Amazon
Avaya
Cisco
CompTIA
CrowdStrike
EC-Council
EXIN
Fortinet
Google
ISC
ISC2
ITIL
Juniper
Microsoft
NVIDIA
Okta
Palo Alto Networks
Salesforce
SAP
ServiceNow
All Vendors
  1. Home
  2. Test Prep
  3. CLEP Science and Mathematics

Test Prep CLEP Science and Mathematics Exam (page: 18)
Test Prep CLEP Science and Mathematics: Biology, Calculus, Chemistry, College Algebra & Mathematics, Precalculus, Natural Sciences
Updated on: 29-Mar-2026

Viewing Page 18 of 103
CLEP Science and Mathematics PDF 494 Questions

In an aquatic environment, oxygen concentration depends on chemical and physical factors and is greatly affected by many biological processes. These is much less dissolved oxygen (DO) in aquatic environments than in dry air. In most aquatic environments, there are only 5 to 10 mL of dissolved oxygen in a liter of water. Chemical and physical factors, such as salinity, pH, and especially temperature, can affect the DO concentration and distribution. An experiment was done to study the effect of different salinity levels on DO in water of varying temperatures. The results are below. Salinity is expressed in parts per thousand (ppt) and is the content of dissolved salt in water.


The results of the experiment suggest that at salinities of greater than 30 ppt, it is likely that

  1. dissolved oxygen levels would increase
  2. water temperature would increase
  3. aquatic organisms would begin to die
  4. there would be no change in dissolved oxygen
  5. the amount of dissolved oxygen would decrease

Answer(s): E

Explanation:

Although the graph shows results only for salinities ranging from 0 ppt to 30 ppt, one could extrapolate that salinities of greater than 30 ppt would show curves on the graph lower than the curve of 30 ppt. In other words, as salinity increases, dissolved oxygen would get lower and lower.



In an aquatic environment, oxygen concentration depends on chemical and physical factors and is greatly affected by many biological processes. These is much less dissolved oxygen (DO) in aquatic environments than in dry air. In most aquatic environments, there are only 5 to 10 mL of dissolved oxygen in a liter of water. Chemical and physical factors, such as salinity, pH, and especially temperature, can affect the DO concentration and distribution. An experiment was done to study the effect of different salinity levels on DO in water of varying temperatures. The results are below. Salinity is expressed in parts per thousand (ppt) and is the content of dissolved salt in water.




The oxygen that is dissolved in the water is used by aquatic organisms for

  1. photosynthesis
  2. cellular respiration
  3. digestion
  4. dehydration synthesis
  5. chemosynthesis

Answer(s): B

Explanation:

The sole function of oxygen is to power the mitochondria so that they can produce ATP via cell respiration.



Twenty-five ficus plants were placed in each of four closed containers and then exposed to light of specific colors as shown in the data table. All other environmental conditions were held constant for a period of 3 days. At the beginning of the investigation, the quantity of CO2 present in each closed container was 220 cubic centimeters. The data table shows the amount of CO2 remaining in each container at the end of 3 days.


The color of light that seems best for photosynthesis in ficus plants is

  1. blue
  2. red
  3. green
  4. orange
  5. All colors tested were equivalent.

Answer(s): B

Explanation:

Because the amount of carbon dioxide used is an indicator of the rate of photosynthesis, the plants in the red-light group show the greatest rate of photosynthesis. Carbon dioxide levels began at 220 cm3 at the start of the experiment, and they dropped to 50 cm3 in the red-light group. No other group used up as much carbon dioxide.



Twenty-five ficus plants were placed in each of four closed containers and then exposed to light of specific colors as shown in the data table. All other environmental conditions were held constant for a period of 3 days. At the beginning of the investigation, the quantity of CO2 present in each closed container was 220 cubic centimeters. The data table shows the amount of CO2 remaining in each container at the end of 3 days.



The one color of light missing from the experimental data that would provide a suitable control group is

  1. orange
  2. indigo
  3. violet
  4. white
  5. yellow

Answer(s): D

Explanation:

While light, which is made up of all of the colors of the rainbow (ROYGBIV), is missing. Without a white light group, it is hard to have a baseline of how a "normal," control plant population might do in regular, everyday light.



Twenty-five ficus plants were placed in each of four closed containers and then exposed to light of specific colors as shown in the data table. All other environmental conditions were held constant for a period of 3 days. At the beginning of the investigation, the quantity of CO2 present in each closed container was 220 cubic centimeters. The data table shows the amount of CO2 remaining in each container at the end of 3 days.



A graph plotted of the experimental results would most closely resemble which of the following?


