BIOLOGY STUDENTS CLICK MY QUESTION PLEASE
Three plants were grown to study the effects of nitrate and magnesium ion deficiency on their development. They were kept in the same conditions, except for the types of minerals supplied.
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Plant A was provided with all essential minerals.
Plant B was given all minerals except nitrate ions. Plant C was given all minerals except magnesium ions. State three conditions, other than water and the concentration of mineral ions, that would need to be kept the same for all the plants, in order to make the investigation a fair test
Answers
Answer:
Periods of light-timeTemperatureSubstrate/Soil typeExplanation:
Controlled variable: Variables that are controlled and have no influence on the results of the experiment. These variables do not affect the change in the dependent variable values.
These variables must be the same for all the subjects or groups (control and experimental). In the case of plants, controlled variables are probably those needed by the plants to correct development.
All plants should be exposed to the same period of light-time and the same temperature. Also, the substrate or soil where the plants are growing should be the same.
Related Questions
2. Which of these practices helps cut down on waste?
A) O Reduce
B) O Reuse
C) O Recycle
DO All of the above
Answers
Reduce, reuse, and recycle all of these practices helps cut down on waste, Reducing the quantity of garbage we generate is made easier by following the three R's of reduce, reuse, and recycle, hence option D is correct.
How to reduce waste?They preserve energy, landfill space, and natural resources. Additionally, communities need less land and money to dispose of waste in landfills when they follow the three R's.
Reduce refers to reducing the quantity of waste we produce. Finding new uses for items that would have otherwise been thrown out is meant by reuse.
Recycling refers to the process of converting waste materials, such as plastic milk bottles, into new, valuable materials (like picnic benches, playground equipment, and recycling bins).
Therefore, option D is correct.
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please help me i will give brainleist!!
Answers
There are very significant things that need to happen in order for Red Beryl to form.
You would need 1) a volcano rich in topaz rhyolite
2) the lava to cool exactly not too quickly or too slowly. Which these are very specific conditions.
Hope this helps. :))
Which type of feather gives the bird its color?
Select one:
a.
contour
b.
down
c.
flight
d.
barb
Answers
Answer:
d
Explanation:
Answer:
a.contour
Explanation:
what are the differences between RNA and DNA
Answers
Answer:
The difference between RNA and DNA is the sugar present in the molecules
Explanation:
In RNA,the sugar molecule present is Ribose while in DNA the sugar molecule present is Deoxyribose.
Hair color such as brown, black, or red is an example of a
Answers
Answer:
Explanation:
B | Bb
Bb| bb
that is the table or chart of how you get your hair color. it's an example of genetics (genes from your parents)
3. Why is it sometimes necessary to use a model that is "not to scale"?
Answers
And if the item is too big, you won’t be able to fit it in a small space; if you were to draw it or create it in 3D.
I hope this helps!
Sorry if the response is too short, try rewording if you need to :)
Select the correct answer.
Laura wants to import frozen red meat from Canada for her restaurant. However, the US government denied the import of frozen red meat
from Canada as it did not follow grades for trading terms for quality standards in food and processed food products. Which US regulatory
authority must have imposed a ban on these imports?
A.
the US Food and Drug Administration (FDA)
B.
National Shellfish Sanitation Program
C. food safety and nutrition
D.
US Department of Agriculture (USDA)
Reset
Next
Answers
Answer:
US Department of Agriculture (USDA)
Explanation:
plato :)
The US regulatory authority must have imposed a ban on these imports is the US Department of Agriculture (USDA). The correct option is D.
What is USDA?USDA is the US Department of Agriculture, is a department of health and agricultural food of the US. They check the quality of food material that is provided to the citizens, and they also improve the quality of the food and by using new techniques. To make the food more nutritional and less harmful, they improve the quality.
The checking of meat and all non-vegetarian products are comes under this department. They check the quality of the meat and all beef, and eggs. They saw if the meat is good for importing or not.
Laura wants to import frozen red meat for her restaurant. But the quality of meat was not good to feed the citizens that why the authority will stop it and the authority is US Department of Agriculture (USDA).
