Water covers approximately:
a. 25% of Earth's surface
b. 50% of Earth's surface
c. 70% of Earth's surface
d. 95% of Earth's surface
Answer:
c. 70% of Earth's Surface
A cell is 30 µm in width. Assume that the cell is cube shaped.
What would be the length of the side of the cell if you wanted to double the surface area to volume ratio of the cell?
Answer:
15
Explanation:
I got it wrong and this was the answer it gave me
La miopia es un caracter bastante comun en la especie humana. Un matrimonio en el que ambos conyugues poseen vision normal, tienen dos hijos, uni con una vision normal y el otro con miopia. Teniendi en cuenta el fenotipo de todos los miembros de la familia ¿quenpodrias deducir del gen que controla la miopia? ¿ que genotipo podrias asignsr a cada individuo?
Answer:
El gen que controla la miopia es dialelico, autosómicoEl alelo dominante M expresa visión normal, El alelo recesivo m expresa miopia, Los padres con visión normal serían heterocigotas, Mm.Tendrían un hijo con visión normal homocigota dominante MM o Heterocigota Mm Tendrían otro hijo homocigota recesivo con miopia, mm.Explanation:
Datos disponibles:
Ambos padres poseen visión normalUno de los hijos tiene visión normalEl otro hijo tiene miopiaPodríamos establecer que M es el alelo dominante, mientras que m es el alelo recesivo.
A partir de la información brindada, podríamos suponer que:
Opción 1:
La miopia es un caracter expresado por un gen dominante. Si este fuera el caso, entonces al menos uno de los padres debería tener miopia para poder heredarle al hijo el alelo dominante para expresar el caracter. Si este fuera el caso, los posibles genotipos de los padres serían:
Parental) Mm x mm (al menos uno de los padres con miopia)
F1) 1/2 Mm (Hijo miope)
1/2 mm (Hijo con visión normal)
Pero en este caso, los dos padres tienen visión normal, entonces si el gen dominante expresa la miopia, los genotipos de los padres serian homocigotas recesivos, mm. Si ambos padres son homocigotas recesivos, no podrían heredarle a ningun hijo el alelo de la miopia. En este caso, la cruza sería:
Parental) mm x mm
F1) 100% mm (todos los hijos con visión normal)
Sin embargo, para el ejemplo planteado, los dos padres tienen visión normal, uno de los hijos tiene visión normal y el otro tiene miopia, lo que nos conduce a la segunda opción.
Opción 2:
La miopia es un caracter heredado por un gen recesivo, m. Mientras que la visión normal es heredada por un gen dominante, M. Entonces, si este fuera el caso, para que ambos padres con visión normal, tengan un hijo homocigota recesivo para el caracter, entonces ambos padres deberian ser heterocigotos. Su hijo miope heredaría un alelo recesivo de cada padre y expresaría el defecto. El genotipo de las personas con miopía sería entonces homocigota recesivo. Esta cruza sería de la siguiente manera:
Parental) Mm x Mm (Ambos padres heterocigotas)
Gametos) M m M m
Cuadro de Punnet)
M m
M MM Mm
m Mm mm
F1) 3/4 o 75% de probabilidad de tener un hijo con visión normal
1/4 o 25% de probabilidades de tener un hijo miope.
Entonces, podemos concluir que:
El gen que controla la miopia es dialelico, autosómicoEl alelo dominante M expresa visión normal, El alelo recesivo m expresa miopia, Los padres con visión normal serían heterocigotas, Mm.Tendrían un hijo con visión normal homocigota dominante MM o Heterocigota Mm Tendrían otro hijo homocigota recesivo con miopia, mm.Describe the polar regions. Help please!
Answer:
Polar region, area around the North Pole or the South Pole.The northern polar region consists mainly of floating and pack ice, 7–10 feet (2–3 m) thick, floating on the Arctic Ocean and surrounded by land masses.
Climate - long cold winters, with annual temperatures mostly below freezing.
Soil - the soil is covered in ice throughout the year.
Plants - hundreds of species of moss, algae and lichen survive the harsh conditions of the Polar biome.
what are the building blocks of muscle and it provides 4 calories for every gram
Answer:
Protein
Explanation:
Protein is made up of amino acids that help to grow, maintain and repair different tissues in the body- including muscle.
Answer: The answer is protein
Explanation: I got it right on my test
What causes a volcanic eruption?
Meiosis is a process of Cell division in which the number of chromosomes per cell is cut in __________ and homologous chromosomes in a ___________ cell are separated. Meiosis involves two distinct stages: meiosis I and ___________. One diploid (full # of chromosomes) cell becomes ____haploid (half # of chromosomes) daughter cells.
Answer:
Explanation: This process is called mitosis. However, parental gametes – the sperm and egg cells – are unique from all other cells in that they reproduce through a process called meiosis. The purpose of meiosis is to shuffle genetic information and cut the cellular chromosome number in half, from 46 chromosomes to 23 chromosomes. In this way, when an egg and sperm cell combine during fertilization, the resulting embryo will inherit the appropriate amount of unique genetic information from each parent.tion:
best answer gets brainliest
Come on, shake your body baby, do the conga
I know you can't control yourself any longer
Come on, shake your body baby, do the conga
Answer:
C.
