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Rita planted hydrangeas in her and her grandmother’s home. The same batch of seeds produced blue flowers in her home and pink flowers in her grandmother’s home. This made her conclude that the soil in her grandmother’s garden is alkaline while that in her garden is acidic. This is an example of which type of variation? Explain.
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Answer:
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Does Soil Affect Flower Color?
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By
Mary Simpson
This flower must have grown in neutral soil, with little aluminum.
In some varieties of bigleaf hydrangeas (Hydrangea macrophylla), soil pH determines whether the plant will produce blue or pink flowers. Blooms appear bluest when grown in acidic soil with a pH in the 5.0 to 5.5 range. The same cultivar may sport pink blossoms in soil with a more neutral pH, such as 6.5 to 7.0. Florists control flower color by potting soil mixture
A medical-alert bracelet that informs first responders of a fall or an emergency and this made her conclude that the soil in her grandmother’s garden is alkaline while that in her garden is acidic.
What technology helps her to stay in her home safely?The technology that can help her stay in her home instead of moving to a nursing home is a medical-alert bracelet that informs first responders of a fall or an emergency.
The medical alert bracelet is vital as it will help during emergencies as first responders will be made aware of the grandmother's situation and can then respond on time.The same batch of seeds produced blue flowers in her home and pink flowers in her grandmother’s home.
This is the best option as other options doesn't have to do with emergencies. Rita planted hydrangeas in her and her grandmother’s home. The same batch of seeds produced blue flowers in her home and pink flowers in her grandmother’s home.
Therefore, A medical-alert bracelet that informs first responders of a fall or an emergency and this made her conclude that the soil in her grandmother’s garden is alkaline while that in her garden is acidic.
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List the six nitrogen bases that would pair with the following sequence of bases in a strand of DNA : T C G A C A
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Answer: thymine (T) Cyostine (C) guanine (G) adenine (A)
Explanation:
Guanine (G) is complementary to cytosine (C), and adenine (A) is complementary to thymine (T). Hence, the nitrogenous bases that would form for the DNA bases TCGACA are AGCTGT.
How does base pairing take place in DNA?
A DNA double helix is joined together by the hydrogen bonds that are formed between the nitrogenous bases in the opposite strands. Adenine (A), Guanine (G), Cytosine (C), and Thymine (T) are the nitrogenous bases present in the DNA. Both adenine and guanine are purines. They make bonds with pyrimidine.
Adenine (A) of one DNA strand makes a double bond with Thymine (T) of the opposite DNA strand. The guanine (G) of one DNA strand makes three hydrogen bonds with the cytosine (C ) of the opposite DNA strand. As there are three hydrogen bonds present in guanine and cytosine (GC), they require more energy to break the bond. Adenine and thymine (AT) have two hydrogen bonds, hence they require less energy than GC bonds.
Hence, in a DNA strand, the complementary strand of TCGACA is AGCTGT.
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Which of these events breaks down rocks into smaller pieces? (4 points) Sedimentation Deposition Weathering Erosion
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Answer:
Weathering
Explanation:
Weathering is the breaking down or dissolving of rocks and minerals on Earth's surface. Once a rock has been broken down, a process called erosion transports the bits of rock and minerals away. Water, acids, salt, plants, animals, and changes in temperature are all agents of weathering and erosion.
HOPE IT HELPS. PLEASE MARK AS BRAINLIEST.
Answer: Weathering breaks down rocks into smaller pieces.
Explanation:
Which section of the Venn diagram represents the contents of the nucleus?
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PLEASE HELP IT IS DUE TODAY!
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Answer:
niceee
Explanation:
Answer:
IT'S A OR C
Explanation:
im pretty sure its c though because those are chromosomes for a human
Gametes produced by an organism contain a combination of genes from that organism. In every gamete, this combination is
A. the same because it is created from the same DNA
B. the same because chromosomes are copied prior lo melosis
C. different due to DNA replication prior to mitosis
D. different due to independent assortment during meiosis
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Answer:
D). different due to independent assortment during meiosis
Explanation:
Gametes that an organism produces accommodates a blend of genes of that organism and in each gamete, this blend or combination is 'distinct and that is due to independent assortment during meiosis.' It implies that the chromosomes pass randomly for isolation of poles during the division of cells at the time of the process of meiosis and this independent segregation causes each gamete to contain a unique combination of genetic code. Thus, option D is the correct answer.
