One way of representing the structure of an ecosystem is through ecological pyramids. Ecological pyramids represent the amount of organisms, biomass or energy at each tropic level, which most often is in a pyramidal shape. Why are most visual representations of ecosystems in the shape of a pyramid?
Select one:
a. Producers use a low amount of sunlight and produce a high amount of energy for all other organisms.
b. Very large carnivores (for example, wolves) have the most energy available to them from the trophic levels below.
c. The large number of primary consumers supplies a large amount of energy for fewer autotrophs.
d. At each trophic level, energy is lost (as heat) in the transfer of energy from one trophic level to another.

Answer:

part 1 of this question is 17.1/.76=90

90/x

x=4

90/4=22.5

22.5 mil years for one full base pair mutation to occur

Explanation:

this is the model for part 2

Answer:

Sailfish

Explanation:

Answer:

Sailfish.

Explanation:

Answer:

II only

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Answer:

A - Lava

Explanation:

Prokaryotes were the earliest life forms, simple creatures that fed on carbon compounds that were accumulating in Earth's early oceans. Slowly, other organisms evolved that used the Sun's energy, along with compounds such as sulfides, to generate their own energy.

Answer:

lava

Explanation:

i ✨think✨

Answer:

During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs. This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.

Explanation:

Answer:

b.

Explanation:

does not effect extractions

Answer:

D

Explanation:

Answer:

spores

Explanation:

plant body grows and eventually produce spores through meiosis.These spores divide mitotically to produce haploid (having a single set of chromosomes)

Answer:

I would say, a combination of all the data on the graphs

Explanation:

I hope this helps!

Answer:

The correct answer is - health hazards (carcinogenic).

Explanation:

Processed foods, cured meat, and certain types of wines have a chemical present in them for increasing the life of the food and taste. This chemical is used in this food are known for their cancer-causing properties and grouped as group 1 carcinogen which comes under health hazard of type of chemical hazard.

N-nitroso-compounds (NOC) and polycyclic aromatic hydrocarbons (PAH) are the two major chemicals used in cured meat and processed food. There are many other severe health conditions also caused by ingesting a high amount of such food like diabetes, cardiovascular disease, and obesity.

Answer:

Kidneys are sort of garbage collection sites, for wastes within liquids. They send this waste-filled liquid into the Bladder, which holds it until discarded. Kidneys aren't perfect however, an imbalance of salt or too much waste without enough fluid can damage them. Similarly, if the waste is not discarded, the Bladder can develop issues aswell.

Explanation:

Answer:

The kidneys make urine for the bladder to hold

Answer:

Provide food stuff and oxygen.

Explanation:

Making of food and supply of oxygen are the two biological benefits that photosynthetic plants provide to the crew of the ship. The plants make their own food for itself as well as for other organisms and also release oxygen that is produced in the process of photosynthesis. The crew should placed the plants in the sunlight and provides water daily in order to survive and photosynthesize. The sunlight and water are very important because sunlight opens the stomata through which carbondioxide gas enters into the leaves which combines with the water forming glucose and oxygen. Glucose is stored in the plant body whereas some oxygen is used by the plant during respiration and the extra is released in the air through stomata.

"Worms dig tunnels in soil", best describes how organisms and populations depend on abiotic factors in an ecosystem. Therefore, option (C) is correct.

Abiotic factors are non-living aspects of the environment that have an effect on living things. In this scenario, worms are considered to be biotic factors; however, the abiotic factor of soil is required for the worms' tunneling activity in the soil. The behavior of worms and the impact that they have on the ecosystem can all be influenced by the moisture level, texture, and nutrient density of the soil.

Therefore, choice (C) illustrates how organisms' ability to survive and perform their roles within an ecosystem is contingent on the presence of abiotic factors.

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Answer:

From the kidneys, urine travels down two thin tubes called ureters to the bladder. The ureters are about 8 to 10 inches long. Muscles in the ureter walls constantly tighten and relax to force urine downward away from the kidneys. If urine is allowed to stand still, or back up, a kidney infection can develop.

Explanation:

Answer:

Heterotrophs, or consumers, are organisms that must obtain energy by consuming other organisms as food

Explanation:

hope it helps sorry if it's wrong

Answer:

I don't know what Poultry keeping is but Poultry is the group name for all domesticated birds used for meat, eggs, or feathers. Poulry are also referred to as birds and fowl. These birds have wings, backbones, and feathers; some can even swim.

