Answer:
These are all chemical changes you can pick which ever one you would like
Explanation:
Burning, cooking, rusting, rotting,food cooking, rust formation, tarnish forming on doorknobs, fuel burning for heat, tarnished penny.Fireworks explosion. Rotting bananas. Grilling a hamburger. Saliva digesting sugar with the use of amylase.
During photosynthesis,__________ is used to break water down into oxygen and hydrogen.
Answer:
Sunlight energy
During Photosynthesis, Sunlight energy is used to break water down into oxygen and hydrogen.
An empty field has no plants growing on it. When it rains, some of the field's sail washes away downhill.
Which statement best explains how planting grass on the field might help reduce soil erosion?
O A Grass will make the soll more wet
B. Grass will help hold the soil together.
c Grass will increase the amount of soil.
O O D. Grass will stop water from moving over the field.
O
Answer:
b grass will help hold the soil together
lab: affects on human activity on freshwater resources
Which is the best way to describe the biodiversity of an area?
A grassland has organisms that live on hundreds of acres of land.
A desert has 10 species of animals that can survive dry conditions.
A rainforest has fertile soil that supports many kinds of plants.
A pond has 12 species of organisms, including 300 animals and 40 plants
Answer:
The answer is D
Explanation:
You have isolated a highly lethal toxin from an octopus that you have reason to believe binds with high affinity to the pore opening of a voltage-gated sodium channel. To determine the effect of toxin binding, you perform a _______ experiment.
Answer:
To determine the effect of toxin binding, you perform a Competitive Binding Experiment
Explanation:
Competitive binding experiments are very relevant when matters relating to cellular and or molecular toxicity are concerned.
They are used to determine the binding of a single concentration of labeled ligand in the presence of various concentrations of unlabeled ligand.
They are important because:
1. Validate a direct binding assay
2. Confirm whether or not a drug binds to the receptor
3. determine and explore how low-affinity drugs and receptors interact and it's resultant effects
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PLEASE HELP!! WILL MARK BRAINLIST!!!
Biosafety practices protect workers, products and _________?
A. EPA
B. animals
C. the environment
D. NIH
Answer:
the environment
the environment
A single atom of carbon is joined to a hydrogen atom. How many double bonds can the
carbon still form?
Answer:
One carbon atom forms four covalent bonds with four hydrogen atoms by sharing a pair of electrons between itself and each hydrogen (H) atom.
Explanation:
How many chromosomes are found in the common strawberry found in the grocery stores?
Answer:
In total, they have 56 chromosomes
Explanation:
Unlike Humans which has two copies of 23 chromosomes (in total 46) common strawberries have 8 copies of 7 chromosomes hence why they have a total of 56 chromosomes.
How do brain cells "talk" to each other?
Why is meiosis important for organisms?
It creates gametes and allows for genetic variation among organisms.
It produces genetically identical cells.
0 It provides a means of asexual reproduction.
O It allows for cell and tissue repair
Which organisms listed below is considered a secondary consumer?
A. rabbit
B. coyote
C. mouse
D. cow
Answer:
Coyote
Explanation:
every other ones are primary consumers
11. Compare and contrast the Rough ER and the Smooth ER. (Structure and
function)
*
Answer:
The rough er has ribosomes attached to it and the smooth er does not
How does energy move through living systems?
A. Energy can be created by organisms and can be passed on if it is not used by that organism
B. All of the energy is used up by organisms as they move, grow and reproduce so less energy is available for the next organism in the food chain
C. Energy is transformed and/or lost as heat as it passes from one organism to the next, but the total amount always stays the same
D. Energy is created during photosynthesis
Answer:energy is produced during photosynthesis. energy is used by the photosynthesiser or lost as heat, with the remainder available to the next organism in the food chain.
Explanation: self explanatory
A farmer sprayed his orange trees with a pesticide to eliminate the insects damaging the trees. Some of the insects survived and produced offspring that were also resistant to the pesticide.
Which process is illustrated by the pesticide resistance of the offspring?
natural selection
selective breeding
aerobic respiration
sexual reproduction
Answer:
selective breeding
hope it helped sorry if it right
Explanation:
: Non living and living organisms have things in common o Fact: o Evidence:
Answer:
Things they have in common..
Explanation:
Non living things and living things are made up of matter.Both occupy spaceThe also have weight,colour,shape etcBoth Non living and living things are characterized by their type..Why do the plant cells in these two images have different structures?
A. Because every plant cell has a different structure
B. Because they are in different stages of development
C. Because they have different jobs, or functions
D. Because the DNA in their nuclei are very different
Answer:
C
Cells have different shapes because they do different things. ... The shapes of cells have evolved to help them carry out their specific function in the body, so looking at a cell's shape can give clues about what it does. Neurons are cells in the brain and nervous system.