Answer:d.
Explanation:
Which element gives water its ability to create either a weak acid or a weak base, depending on the solute being dissolved?
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Answer:
hydrogen
Explanation:
the more hydrogen ions then lower the ph and the fewer hydrogen lions the higher the ph.
How does oxygen enter a cell?
A. Active transport
B. Facilitated diffusion
C. Simple diffusion
D. Osmosis
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Answer:
C
Explanation:
List the two base pairs found in dna
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Answer:
The base pairs in DNA are adenine with thymine and cytosine with guanine
Explanation:
Answer:
• Chargaff's rule→ base paring
• Adenine (A) - thymine (T)
• Guanine (G) - cytosine (C)
Explain how the lungs and circulatory system work together?
A. The lungs help with pumping of blood throughout the body.
B. The lungs take in oxygen into the body and the blood distributes oxygen to cells throughout the body.
C. The lungs take in carbon dioxide and blood distributes it to cells in the body.D.
D. Waste product from the blood is expelled out of the body through the lungs.
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Why is graphing important to
scientists? (Give at least 2 reasons)
Answers
Answer:
They can help visualize the data.
You can actually see what all of the numbers in a data table mean.
Explanation:
Its hard to look at a set of data and understand what it means without organizing it in a way which is easy to understand and refer back to.
research and tell the story about a case in which bones helped identify a missing person or helped solve a crome
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Answer:
footsteps
Explanation:
the bones leave footsteps in the ground and that is what detectives use to solve a missing or help solve a crimescene
Which of the following organic molecules are most closely related to proteins? sugars amino acids fatty acids nucleotides
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Answer:
Amino acids
Explanation:
Proteins are made up of amino acids which come together to form polypeptide chains.
The organic molecule that is closely related to proteins are amino acids. The correct option is B.
What are amino acids?Amino acids are molecules that form proteins when they combine. The fundamental components of life are amino acids and proteins.
Amino acids are left over after proteins are digested or broken down. To help the body, the human body uses amino acids to make proteins: Food should be broken down.
Isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, valine, cysteine, tyrosine, histidine, and arginine are the 12 amino acids.
An amino acid is an organic molecule composed of a basic amino group, an acidic carboxyl group, and a unique organic R group (or side chain) for each amino acid. Alpha-amino carboxylic acid is the chemical formula for amino acids.
Thus, the correct option is B.
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how many atoms of nitrogen are in a chemical formula Ni(NO3)2?
O 3
O 2
O 1
O 6
Answers
Answer:
2
just did test
Explanation:
Which statement BEST describes the cell membrane in a typical bacterial cell? The membrane...
a)has the same permeability to all substances moving in and out the cell.
b) selectively controls what enters and exits the cell.
c) is composed of two protein layers with lipids floating inside.
d) is composed of protein and carbohydrates only.
Answers
Answer:
Explanation:What’s a cell? Well, on some level, it's a bag of goo. The plasma membrane—the outer boundary of the cell—is the bag, and the cytoplasm is the goo.
Of course, a cell is ever so much more than just a bag of goo. It's a complex, highly organized unit, the basic building block of all living things. And the plasma membrane and cytoplasm are actually pretty sophisticated.
The membrane is a delicate, two-layered structure of lipids and proteins, and it controls what can enter and exit the cell. Similarly, the cytoplasm of a eukaryotic cell consists not only of cytosol—a gel-like substance made up of water, ions, and macromolecules—but also of organelles and the structural proteins that make up the cytoskeleton, or "skeleton of the cell."
In this article, we’ll take a closer look at the plasma membrane and cytoplasm.
The plasma membrane
Both prokaryotic and eukaryotic cells have a plasma membrane, a double layer of lipids that separates the cell interior from the outside environment. This double layer consists largely of specialized lipids called phospholipids.
