What should an
ecologist measure in order to construct a pyramid of biomass for an ecosystem?

A. the biomass in
each trophic level of the food web

B.
the total mass of all the organisms in a representative area of the ecosystem

C. the total mass of all the organisms in the ecosystem

D. the number of organisms in each trophic level of the food web

Answers

Answer 1

Answer:

A

Explanation:

This overcomes the size difference problem because all kinds of organisms at a trophic level are weighed.


Related Questions

number of times Jesus healed people who were possessed

Answers

Answer:

37 times Jesus has healed people!

Explanation:

The example of birds having different shaped beaks illustrates all of the following EXCEPT...
a) A species can adapt in order to vary its diet.
b) Similar species can inhabit the same environment.
c) Animals on land are very different from those in the sea.
d) Adaptation allows species to compete in the same ecosystem.

Answers

Answer:

C

Explanation:

Animals can adapt even if they are from the sea. The rest of the answers are true facts.

How do bacterial species build antibiotic resistance?

Answers

Explanation:

So when u take antibiotics you kill lots of the bacteria. however you don't kill all of them. the bacteria that is left over hasn't been killed because they are resistant to the antibiotics taken. if left these bacteria will reproduce and build and species resistant to that type of antibiotics which can be incredibly dangerous. this is why it is necessary to finish your full antibiotics course so even if u feel better just to make sure you kill all the bacteria.

WILL GIVE BRAINLIEST
The illustration shows an ocean food chain and the concentrations of the toxin DDT at each trophic level. What conclusions can be made as to how DDT impacts this food chain? Include where the concentration of DDT is likely to be lowest, and where it is likely to be highest

Answers

DDT increases as it moves up a food chain.

Explain how?

DDT increases or biomagnifies if we look at a food chain. DDT is fat-soluble, which means animals store it in fatty tissues. It also takes a relatively long amount of time to break down.

Thus, if a predator consumes multiple organisms and each organism has a small amount of DDT, the amount of DDT in the predator is going to be the result of all of those small amounts combined.

To learn more about DDT click here:

https://brainly.com/question/27536734

#SPJ1

Alleles practice: Am i right? though it says this is possible

Answers

Answer:

Yes I'm pretty sure it's right

Explanation:

It looks right I looked over it and it looks good

Explain why leaving a generous tip at a restaurant one never plans on returning to is considered an altruistic act.

Answers

Leaving a generous tip at a restaurant one never plans on returning to is considered an altruistic act because : Its not for a selfish gain or to buy favor but instead, you are helping the restaurant workers at your own cost.

Meaning of Altruistic act

An altruistic act can be defined as any act of kindness that is displayed by an individual at his own cost or detriment.

An altruistic act can also be said to be an act done for the greater good of others at the expense of oneself or comfort.

In conclusion, Leaving a generous tip at a restaurant one never plans on returning to is considered an altruistic act because : Its not for a selfish gain or to buy favor but instead, you are helping the restaurant workers at your own cost.

Learn more about altruistic act: https://brainly.com/question/15338492

#SPJ1

Answer:

Altruism occurs when an individual gives to another out of concern or thought of one's well-being. If an individual has no expectation of returning to a restaurant then leaving a generous tip is considered altruistic because there is no expectation of a reward from the server. If the customer does not return, the server is unable to exchange the gift or tip for good service. Therefore, the customer who tips is giving out of care or concern for the well-being of the server rather than giving with the intention of receiving an external reward.

Please modify the sentence below to make it a TRUE statement.

Strip mining is less harmful to the environment than shaft mining, but more dangerous to miners.

Answers

Strip mining is more harmful to the environment than shaft mining, but less safe to miners.

What are the environmental impacts of mining?

The main impacts of mining are:

environmental water turbidity and increased water pH quality, change in size can be more acidic), soil and water flow with metals, quality to be provided in economic environments.

So in this case, Strip mining is more harmful to the environment than shaft mining, but less safe to miners.

See more about mining at brainly.com/question/14277327

#SPJ1

Explain the difference between active and latent viruses.

Answers

Answer:Both are viruses that are going to invade and reproduce in a host cell. The difference is that an active virus immediately takes over the cell and a hidden virus stays “hidden” and waits a while to take over.

Explanation:


What creates an electric current in
a battery?

