Mary wanted to know if seeds needed water to start growing or if any kind of liquid would work. Mary set up several experiments to find out. She used radish seeds, paper towels, plastic bags, and different kinds of liquid in her experiment. Mary put three seeds into each bag. She then used 30mL of liquid to wet a paper towel and put a different paper towel in each bag. Mary put all of the bags on the same table next to a window so that they could each get the same amount of light. She waited three days and then checked her plants.
independent variable:
dependent variable:
control:
experimental group:
control group:
Answer:
independent variable: 30mL of liquid to wet a paper towel
dependent variable: how much the plants grow if at all.
control: they all received the same amount of light, that or the paper towels are the same.
experimental group: It's not stated that she did indeed use water, but there is a need for a control group, if so, then it's the other 2 groups that didn't use water, also because I can't think of anything else.
control group: The groups that used water rather than the other 2 plants.
Explanation:
i need help with this question that is on my homework, is it ok if someone helps me please. thanks to anyone who helps! :)
I’m confused with this question
Can anyone help?
I get why u were confused cause the way they word some of the answers literally doesn't make any mf sense
my best answer would be the 3rd one (sediment that is sorted by size due to the changing velocity of the water)
Explanation:
because when sediments are well sorted their sizes are similar
Ribosomes are organelles which make ____
Answer: They make proteins my friend.
Explanation:
what is photosynthesis?
Photosynthesis is the process by which plants generate simple carbohydrates. This process used the energy from the sun.
Photosynthetic reactions:Photosynthesis refers to the metabolic process by which plants and algae use the energy from the sun and carbon dioxide to generate simple carbohydrates and oxygen.Photosynthetic reactions can be divided into light-dependent reactions and light-independent reactions.The light-independent reactions (also called the Calvin cycle) generate simple carbohydrates such as glucose.In conclusion, in photosynthetic reactions, plants turn carbon dioxide (CO2) and water (H2O) into simple carbohydrates by using the energy from the sun.
Learn more about photosynthesis here:
https://brainly.com/question/1388366
1. There are 200 bones in the human body. 2. The skeleton is the structural arrangement of bones in the human body. 3. A bones are of the same shape. 4. Bones give shape to the body. 5. The backbones or spinal column are attached to the skull. the statements below.
Answer:
Salmat po
Explanation:
sorry i can send the answer he said "We dont use rude word here, please change"
differences between treatment outcomes for different populations are known as:
Answer:
Differences between treatment outcomes for different populations are known as health care disparities.
.・。.・゜✭・have a nice day・✫・゜・。.
What is required for the light independent reactions to occur in photosynthesis
The ultimate goal of the light-independent reactions (or Calvin cycle) is to assemble a molecule of glucose. This is the part of photosynthesis that requires the CO2 the plant gets from the air.
PLEASE HELP I AM STRESSED ANS CANT TAKE IT ANYMORE.. •Boll Weevils are an invasive species that has developed resistance to many major pesticides. Evaluate how
this influences the Boll Weevils' success and the options that can be used to control them.
Answer:
the boll weevil has an amazing complex gene system that allows them to quickly overcome many poisons. if so much as a few survive those few will have offspring and adapt being completely immune to the once deadly poison.
8. Fish make use of _______ exchange in their gills. a. cross-current b. concurrent c. cocurrent d. countercurrent
Answer:
Countercurrent
Explanation:
I think it's the answer
Answer:
d. countercurrent
Explanation:
im pretty sure this the answer so i hope this helps bro/broette bye
Describe the process of oxidation in terms of electrons AND energy.
Oxidation is described as the loss of electrons and energy by a molecule.
OXIDATION:Oxidation is a process whereby a molecule loses electrons (e-) or energy to become positively charged. Oxidation changes the oxidation number of the molecule involved depending on the number of electrons lost. Reduction is the opposite of oxidation, and it entails gain of electrons and energy by a molecule. Together, they are called oxidation-reduction or redox reaction.Learn more about oxidation at: https://brainly.com/question/3867774?referrer=searchResults
What is the single greatest threat to biodiversity?
Answer:
Habitat loss
Explanation:
Habitat loss is the single greatest threat to biodiversity on Earth today and in fact it is the second largest threat to our existence on this planet next to Climate Change.
