This document contains questions about various biology topics including nutrition, reproduction, ecosystems, and geology. It asks the student to define key terms, explain processes like photosynthesis and the carbon cycle, describe relationships in ecosystems, and analyze diagrams related to continental drift and volcanic eruptions. It also contains physics questions about motion, speed, acceleration, and interpreting graphs of distance, time, and velocity.

1. RECUPERACIÓN
NUTRITION, INTERACTION, REPRODUCTION
1. What are the characteristics that all the living things share?
2. Explain why the next sentences are false:
a. To produce complex nutrients no energy is needed.
b. Cell respiration is only done by heterotrophic organisms.
c. The autotrophic organisms don´t need organic matter.
d. The heterotrophic organisms only need organic matter to grow.
e. In multicellular heterotrophic organisms the only system in charge of nutrition
is the digestive system.
3. Explain the processes of photosynthesis and cell respiration.
4. Explain the process of nutrition in animals.
5. Explain the different ways that plants have to reproduce asexually..
6. Define the three vital functions.
7. Examine and complete the following scheme. Define alternating reproduction.
8. Explain the scheme of interaction in the animals. What are the systems and organs
involved in the process?
9. Explain the scheme of sexual reproduction in plants.
10. Define nastic and tropic movements and write some examples.
UNIT 12. MATTER AND ENERGY IN THE ECOSYSTEM

2. 1. What is an ecosystem? Define biotope and biocenosis and write some examples of
elements that belong to each one.
2. Why is the water a fundamental factor for living things?
3. Read the next examples. Name the relationship that is being represented:
a. Man and mosquito.
b. Man and fly (it eats the skin remains).
c. Birds and big herbivores.
d. Falcon and lizard.
e. Fungi and algae in lichen.
f. Shark and remora fish.
4. Define the relationships named in question number 3.
5. Why do we say that the matter can be recycled but the energy flows in the
ecosystem? (1,5 points).
6. Explain the carbon cycle (1,5 points).

3. 7. Name and define the intraspecific relationships.
8. Answer the next questions (2 points):
a. Explain the difference between food chain and food web.
b. How is the atmospheric nitrogen used by the plants?
c. Why are the legominous plants important in the nitrogen cycle?
d. Define: ammonia and nitrate.
GEOLOGY
Name: Group
1. What are the internal processes? Where does the internal energy come from?
2. Name the parts of these drawings:
3. Name and explain the evidences of the continental drift. (1.5 points)
4. What is the theory that explains how the continents move? Explain this theory. (1.5
points).
5. Name and explain the different types of volcanoes.
6. Explain the products of a volcanic eruption.
7. How do the seismic waves help us to understand the Earth´s structure?
8. Explain how we can prevent the damages of an earthquake.
9. Name the type of boundary and explain what is happening in each drawing.

4. MATTER AND ENERGY
Name: Group:
1. Explain the difference between mass and weight. define inertia and gravity. (1.5
points)
2. Explain the atom structure and components. Define and explain ions.
3. Fill up the table below.
Atom Mass Protons Neutrons Electrons
Alumnium 27 13
Selenium 34 45
Boron 6 5
Lead 123 82
Zinc 65 30
4. Use the scientific notation:
a. 23 000 000
b. 2 454 000 000
c. 0.000 000 000 000 14
d. 0.000 000 23
e. 0.000 000 234 671
5. What is the difference between different atoms. Define atomic mass and electrical
charge.
6. Define energy. What are the different transformations that matter can undergo?
7. Explain how the atoms are organized forming simple and compounds.

5. 8. Explain the different forms in which the energy can occur (1.5 points).
9. Explain the principle of energy conservation? Can any type of energy transform into
any other type?
PHYSICS
Name: Group:
1. An object is moving with a constant speed of 20 m/s:
a. Plot a distance-time graph and a speed time graph.
b. Define trajectory, point of reference, distance traveled, speed and
acceleration
2. A car with a speed of 80 km/h takes 10 seconds to stop. Calculate acceleration. Would
the car crash with a car placed 200 meters away from the point where the first car
starts decelerating?
3. Falling objects drop with an average acceleration of 10 m/s2 . If an object falls from a
tall building, how long will it take before it reaches a speed of 49 m/s. Plot a graph v-t
and s-t of the motion and answer the same question graphically.
4. One object moves with a speed of 10 m/s while a second object that starts from the
same position but 2 seconds after the first one try to reach it moving with a speed of
25 m/s. Can the second object reach the first one before 2.5 seconds. What will be
the distance travelled by both objects at their meeting point?
5. An train is moving with a constant speed of 25 m/s:
a. Plot a distance-time graph and a speed time graph.
b. What would be the distance travelled by the object after 1 minute?
c. If the train needs to arrive to the next stop that is 150 km away in 90
minutes. Would it be necessary that the train accelerates?