Environmental Science Final Exam
Spring 2021
1.
Which of the following would be a density-independent cause of large numbers of deaths in a
population?
a. Disease-carrying beetles
b. Food shortages
C. Hurricanes
d. Predatory birds
2. How many species of organisms exist on Farth?

Answers

Answer 1
Hurricanes are examples of density independent causes of significant population changes!

Related Questions

State the two reactants needed for photosynthesis

Answers

carbon dioxide and water 6CO2 + 6H2O

What natural object inspired the structure of a road reflector? O A Aball-and-socket joint B. A fish's swim bladder O c. A burr D. A cat's eye

ONLY SAY THE RIGHT ANSWER IF YOU DONT KNOW IT DONT ANSWER​

Answers

Answer: a cats eye

Explanation:

name the nitrogenous Waste excreted by the following organisms;desert mole marine fish and tilapia ​

Answers

Answer:

Answer: Desert mole excretes concentrated urine with urea. Marine fish excretes urine with uric acid. Tilapia excretes dilute urine with amino acids.

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Desert mole excretes concentrated urine with urea. Marine fish excretes urine with uric acid. Tilapia excretes dilute urine with amino acids.

ThanksHope it helps

- Recently living organisms have been reclassified into three domains. A new living
object has been found. It is multicellular, and can make its own food by using the sun.
The cells have a cell wall, and they have a nucleus.
Which of the following could it be classified as?

A.animalia

B.plantae

C.fungi

D.protista

Answers

I would Try D if not try B

Which of these planets would be most able to support a colony of humans?

Answers

Answer: Planet A: 76% Nitrogen, 23% Oxygen, 1% Other

Explanation:

To support humans, the planet outside the solar system must have a similar composition of atmosphere with the Earth. It must have nitrogen and oxygen as the most abundant gases in the atmosphere, and small amounts of other gases.

HELP ME I WILL GIVE YOU BRAINLIEST
1- Which of the following is the best evidence that two birds belong to the same species?
A. The two birds eat the same food.
B. The two birds have common behaviors.
C. The two birds are the same size and color.
D. The two birds mate and produce fertile offspring.

Answers

I think it is B let me know if I’m wrong

In what cultures is it commonly acceptable for
pregnant women to drink raw milk and
eat unpasteurized cheeses during pregnancy?
Check all that apply.
European cultures
South Asian cultures
American cultures
Hispanic cultures

Answers

Answer:

A. European Culture B. South Asian Cultures

Explanation:

Correct on Edge.

What is a nerve impulse?

Answers

Answer:

A nerve impulse is the way nerve cells (neurons) communicate with one another.

Explanation:

The graph below shows the averaged sunspots from 1610 to 2007. The graph shows sunspot number on the y axis and years 1600, 1650, 1700, 1750, 1800, 1850, 1900, 1950, and 2000 on the x axis. The graph rises and falls in a cyclic order in gaps of approximately 10 years. The number of sunspots observed in 1610 was 40, in 1650 it was 5, in 1700 it was 10, in 1750 it was 90 and the number of sunspots in 1800 was 50. The number of sunspots observed in 1850 was 130 and the number of sunspots in 1900 was 10. The number of sunspots observed in 1950 was 150 and the number of sunspots observed in 2000 was 30. Based on the graph, which of these conclusions is correct? Some of the previously warm regions became colder from 1650 to 1700. Some of the previously cold regions became warmer from 1600 to 1700. Some of the previously warm regions became warmer from 1610 to 1700. Some of the previously cold regions became colder from 1900 to 1950.

Answers

Answer: Some of the previously warm regions became colder from 1650 to 1700

Explanation: I got it right on the test

According to the graph, the number of sunspots decreased from 1650 to 1700. That means the correct option is A.

What is a sunspot?

The areas of the sun where the magnetic field of the sun is 2500 times more than the Earth. In these areas, the magnetic field is more than anywhere else on the surface of the sun.

