LESSON 1: THE EVOLVING CONCEPT OF LIFE BASED ON EMERGING PIECES OF EVIDENCE

Question 1

studies life in all its forms, past and present. This can include plants, animals, viruses and bacteria, single-celled organisms, and even cells. Life sciences study the biology of how these organisms live, which is why you may hear this group of specialties referred to as biology.

Answer 1

LIFE SCIENCE

Question 2

studies life in all its forms, past and present. This can include plants, animals, viruses and bacteria, single-celled organisms, and even cells. Life sciences study the biology of how these organisms live, which is why you may hear this group of specialties referred to as biology.

Answer 2

LIFE SCIENCE

Question 3

studies life in all its forms, past and present. This can include plants, animals, viruses and bacteria, single-celled organisms, and even cells. Life sciences study the biology of how these organisms live, which is why you may hear this group of specialties referred to as biology.

Answer 3

LIFE SCIENCE

Question 4

CHARACTERISTICS OF LIFE (CRGREH)

Answer 4

• They are made up of cell
• They are capable of reproduction
• They grow and develop
• They respond to their environment
• They exhibit metabolism
• They maintain homeostasis

Question 5

TYPES OF ORGANISMS

Answer 5

EUKARYOTE AND PROKARYOTE

Question 6

ANY CELL ORGANISM THAT POSSESES A CLEARLY DEFINED
NUCLEUS
• CONTAIN ORGANELLES
• ANIMALS, PLANTS, FUNGI AND PROTISTS
• EITHER CAN BE UNICELLULAR OR MULTICELLULAR

Answer 6

EUKARYOTE

Question 7

• ANY ORGANISM THAT
LOCKS A DISTINCT NUCLEUS
AND OTHER ORGANELLES DUE TO THE ABSENCE OF INTERNAL MEMBRANE
• BACTERIA AND ARCHEA
• UNICELLULAR

Answer 7

PROKARYOTE

Question 8

WHEN AND WHERE LIFE FIRST BEGAN ON EARTH?

Answer 8

Zircon crystals, stromatolites, Homo Erectus,

Question 9

“Upright Human”
• First discover discovered fire and start to cook

Answer 9

Homo Erectus

Question 10

discovered several types of physical evidence that confirmed the earth’s age during the 1800s.

Answer 10

• Geologists,
Paleontologist and
Naturalists

Question 11

EVIDENCES (FRVe)

Answer 11

-Fossils of ancient sea life on a dry land far from oceans.
-layers of rock
-Indications that volcanic eruptions, Eartquakes and erosion.

Question 12

Fossils of ancient sea life on a dry land far from oceans.

Answer 12

Trilobites and fish fossil

Question 13

VIOLENT
• CHAOTIC
• ANINHABITABLE

Answer 13

Earth’s Age - 4.6 Billion years old

Question 14

LIFE ON EARTH, PROBABLY BEGAN ONLY BETWEEN

Answer 14

3.5 TO 4.0 BILLION YEARS AGO

Question 15

The first form of life is believed to have appeard 3.5 billion years ago. the first evidence of life is found in microfossils.
Microfossils are fossils that contains the remains of tiny plants and animals. (they are very small)
Some of remain organisms do not have nuclues so they were called
/ PROKARYOTES

• UNICELLULAR ORGANISM - MULTICELLULAR ORGANISM

Answer 15

EARLY FORMS OF LIFE

Question 16

are fossils that contains the remains of tiny plants and animals. (they are very small)

Answer 16

Microfossils

Question 17

they started to make their own food by utilizing the energy from the sun and the carbon dioxed in the atmosphere.

The process of photosynthesis produced more oxygen that changed the Earth’s early atmosphere.

Answer 17

These are PHOTOSYNTHETIC ORGANISMS.

Question 18

the first photosynthetic organism to form.

Answer 18

CYANOBACTERIA

Question 19

the first photosynthetic organism to form.

Answer 19

CYANOBACTERIA

Question 20

Oxygen was scarce on the early earth
• Ancestral cell must also have been

Answer 20

Anaerobic

Question 21

Oxygen was scarce on the early earth
• Ancestral cell must also have been

Answer 21

Anaerobic

Question 22

the oldest cell microfossils are fillaments from 3.5 billion years - old rocks in Western Australia. the filaments resemble chains of modern photosynthetic bacteria and the rocks in which they occur are the remains of ancient

Answer 22

Stromatolites

Question 23

THE FIRST EUKARYOTES
WERE

Answer 23

Protists

Question 24

The evolution of life is brought about the changes in the environment which are linked to changes in climate and geology. These Earth’s environmental changes made the Earth’s environment more suitable for a wider variety of life forms.

Answer 24

Newly Discovered tree species endemic to Dinagat Island