Life cycles and reproduction | Science | Quizalize & Oak National Academy

Starter quiz

What are produced by all organisms following reproduction?
- clones
- offspring ✓
- children
- cubs
Choose the stage in the life cycle where reproduction is taking place.
- egg to hatchling
- hatchling to fledgling
- fledgling to adult
- adult to egg ✓
What is the name of the chemical molecule that is stored in the nucleus of cells?
- chromosome
- genetic information
- DNA ✓
- genes
Match the word to its definition.
- DNA
  
  ⇔
  
  A chemical molecule that carries the genetic code. ✓
- reproduction
  
  ⇔
  
  The process where living organisms make offspring. ✓
- life cycle
  
  ⇔
  
  The stages a living organism goes through in its life. ✓
- growth
  
  ⇔
  
  A process that increases the size of an organism by making new cells. ✓
Following reproduction, plants produce a ______ which germinates and grows to form a seedling.
- 'seed' ✓
At which stage in this life cycle is DNA passed on?
- pupa to adult
- adult to egg ✓
- egg to larva
- larva to pupa

True or false? Some living organisms such as bacteria do not have a life cycle.
- True
- False ✓
What do all life cycles include?
- Mm
- growth ✓
- larva
- reproduction ✓
Which best describes a zygote?
- An egg cell with genetic information from the mother.
- An adolescent containing genetic information from two parents.
- A fertilised egg containing genetic information from both parents. ✓
- A seed that contains genetic information from both parents.
Put the stages of human reproduction in the right order, starting with an adult.
- 1
  
  ⇔
  
  adult
- 2
  
  ⇔
  
  zygote
- 3
  
  ⇔
  
  baby
- 4
  
  ⇔
  
  child
- 5
  
  ⇔
  
  adolescent
True of false? Seeds are the offspring of plants.
- True ✓
- False
Who's correct?
- Jun: A zygote is many cells whereas a seed is one big cell.
- Sam: Seeds and zygotes are both made through sexual reproduction. ✓
- Izzy: A seed and a zygote will both grow.
- Andeep: Seeds and zygotes both have DNA from both parents. ✓

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All living organisms have a life cycle.
All life cycles include stages of growth and reproduction.
In humans, the reproduction stage of the life cycle involves producing a baby that grows into a new human.
In some plants, the reproduction stage of the life cycle involves producing a seed that grows into a new plant.

Sexual reproduction occurs in animals but not in plants.

The lesson contains a section on plant sexual reproduction.

Life cycle - A life cycle is the stages a living organism goes through in its life.
Growth - The growth of an organism is an increase in size due to making more cells.
Reproduction - Reproduction is a common process where living organisms make offspring.
Zygote - A zygote is the fertilised egg of a human, and the first stage in the life cycle.
Sexual reproduction - Sexual reproduction is the process of making offspring where half the DNA is passed from each parent.