BIOB51 Sample Qs 2025/2026 Exam
Questions and Verified Answers |
Already Graded A+
analyses of fossils cannot inform us about:
a. What is eaten by different living things in the past
b. When different living things were on Earth in the past
c. How different living things fit into Earth's past ecosystems
d. The similarities and differences of the genomes of different living things
in the past - 🧠 ANSWER ✔✔Ans: D
The similarities and differences of the genomes of different living things in
the past
Whether an atom is permanently stable or unstable, or will ultimately
spontaneously decay, depends on:
a. The number of protons in the nucleus
b. The number of neutrons in the nucleus
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,c. The number of electrons in the electron cloud
d. The number of protons plus the number of neutrons in the nucleus - 🧠
ANSWER ✔✔ANS:B
b. The number of neutrons in the nucleus
The earth is very old. This statement is supported by the fact that
radioactive isotopes:
a. Are not found on Earth at all
b. That replenish themselves, such as C-14, are not found naturally on
Earth
c. With relatively long half-lives are not found naturally on Earth
d. With relatively short half-lives are not found naturally on Earth - 🧠
ANSWER ✔✔ANS:D
d. With relatively short half-lives are not found naturally on Earth
What do phylogenetic trees represent?
a. change in the frequency of alleles in a population over time
b. shared morphologies of species
c. a series of speciation events
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, d. evolution over time - 🧠 ANSWER ✔✔ANS: D
d. evolution over time
Which statement about the root of a phylogenetic tree is correct?
a. A rooted tree shows which node is the common ancestor of all the taxa
shown in the tree.
b. A rooted tree does not contain information about which character states
are ancestral and derived.
c. In a rooted tree, the root is indistinguishable from the tips of the tree.
d. An unrooted tree cannot be used to depict evolutionary relationships
among plants - 🧠 ANSWER ✔✔ANS: A
a. A rooted tree shows which node is the common ancestor of all the taxa
shown in the tree.
Which statement about the node of a phylogentic tree is correct:
a. A node connects two speciation events.
b. A node represents the point at which a lineage splits.
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STATEMENT. ALL RIGHTS RESERVED
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Questions and Verified Answers |
Already Graded A+
analyses of fossils cannot inform us about:
a. What is eaten by different living things in the past
b. When different living things were on Earth in the past
c. How different living things fit into Earth's past ecosystems
d. The similarities and differences of the genomes of different living things
in the past - 🧠 ANSWER ✔✔Ans: D
The similarities and differences of the genomes of different living things in
the past
Whether an atom is permanently stable or unstable, or will ultimately
spontaneously decay, depends on:
a. The number of protons in the nucleus
b. The number of neutrons in the nucleus
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
1
,c. The number of electrons in the electron cloud
d. The number of protons plus the number of neutrons in the nucleus - 🧠
ANSWER ✔✔ANS:B
b. The number of neutrons in the nucleus
The earth is very old. This statement is supported by the fact that
radioactive isotopes:
a. Are not found on Earth at all
b. That replenish themselves, such as C-14, are not found naturally on
Earth
c. With relatively long half-lives are not found naturally on Earth
d. With relatively short half-lives are not found naturally on Earth - 🧠
ANSWER ✔✔ANS:D
d. With relatively short half-lives are not found naturally on Earth
What do phylogenetic trees represent?
a. change in the frequency of alleles in a population over time
b. shared morphologies of species
c. a series of speciation events
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
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, d. evolution over time - 🧠 ANSWER ✔✔ANS: D
d. evolution over time
Which statement about the root of a phylogenetic tree is correct?
a. A rooted tree shows which node is the common ancestor of all the taxa
shown in the tree.
b. A rooted tree does not contain information about which character states
are ancestral and derived.
c. In a rooted tree, the root is indistinguishable from the tips of the tree.
d. An unrooted tree cannot be used to depict evolutionary relationships
among plants - 🧠 ANSWER ✔✔ANS: A
a. A rooted tree shows which node is the common ancestor of all the taxa
shown in the tree.
Which statement about the node of a phylogentic tree is correct:
a. A node connects two speciation events.
b. A node represents the point at which a lineage splits.
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
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