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JCCC EVRN 124 Exam 3 Questions with Latest Update

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JCCC EVRN 124 Exam 3 Questions with Latest Update

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  • November 5, 2024
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JCCC EVRN 124 Exam 3 Questions with
Latest Update
Life on Earth exhibits both unity and diversity. The unity refers to the idea that ____. -
Answer-All species share the same underlying mechanisms for capturing and storing
energy between generations

Charles Darwin proposed that organisms ____ when he proposed his idea of evolution.
- Answer-Change with time to fit the physical and chemical environment

After millions of years of favorable adaptations, Pygmy seahorses ____. - Answer-Avoid
predation through camouflage

A spontaneous, inheritable change in an organism's genes is called a ____. - Answer-
Mutation

Beneficial inheritable structural or behavioral traits are known as ____. - Answer-
Adaptations

The process by which accumulated adaptations result in superficially similar animals
derived from different stock is called ____. - Answer-Convergent evolution

Most mutations have no obvious effect or are unfavorable, and the organisms
possessing them ____. - Answer-Are eliminated by other organisms

The term used to describe species that are remotely related, yet resemble each other in
shape because their traits were independently selected by environmental conditions
____. - Answer-Convergent evolution

Dolphins, penguins, ichthyosaurs have undergone ____ that gave them similar shapes
through adaptations that permitted rapid swimming. - Answer-Convergent evolution

Mass extinctions have occurred ____ in the last ____. - Answer-Five times; 450 million
years

What do prokaryotes lack? - Answer-A nucleus

The three domains of living things are the Eukarya, Bacteria, and ____. - Answer-
Archaea

Cells of the ____ domain are larger than those of the ____ domain. - Answer-Eukarya;
Bacteria

, Linnaeus was best known for his greatest contribution of ____. - Answer-Classification
system based on hierarchy, a grouping of objects by degrees of complexity, grade, or
class

Living organisms are ____, which differentiates them from nonliving organisms. -
Answer-Able to capture, store, and transmit energy

In photosynthesis, plants use the energy in sunlight to convert water and carbon dioxide
into ____. - Answer-Carbohydrates and oxygen

Light energy from the sun is trapped by ____ in primary producers and change into
chemical energy. - Answer-Chlorophyll

____ are responsible for the vast majority of the ocean's primary productivity. - Answer-
Phytoplankton

Consumers that eat primary producers are called ____. - Answer-Primary consumers

The organisms that make their own food are called ____. - Answer-Primary producers

Which of the following is an example of a primary producer? - Answer-Phytoplankton

Scientists can observe primary productivity in the ocean from space by measuring the
____. - Answer-Amount of chlorophyll in surface waters

Which wavelength of light penetrates to the greatest depth in ocean water? - Answer-
Blue

In ____, dissolved substances slowly spread out from regions of high concentrations to
regions of low concentration. - Answer-Diffusion

When the concentrations of dissolved substances in water on either side of a cell
membrane are the same, the situation is described as being ____. - Answer-Isotonic

The zone of ocean water where photosynthetic organisms have enough light to thrive is
called the ____. - Answer-Euphotic zone

Though it is difficult to generalize for the ocean as a whole, the bottom of the euphotic
zone is about ____ deep in mid-latitudes. - Answer-70 meters (230 feet)

A physical or biological necessity whose presence in inappropriate amounts limits the
normal action of an organism is known as a ____. - Answer-Limiting factor

The average pH of seawater is about ____. - Answer-8

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