ANSWERS | 2026 UPDATE | WITH ACTUAL SOLUTIONS
Which organelle extracts energy from food molecules and stores it in the
high-energy bonds of ATP? - ANS.... -mitochondrion
Living organisms must self-regulate their internal processes. Another term
for self-regulation is _____. - ANS.... -homeostasis
In the nemonic King Philip did come over for gross spaghetti, Philip
corresponds to - ANS.... -Phylum
Aerobic organisms use oxygen as the __________ - ANS.... -Final electron
acceptor
Stromatolites contain the fossils of the first _____ cells. - ANS.... -
photoautotrophic
Which organelles are thought to have originated via endosymbiosis? -
ANS.... -Mitochondria and Chloroplasts
The first cells on earth were prokaryotic, _____ and _____. - ANS.... -
heterotrophic, anaerobic
Living organisms possess a degree of organization and complexity in their
structure. This refers to the life characteristic of _____. - ANS.... -Order
,The unity of life is illustrated by the idea that all organisms - ANS.... -
evolved from a single common ancestor
Where is the majority of ATP produced in a eukaryotic cell? - ANS.... -
Mitochondria
Number the following events to indicate the order in which they occurred. -
ANS.... -1.
Animals first appeared on Earth
2.
The Cambrian Explosion
3.
The Permian Extinction
4.
Dinosaurs first appeared on Earth
5.
Mammals first appeared on Earth
6.
The Cretaceous Paleogene Extinction
When mitochondria became part of the eukaryotic cell, the cell became
"rich" with ATP. This lead to cell specialization. Cell specialization allowed -
ANS.... -The evolution of multicellular organisms
To which kingdom would a multicellular, eukaryotic, photosynthetic
organism belong? - ANS.... -plantae
,Which pair of organelles is responsible for energy supply to eukaryotic
cells? - ANS.... -chloroplasts and mitochondria
Which is the highest level in the taxonomic organization? - ANS.... -Domain
Which of the following is TRUE of ALL organisms? - ANS.... -They obtain
nutrients
The _____ in Earth's atomosphere is responsible for the formation of the
ozone layer. - ANS.... -oxygen
Humans sweat when the temperature gets hot so that they can cool
themselves. [Blank1] - ANS.... -Homeostasis
The Permian Extinction occurred after the Cambrian Explosion. - ANS.... -
True
The hereditary material that is present in all cells is - ANS.... -DNA.
Which is a difference between prokaryotes and eukaryotes? - ANS.... -
Prokaryotes have a nucleoid, eukaryotes have a nucleus.
The Bacteria and Eukarya domains are distinguished by - ANS.... -the
absence or presence of organelles including a nucleus.
first eukaryotic cells - ANS.... -Proterozoic
the first cells - ANS.... -Archean
, oxygen entered the atmosphere - ANS.... -Proterozoic
no life possible - ANS.... -Hadean
Cambrian Explosion - ANS.... -Phanerozoic
Ancient members of all Eukarya kingdoms appeared. - ANS.... -Proterozoic
An extremophile would most likely be found - ANS.... -in water from a hot
spring
"Scientific names" contain the ___________ and the ___________ -
ANS.... -Genus and species
The main difference between an autotroph and a heterotroph is - ANS.... -
how they obtain energy.
The smallest unit of life is the ________. [Blank1] - ANS.... -Cell
A simple food chain begins with the energy of the Sun. - ANS.... -True
A ________ is a portion of DNA that resides at a particular locus or site on
a chromosome and encodes a particular function. [Blank1] - ANS.... -Gene
Mitochondria are - ANS.... -aerobic and produce ATP.