A phospholipid is made up of a hydrophilic, water-loving, phosphate head, along with two hydrophobic, water-fearing, fatty acid tails. Phospholipids spontaneously arrange themselves in a double-layered structure with their hydrophobic tails pointing inward and their hydrophilic heads facing outward. This energetically favorable two-layer structure, called a phospholipid bilayer, is found in many biological membranes. [Close-up of a phospholipid]
As shown below, proteins are also an important component of the plasma membrane. Some of them pass all the way through the membrane, serving as channels or signal receptors, while others are just attached at the edge. Different types of lipids, such as cholesterol, may also be found in the cell membrane and affect its fluidity.
One side of the water molecule has a positive charge, while the other side has a negative charge. What do the charges indicate about the molecule?
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Answer:
That its a nuetral
Explanation:
In the given case of water molecule, the charges shows that it is a polar molecule.
What is a polar molecule?It is a molecule in which one terminal of the molecule is slightly positive and the other terminal is slightly negative. In the case of water molecule, the unequal sharing of electrons provides the molecule with a slight negative charge close to its oxygen atom and a slight positive charge close to its hydrogen atoms.
When a neutral molecule, possesses a positive region at one terminal and a negative region at the other, it is considered as a polar molecule. The molecules of water attract each other on the basis of the positive end of one water molecule and the negative end of the other molecule of water.
Thus, the charges shows that it is a polar molecule.
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the property of a membrane where some substances can cross while others cant
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HELPPP!! HELPPPP!!! HELPPP!! ASAPPPP
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Answer:
It's A and B.
Explanation:
It is A and B because the population hit the carrying capacity and birth rate up and down for death.
When a single-celled organism reproduces,what is the result
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Answer:
its called asexual reproduction
When a single-celled organism reproduces, asexual reproduction takes place.
What do you mean by asexual reproduction?Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes.
Asexual reproduction is a mode of reproduction in which a new offspring is produced by a single parent. The new individuals produced are genetically and physically identical to each other, i.e., they are the clones of their parents.
In asexual reproduction, one parent copies itself to form a genetically identical offspring. Sea turtles are an example of an animal that reproduces sexually, a volvox (green algae) is an example of an organism.
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What are some of the major forces that influence the movements of the oceans?
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A teacher pushed a 98 newton desk across a floor for a distance of 5 meters in 4 seconds what was his power
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=490J
P=W/t
=490/4
=122.5W
factors that make an ecosystem stable
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Explanation:
factores físicos son la luz solar , el suelo , el agua , los nutrimentos , la temperatura , y el aire
what is stimuli in biology in terms of igcse ????
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Answer: A Stimulus is any change either internal or external which leads to a response. This could be a noise, smell or the changes in blood sugar level.
Explanation:
PLEASE HELP URGENT
You want to survey members of your class to calculate the average amount of water they drink on a daily basis. Which of the following units would be most appropriate to use in your calculations?
A. microliters
B. micrograms
C. liters
D. kilograms
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Answer:
I would say liters
Explanation:
Because D and B are units of weight and A is extremely small for the amoutn of water you drink.
Describe the connection between glycerol, fatty acids and triglycerides.
Answers
In pigeons, the allele B produces blue feathers. The allele W produces white feathers. The B and W alleles are codominant. A blue and white pigeon BW is crossed with a solid white pigeon WW. What percent of the offspring are expected to be blue and white?
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Answer:
The correct answer is - 50%.
Explanation:
Codominance is a type of inheritance that takes place when the genotype of an individual organism in heterozygous condition express traits of both alleles.
Cross between blue and white pigeon and pure white:
BW × WW and gametes will be B and W and W and W
B W
W BW WW
W BW WW
There are 50% of BW that is blue and white pigeons
Use the information in the diagram and the passage to describe the relationship between latitude, solar energy, and climate in the three labeled zones
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Explanation:
please mark as brainlist answers
Body cavities diagram I need help
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PLZ PLZ HELLPP MEEE will mark brainliest
Which of the following does not occur in an aquatic ecosystem as a result of nutrient loading?
a. acidification of the water
b. algae growth as a result of eutrophication
c. degraded quality of water for human and livestock consumption
d. improved water habitats for human recreation
Answers
Answer:
Answer D
Explanation:
improved water habitats for human recreation
“A lava monster needs a molten plastic-consistency to survive. What later should it be in?”
- lithosphere
- asthenosphere
- inner core
- outter core
Can someone please help me with this asap?
Answers
Answer:
Asthenosphere
Explanation:
The upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.