Answers

Answer: ELECTRONS JUMPING dont forget to leave a review and a thanks

Explanation:Electrons jumping

Which planet has a temperature range of 400C to -200C?

Answers

Answer:

Mercury and Venus

Explanation:

2. Inputs to a closed system may be
A. matter only
C. matter and energy
B. energy only D. heat only

Answers

Answer:

B

Explanation:

Why is knowing agricultural statistics, background information, and soil characteristics about the territory in which your farm is located important?

Answers

Knowing the agricultural statistics of where your farm is located is important because it can help a farmer to identify the efficiencies that will lead to more productivity and profitability, less input costs, and optimized fertilizer use. The background information is important to farmers because it helps a farmer know whether or not the ground is good for growing crops, if something had happened to the land before their use. Soil characteristics are important to farmers because fertile soil is important for crop growth. The soil needs to be able to allow water and air to infiltrate, roots to be able to move more, and for biota to be able to thrive.

17) Determine the expected phenotypic ratio of offspring from a cross between a striped watermelon
with thick skin and a light green watermelon with thick skin
• Striped watermelons result from a cross between a light green watermelon and a dark green
watermelon

Thick skins are dominant to thin-skins
[5]
Parents:

Answers

The expected phenotypic ratio of offspring from a cross between a striped watermelon with thick skin is 1/2 thick skin and 1/2 striped watermelon.

What is dominance?

In genetics, dominance refers to the expression of a given allele or gene variant in heterozygous individuals.

In dominance, this dominant allele masks the expression of the recessive allele for a given gene locus.

In conclusion, the expected phenotypic ratio of offspring from a cross between a striped watermelon with thick skin is 1/2 thick skin and 1/2 striped watermelon.

Learn more about dominance here:

https://brainly.com/question/810479

#SPJ1

Before complex development of a fetus can begin, implantation into the uterine wall must occur. What gets implanted in the uterine wall?

Answers

Answer:

Embryo

Explanation:

A egg cell is fertilised to form a zygote which is diploid(contains two sets of chromosomes) and then it divides again and again into a ball of cells by mitosis and then it is implanted

Something from my biology a few years ago, HOPE IT HELPS Implantation is defined as the process by which the embryo attaches to the endometrial surface of the uterus and invades the epithelium and then the maternal circulation to form the placenta. Before the initiation of implantation, however, both embryo and endometrium should embark on an elaborated process in a time- and location-specific manner. The crosstalk between a receptive uterus and a competent blastocyst can only occur during a limited time span, known as the “window of implantation” (Psychoyos, 1986; Ma et al., 2003). The window of endometrial receptivity is restricted to days 16-22 of a 28-day normal menstrual cycle, 5-10 days after the luteinizing hormone (LH) surge (Navot et al., 1991). The uterus then continues into the non- receptive period for the remaining cycle as the late luteal

phase until menstruation ensues. It is not surprising that early pregnancy loss, which occurs during the peri-implantation period before pregnancy is confirmed clinically, is common in humans (Norwitz et al., 2001). The risk of spontaneous abortion significantly increases with implantation beyond this window (Wilcox et al., 1999). The synchronized molecular dialogue mediated by cytokines, a variety of growth factors, prostaglandins, matrix degrading enzymes and their inhibitors, and adhesion molecules is required for successful implantation. Infertility, the inability to conceive within a year of unprotected intercourse, affects one in seven reproductive-aged couples in Korea (Kim et al., 2014). It is necessary to investigate the hierarchical pathways that orchestrate the implantation process to develop solutions for implantation failure and to raise fertility rates in women.

Describe the relationship between a thermal inversion and pollution.

Answers

Answer:

With a stronger inversion (greater thermal difference between inversion and mixing layers), less pollution can disperse into higher atmospheric levels. Likewise, the longer an inversion lasts, the more pollution will build up, and the worse the air quality in the mixing layer will be

Explanation:

Why did no one believe Wegner’s Theory of Continental Drift or Plate Tectonic Theory?

Answers

Answer:

Experts firmly believed in another theory (that the continents and oceans were fixed in position), and Wegener did not provide a strong evidence which would enable continents to move in the manner he claimed.

Which organs are important parts of the immune system?.

Answers

Answer:

Organs and tissues important to the proper functioning of the immune system include the thymus and bone marrow, lymph nodes and vessels, spleen, and skin

What role do humans play in the loss of species and ecosystem services?


