A. Producer
B. Primary consumer
C. Secondary consumer
D. Tertiary consumer

Question

If a population's growth rate decreases as the population size approaches

carrying capacity, the population's growth follows a(n) ______ model.

exponential growth

density-dependent growth

geometric growth

logistic growth

2 of 20

Determine the density of a rabbit population, you would need to know the population count of the rabbits and ________.

the density-dependent limiting factors for that population.

their carrying capacity.

population distribution pattern.

the size of the habitat that the population lives in.

3 of 20

What has helped human populations to increase their carrying capacity in their environments?

agriculture

the ability to build shelters

improved food distribution systems

all of the above

4 of 20

Lichens are one of the first pioneer species on a newly formed volcanic island in the Pacific Ocean. This is an example of ________.

competitive exclusion.

a keystone species.

primary succession.

an endemic species.

5 of 20

May develop in response to predation?

Mimicry.

Cryptic coloration.

Warning coloration.

All of the above.

6 of 20

A(n) _______tends to have a greater impact on community structure than their abundance in the community might suggest.

invasive species

keystone species

endemic species

exotic species

7 of 20

Opportunistic species typically_________.

are large bodied.

follow a type II survivorship curve.

experience little intraspecific competition for resources.

reach sexual maturity slowly.

8 of 20

The best example of secondary succession?

A retreating glacier leaves behind bare rock, which is then colonized by lichens.

A lake steadily becomes shallower and more nutrient-rich over time.

A 100-year flood recently occurred.

After plowing a field, the farmer decided to rest the field for the next season. Over the next few weeks, native grasses and wild flowers began growing in the field. Within a couple of months, small shrubs became established.

9 of 20

Competition among individuals of different species is _______ competition.

extraspecific

intraspecific

interspecific

exospecific

10 of 20

On average, the ecological footprint of an American will be ________the ecological footprint of someone from a developing nation.

larger than

smaller than

about the same as

not comparable to

11 of 20

Is the intentional release of a natural enemy to attack a pest population?

Biological control

Coevolution

Sustainable resource management

Integrated pest management

12 of 20

A species whose members produce only a few offspring and exhibits a high level of parental care _______.

is opportunistic.

will follow a type I survivorship curve.

will be uniformly distributed.

will follow a type III survivorship curve.

13 of 20

In the presence of limiting factors, what shape does a population's growth curve most closely resemble?

S

J

U

∩

14 of 20

Mutualism has ________on one organism, and ________on the other organism.

a positive impact; no impact

a positive impact; negative impact

a negative impact; negative impact

a positive impact; positive impact

15 of 20

Most likely to have density-dependent effects on population growth?

temperature

breeding site availability

fires

floods

16 of 20

Developing nations tend to have higher ______than more highly developed nations.

ecological footprints

life expectancies

ecological services

fertility rates

17 of 20

Level of ecology studies interactions between populations of different species?

Community

Organismal

Population

Ecosystem

18 of 20

A broad-based, pyramid-shaped age structure diagram for a human nation indicates that nation should consider ________.

planning additional retirement services for an aging population.

investing more significantly in childcare and youth education.

importing additional young workers to continue to generate adequate tax revenues.

encouraging people to have more children.

19 of 20

Random plot sampling is used to estimate ______, and the estimate will be the most accurate when the population is _______distributed.

population size; randomly

population density; randomly

population size; uniformly

population density; uniformly

20 of 20

Might be studied by an ecosystem ecologist?

competitive exclusion between two species of fruit flies

how the intensity of light impacts the distribution of algae in a stream

the use of mark-recapture to estimate the number of elk in the Kaibab National Forest of Arizona.

predator-prey interactions between the lynx and snow shoes hares

Answer:

It looks like Italy could be the closest

Explanation:

omg is that GOOOOOOOOOOOON lol sorry-

Especially considering it would have to be based off the how many children are alive because theyll be the future. And Italy is thinner than the U.S and Kenya.

Or I could be reading this incorrectly-

Answer:

...34 minutes later...

Explanation:

Hi sorry Im probably too late anyway but I do hope you did good! Have a wonderful week!

Answer:

D. Only abiotic factors

Answer: A digestive system can be defined as a system which is made up of the alimentary canal and the associated glands and organs which produce some of the enzyme- rich secretions that bring about digestion. The process of digestion of food Hanan are, is discussed below.

Explanation:

The food taken by Hanan consist of carbohydrates (rice, potatoes ), protein( fish, dal) , fats and oil( fish, fried potatoes). The digestion of the food taken passess through a long tube ( alimentary canal) which stretches from the mouth through oesophagus to stomach, intestines and down to the anus.

In the MOUTH, the following occurs:

--> The food is cut and grinded into smaller pieces by the help of the teeth.

--> the enzyme ptyalin acts on the carbohydrate part of the food converting it to complex sugar.

