Answer:
birds have a digestive system that includes gizzards in which the food goes to get crushed to smaller peices as humans do not
Explanation:
Some argue that hydroelectric power should be used to generate more energy
for the United States. Which argument could be used to dispute this idea?
O A. It can only be used in areas with specific kinds of rivers.
O B. It releases more greenhouse gases than most sources.
O C. It uses too many nonrenewable resources.
D. It releases toxic chemicals into the atmosphere.
The use of hydroelectric power in the United States is limited because it can only be used in areas with specific kinds of rivers.
What is hydroelectric power?Hydroelectric power is electric power which is generated from water.
The kinetic energy of motion of water is converted to electrical energy when the turbines of a dynamo are turned by the moving water.
Hydroelectric power has limited application because it requires the area to have large water bodies.
Therefore, the use of hydroelectric power in the United States is limited because it can only be used in areas with specific kinds of rivers.
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Write in complete sentences.
What is a food web?
Answer:
A food web consists of all the food chains in a single ecosystem. Each living thing in an ecosystem is part of multiple food chains. Each food chain is one possible path that energy and nutrients may take as they move through the ecosystem.
Explanation:
In the 1950s tall smokestacks for large factories were constructed and pollution was released higher in the atmosphere where winds were stronger. The motto during this time was "dilution is the solution to _______."
A: Motion
B: Pollution
C: Evelution
Answer:
Pollution
Explanation:
What is Dilution
Dilution is the process of decreasing the concentration of a stock solution by adding more solvent to the solution. The solvent added is usually the universal solvent, known as water.What is pollution
the addition of undesirable material into the environment as a result of human activities.What is motion
when an object changes in position over time relative to a reference point. speed.What is Evolution
Evolution is change in the heritable traits of biological populations over successive generations.Urban sprawl can lead to a chain reaction of problems as the human population of a region increases. Which of the following is a problem of urbanization that affects human health?
Lack of sufficient sewage facilities can lead to waterborne diseases.
More land is cleared for housing, businesses, and city services.
Too much cold air and dust in the air above cities.
Heavily paved cities and fewer trees add less heat to the atmosphere.
''Lack of sufficient sewage facilities can lead to waterborne diseases'' is a problem of urbanization that affects human health.
What is a problem of urbanization that affects human health?The problem of urbanization greatly affects human health because it provides a suitable environment for the growth of disease causing bacteria and viruses.
So we can conclude that ''Lack of sufficient sewage facilities can lead to waterborne diseases'' is a problem of urbanization that affects human health.
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So we can conclude that ''Lack of sufficient sewage facilities can lead to waterborne diseases'' is a problem of urbanization that affects human health.
How does fossils record help scientists observe changes in organism over time ?
As the world changes, plants and animals change with it. Aside from a few living fossils, the species we see today are very different from species that lived in the past.
What is the minimum age of a fossil?A living being that lived more than 11 thousand years ago is considered a fossil, that is, before the Holocene, which is the current geological epoch.
Ancient remains or evidence, but less than 11,000 years old, such as sambaquis, are classified as subfossils.
The dating of a fossil can be done based on the already known percentage of Carbon-14 (C14) in relation to Carbon-12 (C12) of living matter (without decomposition).
Thus, the fossil record can be used to show that organisms changed to meet new conditions.
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Ways in which the responses of mammals differ from flowering plants
5. Do some research to answer these questions: Who invented the metal detector? Why? What are its limitations?
“*•Pls help me!!!•*”
Answer:
Cold weather
Explanation:
Drought, large numbers of plants, and heavy wind are all factors which would cause the further spreading of wildfiresWildfires generally take place in hot, humid, and dry weatherHence, cold weather decreases the magnitude of the wildfireOption 3Answer:
Cold weather
Explanation:
I second the other person, thank you! Have a blessed day <3
Select the correct answer.
Which statement about energy is true?
A. Energy can't be created or destroyed.
OB.
OC.
O D.
Energy can't transform into different forms.
Organisms at the top of food chains have access to the most energy.
Energy can undergo transformations only in animals.
