Answer:
Control group - the plant group which has not received the fertilizers treatment.
Experimental group- the groups treated with different varieties of fertilizers.
Independent variable- amount of water and fertilizers
Dependent variable- growth of plants
Explanation:
A scientific experiment is performed in a way that the experimental samples are classified into the control and experimental groups. Also, the experiment involves various variables to be studied which can be classified as an independent variable and dependent variable.
In the given question, the experimental samples are:
1. Control group- The samples which are not provided with the variable being studied like the experiment is performed to test the effect of fertilizers and "the plant group which has not received the fertilizers treatment" can be considered the control group.
2. Experimental group- the samples in which the variable to be studied are provided with that is "the groups treated with different varieties of fertilizers."
In the given question, the variables are:
1. Independent variable- the variable which can be changed or modified or can change on their own like "amount of water and fertilizers" in the experiment.
2. Dependent variable- the variable which is being tested, can be measured and is dependent on an independent variable like the " growth of plants" in the experiment.
During the last century, both global temperatures and men’s average height have increased. Do these correlated trends mean that the increase in men’s height caused the increase in global temperature? yes ___ no ___ Explain why or why not.
Imagine the grasshoppers population was gone. What would happen to the black and white bird population?
Answer:
The black and yellow bird population would begin to starve and would be forced to find alternative food, or die off. This would then send ripples through the food web, causing almost every species to be effected by the grasshoppers being gone.
PLZ ANSWER FAST!!
Which of these is an example of genetic modification:
a. Mapping the genome of the giant squid
b. Comparing the genes of children to their parents
c. Getting a flu shot
d. Adding a gene for mold resistance to corn DNA
Answer
D, genetic modification is a technique to change the characteristics of a plant, animal or micro-organism by transferring a piece of DNA from one organism to a different organism.
Explanation:
(mark as brainliest please)
Changes in genetic data lead to gene modification. Adding a gene for mold resistance to corn DNA is an example of genetic modification. option D is the correct answer.
What is genetic modification?
Genetic modification is a process in which the genes of an organism are modified. This can be done by base insertion or deletion or by any other environmental factor. Genetic modification can be done artificially. CRISPR-Cas9, gene editing, etc. are some examples.
This is done to get more productivity in crops, to reverse a genetic disease, etc. An example is adding a gene for mold resistance to corn DNA. Due to this gene modification, the corn will produce some proteins that will protect it from mold attack. Other options are not correct for the statement, as there is no change in gene activity.
Hence, the correct option is to add a gene for mold resistance to the corn. Option D is the correct answer.
To learn more about genetic modification, refer to the following link:
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Are people producers or consumers? Explain your answer.
Answer:
People are consumers because they can't produce their own foods so they eat foods made by other living things.
Explanation:
During cellular respiration, which of the following is equal to the total number of carbon, hydrogen, and oxygen atoms in water and carbon dioxide?
Number of carbon, hydrogen, and oxygen atoms in glucose
Number of carbon, hydrogen, and oxygen atoms in oxygen gas
Total number of carbon, hydrogen, and oxygen atoms in glucose and oxygen
Total number of carbon, hydrogen, and oxygen atoms in hydrogen gas and oxygen
Answer:
number of carbon hydrogen and oxygen atoms in oxygen gas
Explanation:
1-True or False: Human activities such as nitrogen fertilizer can upset the balance of the nitrogen cycle.
True
False
Answer:
True because it disturbs the balance of the soil.
Which is NOT an example of a natural resource? A- Gold B- Oil C- Wood or D- Buildings
Answer:
D. Buildings
Explanation:
Buildings are man made.
Answer:D
Explanation: Man makes building you can't find it naturally because they're built.
Carbon is an organic element found in all life forms. Which of the following
occurs through the process of breaking down carbon-based molecules?
Water molecules are transferred through the body.
Elimination of waste products occurs.
Energy needed for life functions is released
Absorbing of oxygen through pore occurs.
Answer:
The third option Energy for life functions is released
Explanation:
What causes blood pressure?
A. Cholesterol in the blood
B. Stress that exercises puts on heart muscles
C. Removal of oxygen from the blood
D. Contraction of the ventricles in the heart
Answer:
I think A is the Answer.
Explanation:
Higher blood pressures is caused by mental and physical stress that causes one to use their muscles and internal organs to a larger degree.
A species can develop genetic diversity______
A. Immediately
B. over a short period of time
C. over a long period of time
D. over any penod of time
Please help!! I am doing unit test! Should give 40 points!! Please help!!!!
