Which of the following situations
demonstrates a chemical change?
Answer:there is literally nothing to be answered there I can’t even see the objects that can be chemically changed
Explanation:
Answer:dry ice vaporizing, sugar and water mixing to create sugar water,
steam condensing on a mirror
Iron, reacting to water and oxygen to form iron oxide
Explanation:
Which of the following statements best explains how forests reduce atmospheric carbon dioxide levels? *
a. The roots of trees fix atmospheric carbon dioxide into the soil for use by the trees
b. Soil bacteria in forests break down atmospheric carbon dioxide to produce fossil fuels.
c. Trees use atmospheric carbon dioxide during photosynthesis to form organic compounds (sugar/food).
d. Animals that live in forests consume atmospheric carbon dioxide during cellular respiration
Answer:
The answer is C: Trees use atmospheric carbon dioxide during photosynthesis to form organic compounds (sugar/food).
Explanation:
Plants use atmospheric carbon dioxide through photosynthesis.
what are three things that revolve around the sun
Answer:
planets, moons, asteroids, comets or meteoroids.
Explanation:
which material is a pure substance
Answer:
Examples of pure substances include tin, sulfur, diamond, water, pure sugar, table salt and baking soda. Crystals, in general, are pure substances. Tin, sulfur, and diamond are examples of pure substances that are chemical elements. All elements are pure substances.
Explanation:
May I have brainliest please? :)
Answer:
Nitrogen
Explanation:
If it's for edg I got it right :)
How many water molecules are released in the synthesis of 10 maltose and 15 sucrose?
Answer:
10 water molecules are released in the synthesis of 10 maltose and 15 water molecules are released in the synthesis of 15 sucrose.
Explanation:
10 water molecules are released in the synthesis of 10 molecules of maltose and 15 water molecules are released in the synthesis of 15 molecules of sucrose because in a reaction, when two glucose molecules fuse together forming a molecule of maltose with the release of single water molecule while on the other hand, when glucose and fructose fuse together forming sucrose releases single molecule of water, so in each case, one molecule of water is produce.
Which of these organisms have no seeds and no specialized tissues?
sequoia trees
orange trees
club moss
liverworts
Answer:
Liverworts
Explanation:
a small flowerless green plant with leaf-like stems or lobed leaves, occurring in moist habitats. Liverworts lack true roots and reproduce by means of spores released from capsules.
YALL THIS IS SO FREAKING HARD
WHAT DAY IS IT?
Answer:
Today is Monday, November 16, 2020.
It can be written as 11/16/2020 or 11/16/20.
It is the 321st day of the year out of 365 days.
What patterns do you notice in how the airborne pathogen spreads
Answer:
can u send a screen shot
Answer:
Air born pathogens are minute creatures responsible for causing a variety of illness. These pathogens may be bacteria, virus or fungi and spread through a variety of mechanism. When an infected person sneeze, respiratory droplets add into air. These infectious droplets when inhaled by a healthy person he become ill.Example is flue virus.
found this on another brainly question
Explanation:
PLEASE HELP ASAP
If you discovered a cell that has no nucleus, no membrane bound organelles, and a wall, would you infer that it was a prokaryote or a eukaryote? Why?
Answer:
prokaryote
Explanation:
prokaryotes do not have a nucleus or membrane bound organelles, most prokaryotic cells have a cell wall
which source would be the most credible for researching a vacation to Alaska?
Answer:
maybe the state of Alaska tourism website would be a good source for researching a vacation to Alaska. It might work
Explanation:
choose the correct answer
1) the cell organelle which is present only in plant cell( )
a) mitochondria. b) chloroplast
c) ribosomes. d) nucleus
Answer:
B
Explanation:
Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis. Chloroplasts absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce food for the plant.
Answer:
b)
Explanation:
Chloroplasts are present in plant cells and not in animal cells, they also contain a pigment called chlorofyll which absorbs light and helps in photosynthesis
The genome is _______ the genome size.
A. larger than
B. smaller than
C. equal to
How should two solutions that differ by 1 pH unit be described?
Answer:
one may be more acidic or basic than the other solution .
Explanation:
Calculate the pH if the [H+] = (1 x 10-5).
Show Work by plugging information into the correct formula
Answer:
The pH value is 5.
Explanation:
I plugged in the values into the formula like so, -log((1x(10^(-5)))
PLSSS HELP ME ASAPPPP Name the organization
10. Viruses and cells are different in many ways. In which of these ways are viruses and cells most similar?
1. composition of outer covering
2. composition of genetic material
3. stages of reproduction
4. stages of life cycle
Answer:
the answer is 1
Explanation:
Viruses and cells are different in many ways but in composition of outer covering these ways they same to each other. Thus, option A is correct.
What are viruses?Viruses are defined as the microorganisms who needs to infect the living host cells, in order to replicate as well as reproduce. These infectious agents has been capable of the injecting as well as infecting all the life forms the present, including the plants, or the animals and bacteria.
The viruses were not just among the first organisms that has been evolve as in the order to replicate themselves and it will continue through the time they needed other organisms' cell. Aerobic bacteria has been the bacteria that has been need oxygen just perform cellular respiration, and that can survive and grow in the oxygenated environment, while anaerobic bacteria has been the bacteria that do not require oxygen for their growth.
Therefore, Viruses and cells are different in many ways but in composition of outer covering these ways they same to each other. Thus, option A is correct.
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list the biotic and abiotic factors in this image
Answer:
Biotic:
BearMooseTreesEagleBirdFishDucksOtterFernsGrassButterflyAbiotic:
RocksWaterCloudsMountainExplanation:
Remember that biotic factors are living organisms while abiotic factors are things that are non living organisms.
Hope this helps.
Which is the end result of cytokinesis from a cell undergoing mitosis?
Answer:
two cells that have two identical copies of DNA
Explanation:
Answer: two cells that have two identical copies of DNA
Explanation:
Right on Edg.
Describe the niche of the giraffe.
Answer:
A niche is the part of an animal that plays important role in its environment.
A giraffes niche would be their long necks. With their necks they can stand up higher and eat where no other animals can reach to eat.
Giraffes don't have to contend with other animals for their food so they survive harmoniously with other animals.
Their necks are instrumental in much of this niche, determining what the giraffes eat and what they see.
The elongated necks of giraffes support them consume leaves, blossoms and fruit that are higher than most grazing animals can touch; only elephants can compete for food at the equivalent level
Explanation:
who all is transgender?
Answer:
Me
Explanation:
But I don't have very many accepting people in my life right now... T-T
Several groups of students were comparing the processes of mitosis and meiosis. Each group came up with a different answer for how the two processes are different. Which of the groups made a statement about mitosis and meiosis that is most correct?
Group 1, they said that mitosis is involved in the growth and repair of cells and undergoes cell division twice, while meiosis is involved in sexual reproduction and undergoes cell division once.
Group 2, they said that mitosis is involved in the growth and repair of cells and undergoes cell division once, while meiosis is involved in sexual reproduction and undergoes cell division twice.
Group 3, they said that mitosis is involved in sexual reproduction and undergoes cell division twice, while meiosis is involved in the growth and repair of cells and undergoes cell division once.
Group 4, they said that mitosis is involved in sexual reproduction and undergoes cell division once, while meiosis is involved in the growth and repair of cells and undergoes cell division twice.
Answer:
Trust it’s B
Explanation:
I took the test and studied
Answer
Explanation: Esla B
how can fossils tell us how individual organisms protected themselves
Answer:
We can tell that extinctions have occurred in the past by looking at fossils in layers of sediments. If the amount of fossils found match you can infer that they are the same organism and they are extinct. If you can't match up the bones with any animal today.
Hope this Helps!
PLEASE HELP!! WILL GIVE BRAINLIEST!!
Identify the correct term for each definition.
a. the bottom chamber of both sides of the heart
b. the dome-shaped muscle at the base of the chest cavity that contracts and lowers to draw oxygen into the lungs then relaxes and lowers to push carbon dioxide out
c. the liquid part of the blood
d. the protein that colors red blood cells and allows them to carry oxygen to the tissues
e. the passageway out of the body for urine
f. the top chamber of both sides of the heart
g. the tube that carries food to the stomach
h. the two branches of the windpipe that descend to the right and left lungs
i. muscles that operate completely outside of conscious thought
j. tiny blood vessels where pickup of wastes and delivery of oxygen and food takes place tiny filtering units in the kidneys
k. a waste product that is made up of leftover parts of used proteins and is high in nitrogen
l. urea and other waste substances that are collected in the bladder
Answer:
a-Ventricle
b-Diaphragm
c-Plasma
d-Hemoglobin
e-Urethra
f-Atria
g-Esophagus
h-Bronchi
i- Involuntary muscles
j-Glomerulus
k-Ammonia
l-Urine
Newton's third law of motion states that for every action there is an equal and opposite reaction. Science teachers often model this law by showing what happens when two floating balls collide in a pool of water. What is the most likely reason that science teachers explain this law by modeling it?
Answer:
The law is an abstract idea that may be difficult to understand without seeing how it works.
Explanation:
5. What is true about energy transfer in communities?
A. It is 100 percent efficient.
B. It moves from consumer to producer.
C. Most of the energy in a trophic level is lost as heat.
D. Most of the energy in a trophic level transfers to one above it.
Answer:
D
Explanation:
Most of the energy in a trophic level is lost as heat. Therefore, option C is correct.
How does energy transfer from one trophic level to another trophic level?As energy moves from the primary producers through the various trophic levels of consumers and decomposers, significant amounts of energy are lost from the ecosystem between one trophic level and the next level.
The second law of thermodynamics, which states that whenever energy is changed from one form to another, there is a tendency towards disorder (entropy) in the system, is the primary cause of this loss.
When the organisms from one trophic level are consumed by the next level, this means that a significant amount of energy is lost as metabolic heat in biological systems. Therefore, option C is correct.
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Please help —————//////
Answer:
okahdbd fb fbff
Explanation:
ng nfnfgngngnngngngngnfnfnv dnf. fbf f fn
ALOT OF POINTS MARKING PEOPLE AS BRAINLIST
Select the events that happen during Prophase (Select all that apply)
A:Chromosomes coil up B:Spindle fibers form C:Nuclear envelope disappears
D:Chromosomes line up in the middle
E:Sister Chromatids divide F:Chromosomes uncoil G:Nuclear envelop forms H:Spindle fibers disappear I:DNA replicates
Answer:
A, B, G, I
Explanation:
The model shows a substance crossing a cell membrane.
Solute particle Cell membrane
Which of the following describes the process?
a.
The model shows the process of active transport because the solute particles are
moving from an area of low concentration to an area of high concentration.
b.
The model shows the process of bulk transport because the solute particles are
moving from an area of low concentration to an area of high concentration.
C.
The model shows the process of diffusion because solute particles are moving from
an area of high concentration to an area of low concentration.
d.
The model shows the process of osmosis because the solute particles are moving
from an area of high concentration to an area of low concentration.
Answer:
C
Explanation:
Solute particles are constantly moving around in a solution, interacting with one another, and dispersing in different directions. Simple diffusion is the term used to describe the random mixing of solute particles in a solution. Thus, option C is correct.
What are the factors in solution for solute movement?Active transport is the term used to describe the movement of solute particles from low to high concentration.
Because they will have more kinetic energy. The rate of diffusion increases as surface area increases.
Particles of the solute move against the concentration gradient during active transport. Solute particles travel from a low-concentration region to a high-concentration region in this manner.
Therefore, model shows the process of diffusion because solute particles are moving from an area of high concentration to an area of low concentration.
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PLEASE HELP MARKING PEOPLE AS BRAINLIST
The purpose of cytokinesis is to
A:Destroy the parent cell B:Divide the parent cell in two
C:Rebel against society D:Create a mutation
Answer:
b
Explanation:
what are the products of photosynthesis?
Answer:
Oxygen
Explanation: