Answer:
The tidal force causes Earth—and its water—to bulge out on the side closest to the Moon and the side farthest from the Moon. These bulges of water are high tides. As the Earth rotates, your region of Earth passes through both of these bulges each day. When you're in one of the bulges, you experience a high tide.
Answer:
There is decrease in salinity; penetration of light to the water decreases and this is referred to as turbidity, density decreases
Explanation:
The sea is known to contain salty water as water volume increases its saltiness would decrease; the rate at which light penetrates the seas decreases; from normal science, density is Mass divided by Volume and with Mass constant and as Volume increases density is gonna increases.
Which would be the most dangerous to swallow?
A. thermoacidophiles
B. halophiles
C. Escherichia coli
D. a bacteriophage
Answer:
D. a bacteriophage
Explanation:
A. and B. need extreme environments to survive.
C. is actually beneficial to us, especially in the digestive tract.
D. is a type of virus!
What happens first at each origin of replication?
A: enzymes kill viruses
B: enzymes remove bases
C: enzymes unwind DNA
D: enzymes eat nucleotides
Answer:
The answer is C.
Explanation:
At first, an enzymes called Helicase unwind the double helix in a DNA .
Write two sentences on global warming
Answer:
Global warming is a major crisis in the world. It is when companies or industries dump or pollute the air or the nature that is around us.
Explanation:
Answer:
I'm glad you asked!
Explanation:
Global warming is temperature of earths surface and more, like atmosphere.Global warming is Mostly about temperature and crisis.People are hurting animals in the ocean and throwing garbage.
Hope that was helpful.Thank you!!!
Marijuana is a(n)
a. depressant
b. stimulant
c. hallucinogen
d. opiate
Answer:
Marijuana is a stimulant.
Answer: Marijuana is a stimulant.
1. In a sample of double-stranded DNA, 10% percent of the nitrogenous
bases are guanine (G). What percentage of the nitrogenous bases in the
sample are cytosine (C)?
10%
80%
40%
90%
Answer:
10
Explanation:
what is the best definiton of genetically motified foods? HURRYYY!!! please and thank youuuu
Answer:
GMO, or genetically modified foods, are foods that are messed with genetically by science to better benefit the human race. For example, scientists might replace genes that give corn a lower harvest, with a different gene in corn that makes a higher amount of harvest.
Explanation:
You could also look it up. Just search "GMO".
The changing of the rivers created more ____________ for animals
aRegeneration
bVegetation
c Erosion
d Habitats
Answer:
D) Habitats for animals.
Explanation:
It depends what the question means when it says 'the changing of the rivers'. I took it as the rivers are changing size and becoming more spread out. In that case, I chose habitats.
The more water there is, the more habitat there is for sea life.
All in all, the correct answer is D).
A heterozygous Tall plant is crossed with a heterozygous Tall plant
What percent of the offspring will be heterozygous?
Select one:
A. 100%
B. 50%
C. 25%
D. 75%
Answer:c
Explanation:sorry if this wrong don’t trust me!
How is the epithelium suited for the substances ?
Answer:
Epithelial tissue is composed of cells laid together in sheets with the cells tightly connected to one another. Epithelial layers are avascular, but innervated.
Epithelial cells have two surfaces that differ in both structure and function.
The epithelial cells are nourished by substances diffusing from blood vessels in the underlying connective tissue. One side of the epithelial cell is oriented towards the surface of the tissue, body cavity, or external environment and the other surface is joined to a basement membrane. The basement layer is non-cellular in nature and helps to cement the epithelial tissue to the underlying structures.
Which body system is an important place for mineral storage, gives us support and structure, and provides a place for muscle attachment? A) digestive B) muscular Eliminate C) nervous D) skeletal
Answer:
Skeletal
Explanation:
Your bones hold everything together, and help support your body. Also your muscles are attached to your bones. If i'm wrong i'm sorry
2 Points
Which best describes the blood flowing in a vein?
O A. It moves toward the heart.
B. It contains no red blood cells.
O C. It is oxygen rich.
D. It contains no white blood cells.
What is the purpose of the motor neuron?
to carry information from sense organs to the brain or spinal cord
to carry information from the brain or spinal cord to sense organs
to carry information from the brain or spinal cord to muscles and glands
to carry information from muscles and glands to the brain or spinal cord
Answer:
ans this question is no 3
Explanation:
Because it sends electrical output signals to the muscles affecting the muscles ability to functions.
Describe a few ways in which an individual person can help protect biodiversity.
Answer:
An individual person can help protect biodiversity in multiple ways.
This person can educate themselves on biology and learn exactly what the problem is.This person can educate others once learning about it himself.This person can advocate for the environment.This person can cut down on their waste, lessening the amount of trash going into the environment.This person can be aware of what he buys and how it affects biodiversity.Explanation:
I don't know if this was the answer you're looking for, but I hope it's a start!
Which layer best represents the mantle?
A. 1
B. 2
C.3
D.4
!PLEASE HELP!
One type of bioremediation uses ____ to break down wastes and pollutants into less harmful material.
a. bacteria
b. vaccines
c. pasteurization
d. fission
what is the role of a cytoplasm
Answer:
Cytoplasm is responsible for giving a cell its shape. It helps to fill out the cell and keeps organelles in their place
Explanation:
Cytoplasm contains molecules such as enzymes which are responsible for breaking down waste and also aid in metabolic activity.
What is the complementary DNA strand that is created from this
template during replication?
A template strand of DNA is 3' GATCCAAAATGT 5'.
-5 GATCCAAAATGT 3'
-5' CUAGGUUUUACA 3'
-5' CTAGGTTTTACA 3'
-5' TCGAACCCCGAG 3'
With more carbon in the atmosphere, what do you think will happen to the environment
Answer:
Global warming
Extra carbon dioxide in the atmosphere will increases the greenhouse effect. More thermal energy is trapped by the atmosphere, causing the planet to become warmer than it would be naturally. That increases the Earth's temperature which is also called Global Warming
Which statements about mutations are true? Check all that apply.
A. Mutations cannot be passed from generation to generation.
B. Mutations are rare.
C. Mutations are always harmful.
D. Germline mutations occur in body cells.
E. Most forms of cancer are caused by somatic mutations.
Answer:
most forms of cancer are caused by somatic mutations
Explanation:
Answer:
B & E
Explanation:
Just did it and got it right
what will happen if the cilia cleared the mucus?
Answer:
You sneeze
Explanation:
I think so, when the cilia clears the germs you sneeze
explain the difference between the principles of overload and progression
What are the five evidences that a chemical change has taken place ?
Answer:
Odor, temperature change, precipitate formation, production of gas bubbles, and a color change!
Explanation:
No explanation needed really.
Where is dna found
1. Molecules
2. Elements
3.cells
Answer:
3
Explanation:
Answer:
the dna is found in the cell nucleus
Explanation:
Which type of organism developed first?
A. Chordates
B. Vertebrates
C. Deuterostomes
D. Sponges
Answer: D sponges, i just got this wrong lol
Explanation:
Why sponges develop first?
Sponges belong to the oldest and most simple animals that had evolved, and their discovery in such old rocks meant that they may have been the first animals.
How did sponges evolve?
Among extant animals, only sponges could have evolved directly from protozoa without changing feeding mode.
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Easy 50 Points
21. ____________ igneous rocks solidify beneath the surface.
22. ____________ cooling allows time for large crystals to form.
23. Sediments are laid down, or __________, before they can be formed into sedimentary rocks.
24. Fluids that crystallize in the spaces between the loose particles of sediments create rock by ____________.
25. __________ metamorphism changes enormous quantities of rock over a wide area.
26. ____________ metamorphism changes a rock that is in contact with magma because of the extreme heat.
27. In a metamorphic, minerals separate by __________ into lighter and darker bands.
28. The rocks that form from an erupting volcano are __________ __________ rocks.
29. Cemented sediments become ___________ sedimentary rocks.
30. ___________ occurs when sediments are squeezed together by the weight of overlying sediments on top of them.
Answer:
21. Intrusive igneous rocks solidify beneath the surface.
22. Slow cooling allows time for large crystals to form.
23. Sediments are laid down, or Compacted, before they can be formed into sedimentary rocks.
24. Fluids that crystallize in the spaces between the loose particles of sediments create rock by Cementation.
25. Regional metamorphism changes enormous quantities of rock over a wide area.
26. Contact metamorphism changes a rock that is in contact with magma because of the extreme heat.
27. In a metamorphic, minerals separate by Bedding into lighter and darker bands.
28. The rocks that form from an erupting volcano are Extrusive Igneous rocks.
29. Cemented sediments become Clastic sedimentary rocks.
30. Lithification occurs when sediments are squeezed together by the weight of overlying sediments on top of them.
The correct blanks are Intrusive, Slow, deposited, cementation, Regional, Contact, Foliation, volcanic, igneous, lithified, and Compaction.