Answer:
C. over a long period of time
Explanation:
Indicate whether or not the following functions are performed by the excretory system.
____excreting waste materials
____excreting blood
____maintaining pH balance
____maintaining body temperature
____maintaining salt balance
____maintaining hormone levels
____maintaining water balance
Answer:
1. yes
2. no
3. yes
4. yes
5. yes
6. no
7. yes
Only excreting blood is the function that is not performed by the excretory system.
What do you mean by the Excretory system?
The excretory system may be defined as the system that consists of a pair of kidneys, ureters, and urinary bladder. It removes wastes from the body.
Excreting waste materials, maintaining pH balance, maintaining body temperature, maintaining salt balance, maintaining hormone levels (aldosterone), and maintaining water balance are all the functions that are performed by the excretory system.
Therefore, only excreting blood is the function that is not performed by the excretory system.
To learn more about the Excretory system, refer to the link:
https://brainly.com/question/1001081
Why should the United States be concerned about air pollution in china
Answer:
The United States should be concerned because many of the things they have is manufactured or made in China . Some things like food or things that could be affected by germs or pollution could affect the users of it and make them sick.
Answer:
c. wind carries air pollution
Explanation:
Please answer both questions. Pretty simple. Extra points and brainiest will be given!!!!!
Answer:
1. water corrodes the soil and soil is a non renewable resource that needs to be conserved
2. renewable
Explanation:
if anyone can double check I am right, please do! I am not exactly sure of the first one but it seems to be right to the best of my knowledge
water can be classed as both a non-renewable and renewable resource which makes this question very confusing! sorry if I got it wrong x
The United States _____.
sent the first man into space
sent the first artificial satellite into space
launched the first space station, called Skylab
was the first to send man to the moon
HELP ASP
Answer:obviously they sent the first man into space
Explanation:
Which species' DNA is most similar
to the DNA of the toothed whale?
Answer:
Baleen Whale
Explanation:
Answer: Sperm Whale
Explanation:
They found that the DNA sequence of the sperm whale and pygmy sperm whale were more closely related to the baleen whales than to other toothed whales and dolphins. The study also showed that the beaked whale (which has only a few teeth) is only distantly related to any other whale or dolphin. Stated in science article by Koen De Smet. Not plagarized. Hope this will help you understand.
Which of the following statements are not true of carbohydrates?
A. Triglycerides are the most common type.
B. Monosacharrides, disacharrides, and polysacharrides are the most common types.
C. They are the most readily available source of energy for organisms.
D. Certain carbohydrates are enzymes or catalysts.
Answer:
this is very helpful to you
Explanation:
thank you
What is the cause of Angelman Syndrome?
a) A mutation that occurs randomly after birth or due to a viral infection in the mother during pregnancy.
b) The shutting off of the paternal chromosome and the deletion on Chromosome 15 from the mother.
c) The shutting off of the maternal chromosome and the deletion on Chromosome 15 from the father.
d) A large deletion of chromosome 15 that is inherited from each parent.
Answer:
Angelman syndrome is caused by a genetic mutation on chromosome 15.
Explanation:
Angelman syndrome is caused by a genetic mutation on chromosome 15. The name of this gene is UBE3A. Normally, people inherit one copy of the gene from each parent, and both copies become active in many areas in the body. Angelman syndrome occurs when only one copy of the gene is active in certain areas of the brain.
Skin color and height are polygenic traits which means
many genes code for one trait
one gene codes for each trait
Answer:
Many genes code for one trait
Explanation:
Poly >> Many
Because the trees that produce the sap to make rubber need to be cut down to make it, rubber is considered a nonrenewable resource.
TRUE
FALSE
Please help me!!
Answer: false
Explanation:
The raw material of making rubber products is the natural latex we collect from the rubber tree. Therefore, the answer is Yes. The rubber is a renewable resource. What's more, most of rubber products are made by reclaimed rubber.Hope this helps!
why do animals and plants need nitrogen
Answer:
They need Nitrogen to make Amino acid, DNA but the nitrogen in the atmosphere can't be used directly. Some nitrogen fixing bacteria fix it then it is able to use for plants and animals.
hope it helps!
Answer:
Plants and Animals need Nirogen and its Sufficent
Explanation:
Plants need Nitrogen especially Crops because they give protein with the help of nitrogen by the help of Rhizobium Bacteria.