Near the area of a sunspot, there is a small amount of energy output from the sun. UV rays from the sun also increase at a high sunspot activity. This increase in UV radiation causes dramatic effects on the atmosphere of the Earth.

The more number sunspots are observed, the more energy will be delivered to the earth. This increase in the energy delivered to the earth would result in an increase in the overall global temperature.

According to the graph, the number of sunspots observed decreased from 40 to 5 and increased slightly from 5 to 10 from 1610 to 1700. So, the statement says that some of the warm regions would become colder from 1650 to 1700.

Therefore, the correct option is A.

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Even healthy people can be affected by high levels of ozone near the ground.
True or False

Answers

The answer would be true.

A person sees a ball and kicks it, in part because of actions of the nervous system. Using the parts of the nervous system listed, describe the path of nerve impulses that cause the person to (1) see the ball and (2) kick the ball.

Answers

Answer:

In the case of seeing a ball and kicking it can be expressed in the actions of the nervous system as follows:

Part 1. Eyes see the ball and send signals with the help of sensory neurons that carry this message to the spinal cord.

PArt 2. The spinal cord processes the information and sends an "impulse" of kicking the ball that will transfer to motor neurons that transfer it to the brain and then muscles.

Sensory neurons --> spinal cord --> motor neurons --> brain---->leg muscles

.ما مصدر الأكسجين المتفاعل مع سكر الجلوكوز

Answers

يأتي الأكسجين الذي تستخدمه الحيوانات للتنفس الخلوي من النباتات وكائنات التمثيل الضوئي الأخرى. متفاعلات التنفس الخلوي في الحيوانات هي نتاج تلك الموجودة في النباتات ، لذلك كل شيء يعمل بشكل جيد.

(أنا لا أتحدث العربية ، لقد استخدمت ترجمة جوجل لذلك أعتذر عن أي أخطاء)

In Figure 30-4, which structure represents unsaturated fat? Which structure represents saturated fat? At room temperature, what state is each type of fat?
State whether each type of fat is associated with heart problems. Give an example of each type of fat.

Answers

The structure on the right is saturated while the structure on the left is unsaturated (presence of double bond). At room temperature the saturated fat will be solid and the unsaturated fat will be liquid.

High consumption levels of saturated fats are associated with heart problems. Consumption of high levels of saturated fats can raise your cholesterol levels and increase risk of heart disease.

Unsaturated fats are not associated with heart problems.

An example of saturated fat would be the fat found on red meat. An example of unsaturated fat would be the fat found in nuts, avocados, etc.

Can you please watch and answer how you feel after? Its about the ocean it a trick the human mind plays. It will be in the comments! Erase spaces!

Answers

Watch what..............??

Answer:

Sorry, what video? I don't see any video.

Explanation:

Anyways, the ocean is quite precious and there are many documentarys that show that. I love the marine life!

How do the organ systems function together in the human body?

Answers

Answer: organ system work together to accomplish their task so the diffrerent organ systems also cooperate to keep the body runing

Explanation:

Which of the following is NOT an example of a chemical reaction?
A)
Oxidation
B)
Decomposition
C) O Combustion
D)
Sublimation

Answers

Answer:

Sublimation

Explanation:

Sublimation is a physical change, not a reaction. There are five main types of chemical reactions: combination, decomposition, single-replacement, double-replacement, and combustion.

Which characteristic is common to grasslands, dry woodlands, and shrublands?
a) They rely on fire as part of their renewal.
b) They have the same terrain.
c) They have the same soil composition
d) They have the same amount of precipitation

Answers

Answer:

They rely on fire as part of their renewal.

Explanation:

They rely on fire as part of their renewal. Which option describes the climate of temperate grasslands

They rely on fire as part of their renewal is common in grasslands, dry woodlands, and shrublands.