The plant cell in the images have different structures because they have different jobs, or functions
Why are all plant cells have different structures?All plants are very different because of their environments.
Plant cells are different in shapes because they are in different places in the plant and do different jobs. Some cell stores food,some perform photosynthesis etc.- Animal cells also have many shapes like nerve cells, germ cells etc.According to options:-
A. Because every plant cell has a different structureB. Because they are in different stages of developmentC. Because they have different jobs, or functionsD. Because the DNA in their nuclei are very differentThe answer will be (option A) they have different jobs, or finctions.
Learn more about plant cells here: https://brainly.com/question/913732
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WILL GIVE BRAINLIST FOR CORRECT ANSWERS
Answer:
wave b
Explanation:
Question 4 of 25
What kind of molecule forms from polysaccharide chains that are very
strong?
O A. Protein
B. Cellulose
C. Monosaccharide
D. Lipid
SUBMIT
PREVIOUS
Answer:
B. Cellulose
Explanation:
Polysaccharide are substances that contains many units of monomers called MONOSACCHARIDE. They are carbohydrate molecules consisting of very long chains of monosaccharides like glucose, galactose etc.
An example of molecule that forms from strong chains of polysaccharides is CELLULOSE, which consists of long chains of glucose units linked together by B-1,4-glycosidic bonds. Cellulose is the most abundant polysaccharide on Earth found in plant cell walls.
Ants and aphids often live near each other the ants Feed on the waste produced by the aphids and the aphids are protected from predators by the presence of the ants what type of relationship is this
Answer: the answer is mutualism. please give me brainliest
Explanation: Mutualism is a relationship between two different species in which both species have benefits. In this example, ants benefit because they feed on aphids' wastes while aphids benefit because ants provide them protection.Jul 8, 2016
The deepest part of the ocean is...
Answer:
Challenger Deep
Explanation:
In the Pacific Ocean, somewhere between Guam and the Philippines, lies the Marianas Trench, also known as the Mariana Trench. At 35,814 feet below sea level, its bottom is called the Challenger Deep — the deepest point known on Earth.
Answer:
about 7 miles down, the mariana trench
Explanation:
PLEASE HELP URGENT!!
Using the picture, explain how you can determine the Rick ages. How can scientists use these fossils to help age the rocks? Give an explanation on how one of these fossils was made.
Which of the following are reactants in the process of photosynthesis?
Answer:
Photosynthesis requires sunlight, carbon dioxide, and water as starting reactants (Figure 5.5). After the process is complete, photosynthesis releases oxygen and produces carbohydrate molecules, most commonly glucose. These sugar molecules contain the energy that living things need to survive.
Explanation:
Answer:
carbon dioxide and water
Explanation:
which of the following are reactants in the process of photosynthesis?
During mitosis two identical cells are produced from the parent cell these are called...
Answer:
Daugter cells
Explanation:
thses are called Daughter cells
Answer: Daughter Cells
Explanation: The process results in four daughter cells that are haploid, which means they contain half the number of chromosomes of the diploid parent cell. Meiosis has both similarities to and differences from mitosis, which is a cell division process in which a parent cell produces two identical daughter cells.
P680 is said to be the strongest biological oxidizing agent. Given its function, why is this necessary
Answer:
The correct answer is - it obtains electrons from the oxygen atom in a water molecule, so it must have a stronger attraction for electrons than oxygen has
Explanation:
P680 known as which contains a reaction center in photosystem two, it is a very strong oxidizing agent that catalyzes the transfer of electrons from H2O to a bound quinone, with the production of O2.
To have a stronger attraction for electrons than oxygen has, P680 gets electrons from the O2 atom in a water molecule.
what are two abiotic factors that might account for the differences in productivity among the land ecosystems in the table?
the two abiotic factors can be weather and soil
What are the characteristics of supernovae?
Is there anyone who can help me pls in biology this is the end of the semester I need help pls
Answer:
what do you need?
Explanation:
How do long term environmental impacts change subsequent
populations?
Answer:
Third effect... cause the organisms end up going extinct. A long-term environmental changes are... ice age, deforestation, urbanization, Earth's orbit, Sun's intensity, Global Warming, radioactive waste/pollution, extinction of species this could happen to anyone of the food webs.
Explanation:
hope this will help you
Such events may occur at a transform plate boundary
A. Earthquakes
B. Mountain building
C. Formation of the new oceanic crust
D: volcanoes
.Complete the sentence
The addition or removal of genes from a population is referred to as_____________
Answer:
The answer is -
Evolution