Answer:
a hypothesis is an educated guess or an assumption made before any of the research has been done.
a theory is a substained explanation for an occurrence.
a scientific law describes what has happened.
Explanation:
In the experiment, which of the following variables should remain consistent?
the types of plants used
the temperature of the water and vinegar
the type of soil used
All of these choices are correct.
All of the above is correct
What protein protects the chromosomes during DNA replication?
Answer:
Telomeres
Hope this helps :)
Answer:
The answer is Telomeres.
Explanation:
Figure 4.19. Structure of a telomere. Telomere DNA loops back on itself to form a circular structure that protects the ends of chromosomes. Telomeres play a critical role in replication of the ends of linear DNA molecules.
Hope this helps!! ;)
I need this done by 6:30 can you please help me I don’t know the answers
- Use what you have learned about dominant and recessive alleles to explain why Ravyn
is albino when neither of her parents is abino?
Answer:
Please find the explanation as to why Ravyn is albino when neither of her parents is abino below
Explanation:
According to Gregor Mendel in his law of dominance, a DOMINANT allele is a form of a gene (allele) that masks the phenotypic expression of another in a gene while the RECESSIVE allele is the allele being masked. This means that an allele can be present in a gene but in a masked or recessive condition.
According to this question, Ravyn happened to be an albino when neither of her parents is albino because BOTH of his PARENTS are HETEROZYGOUS for the skin color trait i.e. they both contain the allele for normal skin color, which is dominant, and the allele for albinism, which is recessive. Note that a recessive trait will only express itself when in a pure breed condition, hence, both parents contributed the reccesive allele (albinism) to produce the recessive condition in Ravyn.
In a nutshell, Ravyn is an albino because his parents are heterozygous and both passed on the recessive alleles to him.
What is Pedigree?? Can someone help me i need this answer plzzzzzz
Answer:
A pedigree is like a lineage or a recorded ancestry. For example, if a dog has recorded breeding papers it would show you it's pedigree. I hope that helped! :)
how do gray whales migrate?
Answer: Grey whales travel 12,000 miles round-trip from their feeding grounds in the Arctic to calve and breed in the Baja lagoons, and then back again.
Explanation:
help me plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Answer:
I think that it is the first one.
Deposition will build up the surface of the beach, and erosion will break down the surface of the beach.
A scientist is treating rice plants with a chemical that causes mutations. What is the possible benefit of this treatment? A. clones B. transgenic plants C. increased genetic variation D. increased hybridization
Answer:
Explanation:
Its either B or C, look closely at the question and at the answers, you can narrow it down from then.
A scientist is treating rice plants with a chemical that causes mutations. The possible benefit of this treatment is transgenic plants. Hence, the correct option is B.
What is mutation?A mutation is a change in the DNA sequence that makes up a gene. It can result from errors in DNA replication or exposure to mutagenic agents such as chemicals or radiation, or from spontaneous changes.
Transgenic plants are the plants that have been genetically modified to express specific traits or traits that are not found in the original species. This is done by introducing foreign DNA or chemicals that change the plant's genome. This process is called genetic engineering.
Transgenic plants have become an important tool in agriculture and biotechnology, providing new opportunities for food production, environmental protection and economic growth. Hence, the correct option is B.
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What is the common name for C6H1206
Answer:
Glucose
Explanation:
Answer:
Glucose
Explanation:
Glucose is a simple sugar with six carbon atoms and one aldehyde group. This monosaccharide has a chemical formula C6H12O6. It is also known as dextrose. It is referred to as aldohexose as it contains 6 carbon atoms and an aldehyde group.
write the importance of thermometers.
You can check your body temperature it is useful in medical field.
Jimmy explained on his biology test that organisms grow because their cells grow. Explain why his answer is either right or wrong and if he is
wrong explain how organisms actually grow.
Answer:
See the answer below
Explanation:
Jimmy was right to say organisms grow because their cells grow.
The growth of organisms can happen in terms of an increase in the number of cells they have (through mitotic cell division) or an increase in the volume of the cells with or without an increase in the number of cells.
A good example is found in plants, most of which undergo an increase in size without any increase in the number of cells in their bodies. The uptake and storage of water in the vacuole produces a pressure that pushes on the cell walls, causing an increase in length, girths, and other growth features of the cells of plants.
Insecticides can pollute the topsoil.
True or false ?
Answer:
True
Explanation:
Some insecticides when applied may persist for longer periods and that is very harmful because the soil is degraded and living organisms in the soil may be harmed leading to soil erosion. Then the soil will lose its fertility.
