds also called biomolecules. They are polymeric compounds made up of monomeric units. The four major macromolecules are as follows: proteins, lipids, carbohydrates and nucleic acids.

Proteins: Proteins are macromolecules made up of monomers called AMINO ACIDS.

Carbohydrates: Carbohydrates are macromolecules made up of monomers called GLUCOSE, which is a monosaccharide.

Lipids: Lipids are macromolecules made up of monomers called FATTY ACIDS.

Nucleic acids: Nucleic acids are made up of monomers called NUCLEOTIDES.

Hence, in a nutshell, the correct match of macromolecules with their corresponding monomer is:

Carbohydrate :: GlucoseLipid :: Fatty AcidProtein :: Amino AcidNucleic Acid :: Nucleotide

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Spiders use their silk to build strong webs, to trap bugs, to save themselves from falling, to wrap their eggs safely, and even to glide through the air. How can one material—spider silk—be used for so many different ___________?

Answers

Answer:

The missing word is things.

However, the real question is how one material can serve so many purposes? That is what makes it possible for the spiders web to have a high "utility" value?

The answer is in how the spiders make the silk.

Explanation:

So it interesting to note that spiders do not make only one kind of silk. They vary depending on what purpose it's doing serve.

The most common type is Dragline Silk.

Dragline Silk: This contains spidroins. Spidroins fall under a category of a protein called scleroproteins. Because of its composition, a strand or fiber of Dragline has the same tensile strength as steel albeit more flexible. That is if one produced steel the diameter of a spider's silk, and compared both for strength, the silk will be stronger.

The spider produces Dragline silk in its silk glands where they are as viscous as a paste. From here is pulled out or extruded into lines of silk.

Other types of spider silk are:  

Capture-spiral silk. Also known as the Flagelliform, they are used for securing lines of the web. They are adhesive, very elastic, and possess high tensile strength.  Tubiliform silk: They are also called Cylindriform. Its main use is for the protection of spider eggs. It is used to make a sac for which protects eggs. This type of silk is the toughest. Aciniform silk: For preserving fresh prey.   Minor-ampullate silk: This type is used by spiders for creating temporary support while they are spinning a web. Etc.

Cheers

I need to know everything about reproduction and variation for a test. YEAR 9

Answers

You could’ve attached a question or a picture or something
If you go to physicsandmathstutor.com they have an amazing section with detailed notes which are also concise and to the point.

(3) (b) The mean concentration of red blood cells in an adult is 5.5 × 106 cells per mm3 1 mm3 = 0.000001 dm3 Calculate the mean number of red blood cells in 1 dm3 Give your answer in standard form.

Answers

Answer:

The correct answer is - 5.5*10^12 cells per dm^3

Explanation:

Given:

The mean concentration of red blood cells in an adult = 5.5 × 10^6

or = 5500 000

1 mm3 = 0.000001 dm^3

Solution:

Then, 1  dm^3 = 1000000 mm^3

(55000000 × 1000000) = 5500,000,000,000

= 5.5 × 10^12

8. Which of the following is true about the rate
of evolution?
A. Evolution can occur over a weekend
B. Evolution occurs in several months
C Evolution occurs over hundreds of years
D. Evolution occurs over millions of years

Answers

I’m pretty sure it’s c but I’d pick d

2. Isabel went in her friend's garden. This garden was full of flowering plants. She
enjoyed looking at them. She wonders why rose and bougainvillea plants were not
planted inside the fence. What structures protect them from predators?
A. their leaves are poisonous
B. they have unpleasant smell
C. they have sharp leaf blades
D. their stems have thorns that protect them

Answers

Answer:

Option D is the correct answer

Their stems have thorns and protect them

anyone good at biology need really help on this will be marked brainliest ​

Answers

Answer:

400X (10 x 40 = 400).

Explanation:

:)

Answer:

Should be 400x

Explanation:

Just take the power of the objective (40x) and multiply by the power of the eyepiece, usually 10X.

what is light please tell me​

Answers

light is a form of energy which gives us the sensation of vision.

hope

this

helps

Answer:

light is light i think or its probably chicken

Explanation:

as you adjust the independent variable in an experiment, which variable do you measure ?

Answers

Answer:

he dependent variable (height) depends on the independent variable (age).

