Question

For each of the following, state whether it is an organelle, a cell, a tissue, an organ, an organ system or an organism

A heart
B trachea
C onion epidermis
D onion bulb
E onion plant
F human being
G lungs

Answer 1

A) Heart= Organ

B) Trachea= Organ

C) onion epidermis= tissue

D) onion bulb= organ (for plant)

E) onion plant= organ (for plant)

F) Human being= single structure but it is made up of billion of smaller structures of four major kinds: Cells, Tissues, Organs and systems.

G) lungs= organ

Hope this help!!

Answer 2

all of the organs are needed for the human body