--> the food is mixed with saliva, with the help of the tongue, is rolled into a bolus which is then swallowed.

At the STOMACH, food enters through the peristaltic movements of the oesophagus, The following occurs:

--> The muscular walls of the stomach contract and relax forcefully, thus churning the food.

--> Gastric juice( consists of pepsin, renin and dilute hydrochloric acid). Dilute hydrochloric acid activates pepsinogen to pepsin which digests proteins to polypeptides.

--> Food remains in the stomach for three to four hours. By this time, it is a thick, creamy fluid called chyme which them moves to the duodenum (small intestine).

At the SMALL INTESTINE, digestion occurs at the first part called the duodenum, and later part called the ILEUM.

--> Several substances are secreted into the duodenum from the pancreas( pancreatic juice) and liver( bile), the accessory organs of digestion.

--> pancreatic juice contains three important enzymes whose activities include:

• Amylopsin: Breaks down complex sugar to maltose

• Trypsin: breaks down protein into peptides

• Lipase: Breaks down fat into carboxylic acids and glycerol (end product of digestion of fat).

--> Bile from the liver, adds water to the chyme, emulsifies fat and neutralise the action of dilute hydrochloric.

At the ILEUM, intestinal juice is produced by special cells of the small intestine. Their actions include:

• maltase: this acts on maltose converting it to glucose( which is the end product of carbohydrate digestion).

• erepsin: This acts on peptides converting it to amino acids( which is the end product of protein digestion).

Absorption takes place at the small intestine.

To answer the question what is 77800000 in scientific notation let’s recall how to convert 77800000 to scientific notation as detailed on our home page.

When you split the number 77800000 into a coefficient and a power of 10 you do get 77800000 in exponential form, but there is an indefinite number of possibilities.

As you probably want 77800000 in normalized scientific notation, the coefficient or significand of 77800000 in scientific notation must be in the interval [1,10[.

As there are many ways to express 77800000 in scientific notation, in this post we mean 77800000 in normalized scientific notation, unless stated otherwise. Therefore:

77800000 in scientific notation = 7.78 × 107.

Answer:

yoo im just now learning about this

i think u just move the decimal right? so it would 7.8 with a power of 10^7?

Explanation:

Answer:

I think the answer is d I hope this help

Answer:

A) restoring freshwater marshes

Explanation:

got it right on edg

Answer:good right

Explanation:

Answer:

given below:

Explanation:

Q. A single cell organism can do everything a cell from a multi-cellular organism can do EXCEPT

answer choices

specialize

reproduce

use energy

make protein

Answer:

3% of the earth's water is fresh. 2.5% of the earth's fresh water is unavailable: locked up in glaciers, polar ice caps, atmosphere, and soil; highly polluted; or lies too far under the earth's surface to be extracted at an affordable cost. 0.5% of the earth's water is available fresh water

Explanation:

please give brainliest

Answer:

Water covers about 71% of the earth's surface.

326 million cubic miles of water on the planet

97% of the earth's water is found in the oceans (too salty for drinking, growing crops, and most industrial uses except cooling).

320 million cubic miles of water in the oceans

3% of the earth's water is fresh.

2.5% of the earth's fresh water is unavailable: locked up in glaciers, polar ice caps, atmosphere, and soil; highly polluted; or lies too far under the earth's surface to be extracted at an affordable cost.

0.5% of the earth's water is available fresh water.

If the world's water supply were only 100 liters (26 gallons), our usable water supply of fresh water would be only about 0.003 liter (one-half teaspoon).

In actuality, that amounts to an average of 8.4 million liters (2.2 million gallons) for each person on earth.

This supply is continually collected, purified, and distributed in the natural hydrologic (water) cycle.

Where Water is Found and the PercentageOceans97.2%Ice Caps/Glaciers2.0%Groundwater*0.62%Freshwater Lakes0.009%Inland seas/salt lakes0.008%Atmosphere0.001%Rivers0.0001%TOTAL99.8381%

Answer:

The answer would be A because it would decrease

Answer:

A. Investment costs to taxpayers would decrease.

Answer:

1. D AND B

2.B

3.D

.................. THAT ALL I KNOW

Answer:

In Aquarium C, the water level on the side with 30% solution of NaCl will be higher than the water level on the side with 5% solution.

Explanation:

The movements of molecules based on differences in concentrations of these molecules in different regions is explained by the phenomena of diffusion and osmosis.

Diffusion is the movement of moleculesmfrom regions of higher concentrationto regions of lower concentration until equilibrium concentration is attained.

Osmosis which is a special form of diffusion involving water molecules is the movement of water molecules in a solution across a semipermeable memebrane, from regions of high solvent concentration (low solute concentration) to regions low solvent concentration (high solute concentration) until equilibrium is attained.

A 30% solution of NaCl is more concentrated than a 5% solution of NaCl, therefore, water molecules will move across the semipermeable from the 5% solution to the 30% solution. This will result in a rise in the water level in the 30% solution.