Explanation:

An easy way to think of independent and dependent variables is, when you're conducting an experiment, the independent variable is what you change, and the dependent variable is what changes because of that

Mitosis maintains complex organisms by which of the following processes?
A) the removal of waste from the body
B) the exchange of gas with the environment
C) the formation of sperm and egg
D) the healing of a cut after an injury

Answers

Answer:

In multicellular organisms, individual cells grow and then divide via a process called mitosis, thereby allowing the organism to grow. ... Cellular division and differentiation produce and maintain a complex organism, composed of systems of tissues and organs that work together to meet the needs of the whole organism.

Explanation:

C. The formation of sperm and egg.

this is the breed of rY and ry

Answers

Answer:

Wrinkled Yellow

rr = wrinkled

Yy = yellow

good luck, hope this helps :)

Answer: wrinkled yellow

Explanation:

The genotype for wrinkled is rr so it can only be shown when both alleles are recessive. Yellow is a dominant trait so it’s alleles would have to be Y_. The genotype of item four is rrYy, which is wrinkled and yellow

Rapid reproduction is an advantage of which process? gamete formation sexual reproduction asexual reproduction chromosome duplication

Answers

Answer:

Rapid reproduction occurs in mitosis,

Asexual reproduction where the chromosomes are duplicated.

Explanation:

Asexual reproduction usually occurs in about 2 hours.  This facilitates a more rapid response to repair damage and grow other similar/duplicate cells like skin and red blood cells.

Sexual reproduction is meosis, and takes more steps, more complex and takes longer.  Provides for diversity in genetics etc.  Multiple error checking during the process

Rapid reproduction is an advantage for Asexual reproduction as in this type of reproduction, the organism undergoes reproduction to produce offsprings within a small time thus requires rapid reproduction. Thus, the correct option is C.

What is Asexual Reproduction?

Asexual reproduction is a type of reproduction which does not require gamete formation. In this process, a single parent cell divides to form two or more daughter cells by the division through mitosis.

Bacteria such as E.coli undergoes reproduction to form new generation of offsprings within a few minutes and thus this reproduction requires rapid division of the DNA to form daughter cells and thus rapid reproduction is an advantage of asexual reproduction.

Therefore, the correct option is C.

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Which fossil fuel puts the least amount of sulphur dioxide into the atmosphere?
a
Petroleum
b
Linoleum
C
Coal
d
Natural Gas

Answers

Answer:

b.Linoleum

Explanation:

hope that helps

What would you tell the patient? ​

Answers

The answer is D I believe because their cancer is no longer spreading
D. For these type of questions always copy them an try an look on quizlet !

In photosynthesis, chlorophyll traps _____.

Answers

Answer:

In photosynthesis, chlorophyll absorbs energy to transform carbon dioxide and water into carbohydrates and oxygen. Chlorophyll is a molecule that traps light. Good luck :)

Explanation:

When will an atom give up electrons?
When more than half of the outer energy level is filled
When the n=2 level is full
When less than half of the outer energy level is filled
When the outer energy level is full

Answers

Atoms give up electrons when less than half of the outer energy level is filled, forming positively charged ions. Noble gases with a full outer shell do not easily give up or accept electrons.

An atom will give up electrons when less than half of the outer energy level is filled. In chemistry, valence electrons are electrons in the outermost shell or energy level of an atom. Atoms tend to gain or lose electrons when the valence electron shells are not filled. When atoms lose their valence electrons, they become positively charged ions. An ion is a positively or negatively charged atom or group of atoms. For instance, sodium atoms give away one electron to form sodium ions with a positive charge because the outermost shell of sodium has only one electron, which is less than half the number needed to fill the shell entirely. When more than half of the outer energy level is filled, atoms are reluctant to give up their valence electrons, which is why noble gases do not form chemical bonds easily. When the outermost shell of an atom is full, it is stable, which is why noble gases do not give up or accept electrons quickly. Therefore, an atom will give up electrons when less than half of the outer energy level is filled.

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If half of the sons are colorblind, what is the genotype of the mothe?

Answers

Answer:

not colorblind

Explanation:

hope it helps

the mother is not colorblind since half of their sons are

place the levels of an ecosystem in the correct order from smallest to largest

Answers

Answer:

this is largest to smallest just do the opposite of this

biosphere, biome, ecosystem, community, population, and organism.

Explanation:

Which statement correctly identifies structures 1 and 2
in the diagram?