Which of the following leaves the nucleus? (There may be only one answer or there may be
multiple)
No answer text provided.
TRNA
mRNA
DNA
Answer:
tRNA and mRNA can leave the nucleus.
Explanation:
tRNA, when mature and correct, can leave the nucleus and enter the cytoplasm. mRNA can leave the nucleus through pores in the nuclear membrane. However, DNA cannot leave the nucleus, it has to be transcribed into RNA.
following question:
Do you believe that the government should enforce automobile safety regulations? Remember
to use claim, evidence, and reasoning to support your answer. Please write a paragraph in ur own words. Do don’t copy off the internet please. Please I really need someone help right now. This is due at 11:59 pm. Please help
Answer:
isk
Explanation:
which of the following could explain why the percentage of brown-shelled insects decreased from year 3 to year 4
Answer:
I feel like you need a picture or graph for someone to answer this question. Being helpful, I'll guess some possible answers.
Nutrient or water shortages
Environment issues
Disease
Explanation:
Can someone plz help me? :(
Answer:
D - design a device that can throw an object at least 15 metres
Answer:
D. Design a device that can throw an object at least 15 meters.
Explanation:
First of all, the object shown as you may be able to tell, look like a catapult. It also shows the top end of it holding a ball, getting ready to launch it. It then shows a line of the ball traveling after being launched. The balls land of the ground at 15 meters. From this iformation you look at the options:
A. Design an object that is 10 meters tall.
No, because 10 meter is just the highest point of the ball being launched.
B. Design a vehicle that can travel across a 10-meter feild.
No, because it is the ball that is traveling, not the catapult.
C is about a vehicle traveling again, so eliminate that too.
D. Design a device that can throw an object at least 15 meters.
This describes exactly what we soo in the picture. Meaning D is correct.
Follow me on intsa: ifaulkner24
Send me a message on it and I'll follow you right back
A given skull has flaring zygomatics, shovel-shaped incisors, round orbits, and moderate nasal aperture width. The ancestry of this individual is likely ________________
Answer:
Asian or Native American
How does 02 enter the mitochondria
How does oxygen enter the mitochondrial matrix? The electrons taken from NADH and FADH are passed to several other proteins in the inner mitochondrial membrane. Ultimately, they are passed to oxygen (O2). O2 becomes two molecules of water (H2O) after receiving four electrons. This is how oxygen is used by cell respiration.
After a nuclear disruption in Siberia during the winter, scientists found evidence that the DNA in cells of local wildlife newboms had several mutations. Which of
the following is a valid claim that can be made about how the nuclear disruption led to mutations?
A High temperatures during the disruption caused damage to parental gametes (sex cells) resulting in mutations in newborns
mutations in newborns
B. High temperatures during the disruption caused damage to parental somatic cells resulting.
C Exposure to radiation during the disruption caused damage to parental gametes (sex cells) resulting in mutations in newborns.
D. Exposure to radiation during the disruption caused damage to parental somatic cells resulting in mutations in newborns.
Answer:
The correct answer is choice (B) the
production of proteins. Choice (A)
is incorrect because mitochondria
produce energy for the cell. Choice (C)
is incorrect because the cell membrane
controls the removal of substances
from a cell. Choice (D) is incorrect
because lysosomes break down
chemicals.
Explanation:
C. Exposure to radiation during the disruption caused damage to parental gametes (sex cells) resulting in mutations in newborns is a valid claim that can be made about how the nuclear disruption led to mutations.
What is damaged by radiation while mutations in DNA?Radiation can cause mutations in DNA by damaging the genetic material, and these mutations can be passed on to offspring through the parent's gametes.
This is because radiation can cause mutations in DNA by breaking the chemical bonds that hold it together or by causing other types of damage that alter the sequence of nucleotides. Since gametes are the cells that are involved in reproduction and pass on genetic material to offspring, mutations in gametes can be passed down to future generations.
Somatic cells, on the other hand, are the cells that make up the body of an organism but are not involved in reproduction. Mutations in somatic cells can lead to health problems for the individual but are not passed down to offspring.
Therefore, in this scenario, exposure to radiation during the nuclear disruption likely caused mutations in the gametes of the local wildlife, which were then passed down to their offspring resulting in genetic mutations in newborns.
Learn more about mutations at:
https://brainly.com/question/9598940
#SPJ2
I really need helppppp
pls helpppppppppppp it's due today
Answer:
The coreect answare would be B
Answer:
A is upper epidermis
B is palisade cells
C is spongy mesophyll layer
D is the lower epidermis
Explanation:
i hope this is helping
All living things are made of one or more organs? True or false
Answer: True
Explanation:
All living things are made of cells; the cell itself is the smallest fundamental unit of structure and function in living organisms. ... Organs are collections of tissues grouped together performing a common function. Organs are present not only in animals but also in plants.
Laura has a bacterial infection in her urethra, most likely Escherichia coli. How are the bacteria able to stay attached to the urethra, even during the full force of urination
A. Modified TRUE or FALSE: Write TRUE if the statement is correct. Otherwise, change the underlined word/phrase to correct the statement.
Answer:
both are true
true
true.......
paula uses an enzyme to speed up her chemical reaction
this is an example of which of the following biological molecules
carbohydrates
nucleic acids
proteins
lipids
Match each part of the endocrine system with the correct label.
Answer:
Your numbers are
1 Pineal gland
2 Hypothalamus
3 Pituitary Gland
4 Thyroid Gland
5 Thymus
6 Pancreas
7 Adrenal Glands
8 Testes
9 Ovaries
Explanation: are correct
Answer:
1 Pineal gland
2 Hypothalamus
3 Pituitary Gland
4 Thyroid Gland
5 Thymus
6 Pancreas
7 Adrenal Glands
8 Testes
9 Ovaries
Explanation:
The Smiths went to dinner at Cheesecake Factory and their bill was $123.75 plus 7.5% sales tax. What is the total bill? Round to the nearest cent.
The total bill that was given to the Smiths at the Cheesecake factory was $133.03
An equation is an expression used to show the relationship between two or more numbers and variables.
Given that the Smiths bill was $123.75 plus 7.5% sales tax. Hence:
Total bill = $123.75 + Sales tax
Sales tax = 7.5% of bill = 0.075 * $123.75 = $9.28
Total bill = $123.75 + $9.28 = $133.03
The total bill that was given to the Smiths at the Cheesecake factory was $133.03
Find out more at: https://brainly.com/question/21105092
Which of the following best describes an antigen?
B. A recognition molecule on the surface of the cells.
What is antigen?An antigen is a substance that is capable of triggering an immune response in the body. It is typically a foreign substance, such as a pathogen (e.g. a virus or bacterium), a toxin, or a non-infectious particle (e.g. pollen or dust), that is recognized by the immune system as being foreign and potentially harmful.
When an antigen enters the body, it is recognized by immune cells called B cells and T cells, which produce proteins called antibodies to help neutralize and remove the antigen. The antigen-antibody interaction is a key part of the body's immune response and helps to protect us against infectious diseases.
Antigens can also be present on the surface of our own cells, such as cancer cells or transplanted organs, and can trigger an immune response if they are recognized as foreign by the immune system.
Overall, antigens are important components of the body's immune system and play a critical role in protecting us against infectious diseases and other threats.
Learn more about antigen at:
https://brainly.com/question/24384193
#SPJ3
can anybody describe why it rains? Include the words that scientists use
when talking about how water changes from liquid to gas and back to liquid
again
In a cloud, water droplets condense onto one another, causing the droplets to get bigger and increase. When these droplets heavy enough, they fall to Earth as rain droplets. That is when we feel and see the rain. Water vapor turns into clouds when it cools and then condenses,or when it turns back into liquid water or ice.
Epinephrine mediates the fight-or-flight response of the body. One of the effects is to increase the amount of glucose available to muscles. What does the signaling pathway triggered by epinephrine cause to occur in liver cells
Answer:
In liver and muscle cells, epinephrine stimulates the release of glucose from glycogen by inhibiting glycogen synthesis and stimulating glycogen breakdown.
Explanation:
My aunt works in the medical field, so I asked her. Hope this helps whoever needs it.