Answers

Answer:

Just as humans can have a stabilizing effect on their ecosystems, they can also play a destructive role.Explanation:

Why do large-scale convection currents occur in the atmosphere?

Answers

Explanation:

Convection drives the circulation of air in the earth's atmosphere. The sun heats the air near the earth's equator, which becomes less dense and rises upward. As it rises, it cools and becomes less dense than the air around it, spreading out and descending toward the equator again.

why osmosis is special case of diffusion?​

Answers

Answer:

Diffusion can be called as osmosis in some cases because if the substance is liquid and passes through a semi-permiable membrane then its osmosis.
WELCOME!

Answer:

Osmosis is a special kind of diffusion because in both cases there is a movement of particles from a higher concentration region to a lower concentration region. The only difference is that osmosis is applicable to the movement of the solvent only through the semi-permeable membrane where the solvent is water.

Explanation:

similarities between earth and Jupiter​

Answers

Answer:

they are both circle. They are the part of solar system.

Which of the following choices is an example of agricultural biotechnology?
A) Farmers use radar to predict storms.
B) Farmers cross-breed two species of cows to create a new breed that produces more milk, but requires less food.
C) Farmers rotate crops to keep soil nutrient-rich.
D) Farmers replant an orchard every 20 years to keep trees strong and productive.

Answers

B - cross breeding cows

Biotechnology utilizes biological systems, living organisms or parts of this to develop or create different products

Answer:

B)

Explanation:

genetically modifying livestock in a sustainable manner as higher yields are produced and less feed is used.

Planet A has a tilt a of five degrees. What seasonal changes would be expected on this planet?
Extreme temperature changes between seasons
Little to no change in temperatures between seasons
Seasonal changes along the equator only
Seasonal changes at the poles only

Answers

Answer:

B. Little to no change in temperatures between seasons.

Assuming planet A is the earth, the earth is very slightly rotated on its axis toward the sun and Jupiter, so there would not be a dramatic change if we tilted the earth 5 degrees.

pls help. Which is the example of long bone?

Answers

Answer:

it's either c or d but I'm not sure

Explanation:

n this experiment, you need to examine the idea of thermal energy transfer. Using a controlled experiment, what might a good question about the variables that affect thermal energy transfer be? Thermal energy transfer depends on many properties, but limit your question to only two.

Answers

The thermal conductivity and temperature difference between the surrounding plays a crucial role in the transfer of thermal energy between the materials.

What are the three modes of thermal energy transfer?

The three modes of thermal energy transfer include conduction (direct contact of atoms), convection (migration of warm particles), and radiation (migration of electromagnetic waves).

The first property is thermal conductivity. Examples include a cube of ice when positioned in the hand of a man. It causes the ice to melt via the thermal conduction from men's hands.

The second property is the temperature difference. Examples include when a hot cup of tea mingled with a cold glass of water. It changes the temperature to a new value which is different from the exact temperature of both initial fluids.

Therefore, it is well described above.

To learn more about Thermal energy transfer, refer to the link:

https://brainly.com/question/7541718

#SPJ1

Describe a selected aspect of present and past climate and the associated physical parameters (eg, temperature, precipitation, sea level) or chemical composition (e.g. ocean pH) of the atmosphere geosphere, hydrosphere or cryosphere, related to the severe weather phenomena you chose. Include changes over time.​

Answers

Tsunami impacts are expected to be intensified due to climate change related sea level rise.

Tsunami and the sea level

Sea ​​level rise can significantly amplify the risk of tsunamis, which means that small tsunamis in the future could have the same adverse impacts as large tsunamis today.A modest 0.5 meter rise in sea level will double the risk of tsunamis in Macau.

With this information, we can conclude that tsunami impacts are expected to be intensified due to climate change related sea level rise.

Learn more about tsunami in brainly.com/question/14782736

#SPJ1

Which organisms are prokaryotes?
archaea
fungi
protists
plants

Answers

Archaea are prokaryotes.

What are prokaryotes?

The simplest form of life on our planet is made up of single celled organisms called prokaryotes that lack any nucleus or membrane bound organelles. Despite their basic structure compared to eukaryotic cells they have extreme significance for our environment as they constitute the majority of life forms on Earth.