A. Structure 1 is an unstable atom that turns into
structure 2, a new atom.

B. Structure 1 is a stable element that breaks down into structure 2, an unstable element.

C. Structure 1 is a radioactive element that loses particles to create structure 2, released energy.

D. Structure 1 is a radioactive atom that decays into
structure 2, half of the original unstable element.

Answers

Answer:

A

Explanation:

Took the test :)

Answer: a.

Explanation:

how sclerenchyma tissues are important for plant though they are dead tissue ?​

Answers

Answer:

Hey friend !!!

The cells of sclerencyma are without nucleus and protoplast....they are dead cells..

They provide mechanical support to organs of the plant body....

Hence they are important for plants....

Answer:

Sclerenchyma tissues are tissues that makes up parts of the plants that are hard. Like the nuts and covering seeds etc, These tissues have a hard thickness providing agent called lignin and lignin makes the cell wall too hard the sometimes the cell contains nothing. This cell mainly provides mechanical support to the plant

A city has experienced an increase in vehicle traffic in the last few years. During this time, the city has also recorded an increase in air pollution.

Which solution should the city choose to best reduce air pollution in the coming years?
A.
Monitor the levels of air pollution during rush hour each day.
B.
Provide more public facilities for the disposal of motor oil used in vehicles.
C.
Encourage using public transportation rather than driving individual cars.
D.
Prohibit all use of motor vehicles on all roads in the city.

Answers

[tex] \huge \purple{\tt{Answer:}} [/tex]

C. Encourage using public transportation rather than driving individual cars.

Which choice best descibes the cell cycle?

A: Cells grow and devolp during interphase. Cells reproduce during the mitotic phase.

B: Cells grow and devolp during the mitotic phase. Cells reproduce during the interphase.

C: The nucleus of the cell divides during interphase. The cytoplasm divides during the mitotic phase.

D: The nucleus of the cell divides during the mitotic phase. The cytoplasm divides during the interphase.

Answers

Answer:

i think its a im mot sure thi

Organisms of a single species that share the same geographic location at the same time make up a _____________

Answers

Answer:

population

Explanation:

°ω° please help, giving brainliest °ω°

Answers

I think it’s A, because da big fluff needed to be warm :))

Answer:

D.) Environment was hot and dry.

Explanation:

The question says "found in texas"

Texas is not:

coldwarm and wetflooded

PLZ ANSWER!!! I NEED HELP LIKE ASAP!!!

Answers

Answer:

I believe the answer is B

Explanation:

The answer is C hope this helps

how many half-lives occur in 4 hours?
A. 1
B. 2
C. 3
D. 4

Answers

I believe the answer is C

When an organism excretes waste, can a plant directly use it as fertilizer (nitrogen source)? Why or why not?

Answers

Yes

Because the organism waste contains UREA and urea is rich in nitrogen and it can be used as fertilizer for plants. Bc plants need nitrogen.

When a life form excretes waste, plants can use it directly as fertilizer. As a result, it's correct.

What is a fertilizer?

A fertilizer is any natural or synthetic material that is applied to soil or plant tissues to provide plant nutrients.

Fertilizers can be distinguished from liming materials or other non-nutritional soil amendments. There are numerous fertilizer sources, both natural and man-made.

It should be noted that nitrogen is a critical macronutrient required by many organisms, including plants. It is critical to their development.

Waste from organisms is permitted on plants, and this is necessary for their growth. As a result, when an organism excretes waste, the nitrogen content of the waste can be found in the waste and used as fertilizer for the plant.

Thus, the given statement is true.

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What happens to the other strand of the DNA molecule while the coding strand is making RNA?

Answers

Answer:

he other strand, the coding strand, is identical to the RNA transcript in sequence, except that it has uracil (U) bases in place of thymine (T) bases. ... If the gene that's transcribed encodes a protein (which many genes do), the RNA molecule will be read to make a protein in a process called translation.

Explanation:

Answer: Transcription is the first step of gene expression. During this process, the DNA sequence of a gene is copied into RNA. ... The other strand, the coding strand, is identical to the RNA transcript in sequence, except that it has uracil (U) bases in place of thymine (T) bases.

Hope this helps (:

Give me an example of each by editing this DNA Below:
GAA TAC CGG TAG CGA

Answers

Answer:

could you specify your answer please

Explanation:

DNA: GAA TAC CGG TAG CGA
RNA: CTT AUG GCC AUG GCU
AA: leu. Met. Ala. Met. Ala
I hope this help
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