With This Protein, Animals ( Herbivores) eat this for energy which contains nitrogen
List eight factors that contribute to desertification.
Answer:
include urbanization, climate change, overuse of groundwater, deforestation, natural disasters, and tillage practices in agriculture that place soils more vulnerable to wind.
Explanation:
PLEASE HELP!! Would you expect to find many fluorescent organisms in the very deep ocean? Why or why not?
Answer:
Yes
Explanation:
many deep sea animals use bioluminecense to communicate, lure in prey, and defend against predators.
Write about the following words using the format provided ( state if term is know by another name or expression; state its composition; state its function; state its location; state its significance )
Example: Cell membrane - ( Plasma Membrane; Phospholipid bilayer...... )
Words: Cell membrane, nucleus, chromatin, nuclear envelope, nuclear pore, nucleolus, cytoplasm, mitochondrion, ribosome, endoplasmic reticulum, golgi complex, vacuole, lysosome, centriol, cell wall, plastid, chloroplast, chromoplast, leucoplast
sorry :(
Explanation:
ASAP WILL GIVE BRAINLIEST
The image below shows how wolves and dogs compare to some other animals in the levels of classification.
Based on the chart, how are fish and dogs related?
They belong to the same kingdom but different phyla.
They belong to the same phylum but different classes.
They belong to the same kingdom and class.
They belong to the same phylum and class.
Answer:
B.
Explanation:
Answer:
Was it b?
Explanation:
Morning glories are flowering vines that will climb up a trellis or other support by wrapping tendrils around it. What kind of tropism causes the
morning glories to twine around the support this way?
A. phototropism, because the light pulls the morning glories upwards
O
B. gravitropism, because gravity helps the morning glories orient themselves in space
O
c. thigmotropism, because the morning glories twine around the support when they touch it
D. nutrotropism, because the curliness of the morning glories depends on the nutrients in the soil
I think the answer should be c.
Helpp !
Which statement best describes Mendel's law of dominance?
O
A. Each parent of an offspring contributes two factors for each of the
offspring's traits.
B. The separation of two factors for one trait will always affect the
separation of another trait's factors.
O
C. Inherited traits are controlled by two factors that separate during
reproduction.
D. Only one of the two factors that control a trait is expressed when
both types of factors are present.
Only one of the two factors that control a trait is expressed when both types of factors are present best describes Mendel's law of dominance. Thus option D is correct.
what is Mendel's law?
According to Mendel’s Law of Dominance When an organism is mixture of heterogeneous trait, it expresses allele which are dominant, here the dominant trait always masks the recessive trait.
The trait is present in the form of two allele and one allele is dominant over the other allele which is recessive.
The dominant allele contributes exclusively to the phenotype of the offspring and Dominance can also be described as when one of the two alleles is non-functional means it does not produce a functional protein.
The recessive trait will be expressed only when both the allele are present in homozygous form from both parents.
Thus option D is correct.
Learn more about Mendel's law, here:
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PLEASE HELP I WILL BE GIVING THE BRAINLIEST AND 15 POINTS!!!!!!!!
Liam knew that all living things have common characteristics. His new baby brother made him think about how different all the types of living things were. Which of the following is not a common characteristic shared by all living things?
A. made of a cell or cells
B. made of similar chemicals
C. respond to surroundings
D. spontaneously generate
Answer:
Option D) - Spontaneously generate.
Answer:
Spontaneously generate
Explanation:
all living things have cells, are similar chemically (like have water) and respond to surroundings.
Spontaneous generation refers to an obsolete body of thought on the ordinary formation of living organisms without descent from similar organisms. The theory of spontaneous generation held that living creatures could arise from nonliving matter and that such processes were commonplace and regular.
According to “Past Climate Changes on Earth,” what changes to the atmosphere caused temperatures to increase, making the Eocene such a warm time in Earth’s history?
Answer:
The most important factor was the accumulation of greenhouse gases, especially methane and carbon dioxide.
Explanation:
The Eocene climate began with warming climate at 56 million years ago (Mya) and finalized at around 49 Mya ago. It is believed that during this period the greenhouse gases increased the temperature on the Earth's surface. This hypothesis is supported by evidence that indicates the melting of the ice cap in the poles.
What kind of energy is this?
The iron you used to iron your clothes.
Answer:
conduction
Explanation
conduction energy is through touching the object
Need help with #6 please:)
Answer:
high porosity
you need high porosity and high permeability for have an aquifer, which would made the water flow.