Turner syndrome occurs in females who instead of having two X chromosomes have either only one X chromosome or a fragmented X chromosome. Klinefelter syndrome occurs in males who have multiple X chromosomes. Consider the karyotype.
A karyotype indicates that a male has multiple x chromosomes.
Which individual is shown in the karyotype?
male with Turner syndrome
male with Klinefelter syndrome
female with Turner syndrome
female with Klinefelter syndrome
Answer:
male with Klinefelter syndrome
Explanation:
for an individual to be considered male he needs to have at least one Y chromosome
usually an individual with Klinefelter syndrome has two X chromosomes instead of 1 and 1 Y chromosome(XXY) but the karyotype can also be XXXY
Answer:
its B
Explanation:
it belongs to a man with Klinefelter syndrome
The folded plasma membrane inside the cell is the ______.
A: endoplasmic reticulum
B: mitochondria
C: vacuole
D: vesicle
what is reduced soil?
Answer:
A chain of reactions is initiated upon soil flooding leading to reduced (low) soil redox potential (Eh, mV) conditions. These reactions include physical, chemical and biological processes that have significant implications for wetland plants.
How would a lack of contact inhibition result in the growth and spread of cancerous cells?
Explanation:
Contact inhibition is a process of arresting cell growth when cells come in contact with each other. As a result, normal cells stop proliferating when they form a monolayer in a culture dish. Contact inhibition is a powerful anticancer mechanism that is lost in cancer cells
Contact inhibition is the property of normal healthy cells where the cells cease growth after coming in contact with each other. A lack of this property results into uncontrolled growth of cells.
What is Contact inhibition?
Contact inhibition is the property of normal healthy cells which enables the cells to cease proliferation and growth when they come in contact with each other. This property is lost by the cell when the cells undergo malignant transformation. As a result, this leads to uncontrolled proliferation and solid tumor formation in the body.
In the in-vivo culture of cells, contact inhibition arrests cell growth and as a result, normal cells stop proliferating when they form a monolayer in the culture dish. Contact inhibition is a powerful anticancer mechanism which is lost in cancer cells.
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(Brainliest) Fusion is a nuclear reaction where small nuclei join together and release energy.
Group of answer choices
True
False
Answer:
it's true
Explanation:
i searched it up
biological macromolecules are organized into four main categories. What type of macromolecule contains phosphorus as part of a phosphate group?
1.) lipids
2.) proteins
3.) nucleic acid
4.) carbohydrates
Answer:
3.) nucleic acid
Explanation:
Biological macromolecules can be defined as a very large molecule (structure) that comprises of covalently bonded organic atoms and smaller molecular structures (monomers).
Biological macromolecules are organized into four main categories and these includes;
I. Lipids: these categories of biological molecules is mainly made up of fats and it is responsible for providing the body with long-term energy.
II. Carbohydrates: it is contained in energy-giving foods and it aids the functioning of the muscles, nervous system and other organs found in the body.
III. Proteins: it contains amino acids and it is responsible for maintaining the functioning of the body system.
IV. Nucleic acid: it comprises of deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) which are the genetic codes (blueprints) for living organisms.
Hence, the type of macromolecule that contains phosphorus as part of a phosphate group (sugar 2-deoxyribose) is nucleic acid.
From the biological macromolecules, Nucleic acids contains phosphorus as part of a phosphate group.
Nucleic acids are biopolymers, macromolecules, crucial for all known types of life. Nucleotides, which are the monomer components, make up their structure. a sugar with five carbons, a phosphate group, and a base with nitrogen. Deoxyribonucleic acid and ribonucleic acid are the two main types of nucleic acids.
Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are two types of nucleic acids that carry genetic information that is read by cells to create the RNA and proteins that allow living things to function.
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Which of the following is a method used to obtain the relative age of a rock or fossil?
a
Decay rates
b
Radiometric dating
c
Superposition
d
Uniformitarianism
i know its not radiometric dating
Answer:
Radiometric dating
Explanation:
What is inheritance in biology
Answer:
passing of traits
Explanation:
Inheritance is the act of passing traits through sexual or asexual reproduction.
what is the cause and effect of stop codone mutation?
Answer:
Nonsense mutations occur when a premature nonsense or stop codon is introduced in the DNA sequence. When the mutated sequence is translated into a protein, the resulting protein is incomplete and shorter than normal. Consequently, most nonsense mutations result in nonfunctional proteins.
Hope this helped! :)
What is the probability for an average star to supernova?