  1. Option A
  2. Option B
  3. Option C
  4. Option D
  5. Option E

Answer(s): E

Explanation:

The proper plot shows the independent variable (light color) on the x-axis plotted against the dependent variable (carbon dioxide concentration remaining) on the v- axis. The best type of graph to use is a histogram because you have collected data for specific colors of light only. You have no information about the other colors or carbon dioxide use at times other than at the very end of the experiment. Thus, using a line graph forces you to make up information about other colors of light or time periods that you do not have.



Viewing Page 18 of 103



Share your comments for Test Prep CLEP Science and Mathematics exam with other users:

Isak 7/6/2023 3:21:00 AM

i need it very much please share it in the fastest time.
Anonymous


Maria 6/23/2023 11:40:00 AM

correct answer is d for student.java program
IRELAND


Nagendra Pedipina 7/12/2023 9:10:00 AM

q:37 c is correct
INDIA


John 9/16/2023 9:37:00 PM

q6 exam topic: terramearth, c: correct answer: copy 1petabyte to encrypted usb device ???
GERMANY


SAM 12/4/2023 12:56:00 AM

explained answers
INDIA


Andy 12/26/2023 9:35:00 PM

plan to take theaws certified developer - associate dva-c02 in the next few weeks
SINGAPORE


siva 5/17/2023 12:32:00 AM

very helpfull
Anonymous


mouna 9/27/2023 8:53:00 AM

good questions
Anonymous


Bhavya 9/12/2023 7:18:00 AM

help to practice csa exam
Anonymous


Malik 9/28/2023 1:09:00 PM

nice tip and well documented
Anonymous


rodrigo 6/22/2023 7:55:00 AM

i need the exam
Anonymous


Dan 6/29/2023 1:53:00 PM

please upload
Anonymous


Ale M 11/22/2023 6:38:00 PM

prepping for fsc exam
AUSTRALIA


ahmad hassan 9/6/2023 3:26:00 AM

pd1 with great experience
Anonymous


Žarko 9/5/2023 3:35:00 AM

@t it seems like azure service bus message quesues could be the best solution
UNITED KINGDOM


Shiji 10/15/2023 1:08:00 PM

helpful to check your understanding.
INDIA


Da Costa 8/27/2023 11:43:00 AM

question 128 the answer should be static not auto
Anonymous


bot 7/26/2023 6:45:00 PM

more comments here
UNITED STATES


Kaleemullah 12/31/2023 1:35:00 AM

great support to appear for exams
Anonymous


Bsmaind 8/20/2023 9:26:00 AM

useful dumps
Anonymous


Blessious Phiri 8/13/2023 8:37:00 AM

making progress
Anonymous


Nabla 9/17/2023 10:20:00 AM

q31 answer should be d i think
FRANCE


vladputin 7/20/2023 5:00:00 AM

is this real?
UNITED STATES


Nick W 9/29/2023 7:32:00 AM

q10: c and f are also true. q11: this is outdated. you no longer need ownership on a pipe to operate it
Anonymous


Naveed 8/28/2023 2:48:00 AM

good questions with simple explanation
UNITED STATES


cert 9/24/2023 4:53:00 PM

admin guide (windows) respond to malicious causality chains. when the cortex xdr agent identifies a remote network connection that attempts to perform malicious activity—such as encrypting endpoint files—the agent can automatically block the ip address to close all existing communication and block new connections from this ip address to the endpoint. when cortex xdrblocks an ip address per endpoint, that address remains blocked throughout all agent profiles and policies, including any host-firewall policy rules. you can view the list of all blocked ip addresses per endpoint from the action center, as well as unblock them to re-enable communication as appropriate. this module is supported with cortex xdr agent 7.3.0 and later. select the action mode to take when the cortex xdr agent detects remote malicious causality chains: enabled (default)—terminate connection and block ip address of the remote connection. disabled—do not block remote ip addresses. to allow specific and known s
Anonymous


Yves 8/29/2023 8:46:00 PM

very inciting
Anonymous


Miguel 10/16/2023 11:18:00 AM

question 5, it seems a instead of d, because: - care plan = case - patient = person account - product = product2;
SPAIN


Byset 9/25/2023 12:49:00 AM

it look like real one
Anonymous


Debabrata Das 8/28/2023 8:42:00 AM

i am taking oracle fcc certification test next two days, pls share question dumps
Anonymous


nITA KALE 8/22/2023 1:57:00 AM

i need dumps
Anonymous


CV 9/9/2023 1:54:00 PM

its time to comptia sec+
GREECE


SkepticReader 8/1/2023 8:51:00 AM

question 35 has an answer for a different question. i believe the answer is "a" because it shut off the firewall. "0" in registry data means that its false (aka off).
UNITED STATES


Nabin 10/16/2023 4:58:00 AM

helpful content
MALAYSIA