Answer:
c
Explanation:
Energy cannot be created or destroyed is true.
Still, stuck? Get 1-on-1 help from an expert tutor now.
Answer:
c
Explanation:
it is the correct answer I think
Students are the only ones that need to follow the lab safety rules. Students are the only ones that need to follow the lab safety rules. True False
FALSE
WHY?
BECAUSE IS NOT THE ONLY STUDENTS NEED TO FOLLOW THE LAB SAFETY RULES.
A zygote is best described as _____.
A. a complete set of chromosomes
B. a sperm rejected by a hardened egg
C. the first diploid cell after fertilization
D. an egg just before fertilization
Jake set up an experiment. He set two aquariums with five fish of the same type and size. Aquarium one was very small, only one cubic foot. Aquarium 2 was very large at 10 cubic feet. Each day the fish were fed the same amount of food and vitamins, at the end of 5 months Jake measured the fish by length. His results are shown in the bar graph above. What might be the question Jake is asking in his experiment?
A. What fish food cost the most?
B. What fish food makes fish grow faster?
C. Does aquarium size affect growth rate of fish?
D. What type of fish food do fish like the best?
Once identified the controlled, the independent, and the dependent variables, we can say the question is C. Does aquarium size affect the growth rate of fish?
What is the independent variable?
Refers to all the variables in an experiment that provoke a response in another variable.
An independent variable is the one that changes or is controlled and modified in the experiment to analyze how another variable responds to it.
It changes to analyze its effects on the dependent variable.
What is the dependent variable?Refers to the variable whose response depends on any change in the independent variable. Depending on how the independent variable is modified, the dependent variable changes.
What is the controlled variable?During an experiment, the controlled variables are kept constant. Unlike the independent variable, the controlled variables do not influence the results. These variables do not affect the response of the dependent variable.
In the exposed example,
the independent variable ⇒ Aquarium size ⇒ 1 cubic foot and 10 cubic feetthe controlled variable ⇒ food and vitaminsthe dependent variable ⇒ fishes growth.The question that Jake is asking in his experiment is Does aquarium size affect growth rate of fish? Option C.
Since he only needs to know how the size of the aquarium affects the animal's growth, he needs to keep constant other influencing variables such as food and vitamins. Otherwise, these other variables might also influence the results.
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no spams! only answer if u 100% know!
Answer:
Archaea
Explanation:
They live in harsh environments!
Hope this helps! ;-)
Explain what distruptive selection is
Answer:
"Disruptive selection is a type of natural selection that selects against the average individual in a population. The makeup of this type of population would show phenotypes (individuals with groups of traits) of both extremes but have very few individuals in the middle"
Explanation:
50 POINTS! Learnings and realizations about Removing Stains
What are your realizations in removing stains?
Explanation:
Stain removal is the process of removing a mark or spot left by one substance on a specific surface like a fabric. A solvent or detergent is generally used to conduct stain removal and many of these are available over the counter
If one strand of DNA is
AGC , the complementary (matching) strand of DNA would be
Answer:
GAT
hope it helps!
GUYS PLS HELP , 20 POINTS
Which of the following describes initial data analysis?
clear hypotheses about the data are tested
concerned with avoiding answering the original research question
no clear hypothesis is stated before analyzing the data, and the data is searched for models that describe the data well
analyses aimed at answering the research question are performed as well as any other relevant analysis needed to write the first draft of the research report
Answer:
no clear hypothesis is stated before analyzing the data, and the data is searched for models that describe the data well
this is the answer
Explain the levels of organization beyond our planet.
Answer:
there is not much the land and earth could be better-tooken care of
Explanation:
red went to the doctor because his body was not producing semen. Which part of Fred's body was most likely functioning incorrectly to cause this problem.
scrotum
glands
urinary bladder
Answer:
Glands
Explanation:
Prostate Gland
This walnut-sized gland surrounds a portion of the urethra and produces some of the fluid in semen.
Answer:
The answer would be testes.
Semen or seminal fluid refers to the organic fluid which contains spermatozoa.
