Bilogy 2⃣

Question 1

What is an atom ?

Answer 1

Is the smallest unit of life

Question 2

What’s an element ?

Answer 2

Is one particular type of atom ,and it cannot be broken down into a simpler substance by ordinary chemical means

Question 3

What is a compound ?

Answer 3

Is a substance made of atoms of different elements bonded together in certain ratio

Question 4

What is an ionic bond?

Answer 4

Forms through the electrical force between oppositely charged ions .

Question 5

What’s an ion ?

Answer 5

Is an atom that has gained or lose 1 or more electrons

Question 6

What is a covalent bond?

Answer 6

Forms when atoms share a pairs of electrons

Question 7

What does an atom is formed of?

Answer 7

• protons
• neutrons
• electrons

Question 8

What is CHON?

Answer 8

Canon
Hydrogen
Oxygen
Nytrogen

Question 9

The human body mass is made of ?

Answer 9

CHON

Question 10

What is a molecule?

Answer 10

Is 2 or more atoms held together by a covalent bonds

Question 11

What is a hydrogen bond?

Answer 11

Is an attraction between a slightly positive hydrogen atom and a slightly negative atom

Question 12

The attraction of a substance is

Answer 12

Cohesion

Question 13

The attraction among molecules of different substance is called

Answer 13

Adhesion

Question 14

Is a mixture of substances that is the same throughout

Answer 14

Solution

Question 15

The substance that is present in the greater amount and that dissolves another substance

Answer 15

Solvent

Question 16

Is a substance that dissolves in a solvent

Answer 16

Solute

Question 17

What are you doing?

Answer 17

Study

Question 18

What is biosphere

Answer 18

All living things and all the places they are found on Earth

Question 19

What’s biodiversity

Answer 19

the variety of
life

Question 20

What’s species

Answer 20

is a particular type of living things that can reproduce by interbreed- ing among themselves

Question 21

What’s biology

Answer 21

is the scientific study of all forms of life

Question 22

What’s an organism

Answer 22

Is any individual living thing

Question 23

What’s a cell

Answer 23

is the basic unit of life

Question 24

What’s metabolism

Answer 24

chemical processes that build up or break down materials.

Question 25

What's DNA

Answer 25

the genetic material

Question 26

What's system

Answer 26

is an organized group of related parts

Question 27

What's ecosystems

Answer 27

is a physical environment with different species

Question 28

What's homeostasis

Answer 28

is the maintenance of constant internal conditions in an organism

Question 29

What's evolution

Answer 29

is the change in living things over time

Question 30

What's adaption

Answer 30

An inherited trait that gives an advantage to individual organisms and is passed on to future generations

Question 31

What's data

Answer 31

Observations

Question 32

What's observation

Answer 32

Looking

Question 33

What's a hypothesis

Answer 33

is a proposed answer for a scientific question

Question 34

What's an independent variable

Answer 34

is a condition that is manipulated, or changed, by a scientist.

Question 35

What's an independent variable

Answer 35

are observed and measured during an experiment

Question 36

What are constants

Answer 36

The conditions that do not change during an experiment

Question 37

What's theory

Answer 37

is a proposed explanation for a wide range of observations

Question 38

Why as a monomer

Answer 38

Each subunit in the complete molecule

Question 39

What's a polymer

Answer 39

is a large molecule, or macromolecule, made of many monomers bonded together

Question 40

What are carbohydrates

Answer 40

are molecules composed of carbon, hydrogen, and oxygen, and they include sugars and starches

Question 41

What are lipids

Answer 41

are nonpolar molecules that include fats, oils, and cholesterol

Question 42

What are fatty acids

Answer 42

are chains of carbon atoms bonded to hydrogen atoms

Question 43

What's a protein

Answer 43

is a polymer made of monomers called amino acids

Question 44

What are amino acids

Answer 44

are molecules that contain carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur

Question 45

In what year was the microscope invented

Answer 45

1500s

Question 46

By who was invented the microscope

Answer 46

Zacharias Janssen