Explanation:

- Eijiro <3

Answer:

Transpiration through stomata

Answer:

the zooplankton would increase

Explanation:

there are not vary many salmon to eat the zooplankton

The skin integumentary system and immune system are pairs of an organ that functions in two different organ systems.

The skin and other parts of the integumentary system work with other organ systems to maintain homeostasis. The skin works with the immune system to defend the body from pathogens by serving as a physical barrier to microorganisms.

Thus, the skin integumentary system and immune system are pairs of an organ that functions in two different organ systems.

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Answer:

Basic Categories of Arthropods

Chelicerata: horseshoe crabs, spiders, scorpions, sea spiders and mites.

Myriapoda: millipedes, centipedes, pauropods and symphylans (known as glasshouse symphylans or garden centipedes)

Crustacea: brine shrimp, barnacles, lobsters, crabs, shrimp and remipedes.

Explanation:

Hope it helps

Answer:

Each gamete comprises half of the organism's chromosomes, or genetic material. As a result, each sperm carries 50% of the father's genes and each egg carries 50% of the mother's genes. This distinguishes gametes from other cells in the body.

Explanation:

Answer:

Genetic diversity is increased by independent assortment (genes are inherited independently of each other) and crossing over during meiosis. During meiosis, chromosomes (which are found in pairs) swap large portions of their molecules, causing genetic material to be mixed between them.

Explanation:

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Answer: Echo

Explanation:

I hope this helped!

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Answer:

First read the student guide to understand everything that will occur in this lab. Second read the safety guideline to ensure no one is harmed during this lab. Then gather your materials for the lab. After that section off your grass into 32 sections. Choose a quadrant and make some observations. Then choose a random sample area in your quadrant to estimate how many individual pieces of grass are present. Next, find the average height of the grass. Then, compare the data to quadrant #18. Plant your seeds. Count how many blades of grass are in your random sample area, and then calculate the estimated number of blades in your quadrant. Find the average height of the grass. Compare your data once again to quadrant #18, which is in the control group. Record the height of all the plants and calculate the average height for each type of plant. Compare this data with the data from quadrant # 18. Combine the data from all quadrants, and then compare the data from the experimental group to the control group. Make sure you record all your data.

Explanation:

Answer:

look at quizlet.

Explanation:

Answer:

a. veins and arteries

b.diaphragm

c.kidney

d.lung

e.4

f.left auricle(atrium) , right auricle(atrium)

g.left ventricle, right ventricle

h.blood plasma

i.digestive

j.buccal cavity ,saliva

k.bile

l.excretory

m.kidneys

Explanation:

Answer:

Fire. Fire is one of the most common causes of secondary succession and is an important component for the renewal and vitality of many types of ecosystem.

Harvesting, Logging and Abandonment of Crop Land.

Explanation:

1- After a fire, species start to recolonize an area, beginning the secondary succession process. The first species to colonize are usually fast growing herbaceous plants, such as conifers or ferns, which require high levels of light. These species are often already present in the form of seeds within the soil, or are able to rapidly disperse from nearby areas. In time, slow growing, shade-tolerant, woody species begin to suppress the early successional species, which are in-turn replaced or shaded by large trees, eventually leading to the generation of forests and a climax community.

2- The abandonment of land previously utilized for crops is a common cause of human-induced secondary succession. Land which has been intensively cultivated is often nutrient poor, with the nutrients having been repeatedly removed through harvest or logging. Agricultural processes also often leave the soil vulnerable to high levels of erosion. The abandonment of such land allows plants and animals that were previously unable to inhabit the area to colonize. Early succession of vegetation following the abandonment of farmland is responsible for increases in soil organic content, nutrient density and soil porosity. The addition of shrubs and of root systems within the soils, which follow in later succession, acts as a natural barrier against erosion, thereby allowing for restoration of degraded habitats.

Secondary succession is a type of ecological succession in which plants and animals recolonize a habitat following a significant disturbance, such as a devastating flood, wildfire, landslide, lava flow, or human activity.

Thus, Primary succession, in which a biological community emerges where none previously existed, is distinguished from secondary succession.

Where a disturbance did not completely wipe out all life and nutrients from the environment, secondary succession occurs.

Despite the fact that fire, flooding, and other disturbances can leave a landscape in ruins, drive many animals and plants away, and bring the biological community back to an earlier stage, the habitat is still alive because the soil still contains nutrients and seeds that were sown before the disturbance and animals.

Thus, Secondary succession is a type of ecological succession in which plants and animals recolonize a habitat following a significant disturbance, such as a devastating flood, wildfire, landslide, lava flow, or human activity.

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