Grasslands, dry woodlands, and shrublands

Tropical Grassland, Savanna & Shrubland is dominated by grasses and shrubs, with or without scattered trees. Some occur in climates too dry for the forest; others depend on soil conditions or fire, or both, rather than climate. The structure is a single, major grass or shrub stratum, or a mix of the two, with trees typically <10% cover, rarely with bare ground.

Thus, we can conclude that grasslands, woodlands, and shrublands depend on fire they have these common characteristics.

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b. Earth's thermohaline circulation moves heat around the planet, as can be seen by the warmer
climate in England due to the Gulf Stream. (2 points)
True or false ?

Answers

The answer is to that question is false

Identify the statement that is TRUE:
A. A plant cell is prokaryotic because it has a cell wall.

B. A plant cell is eukaryotic because it lacks membrane-bound organelles

C. A bacteria cell is eukaryotic because it has a nucleus

D. An animal cell is eukaryotic because it has membrane-bound organelles and a nucleus​

Answers

Answer:

D

Explanation:

An animal cell is eukaryotic because it has membrane-bound organelles and a nucleus

How does the integumentary and immune systems work together?
*summary and not too detailed*

Answers

They both work by being an immune system

Variation in great horned owl body size due to food supply can / cannot be acted on by

natural selection.

Answers

Answer:

Variation can be acted on by natural selection.

Explanation:

Variation are the difference that exist in the organism in terms of the body size and can be acted upon by natural selection.

Natural selection could act on the owl body size, favor the selection of owl with small body size especially when resources available are limited and can only sustain small number of individuals leading to availability of owl with small body size in such area and a gradual reduction in the number of owl with large body size.

Which of the three components that plants need do we provide?

Answers

Answer:

Plants, like all living organisms, have basic needs: a source of nutrition (food), water, space in which to live, air, and optimal temperatures in order to grow and reproduce. For most plants, these needs are summarized as light, air, water, and nutrients (known by the acronym LAWN).

A population of large predators in an ecosystem has been trapped and removed from the area. How would this event most likely change the food web in this ecosystem?

Answers

When a top predator is removed from an ecosystem, a series knock-on effects are felt throughout all the levels in a food web, as each level is regulated by the one above it. This is known as a trophic cascade. The results of these trophic cascades can lead to an ecosystem being completely transformed. The impacts trickle down through each level, upsetting the ecological balance by altering numbers of different animal species, until the effects are finally felt by the vegetation.

As per the given scenario, the number of small predators will decrease and the number of herbivores will increase. The correct option is C.

A reduction in the pressure of large predators on herbivores would follow from their disappearance.

Since there would be less threats to them from predators, the population of herbivores would probably rise.

The effect would be a reduction in the population of tiny predators, which may have previously depended on the huge predators as a food source.

As a result of this adjustment, the ecosystem's small predator population would decline while the population of herbivores would expand.

Thus, the correct option is C.

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Your question seems incomplete, the probable complete question is:

A population of large predators in an ecosystem has been trapped and removed from the area. How would this event most likely change the food web in this ecosystem?

A.

The number of herbivores will decrease and the number of producers will increase.

B.

The number of herbivores will increase and the number of producers will decrease.

C.

The number of small predators will decrease and the number of herbivores will increase.

D.

The number of small predators will decrease and the number of omnivores will decrease.

Which conclusion BEST describes the data in this table in reference to all life on Earth?
O Organisms have different proportions of bases in their DNA.
O Plants are least related genetically to other organisms on this table.
0 Animals have similar amounts of bases in their cells.
O The genetic code is exactly the same among all living organisms.
• Previous
Next

Answers

The area is 705.86 ok ok cool lols big Pisa

Which of the following is made of cells?

1. ocean water

2. glass bowl

3.oak tree

4. cement sidewalk

Answers

Explanation:

oak tree are plants and made up of plant cells.