Thus in Aquarium C, the water level on the side with 30% solution of NaCl will be higher than the water level on the side with 5% solution.

Answer:

T

A

C

C

C

G

A

T

G

A

T

C

Explanation:

Each base is paired as follows in DNA:

A paired with T

T paired with A

C paired with G

G paired with C

The letters refer to the primary nucleic acid bases: adenine, cytosine, guanine, and thymine.

b) mRNA strand:

A

U

G

G

G

C

U

A

C

U

A

G

c) Amino Acid Table below! Remember to start from the 5' end of mRNA (toward the 3' end) at a 'start codon'. So read through until you find a group of 3 that make up a start codon, then end with a 'stop codon'. I have to go take a final exam, but you got this!!!

Answer:

When plants photosynthesize, they produce oxygen.

Answer:

A. It warms air entering the body.

Explanation:

The respiratory system functions the organs and breathing.  B tells you that it exchanges oxygen and carbon dioxide, which is functioning breathing.  C is pumping blood into the organs, which is part of the respiratory system.

Hope this helped! :3

Answer:

C. It is converted to chemical energy is your answer

c ) itz ans.....................,.........

Answer:

Hellooo

ur answer is false

it isn't an unicellular organism

Answer:

a long and wet winter but and short and drier summer. option one i think

Explanation:

Temperate rainforests are characterized by cooler; long wet season and short dry season.

One of the world's major habitats is the temperate forest biome. These forests are characterized by humidity and high levels of precipitation. The temperate rainforests exhibit a broad array of temperatures, which correlate with the different seasons.

Temperature ranges from extremely cold in the winter and hot in the summer. The forests receive enough amounts of precipitation, generally between 20 to 60 inches of rainfall in a year. The temperate rainforests have a short dry season, while cooler and long wet seasons.

Thus, the correct statement is the first one, that is, cooler and long wet season and short dry season.

Find out more information about temperate rainforests here:

https://brainly.com/question/2786076

Answer:

In the sporophyte phase a diploid (having two sets of chromosomes) plant body grows and eventually produces spores through meiosis. These spores divide mitotically to produce haploid (having a single set of chromosomes) gamete-producing bodies called gametophytes.

Explanation:

Hope I Help?

Please Mark Me Brainly!!

Answer:

pH: If it's to much on either the alkaine or the acid side the enzymes will vary

Explanation:

Answer:

more genetically similar than any other species.

Explanation:

Answer:

Photosynthesis is the conversion of light energy into chemical energy by living organisms. The raw materials are carbon dioxide and water; the energy source is sunlight; and the end-products are oxygen and (energy rich) carbohydrates, for example sucrose and starch

Explanation:

Mitosis is the reason we can grow, heal wounds, and replace damaged cells. Mitosis is also important in organisms that reproduce asexually: this is the only way that these cells can reproduce. This is the one key process that sustains populations of asexual organisms.

This is what I found during my research and I hope this helped somehow. Have a good one!

Answer:

the first is mostly false but somewhat tru the second is true and the third is true

Explanation:

Answer:

The thermal energy will flow from the computer to the person.

Explanation :

Usually computer are such devices which converts electrical energy into thermal energy and then it gets transferred to the person. The energy flows from the higher amount to lower amount. In this case, computer is producing higher thermal energy than the person that’s the reason for the flow of energy from computer to the person.

The thermal energy will flow from the computer to the person.

The energy in a system that controls its temperature is referred to as thermal energy. Heat is the progression of nuclear power. The first law of thermodynamics explains how heat and work are transferred between systems.

Bubbling water on an oven is an illustration of nuclear power. When a substance's atoms and molecules vibrate at a faster rate as the temperature rises, thermal energy is produced.

Utilizing steam power produced by burning oil, coal, liquid natural gas (LNG), and other substances to rotate generators and generate electricity is the process of producing thermal power.

Learn more about thermal energy:

https://brainly.com/question/18989562

#SPJ3

Answer:

predators

Explanation:

Answer:

Negative feedback

Explanation:

Feedback mechanism is activated due to the change in the system that result into an output.

A negative feedback mechanism is a pathway that is caused by deviation in the output that result in a change in output direction which is usually opposite to the initial deviation.

The process of feeding of sea lamprey on the fish started as a normal pathway the deviation started when they could not feed on the fish again as a result of reduced population and they start dying of hunger. It is a negative feedback

Answer:

Carbon dioxide in the biodome decreased because decomposers decreased which means there was a decrease in cellular respiration overall. How do they figure it out? They get evidence from the sim and from video of an experiment to determine which organisms do cellular respiration.

Explanation:

Hope this helped you :D

Answer:

I can't see a diagram. But if the arrow is not moving, but about to be released it would be known as potential energy.

Answer:

You could search the cell and It will tell you the organelles.

Explanation: