a leaf of potted plant kept in darkness for 48 hours with smeared with Vaseline jelly then exposed to sunlight for 8 hours explain why the test for starch in the relief was negative
Answer:
I don't know sorry dude
Explain why finding the average energy of the system would be a smarter way to record the temperature than giving the energy of each individual particle
Answer:
See Explanation
Explanation:
Temperature is defined as the average kinetic energy of the particles of a system.
In a system, there are several particles moving at various velocities and having various values of kinetic energy. It is very difficult to determine the individual kinetic energies of each individual particle.
Hence, we only need to obtain the average kinetic energy of the particles of the system in order to record the temperature.
The movement of tectonic plates in two differs ot locations is shown below:
Location A
Location B
Which statement is most likely true?
• Subduction occurs in both locations.
Seafloor spreading occurs in both locations.
• The magnetic orientation of rocks may change in Location A and subduction occurs in Location
B.
•
Subduction occurs in Location A and the magnetic orientation of rocks may change in Location B.
Answer:
The magnetic orientation of rocks may change in Location A and subduction occurs in Location B
Explanation:
Toxic substances are also classified by how people are exposed to them. By definition, people may be exposed intentionally, accidentally, or deliberately.
True or False
Answer:
The statement is true.
Explanation:
When a chemical substance is dangerous for people's health, we speak of a toxic risk. This risk can materialize if exposure to the chemical agent is not controlled. Toxic substances are those substances capable of causing harmful effects in a living organism when they come into contact with it or when ingested, intentionally, accidentally, or deliberately. The toxic risk of a chemical product depends on two factors: the toxicity and the absorbed dose, where a series of factors influence: composition, properties, concentration, duration of exposure, route of entry into the organism and workload.
Can someone help me
Answer:
We need the chart from the last screen :)
Explanation:
Have a Nice Day!!!
Help please!! I'll name you brainliest!!
Answer:
I believe it will be decreased snow cover
A plant's life cycle alternates between
and
generations.
Answer:
The correct answer is - haploid gametophyte and diploid sporophyte.
Explanation:
All plant life cycle shows alternation of generation. A plant's cycle alternates between haploid and diploid generation. The haploid generation is called gametophytic generation whereas the sporophytic generation.
The multicellular haloid structure of plants called sporophytic generation and these undergo meiotic or reduction division to produce the spores. These spores give rise to a haploid multicellular structure called gametophytic generation.
What part of Henry's cochlea may have functional hair cells?
The organ of Corti of Henry's cochlea may have functional hair cells, it is the structure that makes the hearing organs.
What is cochlea?Sound waves enter the ear from the outside environment and pass through the external auditory canal before they hit the eardrum and cause it to vibrate.
The incus collects sound vibrations from the malleus, also known as the "hammer," which connects to the eardrum, and sends them on to the stapes.
The stapes are a network that moves the oval window in and out. This motion is collected by the cochlea, a fluid-filled snail-like structure that houses the organ of Corti, the hearing organ, and small hair cells that make up the lining of the cochlea.
Therefore, the organ of the Corti part of Henry's cochlea may have functional hair cells.
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Do I have the right answers
Answer:
yes
Explanation:
just that anaphase is letter c
6 th grade science lol
is mars Held in orbit by the gravitational pull of a planet
Answer:
True
Explanation:
Jupiter holds Mars in place and the reason Mars has moons is that Jupiter astroids at Mars so Mars can pull them with its gravity.
Give me Brainllest
How does composting help a landfill?
C. it allows things to decompose over 100's of years
B. helps break down biomass
D. it does not help the landfill
A. it takes up a lot of space
pls help :))
Answer:
C
Explanation:
It doesn't take 100s of years to decompose biomass. Usually it takes less than a year. Not C
It should help the land fill: D is incorrect
Initially it probably does take up a lot of space or more than the results of composting. But that's not why you do it. You do it because eventually very little will be left and it makes wonderful fertilizer. A is a half truth.
I'd pick C
PLEASE HELP ASAP!!
1. Food that the small intestine did not absorb goes to the
________________________.
esophagus
large intestine
mouth
2. Nutrients are proteins, fats, carbohydrates, vitamins and _______________________.
minerals
homeostasis
calorie
Arteries and veins are two important parts of the circulatory system. What is the relationship between arteries and veins?
A.
They work together to exchange gases.
B.
They work together to transport nutrients.
C.
They work independently to remove wastes.
D.
They work independently to relay messages.
Arteries are blood vessels responsible for carrying oxygen-rich blood away from the heart to the body. Veins are blood vessels that carry blood low in oxygen from the body back to the heart for reoxygenation.
why did mendel remove the stamens of some pea plants during his first experiment? Select all correct answers. A: To prevent reproduction from occurring. B: To control which parents plants were allowed to reproduce. C: To prevent self-fertilization of the pea plants. D: To allow the pea plants to reproduce asexually.
Answer: C. To prevent self-fertilization of the pea plants.
Mendel removed the stamens of some pea plants during his first experiment to prevent self-fertilization of the pea plants (Option C).
Who was Mendel?Mendel was a Hungarian botanist who is considered the father of genetics as a discipline.
Mendel's experiments consisted of crossing pea plants, which exhibit auto fertilization.Mendel observed how phenotypic characters are inherited by crossing different pea plants.In conclusion, Mendel removed the stamens of some pea plants during his first experiment to prevent self-fertilization of the pea plants (Option C).
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what is computer and what does it mean
Answer:
computer is an electronic device that takes in raw that ,process it and give meaning ful information
I need help please!!!
Answer:
I think option all are correct
Thinking about the process of meiosis, how do you think it is possible for gametes to end up with too many or too few chromosomes?
Through the process of meiosis, it is possible for gametes to end up with too many or too few if they fail to separate properly.
What is Meiosis?Meiosis is defined as the specialized type of cell division of germ cells in sexually-reproducing organisms that produces gametes such as sperm or egg cells. This involves two rounds of division which eventually result in four cells with only one copy of each chromosome.
This is called reduction division because the number of chromosomes in the daughter cells becomes half that of the parent cell. For example, a human cell has 46 chromosomes, but the egg and sperm cells produced as a result of meiosis have 23 chromosomes.
If chromosomes split unequally, an egg or sperm may end up with too many or too few chromosomes; when one of these participates in fertilization, the embryo may end up with too many or too few chromosomes.
Thus, through the process of meiosis, it is possible for gametes to end up with too many or too few if they fail to separate properly.
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A student is looking for evidence that spindle fibers are separating
chromosomes during cell division. Which cell is the student looking for
below?*
Plants take energy
from the sun
and make food, which for plants is
Answer:
Photosynthesis
Explanation:
Plants use a process called photosynthesis to make food. During photosynthesis, plants trap light energy with their leaves. Plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose. Glucose is used by plants for energy and to make other substances like cellulose and starch.
Answer:
[tex]\boxed {\boxed {\sf Glucose}}[/tex]
Explanation:
Plants (plus some bacteria and algae) are autotrophs and undergo a process called photosynthesis.
They obtain light energy from the sun and capture it using a green pigment called chlorophyll, water from the soil is drawn up through the roots with capillary action, and carbon dioxide diffuses into stoma on leaves.
Then, in the chloroplast, these substances are turned into oxygen and glucose. Both of these are used in cellular respiration, which creates energy for the plant to grow and carry out cellular and biological functions. Therefore, glucose is often called "food" for the plant.
A fluke is a small animal that lives in the gut of mammals and takes energy from the mammal. A fluke is a
A. hunter.
B. decomposer.
C. parasite.
D, herbivore.
Answer:
id say its a parasite
Explanation:
Describe the motion of the molecules in the cold water in terms of their kinetic energy.
Answer:
As ice melts into water kinetic energy is being added to the particles.This causes them to be "excited" and they break the bonds that hold them together as a solid resulting in a change of state:solid -> liquid.
El compuesto SeO y HgO es: * óxido ácido y óxido básico óxido ácido y óxido ácido óxido básico y óxido básico óxido básico y óxido ácido
Answer:
óxido ácido y óxido básico
Explanation:
Los óxidos son compuestos químicos formados por la combinación de un elemento químico con el oxígeno (O). Si el elemento que se combina es un metal, el óxido formado se denomina óxido básico. Por el contrario, si el elemento que se combina es un no metal, el óxido resultante es un óxido ácido.
Se (Selenio) es un elemento no metálico, por lo que su óxido (SeO) es un óxido ácido.
Hg (Mercurio) es un elemento metálico, por lo que su óxido (HgO) es un óxido básico.
the history of life on earth takes place over what time span
The history of life on Earth takes place over the last 3.5 billion years.
The Precambrian represents the last part of Earth before the Phanerozoic Eon. The Precambrian is after the Cambrian, which was the first period of the Phanerozoic Eon.The oldest evidence of life on Earth is associated with Precambrian fossils similar to algae.In conclusion, the history of life on Earth takes place over the last 3.5 billion years.
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How does carbon affect the rate of heating(melting )of ice
Answer:
In the process, the carbon dioxide bonds with, then breaks with, a lot of molecules of water. These broken water molecules weaken the ice and make it more brittle.
Explanation:
Hope it helps u
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Why do most macroinvertebrates need clean water?
Answer:
They require the cleanest water for survival as well as high levels of dissolved oxygen. In particular, mayflies (Ephemeroptera), stoneflies (Plecoptera) and caddisflies (Trichoptera) are the most sensitive to changes in water quality.
Explanation:
Hope this helps and have a great day!!!!
A scientist isolated a molecule with nucleotide bases A, C, G, and U and ribose sugars. What is it?
a. rna
b. an amino acid
c. glucose
d. dna
e. a fatty acid
Answer:
The Answer is RNA.
Explanation:
Because RNA consists of four nitrogenous bases: adenine, cytosine, uracil, and guanine. I am 100% sure that is the answer if it's wrong, very sorry.
What is the difference between a guard cell and a white blood cell?
Guard cells are found in plants and white blood cells are found in animals.
What are guard cells?Guard cells are specialised plant cells that regulate gas exchange in the epidermis of leaves, stems, and other organs. They are created in pairs, with a stomatal orifice separating them. What are white blood cells?The immune system's white blood cells, also known as leukocytes or leucocytes, are responsible for defending the body against both infectious diseases and foreign invaders. All white blood cells are created and developed from hematopoietic stem cells, which are multipotent cells found in the bone marrow. All parts of the body, including the blood and lymphatic system, include leukocytes.Guard cells function to allow gaseous exchange and white blood cells are responsible for the functioning of the immune system.
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Come up with a way to remember the difference between B cells and T cells.
Answer: B cells produce and secrete antibodies, activating the immune system to destroy the pathogens. The main difference between T cells and B cells is that T cells can only recognize viral antigens outside the infected cells whereas B cells can recognize the surface antigens of bacteria and viruses.
Explanation:
Tac----Gaa---ccg----gac-----atc / TAC---GAA---CCC---GGA---CAT what type of mutation is this
Answer:
yes
Explanation:
The process in which pebbles, sand, silt, or mud are dropped is called?
Answer:
sedimentary rocks
Explanation:
hope this helps