Sand is a type of mixture A mixture is a _____
Answer:
heterogeneous mixture
Answer:
sand is a Heterogeneous mixture. Heterogeneous mixture has two or more chemical substances.
A mixture is a material made up of two or more different chemical substance/substances which are not chemically combined!
Explanation:
hope this helped ^_^
what is the difference between plant cell nd animal cell
A plant cell contains a cell wall and chloroplasts, while animals cells do not have these cellular structures.
Chloroplasts are organelles required to produce energy in the form of ATP and thus synthesize simple carbohydrates (e.g., glucose) by the process of photosynthesis.Cell walls are cellular structures that help to support and shape plant cells.Moreover, plant cells generally contain big vacuoles, whereas animal cells generally exhibit small vacuoles.In conclusion, a plant cell contains a cell wall and chloroplasts, while animals cells do not have these cellular structures.
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When Sam cut open an apple he found only four seeds. Can you explain why?
Answer:
Yes
Explanation:
it is depend on the fruit of apple
Which statement below BEST summarizes the role of the DNA molecule in cells?
Answer:
It contains the genetic material
What is the inkiphalin command?
Answer:
It's Enkephalins.
Enkephalins are small peptides that can serve as neurotransmitters in the brain. Enkephalins act to attenuate substance P release in the dorsal horn of the spinal cord and inhibit afferent pain fibers.
Animals do not have inner feelings that tell them when to eat.
True or False
Answer:
true
Explanation: because if they did then that would be crazy, its like how would they have feelings that tell them what to eat and what not to eat, yk what i mean? im sorry if this is wrong.
Cells spend most of their time in what phase?
Answer:
A cell spends most of its time in what is called interphase
Explanation:
In cocker spaniels, solid color (S) is dominant over spotted (s). If a solid male is crossed with a spotted female and they produce all solid colored puppies, the genotypes of the parents must be:
Answer: the genotypes must be solid that is. if the male is a solid colored genotype
True and False:
1. (______) Fungi and bacteria are both prokaryote organisms
2. (______) Some Fungi reproduce both sexually and asexually.
3. (______) Saccharomyces cerevisiae reproduce sexually by budding.
4. (______) Lactophenol cotton blue is mostly used for staining the dark mold
5. (______) Yeast is regarded as multicellular fungi and molds are unicellular fungi.
Answer:
1. Falso
2. Falso
3. Verdadero
4. Falso
5. verdadero
Explanation:
1. Las células de los animales, las plantas y los hongos son eucariotas
2. Los hongos se reproducen sobre todo por medio de esporas
3. cerevisiae se reproduce tanto asexual y sexualmente levaduras se reproducen asexualmente mediante un proceso conocido como gemación.
4. La tinción de Azul de lactofenol se emplea para observar hongos.
5. Los hongos pueden ser unicelulares o pluricelulares. Las levaduras son hongos unicelulares
Which best explains the changes in borders shown on these two maps?.
Answer:
Explanation:
There are clear differences in territorial borders. The United States gained not only the land in its expansion but the authority that goes with it. More especially they have greater access to wealth and resources giving them an edge in purchasing and owning more and more lands and territories.
How could plate tectonic movements affect the evolution of life?
Answer:
A planet with oceans, continents, and plate tectonics maximizes opportunities for speciation and natural selection, whereas a similar planet without plate tectonics provides fewer such opportunities. Plate tectonics exerts environmental pressures that drive evolution without being capable of extinguishing all life. Explanation: trust :0
What is the relationship between resource use and the amount of waste produced?
Answer:
In recent years, the concept of the circular economy and related policies have tackled resource use, production, consumption and waste at a high level.
Explanation:
hope it helps a lil
Describe the steps of a muscle contraction.
(1) A message travels from the nervous system to the muscular system, triggering chemical reactions.
(2) The chemical reactions lead to the muscle fibers reorganizing themselves in a way that shortens the muscle--that’s the contraction.
(3) When the nervous system signal is no longer present, the chemical process reverses, and the muscle fibers rearrange again and the muscle relaxes.
Which renewable resource is not safe for the environment and why?
Answer: Biomass
Biomass produces gas or many sorts of waste products which are mostly used in burning and cooking. It is plant or animal material used as fuel to produce electricity or heat. Examples are wood, energy crops, and waste from forests, yards, or farms.
But the reason why it can be harmful is because biomass can produce gases like methane. Methane is a greenhouse gas which can harm the environment and reduce the ozone layer that stops harmful UV light from reaching the earth atmosphere.
4. Which factors favor the exchange between blood and tissues?
Answer:
The primary force driving fluid transport between the capillaries and tissues is hydrostatic pressure.which can be defined as the pressure of any fluid enclosed in a space. Blood hydrostatic pressure is the force exerted by the blood confined within blood vessels or heart chambers.The rate of exchange, In either direction, Is determined by physical factors : hydrostatic pressureb , oncotic pressure , And the physical nature of the barrier separating the blood and the interstitium of the tissue (Ex:- The permeability of the vessel wall).Hope this helps !!What does it mean for a bacteria or protist to be photosynthetic?
O They are responsible for disease growth.
o They are only responsible for the decomposition of compost.
They are a primary producer of biomass in the ocean.
They are multi-cellular organisms.
If a bacteria or protist is photosynthetic that means they are the primary producer of biomass in the ocean.
What are primary producers?Primary producers are organisms that produce their own food through the process of photosynthesis or chemosynthesis. These organisms are the base of the food chain in most ecosystems, as they provide the energy that drives the ecosystem.
Photosynthetic primary producers, such as plants, algae, and some bacteria, use energy from sunlight to convert carbon dioxide and water into glucose, a type of sugar. They release oxygen as a byproduct of this process.
Chemosynthetic primary producers, such as some types of bacteria, use energy from chemical reactions to convert inorganic substances into organic matter. These reactions typically involve the oxidation of sulfur compounds or methane, and they occur in environments where sunlight is not available, such as deep ocean vents and underground coal mines.
Primary producers are important because they provide the energy that drives the food chain and support the rest of the ecosystem. Without primary producers, higher-level consumers, such as herbivores and carnivores, would not have a source of energy.
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In which state elements occurs?
An element is said to exist in free state if it does not combine with any other element. Rather, free state elements are stable even without combining.
Briefly explain how DNA profiling is used to identify individuals.
If the chloroplasts of a plant cell are damaged, which will it be unable to do?
a. protect the cell
C. excrete waste materials
b. make food for the cell
d. give instruction to the cell to reproduce
Answer:
Make food for the cell
Explanation:
Since the purpose of the chloroplast is to create energy for the cell, should it be damaged it would lose its ability to do so.
Hopefully this is a better answer
Answer:
I believe it is b
Explanation:
Chloroplast help to produce food and uses the suns sun rays or energy given off of it to produce one it’s green color and it well the food
What is the type of cell show in the circle plant cell,prokaryote cell,eukaryotic cell,egg cell?
Drag each tile to the correct location.
Match each process to where it occurs in the carbon cycle.
Answer: In order:
1. Ingestion
2. Decomposition
3. Fossilization
4. Combustion
Explanation:
What is limestone?**
Answer: a hard sedimentary rock, composed mainly of calcium carbonate or dolomite, used as building material and in the making of cement.
How do protozoa and algae differ?
What stage of cell respiration is being shown above?
The stage of cell respiration that is being shown above is oxidative phosphorylation. During this stage, the transport of electrons is coupled to the generation of an electrochemical gradient.
Cellular respiration can be defined as a series of metabolic reactions by which aerobic cells generate energy in the form of ATP.
Cellular respiration has three main stages: glycolysis, the Krebs cycle and oxidative phosphorylation.
During oxidative phosphorylation, the transport of electrons across the mitochondrial membrane is coupled to the generation of an electrochemical gradient, which is then used to generate ATP by an ATP synthase as shown in the figure.
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what is the person's ultimate search in life? why?
Answer: The ultimate purpose of life is to be at a higher positive frequency than negative, as you move through the vicissitudes of life, such that you feel content at the moment of death.
Contentment at the moment of death ensures that you reconnect to your positive soul self after death, review soul lessons, heal and recuperate.
If you are not content at the moment if death , you may get lost in an invisible maze of difficulties, as a spirit in a human form and gave a difficult after life & /or next life. .. To be content at the moment of death requires several years of training in detachment, meditation and positive thinking, through life.
Explanation:
WILL GIVE BRAINLEST Why do plants store some of the food they produce?
A. to live through periods when they already have too much food
B.to have tough structures for defense
C.to provide food for other plants
D.to survive periods when they cannot make enough food
Answer:
D is your answer
Explanation:
there are times when plats cant photosynthesis to make food. So they rely on their food storage so they don't die.
Which of the following causes the change from day to night?
Answer:
^
Explanation:
The Earth orbits the sun once every 365 days and rotates about its axis once every 24 hours. Day and night are due to the Earth rotating on its axis, not its orbiting around the sun. The term 'one day' is determined by the time the Earth takes to rotate once on its axis and includes both day time and night time.
Aluminum is mined from the ground. Recycling aluminum cans decreases the need for mining bauxite. Paper can also be recycled. How does recycling paper preserve trees?
Answer:
Saving wood
Explanation:
It takes less water to break down waste paper than it does to break down wood. If paper recycling is used to the full potential, wood is only needed once to produce 5 cycles of paper which also means saving waste from landfill 5 times.
Can people develop PTSD vicariously? How different are the experiences of those who develop PTSD vicariously compared with people who develop it through firsthand experience?
Answer: certain people can develop PTSD vicariously some people cant but some can there is a huge difference between them people that experience in first hand have some what worse PTSD becuase it was first hand and not vicariously
Explanation:
trust me
1. A molecule that contains only carbon and hydrogen is called a
-
carbohydrate
carbonyl
hydrocarbon
hydroxyl
Answer:
hydrocarbon
Explanation:
It's called a hydrocarbon