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Ecology Post Test

Welcome to your Ecology Post Test

1. 
Which statement correctly describes the transfer of energy in a food chain in this wetland?

2. 
The student observes a great blue heron catching fish near the edge of the pond. Based on the information the student collected, which bird will compete with the great blue heron for the same hunting spots and similar prey?

3. 
Some students take care of a vegetable garden. When it is time to plant in the spring, the students leave part of the garden empty in order to observe ecological succession. Which of these will most likely occur first?

4. 
Based on the model, which consumers would receive the greatest amount of energy captured by the producers in their food chains?

5. 
Green crabs carry a parasitic worm that can infect organisms that eat the crabs. Which organism is most likely to be infected by this parasite?

6. 
Tropical rain forests have the greatest biodiversity of any type of land ecosystem. How does biodiversity contribute to the sustainability of an ecosystem?

7. 
A student observing birds in a park records some ways that birds interact with living and nonliving parts of their environment. All the following observations are ways that a bird interacts with nonliving parts of its environment except—

8. 
Which type of organism is missing from this food web?

9. 
Which food web best represents the flow of energy in these feeding relationships?

10. 
Which two types of organisms in this aquatic food web have a producer-consumer relationship?

Ecology Pre Test

Welcome to your Ecology Pre Test

1. 
Based on the chart, which food chain best models a flow of energy in this ecosystem?

2. 
Which types of native organisms do feral hogs most likely compete with for food sources?

Wild hogs introduced to Texas from Europe became feral after the hogs escaped from the ranches where they lived. Feral hogs are omnivores that feed on native plants, crops, and small animals. Feral hogs can damage an ecosystem by rooting through the soil to look for food and trampling small plants.

3. 
Both primary and secondary succession begin with pioneer species that --

4. 
Which statement provides the best explanation for the difference in biomass of organisms found at each trophic level?

A biomass pyramid of an ecosystem is shown.

5. 
In this food web energy is transferred directly between --

6. 
Based on these observations, which ecosystem is likely to be the least sustainable?

7. 
A zookeeper sets up a habitat for a certain species of rabbit. Which answer choice describes the rabbit as it interacts with two nonliving parts of the rabbit’s habitat?

 

8. 
Which table shows the correct role of each organism in the food chain below?

9. 
How many types of organisms in this food web obtain energy directly from producers?

10. 
Which two types of organisms have a producer-consumer relationship in this African savanna?

Infectious Diseases Post Test

Welcome to your Infectious Diseases Post Test

1. 
The scientists concluded that the plants had grown in a hot climate. Which graph most likely represents the data from the investigation?

Woody plants have many different kinds of leaves. Some leaves have very smooth edges, while other leaves have jagged edges, as shown in the diagram. The characteristics of plant leaves vary with the climate in which the plant naturally grows. Some scientists discovered an area with many fossilized leaves of woody plants. The scientists used data from samples of 100 leaf fossils to compare the number with smooth-edged leaves and the number with jagged-edged leaves.

2. 
Which inference is best supported by these data?

A group of scientists studied some trees in a pine forest. In the densely forested areas, the trees were within 1 m of each other. The scientists observed that these trees had dead branches near the ground. They measured the height above the ground at which the first living branches were found on different-sized trees in the forest. Then they repeated this procedure on the same kind of trees in an open meadow. This graph summarizes the scientists' data.

3. 
What is the difference in grams between the total mass of the liquid substances and the total mass of the solid substances used in the investigation?

A student measures the mass of several substances and records the results in the table below.

4. 
Which of these fish has mouth structures that allow it to eat algae by taking large bites of the hard coral on which the algae grows?

The table gives information about four types of fish. These fish all have mouth structures that allow them to eat different types of food.

5. 
Which of these most likely explains why the bacterial population stopped growing?

A scientist added bacteria and a nutrient medium that could support the growth of the bacteria to a sterilized petri dish. No other materials were added. The graph models growth of the bacteria over time.
 

6. 
Describe the overall trend in mean temperature between 1900 and 2000.

This graph shows the global temperature differences collected over 100 years.

7. 
The human immunodeficiency virus (HIV) often infects and destroys CD4 T cells. These cells are one of many kinds of white blood cells that are an important part of the immune system. The most common danger related to the destruction of these white blood cells is —

8. 
The Sabin vaccine is a liquid containing weakened polio viruses. Vaccinated individuals become protected against polio because the weakened viruses...

9. 
Which pathogen is most likely responsible for causing hoof-and-mouth disease in livestock?

In 1898 Friedrich Loeffler and Paul Frosch found evidence that the cause of the highly contagious hoof-and-mouth disease in livestock was a microscopic infectious particle. It was discovered that this particle requires a host cell to reproduce.

10. 
Why is it important to administer an antiviral agent to an infected person within 48 hours of the appearance of symptoms?

H1N1 flu is a highly contagious viral infection caused by the influenza A (H1N1) virus. The symptoms of H1N1 flu are listed in the box below. An antiviral agent administered within 48 hours of the appearance of symptoms can reduce the severity of the illness.

Infectious Diseases Pre Test

Welcome to your Infectious Diseases Pre Test

1. 
Which animal's food sources most likely increased after the mall opened?

Data for four animal populations in a wooded area were collected before and after a shopping mall was constructed near the area. The graph shows changes in the populations.

2. 
At which temperature range will there be the most competition for space among these fish species?

Fish in a lake have to compete for space. Different fish have different optimal temperature ranges. The graph below shows the temperature ranges of four fish species.

3. 
How many citizens chose alternative energy sources?

Citizens in a communty were surveyed about the type of energy resource they would like for a new power plant. The results of the survey are shown in the table below.

4. 
Based on the following information, what is the most likely advantage of the bony fish tail fin over the shark tail fin?

After a trip to an aquarium, some students compared the tail fin of sharks with the tail fin of bony fish. The students made a data table listing characteristics of each type of tail fin.

5. 
Which of the following best summarizes the effect of saltwater on these plant species?

The graph shows the percent of seeds from two plant species that sprout when grown in water containing different amounts of salt.

6. 
If this day continues to be sunny, what will most likely happen to the length of the shadow from 2 P.M. to 4 P.M.?

The graph below shows changes in the length of the shadow of a tree during part of a day.

7. 
Health-care workers are exposed to many different types of pathogenic and nonpathogenic microorganisms. Which body systems work together to protect the body from pathogens?

8. 
Which of these describes a difference between viruses and cells?

9. 
In the 1880s, Louis Pasteur developed a method of weakening viruses. The weakened viruses could be injected into healthy individuals. How is this method effective in fighting viral diseases?

10. 
The 1918 influenza epidemic killed between 50 million and 100 million people worldwide. This epidemic happened near the end of World War I. More people died from the influenza epidemic than were killed in the war. Which of the following explains why this virus was so deadly worldwide?

Stress Pre Test

Welcome to your Stress Pre Test

1. 
The structure shown above belongs to which body system?

2. 
The main function of this human body system is to —

A student drew a picture of a human body system shown below. The student labeled some of the organs of the system.

3. 
When a person is suddenly cut by a sharp object, a nervous impulse is sent along a sensory neuron to the spinal cord. The impulse is immediately transmitted through motor neurons to produce a response. Which of the following correctly identifies and describes this response?

4. 
Which two systems alert the young bird to the danger and help produce the vomit it uses as a defense?

Coracias garrulus is a blue bird with an orange-brown back. The offspring of this bird have an effective defense mechanism. The young birds vomit and cover themselves in a foul-smelling orange liquid when they sense a threat by predators.

5. 
Ovaries produce and secrete hormones in addition to eggs. To what human body systems to ovaries belong?

6. 
A gland is a group of cells that produce and secrete chemicals called hormones. Which of the following gland(s) is located around the esophagus and creates hormones which control metabolic processes in all cells?

7. 
Which of the following is an example of the endocrine system directly interacting with the nervous system?

8. 
An individual who participates in a long-distance run on a hot day will produce large quantities of sweat. As a result of the excessive sweating, the amount of urine produced by the kidneys will change. How will the kidneys respond to help the individual’s body maintain homeostasis?

9. 
During the final stages of human gestation, receptors for the hormone oxytocin increase on the smooth muscle cells of the uterus. The release of oxytocin during labor stimulates the smooth muscle tissue in the wall of the uterus. The strong contraction of the smooth muscle in the uterus helps push the baby through the birth canal so that delivery can occur. This process requires the interaction of which organ systems are together to produce this response?