Igneous rocks are a type of rock that forms from the solidification and crystallization of molten material, known as magma or lava.
Intrusive igneous rocks, also known as plutonic rocks, form when molten magma cools and solidifies beneath the Earth's surface.When molten magma or lava cools slowly, it provides sufficient time for the atoms and molecules within the molten material to arrange themselves in an orderly manner. The process of deposition refers to the settling or accumulation of sediments, which are fragments of rocks, minerals, organic matter, or other particles, onto a surface.Cementation is a process in which minerals in fluid form, often dissolved in groundwater, precipitate and crystallize within the pore spaces of sedimentary materials. During regional metamorphism, large volumes of rock are subjected to significant heat and pressure, typically deep within the Earth's crust. Contact metamorphism, also known as thermal metamorphism, occurs when a rock comes into direct contact with magma or an igneous intrusion.Foliation refers to the parallel alignment of minerals or the development of compositional layering within a metamorphic rock. Volcanic igneous rocks are classified as extrusive igneous rocks because they are formed from lava that has extruded onto the surface.The process of lithification involves the transformation of loose sediments into solid sedimentary rocks.Compaction is a key process in the lithification of sedimentary rocks. It takes place as layers of sediment accumulate over time, and the weight of the overlying sediments exerts pressure on the underlying layers.Thus, the correct blanks are Intrusive, Slow, deposited, cementation, Regional, Contact, Foliation, volcanic igneous, lithified, and Compaction.
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Explain how Natural Selection can lead to evolution.
Answer:
Sample Response: When the environment changes, organisms best suited for the new environment survive and reproduce. This allows the favorable adaptation to be passed on to the next generation. Over time, more and more organisms will have the favorable adaptation, and the population will evolve.
Explanation:
Just did it.
Predict the most likely outcome of culturing transformed E. coli in the presence of tetracycline.Justify your prediction.
Answer:
E.coli is a bacterium which is preffered for transformation due to its rapid growth and high efficiency of introduction of DNA molecules into cells.
Tetracycline is an antibiotic used to treat several infections such as cholera, plague, brucellosis, and malaria etcetra.
Plasmid is a small, extrachromosomal DNA molecule present in cell which is seprated from chromosomal DNA and have ability to replicate independently.
When a plasmid resistant to tetracycline and kanamycine is inserted into E.coli, the process is called transformation. E.coli might not be able to survive due to absence of plasmid but the transformed strains having antibiotic tetracycline and kanamycine will probably be able to survive it.
Hence, the culture of bacteria carrying plasmid will be able to survive only.
Maximum transformation to tetracycline achieved when cells were harvested from L broth at 5.0-6.0 cfu/ml , followed by washing twice in cold.
The susceptibility of E.coli strain to culturing transformation by plasmid DNA was examined and optimized.
TransformationCells grown within the presence of D - cycloserine ( Cyc ) rather than Neg Gram (N x) transformed better. The presence of 5 mm Mg2+ ions in washing and CaCl2 solutions stimulated transformation about 2-fold.
Optimal conditions for transformation included a pH range of seven. 25-7.75 and a cell-to-DNA ratio of about 1.6 . 10(8) cfu/ng plasmid DNA.
The frequency of transformation was highest when cells were exposed to 100 mM CaCl2 in 250 mm.
Composition[tex]\rm KCl + 5 mM \;MgCl2 + 5 mM \;Tris[/tex]
pH 7.6, before mixing with DNA
Therefore, the results of culturing transformed E.coli within the presence of tetracycline is justified.
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Match the time period with the correct layer of fossils (mya = millions of years ago). ITEM BANK: Move to Bottom 175 mya250 mya400 mya 175 mya 0
Answer:
0 mya, 175mya, 250mya, 400mya
Explanation:
The substance which highest million year ago should be more in-depth in the soil hence 400mpa should occupy the highest depth below the ground.
what is the meaning of structure?
Answer:
the word 'structure' in biology has the following meaning;
"An arrangement or organization of parts to form an organ, system, or living thing"
Bacteria are usually classified by
Answer: Bacteria are classified into 5 groups according to their basic shapes: spherical (cocci), rod (bacilli), spiral (spirilla), comma (vibrios) or corkscrew (spirochaetes). They can exist as single cells, in pairs, chains or clusters. Artwork of bacterial cells becoming resistant to antibiotics.
Explanation:
