1.1 The study of life Read Online
Viewed from space, Earth offers no clues about the diversity of life forms that reside there. The first forms of life on Earth are thought to have been microorganisms that existed for billions of years in the ocean before plants and animals appeared. The mammals, birds, and flowers so familiar to us are all relatively recent, originating 130 to 200 million years ago. Humans have inhabited this planet for only the last 2.5 million years, and only in the last 200,000 years have humans started looking like we do today.
Download MCQ Test PDF eBook
Question: Smallest group for classifying living things
Choices:
species
kingdom
Question: A group of animals without backbones
Choices:
vertebrates
invertebrates
Question: A plant that has naked seeds
Choices:
gymnosperm
angiosperm
Question: Tissue that carries food from a plants leaves to its cells
Choices:
phloem
xylem
Question: What group has the largest number of animal species?
Choices:
invertebrates
mammals
protests
vertebrates
Question: Largest group for classifying living things
Choices:
species
kingdom
Question: Organizing things into groups based on how the things are alike
Choices:
classification
phloe
Question: Tissue that carries water and nutrients from the roots to every part of the plant
Choices:
xylem
phloem
Question: A material that supports a plant and conducts nutrients
Choices:
xylem
vascular tissue
Question: A group of animals with a backbone
Choices:
vertebrates
invertebrates
Question: A flowering plant that has seeds protected by fruit
Choices:
angiosperm
gymnosperm
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