Bio-signs or signatures are

tell-tale signs of life such as presence of gas

The term "Skeletons" in the article about Enceledus refers to

evaporated geyser-flung saltwater remains

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Intro--Science Life Water!

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Biology Level One's first test of the year includes basics of science, characteristics of life and properties of water. #biointro

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Questions 20

Answers

1
Substances with a ph of 10 are:
acidic
neutral
basic
explosive
2
What is turbidity?
yeast was the mystery matter
amount of balloon inflation
clarity of a liquid
foaminess
3
A substance that maintains pH in a narrow range is . . .
heat capacity
adhesion
buffer
cohesion
4
Bio-signs or signatures are
tell-tale signs of life such as presence of gas
rings around planets that contain oxygen
large metal plates warning to yield or merge
skull and crossbones warning of danger
5
The sum of all chemical reactions including those necessary for the extraction of energy is:
homeostasis
metabolism
evolution
astrobiology
6
In the life lab, what were the contents of the control group test tube?
yeast
sand
mystery matter
meal worms
7
Studying life on other planets and moons is
extracurricular
astrobiology
extraterrestrial
astrology
8
Maintaining internal stability even in the face of changing external conditions is...
metabolism
turbidity
homeostasis
ratchet
9
Dependent variables in an experiment. . .
are unimportant (poor choice)
are manipulated (set up of lab)
are placebos (sugar pills)
are measured (results or data)
10
Biology is the ______________ of ______________:
fascination with; animals
science; plants
worship; life
science; life
11
The R/S part of the characteristics of life is for:
resists suntanning
respond to stimuli
refrain from swimming
remains still
12
Which of the following is NOT a characteristic of life?
movement
reproduces
requires water
metabolism
13
Usually solids _____ in liquids of that same substance but ice ________:
sinks; floats
floats; sinks
explodes; implodes
implodes; explodes
14
The bonds connecting water molecules to other water molecules are. . .
polar covalent
hydrogen bonds
ionic
ratchet
15
Enceladus is a
an exoplanet in a different galaxy
planet in our solar system beyond Pluto
a twin moon of Mercury
a moon of Saturn
16
The term "Skeletons" in the article about Enceledus refers to
headless frogs remains found in warm vernal ponds
evaporated geyser-flung saltwater remains
rings that surround the silicate crust
fossilized bacterial walls dug from hydrothermal lava pits
17
The term "habitable" means. . .
able to support life
reformed turbidity clouds
containing low levels of toxins
forming a habit
18
A substance sticking to a different substance is . . .
adhesion
heat capacity
surface tension
cohesion
19
The bonds connecting the parts within a water molecule are. . .
ionic
polar covalent
hydrogen bonds
ratchet
20
True experiments must have at least two groups; an experimental group and a ___________group
control
independent
dependent
metabolic

Intro--Science Life Water! Flashcards | StudBud