The semen is produced by testes and associated reproductive glands such as seminal vesicles, prostate glands, and bulbourethral gland.
The testes and other glands are located mainly in the scrotum of the person.
Thus, the testes and other reproduc
Explanation:
thats the right answer
11. How many grams each of resorcinol and hexachloro-
phene should be used in preparing 2 pounds of an
acne ointment that is to contain 2% resorcinol and
0.25% of hexachlorophene?
12. How many milligrams of procaine hydrochloride
should be used in preparing 60 suppositories, each
weighing 2 grams and containing 1/4% of procaine
hydrochloride?
Answer:
7 grams
Explanation:
How many milligrams of procaine hydrochloride
should be used in preparing 60 suppositories, each
weighing 2 grams and containing 1/4% of procaine
hydrochloride?
All human proteins are constructed from
Example=98)
different amino acids. (GIVE A NUMBER ONLY-
Why is the cell theory a theory and not a law? (100 points)
The cell theory has not been tested enough by the scientific community.
The cell theory explains the natural world.
The cell theory describes the natural world.
The cell theory has not been accepted by the scientific community.
Answer:
Cell theory is a theory not a law because the cell theory does not have enough support to become a law. Cell theory is referred to as the history of scientific theory. All cells come from pre-existing cells and that is the basic unit reproduction and a basic unit of all organisms.
Explanation:
Hope it help you
Answer:
Option D
Explanation:
Most probable answer is D as Cell theory wasn't 100% correct .It required some corrections.So it hasn't proved itself enough to become a law of biological departmentThe threshold level for a
neuron to fire is a 10. What will happen if the stimulus to the neuron is 8?
Answer:
The neuron will not fire at all
Explanation:
The stems of a(an)
_____do not form wood.
Answer:
Maybe the answer is aloe Vera?
Surface weather map
Please help
Answer:
the file is below
Explanation:
Energy connection- Be able to identify an organism at each level of the
energy pyramid.
o Producers- What is their source of energy?
o Decomposers- What are they?
o Consumers
▪ Herbivores
▪ Carnivores
Omnivores
Scavengers
Tay-Sachs disease is an inherited disease that is caused by a recessive allele. If a man and his wife, who are both carriers, have three children, what is the probability of each of the following? Show your calculations and give your answers as fractions.
a) All their three children do not have the disease.
d) At least one child is phenotypically normal without the disease.
b) One or more of their three children have Tay-Sachs disease.
c) All three children have the Tay-Sachs disease.
b) One or more of their three children have Tay-Sachs disease.
37/64
a) All their three children do not have the disease.
27/64
(3/4)^3
c) All three children have the Tay-Sachs disease.
1/64
(1/4)^3
d) At least one child is phenotypically normal without the disease.
63/64
quizlet
It is necessary to have limitations in an environment because if not:
Traits from species would get crossed.
Water and shelter would be automatically created by extra species that are new.
The populations of the world would soon crowd one another out and make conditions unlivable.
The world would balance itself out without problems.
animals.
Plants would take over the space of animals
Best guess is "The populations of the world would soon crowd one another out and make conditions unlivable."
Brain is most active during which portion of sleep cycle
The Brain is most active during REM sleep portion of sleep cycle. This portion of sleep cycle usually occurs for two hours, and when monitored, it is discovered that brain activity is mostly dynamic at this stage.
What is REM sleep?REM stands for Rapid Eye Movement and this is a stage in the sleep cycle of mammals and birds characterized by random rapid movement of the eyes.
Basically, sleep is divided into four major stages which include
AwakeLightDeepREM sleepThe first three stages of sleep are regarded as Non-Rapid Eye movement (NREM) stages. The first three stages comprises of about 75% of the total sleep time.
This movement of the eyes is followed by minimal muscle tone throughout the body, and the higher probability of the sleeper to dream vividly.
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Is it B or D
Barbie sits on one end of a see-saw and Ken sits on the other. Barbie goes up in the air and Ken stays down on the ground. In order for Ken to make Barbie move down, he should
A)stand on the board.
B)push down on the board.
C)move towards the center.
D)move away from the center.