10. 
Which of the following structures is considered the basic functioning unit of the nervous system and is comprised of a cell body, dendrites, and axons?

Stress Post Test

Welcome to your Stress Post Test

1. 
Which of the structures listed below would be considered part of the nervous system?

2. 
To process and interpret stimuli from the body & external environment is the main function of which of the following human body systems?

3. 
Which of the following statements is true regarding a reflex?

4. 
Which two body systems are working together?

The Autonomic Nervous System includes the Sympathetic Nervous System (SNS) which is responsible for the Flight or Fight response of the body. During a scary scene of a movie, the SNS increases our heart rate and provides energy to our muscles by inhibiting (slowing or stopping) digestion in preparation for quick action.

5. 
The female reproductive and endocrine systems work together for which main purpose?

6. 
One of the functions of the endocrine system in the body is to -

7. 
When a person’s body needs food, the stomach secretes a hormone that causes the brain to signal feelings of hunger. This is an example of an interaction between which two body systems?

8. 
The process by which an organism's internal environment is kept stable in spite of changes in the external environment is called...

9. 
Which of the following organ systems are not directly involved in the process of childbirth?

10. 
Choose the statement that provides the correct pairing of a nervous system structure and it’s appropriate function - - -

Cell Biology Post Test (en Español)

Welcome to your Cell Biology Post Test

1. 
En 1838 el botánico Matthias Schleiden determinó que todas las plantas están hechas de células. En 1839 el anatomista Theodor Schwann propuso que todos los animales están hechos de células. En 1855 el biólogo Rudolph Virchow agrego a las observaciones de Schleiden y Schwann y propuso que todos los seres vivientes están compuestos de células ¿Qué declaración es también parte de la teoría celular de Virchow?

2. 
¿De las opciones dadas, cual de estas describe correctamente la función con la estructura celular?

3. 
Tres primas en una familia tienen una forma de cara similiar pero también diferente. ¿Cual de estos componentes celulares está más involucrado en determinar la forma básica de sus caras?

 

4. 
Algunos componentes de las células aparecen abajo. ¿Que componentes celulares se pueden observar en un portaobjetos y bajo un microscopio en la célula de una hoja epidérmica pero no en la célula de la piel humana?

5. 
Estudios recientes en traumatología (estudio de los huesos) indican que el uso de ultrasonido en un hueso roto disminuye el tiempo de curación en un 25% ¿Cuáles son los niveles de organización más básicos en relación al hueso que está sanando?

6. 
Algunos estudiantes usaron información que acumularon en una investigación de laboratorio y prepararon una tabla. Después copiaron la tabla en sus cuadernos. ¿Cual de las respuestas identifica correctamente la tabla?

7. 
¿Que tipo de orgánulos son directamente responsable en la producción de nuevas moléculas en la célula?

8. 
¿Qué enunciado es correcto sobre el interior de la célula animal?

9. 
¿Qué enunciado describe correctamente el tamaño y la forma de la célula?

10. 
¿Cuál de las siguientes partes de las planta están compuestas por células?

Cell Biology Pre Test

Welcome to your Cell Biology Pre Test

1. 
The diagram below shows parts of a cell. Which organelle stores the information that determines an individual’s blood type?

2. 
In the 1800s two scientists, Theodor Schwann and Matthias Schleiden, studied different types of organisms. After many years of studying a great variety of organisms, they drew similar but independent conclusions about their observations. Schwann studied animals and concluded that all animals are made of cells. Schleiden studied plants and concluded that all plants are made of cells. What statement was developed most directly from these conclusions and is part of the modern cell theory?

3. 
Choose the best option:

4. 
Plants use energy from sunlight, water, and carbon dioxide to produce sugar. Which structure is found only in plant cells and helps plants capture energy from sunlight?

5. 
The human body is composed of organ systems. Which list represents a system organized from least to most complex?

6. 
A single-celled organism can be classified as a prokaryote based on the absence of –

The picture shows a student using a microscope to study a prepared slide of a single-celled organism.
 

7. 
Which cellular process takes place in the ribosomes that are bound to the endoplasmic reticulum?

8. 
What is TRUE about the inside of an animal cell?

9. 
What is TRUE about the size and shape of cells?

10. 
What would a biologist see if she examined a small piece of a leaf from a plant and a small piece of a root from the same plant through a microscope?