Thus, the correct option is D. US Department of Agriculture (USDA).
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help pleaseeeee and please don’t waste my time by saying that ydk :) ty
Answers
Answer:
1. Arsenic, benzene, formaldehyde, lead, and mercury are just a few of the more than 70 cancer-causing chemicals in cigarette smoke.
2.They work, for instance, to keep the airways clear of mucus and dirt, allowing us to breathe easily and without irritation. They also help propel sperm.
3.Spirometry measures how much air you can breathe in and out. It also measures how fast you can empty the air out of your lungs. Spirometry helps diagnose breathing problems such as asthma and COPD.
4. Tar causes cancer of the lungs, mouth and throat.
Q2) The function of cilia is to move water relative to the cell in a regular movement of the cilia. This process can either result in the cell moving through the water, typical for many single-celled organisms, or in moving water and its contents across the surface of the cell.
Q3) Lung volume measurement can be done in two ways:
The most accurate way is called body plethysmography. You sit in a clear airtight box that looks like a phone booth. ...
Lung volume can also be measured when you breathe nitrogen or helium gas through a tube for a certain period of time.
Q4) Tar contains most of the cancer-causing and other harmful chemicals found in tobacco smoke. When tobacco smoke is inhaled, the tar can form a sticky layer on the inside of the lungs. This damages the lungs and may lead to lung cancer, emphysema, or other lung problems.
it protect the internal organs and supports our body when we sit
Answers
Answer:
what is the question of this not understand
the process illustrated in the figure is called
Answers
The fusion of a sperm and egg to form a ________________________
Answers
Answer:
zygote
Explanation:
gamates fuse and create zygotes
Answer:
Zygote
Explanation:
The fusion of a sperm and egg to form a zygote. Hope it helps you !!
What complementary strand of DNA would be produced from the strand of.
DNA shown below?
TCG GA
A. ACG GT
B. AGC CT
C. TGC CT
O D. TGA CT
SUBMIT
Answers
Answer:
b.
Explanation:
[character limit pass]
Please help me solve this
Answers
Answer:
CATGGAT-----> GTACCTA
CGGTACA-----> GCCATGT
CGGTTAA-----> GCCAATT
TAAGGCC-----> ATTCCGG
ATTGCGT-----> TAACGCA
Explanation:
adenine always with thymine (A-T)
cytosine always with guanine (C-G)
Hope it helps! please mark me brainliest
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Which material maintains the digestive environment in the
stomach?
a strong bases
b weak bases
C strong acids
d weak acids
Answers
c. strong acids
Can someone give me some reasoning questions reagarding the topic " Cells and its organelles "
i want it as soon as possible please for practice
Answers
Answer:
So cells are the tiny circle looking things you can find all over your body. The organelles are the things you find inside the cells.
For example, the nucleus (a.k.a an organelle) is found inside of a cell.
Questions:
How many organelles do prokaryotic cells have?
How many organelles do eukaryotic cells have?
Why are organelles important?
PLEASE HELP I DONT UNDERSTAND
How does having genes on many chromosomes, rather than on just one chromosome, increase genetic variation among offspring?
Answers
Answer:
Genetic variation is increased by meiosis
Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. ... A gamete will end up with 23 chromosomes after meiosis, but independent assortment means that each gamete will have 1 of many different combinations of chromosomes
Explanation:
Due to the possibility of genetic material being recombined and shuffled during meiosis, having genes on several chromosomes as opposed to only one chromosome enhances genetic variety among kids.
What is genetic variation among offspring?At locations known as chiasma, the chromosomes overlap. The chromosomes split and reunite at each chiasma, exchanging part of their genes in the process. Genetic diversity comes from this recombination.
The chromosomes align in pairs and cross over during the meiotic process to exchange genetic material. This process results in novel gene pairings on the chromosomes, which can result in the birth of kids with distinctive combinations of features.
Therefore, the possibility of genetic material being recombined and shuffled during meiosis increases genetic variation among offspring.
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Which group of organisms evolved first?
Select one:
a.
fish
b.
reptiles
c.
amphibians
d.
mammals
Answers
Answer: c or a because they are water animals
Explanation:
Answer:
A - Fish; (took the test)
Explanation:
Fish evolved in the world's oceans more than 100 million years before reptiles, amphibians, or mammals
only plutonium and botulism toxin are more deadly than what
Answers
Answer:
As of 2003, there has yet to be a single human death officially attributed to plutonium exposure. Naturally-occurring radium is about 200 times more radiotoxic than plutonium, and some organic toxins like Botulism toxin are billions of times more toxic than plutonium.
In this lab, the only test that turned out positive was for
Answers
Answer:
lipids
Explanation:
edge2021
Answer:
lipids.
Explanation:
why it is so important for the body to be protected against viral pathogens?
Answers
Answer:
Certain viral pathogens can lead to death. Viruses like Human Immunodeficiency Viruses (HIV) are not considered lethal on their own but lower your body's ability to fight infections, and over time cause Acquired Immunodeficiency Syndrome (AIDS). If infected by this virus you could be killed by the common cold. That is why it is important to be protected against viral pathogens.
Explanation:
Scientists use restriction ________ to
"clip" DNA for use in gene therapy.
-0)
cutters
enzymes
Answers
Answer: enzymes (B)
Explanation: just took the quiz on usa test prep!
Eknwnwnenenenenebrbrbrbrbbrbrbrbrbebrbrbbebebebwbebebebebebw
Answers
The answer is:
b
step by step
when the body removes carbon dioxide bu the way of respiratory system what happens to the ph of blood
Answers
the more carbon dioxide in the blood the more acidic it will be. so when it is removed the acidity will decrease.
so the pH increases
When the body removes carbon dioxide, the PH of blood increases
The body control the blood's acid-base balance through different ways. The organs used for this control is lung, kidney and buffer systems.
The lung can control blood pH through the release of carbon dioxide. Carbon dioxide acidic and its accumulation in the body leads to an increase in PH.
When the blood PH is too low (i.e. acidic), the body increases breathing so as to expel(remove) more carbon dioxide thereby increasing the PH of the blood.
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Regulation of body temperature
Pe Gabey
Corrective mechanism
Detected by the
brain
Increases
Blood vessel
Hairs lie
sweating
urine
decreases
Normal Temperature (37°C)
Normal Temperature (37°C)
Corrective mechanism
L
Decreases
increases
Betected by the
brain
Blood vessel
Hairs stand
sweating
urine
Answers
Answer: Our internal body temperature is regulated by a part of our brain called the hypothalamus. The hypothalamus checks our current temperature and compares it with the normal temperature of about 37°C. If our temperature is too low, the hypothalamus makes sure that the body generates and maintains heat
HOPE THIS HELPS
An offspring has genetic information from 2 parents what do we know about the offspring?
Group of answer choices
It is an animal
It was produced through sexual reproduction
It is a bacterium
It was produced through asexual reproduction
Answers
Answer:
It was Produced through Sexual Reproduction
Explanation:
This is true because when two members of a species reproduce through meosis the offspring inherents half of the dna from each parent
Answer:
It was produced through sexual reproduction
Explanation:
trust me bro
A scientist discovers what he thinks is a cell. Which question about this new discovery should the scientist answer first to determine if
it is a cell?
A) How long does it live?
B) Can it reproduce itself?
C) How large can it grow?
D) Does it contain DNA?
Answers
Answer: B
Explanation:
:-) :-) :-) :-) :-) :-) :-) :-) :-)
The question is in the picture below Please help
Answers
Answer:
BRYAN!!! stop cheating this is your teacher if you are caught again you will be getting a message home and a suspension
Explanation:
Which of the following is a way that bacteria cause disease?
Answers
Answer:
Enter your immune systems it can also be in the ffood you eat
Explanation:
Was the path to discovery of the theory evolution easy or difficult?
Answers
Answer: difficult ...
13. Hello can someone please help me with this question ?
Answers
Answer:
stomata please mark me brainlest it's right.
Explanation:
