Quarter 2 Review

Which statement best explains why children resemble their parents?

• They eat the same food.
• They live in the same area.
• They speak the same language.
• They have a similar DNA structure. 

A student fell while she was playing on the playground. The school nurse said the student might have fractured a bone in her arm.
Which major body system did the student's fall impact?

• circulatory system
• muscular system
• nervous system
• skeletal system

If an adopted kitten is kept indoors and never taught to hunt, it would still know how to catch a mouse. How is it possible for the kitten to know how to hunt?

• It inherits this behavior from humans.
• It learns this behavior from its parents.
• It inherits this behavior from its parents.
• It learns this from other cats.

A student listed a few characteristics that humans can possess.
-freckles
-curved thumb
-dimpled cheeks
-attached earlobes
What does these characteristics all have in common?

• They are inherited from parents.
• They can be acquired during development.
• They are influenced by the environment.
• They each appear twice in every human being.

Which characteristic of single-celled organisms explains why they are able to survive as a single cell?

• The single cell has developed transport systems.
• The single cell can perform all the life processes.
• The single cell can specialize to perform specific functions.
• The single cell is very distant from the environment for direct exchange.

A student listed a few points about single-celled organisms.
1. They possess only one cell.
2. All life processes are performed in one cell.
3. They can directly exchange materials with the environment.
4. They have a well-developed transport system.
5. Humans are types of single-celled organisms.
Which points did the student is incorrectly?

• 1 and 2
• 2 and 3
• 3 and 4
• 4 and 5

Bella's father is a left-handed golfer who is also good at cycling, while her mother is a talented singer and dancer.  Which characteristic would Bella most likely inherit from her parents?

• cycling
• dancing
• dominant hand
• talented singing

What do some single-celled and multi-celled organisms have in common?

• ability to consume other organisms.
• ability to become large in size
• having different cells that perform different processes
• having only one cell

A sunflower has behaviors that allow it to respond to changes in its environment.
Which statement best demonstrates a sunflower's response to its environment?

• The roots of a sunflower are used to anchor the plant into the soil.
• The stem and leaves grow toward the Sun's light.
• The sunflower is brightly colored to attract birds.
• The stem of the sunflower supports the flower.

Sam and Robin are brothers. Sam is taller and has red hair, while Robin is shorter and has brown hair. Their mother is short and has red hair, while their father is tall and has brown hair.
Which statement best describes this mixing of parental characteristics in these brothers?

• One gene can be inherited only once.
• Identical genes show differently in children.
• Showing of genes is dependent on the type of food liked by the child.
• Each child receives a different combination of genes from their parents.