SFSU BIO 240 EXAM 3 2025/2026 Exam
Questions with 100% Correct Answers |
Latest Update
Which is a shared, derived character, or synapomorphy of all animals? - 🧠
ANSWER ✔✔Gastrulation
What are the characteristics of animals? - 🧠 ANSWER ✔✔Multicellular
eukaryotes Heterotrophs that acquire or consume food (mostly by
ingestion)
Cells lack cell walls and are instead held together by structural proteins like
collagen
Nervous tissue and muscle tissues are unique to animals (but not all
animals have these cells)
what is Synapomorphy? - 🧠 ANSWER ✔✔Shared, derived character
What is Symplesiomorphy? - 🧠 ANSWER ✔✔Shared, primitive character
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
1
, What are some synapomorhic traits? - 🧠 ANSWER ✔✔Nerve and muscle
tissue - gastrulation
What are some symplesiomorphic traits? - 🧠 ANSWER ✔✔multicellular,
heterotrophic, no cell walls
what is a blastula? - 🧠 ANSWER ✔✔Fertilization of a non-motile haploid
egg by a motile sperm results in a zygote that forms a hollow ball of cells
What are larvae? - 🧠 ANSWER ✔✔sexually immature and morphologically
distinct from the adult stage.
What do Hox family of genes regulate? - 🧠 ANSWER ✔✔body development
and provide the layout of the animal body plan
What do Hox genes do? - 🧠 ANSWER ✔✔produce proteins that act as
transcription factors to activate or repress expression of other genes
what are choanoflagellates? - 🧠 ANSWER ✔✔protists that are the closest
living relatives of animals
What are choanocytes? - 🧠 ANSWER ✔✔individual cells
What are Porifera? - 🧠 ANSWER ✔✔sponges
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
2
Questions with 100% Correct Answers |
Latest Update
Which is a shared, derived character, or synapomorphy of all animals? - 🧠
ANSWER ✔✔Gastrulation
What are the characteristics of animals? - 🧠 ANSWER ✔✔Multicellular
eukaryotes Heterotrophs that acquire or consume food (mostly by
ingestion)
Cells lack cell walls and are instead held together by structural proteins like
collagen
Nervous tissue and muscle tissues are unique to animals (but not all
animals have these cells)
what is Synapomorphy? - 🧠 ANSWER ✔✔Shared, derived character
What is Symplesiomorphy? - 🧠 ANSWER ✔✔Shared, primitive character
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
1
, What are some synapomorhic traits? - 🧠 ANSWER ✔✔Nerve and muscle
tissue - gastrulation
What are some symplesiomorphic traits? - 🧠 ANSWER ✔✔multicellular,
heterotrophic, no cell walls
what is a blastula? - 🧠 ANSWER ✔✔Fertilization of a non-motile haploid
egg by a motile sperm results in a zygote that forms a hollow ball of cells
What are larvae? - 🧠 ANSWER ✔✔sexually immature and morphologically
distinct from the adult stage.
What do Hox family of genes regulate? - 🧠 ANSWER ✔✔body development
and provide the layout of the animal body plan
What do Hox genes do? - 🧠 ANSWER ✔✔produce proteins that act as
transcription factors to activate or repress expression of other genes
what are choanoflagellates? - 🧠 ANSWER ✔✔protists that are the closest
living relatives of animals
What are choanocytes? - 🧠 ANSWER ✔✔individual cells
What are Porifera? - 🧠 ANSWER ✔✔sponges
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
2