What is happening when an opaque object appears solid black?
A all light is being reflected
B all light is being absorbed
C all light is being refracted
D all light is being transmitted



Answers

B all light is being absorbed

Pesticide resistance is increasing, Farmers in the US tost 7% of their crops to pests in the 1940s, over the 1980s and 1990s, the loss
was 13%, despite more pesticides being used. It is estimated that 500-1000 pests have developed a resistance to pesticides. Consider
the diagram showing the evolution of pesticide resistance. Select ALL of the statements that do NOT accurately describe the
mechanisms of pesticide resistance shown in the graphic.
A)Insects that are sensitive to the pesticide all die out after the first
application, leaving only the resistant insects in the population,
B)When insects are exposed to the pesticide, some will develop a mutationmaking it resistant. Only these insects survive in the next generation
C)The first generation has an insect with a gene responsible for resistance toa pesticide. This allows it to survive the pesticide application and reproduce
D)The insect with the pesticide resistance gene reproduces. Because these insects are more likely to survive pesticide application, insects with this
trait become more prominent in the population
E)As a population of insects is exposed to a pesticide, those susceptible to
the pesticide will die out of the population, leaving those with a resistance
to survive and reproduce, becoming more common in the population

Answers

The insect with the pesticide resistance gene reproduces, these insects are more likely to survive pesticide application  hence insects with this trait become more prominent in the population

What is a pesticide?

A pesticide refers to a chemical that is used to control the spread of pests in the farm.

The question is incomplete but I will help you the much I can. We know that organisms that have favorable traits live long enough to reproduce and pass on these favorable traits to the next generation. Therefore, the insect with the pesticide resistance gene reproduces. Because these insects are more likely to survive pesticide application, insects with this trait become more prominent in the population

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Farley often treats patients with medical products that come from nature. He also performs acupuncture, the art of using needles to restore the flow of energy.



Which career would Farley most likely have?


A: Naturopathic Physician
B: Nurse Practitioner
C: Home Health Aide
D: Pediatrician
Please Help!!

Answers

Answer:

A

Explanation:

search up what a is, trust me, it will make sense for you to click A after this.

The career would Farley most likely have Naturopathic Physician. Therefore, option A is correct.

What is Naturopathic Physician ?

The same fundamental sciences that are taught to conventional medical doctors' students are also taught to naturopathic physician who attend naturopathic medical colleges. In order to get licensed, they must also pass a professional board exam, however they are not regarded as medical doctors.

Natural remedies are used in naturopathic medicine to support the body's ability to cure itself. Herbs, massage, acupuncture, exercise, and dietary advice are just a few of the techniques it embraces. Even though naturopathy was introduced to the United States from Germany in the 1800s, some of its practices date back hundreds of years.

Alternative medicine includes naturopathy, sometimes known as naturopathic medicine. Its physician, known as naturopaths, use a wide range of pseudoscientific techniques that are marketed as "natural," "non-invasive," or encouraging "self-healing."

Thus, option A is correct.

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The hormone that regulates water reabsorption by the kidneys Group of answer choices only increases water permeability in certain portions of the kidney tubules. increases water permeability throughout the kidney tubules. only decreases water permeability in certain portions of the kidney tubules. decreases water permeability throughout the kidney tubules.

Answers

Answer: increases water permeability in certain portions of the kidney tubules.

Explanation:

The proximal convoluted tubule is the site in nephron where selective reabsorption of water and electrolytes like sodium and potassium ions occurs. From there water and other substances are reabsorbed and reenter into the circulation. This cause an increase in blood pressure and blood volume. Only the cells of the proximal convoluted tubule are permeable for this reabsorption process and they are stimulated by a hormone named as aldosterone.

Which feature of the cell is present only in photosynthetic organisms?
(A) mitochondrion
(B) central vacuole
(C) chloroplast
(D) cell membrane​

Answers

Answer:

C.chloroplast

Explanation:

It gives the plant an element of chlorophyll which give it the green pigment or color

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