Biology final 🦠

Question 1

How old is Earth?

Answer 1

4.6 billion years ago

Question 2

BYA

Answer 2

Billion years ago

Question 3

MYA

Answer 3

Million years ago

Question 4

How many million in a billion?

Answer 4

1000 million

Question 5

Difference between relative fossil dating and radioactive dating?

Answer 5

Relative - A method used to determine the age of rocks by comparing them with the layers
Radioactive - Determines the specific age of fossils by looking at the chemical elements

Question 6

Why isn’t everything that has ever lived on Earth in the fossil record?

Answer 6

1. Some decompose
2. The condition to make a fossil was rare when there was more life on Earth

Question 7

Prokaryotic cell

Answer 7

Single-celled organism that lacks a nucleus and other membrane-bound organelles

Question 8

Eukaryotic cell

Answer 8

Organisms whose cells have a nucleus

Question 9

Single-celled organism

Answer 9

An organism that consists of a single-cell (Unicellular organism)

Question 10

Multicellular organism

Answer 10

Composed of more than one cell, with groups of cells differentiating to take on specialized functions

Question 11

Homnid

Answer 11

The group consisting of all modern and extinct Great Apes

Question 12

Absolute dating and relative dating?

Answer 12

Absolute - Provides a numerical age or range in contrast with…
Relative - Places events in order without any measure of the age between events

Question 13

Quantitative

Answer 13

Number data

Question 14

Qualitative

Answer 14

Descriptive data

Question 15

Vertebrate

Answer 15

Bony structure

Question 16

Invertebrate

Answer 16

Don’t have a bony structure

Question 17

Atmosphere

Answer 17

21% oxygen mostly nitrogen

Question 18

What is our best physical evidence that life evolves on Earth?

Answer 18

The best physical evidence is fossils

Question 19

How do you solve a %

Answer 19

% = part/whole

Question 20

Characteristics of life

Answer 20

1. Growth
2. Reproduce
3. Energy