Prokaryotes can be broadly divided into two groups: bacteria and archaea. Bacteria outnumbers all other types present globally and flourish across all possible conditions - both regular and adverse including tough terrains like hot springs or acidic lakes; however archaic forms can survive even some brutal conditions such as deep sea zones or within rocks.

Learn about prokaryotes here https://brainly.com/question/1288013

#SPJ1

26. A student reads this advertisement for a product containing a plant


micronutrient that can be added to soil.


Miracle Micro-B Makes Your Garden Grow!


Miracle Micro-B contains


2. 0 g of boron, a


micronutrient that is


vital to reproduction in


plants. We recommend


continuous application


of Miracle Micro-B to


your garden plants or


crops.


Based on this information, the student can conclude that boron is absorbed


by plant roots from soil and then


A. Transported to reproductive tissues by the plant's shoot system


B. Stored in plant stems until the flowers are pollinated


C. Concentrated in the roots until the plant's reproductive tissues mature


D. Transported by the phloem to the stomata in leaves, where it


attracts pollinators


Lo

Answers

Based on this data, the student can conclude that boron is absorbed and transported to reproductive tissues by the plant’s shoot system.

Whta is the plant shoot system?

The plant shoot system refers to the organ system that absorbs nutrients (micronutrients) from other parts than the soil.

The plant shoot system is a fundamental organ system for the normal functioning of plants.

In conclusion, based on this information, the student can conclude that boron is absorbed and transported to reproductive tissues by the plant’s shoot system.

Learn more about the plant shoot system here:

https://brainly.com/question/20264965

#SPJ1

Where does most of the power in homes come from?

Answers

Answer: Natural Gas

Explanation:

Electricity and natural gas are the most-used energy sources in homes. Electricity is used in almost all homes, and retail electricity purchases accounted for 43% of total residential sector end-use energy consumption.

Do humans share a common ancestor with yeast? How do you know?
HELP PLSSSSSSSSSS

Answers

Yeast possesses 23% homologous genes to humans; therefore, it is considered as a useful model for gene function studies. Although yeast and human diverged from a common ancestor approximately 1 billion years ago, lines of evidence demonstrate the strong conservation of gene function between yeast and humans
Other Questions
Please select the word from the list that best fits the definition may indicate governmental territories Describe the difference between topoisomerase I and topoisomerase II A person with a(n) _____ case of tuberculosis (TB) will test positive for the bacteria but will not show signs of the illness and cannot communicate the disease to others. How many 1/4-inch segments are in a length of 31/2 inches? At equilibrium, the total amount of the product(s)a.is always equal to the total amount of the reactants.b. is always greater than the total amount of the reactants.c.is always less than the total amount of the reactants.d. may be equal to, greater than, or less than the total amount of the reactants. Find the measures of angles Q and S. Number 7! explain how the fossil record provides evidence for the idea of natural selection Each figure below is part of a capital letter in the English alphabet. To find the wholeletter, combine the figure with its image for the appropriate rotation or reflection. What letter corresponds to each figure? What transformation produces each letter? The numbers 2 , 3 , 5 and x have an average equal to 4. What is x? Find the value of a circle with the radius 4 ft use 3.14 for and do not round For a one-week period, three bus routes were observed. The results are shown in the table below.On-Time Delayed TotalBus Route A 28 7 35Bus Route B 37 8 45Bus Route C 24 6 30Total 89 21 110A bus is selected randomly. Which event has the highest probability?A. The bus is from route B and is delayed.B. The bus is from route A and is on time.C. The bus is from route C and is on time.D. The bus is from route C and is delayed. A copy machine makes 28 copier per minute how many copies does it make in 4 minutes and 15 seconds 165=4+(10)T Write answer nearest tenth place The volume of a box is 0.6m. Find its volume in cm what is the surface area of the triangular prism shown What type of rock is most likely to contain a index fossil within it? Which of the following is a reason that the pressure of a sample of gas at a constant volume would fall/decrease 75 mm Hg? The study of spectral lines from the messier 81 galaxy suggests that it is moving toward earth. identify the color toward which these spectral lines shift when visible light from the messier 81 galaxy is observed on earth. Which behavior is most likely to result in unintentional injury? mindfulness of ones state of mind exaggerating the skill level of ones self checking environmental conditions being aware of potential risks A slide contains two objects with animations applied. The first object animates when you advance the slide show. You want the second object to animate automatically after the animation of the first object finishes. Which start option should you apply to the animation of the second object