Question

what do eukaryote have in common?
a. they are heterotrophic
b. they have a nucleus
c. they are ectothermic
d. they have hair and feathers
e. they have a nervous system
value: 7
organisms that cannot be classified as bacteria, plant, animal, or fungi, are put into a group called
a. porifera
b. bryophytes
c. protista
d. eudicots
e. annelids
f. gymnosperms
value: 7
____ are terrestrial mollusk.
a. insects
b. earthworms
c. snails
d. isopods
e. scorpions

Explanation:

1. First question: Eukaryotes are defined by having a nucleus. Heterotrophic (a) is not true for all (e.g., plants are autotrophic). Ectothermic (c) is about body - temperature regulation and not a defining feature. Hair and feathers (d) are only in some animals. Nervous system (e) is not present in all eukaryotes (e.g., plants).
2. Second question: Protista is a kingdom for organisms that don't fit into Bacteria, Plant, Animal, or Fungi. Porifera (a) are animals (sponges). Bryophytes (b) are plants. Eudicots (d) are plants. Annelids (e) are animals. Gymnosperms (f) are plants.
3. Third question: Snails are terrestrial mollusks. Insects (a) are arthropods. Earthworms (b) are annelids. Isopods (d) are crustaceans (arthropods). Scorpions (e) are arachnids (arthropods).

Answer:

1. b. They have a nucleus
2. c. Protista
3. c. Snails