Answer:
Key concepts and summary. A supernova occurs on average once every 25 to 100 years in the Milky Way Galaxy.
Explanation:
please give me a heart
structures in the cell
A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. Within the cytoplasm lie intricate arrangements of fine fibers and hundreds or even thousands of miniscule but distinct structures called organelles.
What happens during the four stages of mitosis (prophase, metaphase, anaphase, and
telophase). Describe what the chromosomes and nucleus are doing during each stage.
It is advantageous for a predator to prey exclusively on a single prey species.
Answer:
Assuming this is a true/false question, the answer would be false.
If a predator only preyed on one species, it would be at a disadvantage if the prey it feeds on gets wiped out in that region.
Therefore, your answer is False.
What is carbon dioxide
Answer:
Carbon dioxide is a colorless gas with a density about 53% higher than that of dry air. Carbon dioxide molecules consist of a carbon atom covalently double bonded to two oxygen atoms. It occurs naturally in Earth's atmosphere as a trace gas.
Answer:
The air that you breathe out. Also it is what plants breathe in.
Explanation:
Hope this helps!!
Name three sources of atmospheric carbon dioxide. (Write in complete sentences and be very detailed.)
This is science.
First and best answer gets 5 stars, a thanks, and a brainliest!
Answer:
Yes, there are natural sources of atmospheric carbon dioxide, such as outgassing from the ocean, decomposing vegetation and other biomass, venting volcanoes, naturally occurring wildfires, and even belches from ruminant animals.[1]
[1](www.climate.gov/news-features/climate-qa/doesnt-carbon-dioxide-atmosphere-…)
What does order mean in biology
Answer:
A taxonomic rank used to classify organisms that is typically lower than the class and consists of families with comparable natures or characteristics.
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what would happen if an electric fish was always negatively charged instead?
Answer:
Electric eels are part of a group of animals called electric fish.These cells pump positively charged sodium atoms, called ions, from inside themselves to the outside.
Explanation:
Brainliest? plz
Electric fish is a part of the group of animals which are responsible for producing charge. These organisms pump positively charged sodium ions from inside themselves to the outside environment.
What is electric fish?
An electric fish is an fish that can generate electric fields and transfer current through themselves. Most of the electric fishes are electroreceptive, which means that these fishes can sense the electric fields present in the environment. The only exception here is the stargazer family which is not electroreceptive.
The examples of electric fish includes Electric eel, that belongs to the genus Electrophorus, South American knifefishes responsible for the production of powerful electric shocks to stun prey.
If the electric fishes are supplied with the negative charge always then they will pump positive charge to neutralize the effect of that charge.
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Explain how bacteria can be both harmful and helpful.
The species of bacteria that colonize our respiratory and digestive systems help set up checks and balances in the immune system. White blood cells police the body, looking for infections, but they also limit the amount of bacteria that grow there. Likewise, bacteria keep white blood cells from using too much force. Bacteria also help out by doing things cells are ill-equipped to do. For instance, bacteria break down carbohydrates (sugars) and toxins, and they help us absorb the fatty acids which cells need to grow. Bacteria help protect the cells in your intestines from invading pathogens and also promote repair of damaged tissue. Most importantly, by having good bacteria in your body, bad bacteria don’t get a chance to grow and cause disease.
Some species of bacteria in your body can result in diseases, such as cancer, diabetes, cardiovascular disease, and obesity. Usually, these diseases happen only when the normal microbiome is disrupted, but that can occur even from antibiotics. Antibiotics kill bacteria, and some of those will be good bacteria that we need to protect our health. When that happens, the bad bacteria that normally are kept in check have room to grow, creating an environment ripe for disease.
Bad bacteria can exist at low levels in your body without causing harm or can grow too much and wreak havoc. Staphylococcus aureus can cause something as simple as a pimple or as serious as pneumonia or toxic shock syndrome. P. gingivalis can cause gum disease, and was recently linked to pancreatic cancer (read our article find out more). Similarly, when not suppressed by good bacteria, Klebsiella pneumonia can cause colitis, and subsequently lead to colorectal cancer.
In addition to allowing disease-causing bacteria to flourish, the elimination of good bacteria throws the immune system out of whack. The result can be simple allergies or very debilitating autoimmune diseases. Without the right balance of bacteria, your body might suffer from constant inflammation.
Inflammation is the body’s alarm system, which calls white blood cells to heal a wound or to get rid of infection. Chronic inflammation, however, can make the body more susceptible to autoimmune diseases and cancer, such as causing inflammatory bowel disease which if uncontrolled can cause colon cancer.
