Question

1. the arrangement of muscle tissue, nervous tissue, and connective tissue working together forms a

a) organ purple
b) organism red
c) organ system dark green
d) tissue orange

1. which of the following is an example of a plant organ?

a) chloroplast brown
b) stomata blue
c) leaf pink
d) vascular bundle yellow

1. which level of organization is missing in the sequence: red blood cells, blood, cardiovascular system?

a) organ light blue
b) tissue light green
c) cell red
d) none of the above purple

1. which level of organization is missing in the sequence: root hairs, root, root system, plant?

a) organ dark green
b) tissue blue
c) cell orange
d) none of the above pink

1. what is the primary function of organ systems in multicellular organisms?

a) reproduction brown
b) coordination and regulation of body activities purple
c) cellular respiration red
d) dna synthesis yellow

1. true or false: multicellular organisms have complex organ systems with cells for specialized functions, in contrast to unicellular organisms.

a) true pink
b) false light green

Explanation:

1. Different types of tissues working together form an organ. For example, muscle, nervous, and connective tissues combine to make organs like the heart.
2. A leaf is a plant organ that performs functions like photosynthesis and gas - exchange. Chloroplasts are organelles, stomata are small openings, and vascular bundles are tissue systems.
3. The biological levels of organization go from cells (red blood cells) to tissues (blood is a connective tissue) to organs (like the heart in the cardiovascular system) to organ - systems. The missing level is organ.
4. Root hairs are cells, root is an organ, root system is a group of organs, and plant is an organism. The missing level is tissue.
5. Organ systems in multicellular organisms coordinate and regulate body activities. For example, the nervous and endocrine systems work together for regulation.
6. Multicellular organisms have complex organ systems with specialized cells, which is a key difference from unicellular organisms.

Answer:

1. a) Organ
2. c) Leaf
3. a) Organ
4. b) Tissue
5. b) Coordination and regulation of body activities
6. a) True