Explanation:
Which internal structure is an adaptation that provided organisms with the function to perform gas exchange on land?
Answer:lungs
Explanation:
Lungs
Claim: Which type of reproduction is more beneficial to a species
Asexual
Sexual
Answer: Asexual
Explanation: Since only one parent is needed, asexual reproduction is more beneficial. It is a "simpler" (in terms of not needing two mates to fornicate) and causes species to reproduce at a faster rate
what is the average for a human piens
A 2.inc
B 4inc
C 10 inc
D 1 feet
Answer:
the average size is 4 inch. I think
Answer:
B. 4in
Explanation:
I'm not sure, and I don't want to look it up.
But that's the most reasonable.
2 is too small, 10 in is to big and 1 foot is to big.
5 internal and external ways to help your skin please will mark brainliest
1) What is the monomer (building block) of a protein?
Amino Acids
Nucleotides
Legos
Answer:
Amino acids
Explanation:
True or False: Humans have been changing the genetics of fruits and
vegetables only recently, since the 20th century.
Answer:
i think its true
Explanation:
(NEED HELP ASAP) True or False: Some food molecules (fiber, starch, glucose,etc.) that enter the body never leave the digestive system?
Answer:
True
Explanation:
_______ is where both organisms gain from the interaction. A. Commensalism B. Mutualism C. Predation
Answer:
B. Mutualism
Explanation:
Mutual means both parties feel the same way, so they both gain from the interaction. I just looked at the root of the word
Answer:
b . mutualism
Explanation: MUTUALISM IS A FORM OF SYMBIOSIS WHEREBY BOTH ORGANISMS INVOLVED BENEFIT FROM THE RELATIONSHIP
3) What classification of unconformity occurs when sedimentary rock overlies igneous rock?
A) disconformity
B) nonconformity
C) angular unconformity
D) conformity
Answer:
B nonconformity
Explanation:
Advancements in which held have increased the ability to store increasing amounts of data on electronic devices?
social skills
driving skills
technology
biology
Answer:
Technology
Explanation:
As technology gets better, the density with which you can pack devices with transistors, or other methods of data storage has rapidly increased. Hope this helps!
Answer:
C
Explanation:
I will mark brainliest
Answer:
An important term in genetics that was not used by Mendel was the word "gene", a particle of the chromosome responsible for the traits of a living being. The molecule discovered by Oswald Avery - related to genes and inheritance - was DNA, a discovery he made in 1944.
Explanation:
Despite being considered the father of genetics and providing important information about the inheritance of traits, Mendel did not go so far as to use the term "gene," which is where the alleles responsible for those traits reside. The term "gene" was first used by another botanist, Wilhelm Johanssen, who in 1909 proposed the use of the word gene as the name of the particle responsible for inheritance.
In 1944, the Canadian physician Oswald Avery, faced with the mistaken belief that genes were found in proteins, proposed an experiment where he discovered that the molecule responsible for heredity was deoxyribonucleic acid, or DNA.
If a strand of DNA has 45% A, what percent will be C?
Answer:
55%
Explanation:
Answer:
[tex]\boxed {\boxed {\sf C=5\%}}[/tex]
Explanation:
There is a method to calculating base percentages known as Chargaff's Rule. It states:
[tex]A+T+G+C=100\%[/tex]
We know the DNA has 45% Adenine or A.
Adenine always pairs equally with Thymine. In other words, the percentage of adenine equals the percentage of thymine (45% Thymine or T).
[tex]45\%+45\%+C+G=100\%[/tex]
[tex]90\%+C+G=100\%[/tex]
Subtract 90% from both sides.
[tex]90\%-90\%+C+G=100\%-90\%[/tex]
[tex]C+G=10\%[/tex]
Cytosine(C) and Guanine(G) pair equally and their percentages will be equal. We can divide 10% by 2.
[tex]C+G=10\% /2[/tex]
[tex]C/G=5\%[/tex]
The percentage of Cytosine or C is 5 percent.
Why don't we all look the same if all humans have the same number of chromosomes
that contain the same genes?
Answer:
A small number of genes are slightly different in everyone which results in everyone looking different from one another. Each person has two copies of each gene, one from your mother and father which makes you look somewhat alike. Their are alleles that have small differences in them which are different from someone elses DNA bases which make you look different.
Explanation:
How are proteins made and secreted out of the cell by using active transport
Answer:
diffusion
Explanation:
it puts it out and reduces it
A group of similar cells that come together to perform a common function 2 points
is what? *
An Organ system
A Tissue
An Organ
The Matrix
Answer:
an organ
Explanation:
What holds the two strands of the DNA double helix together?
A.Weak hydrogen bonds
B. Strong hydrogen bonds
C. Weak covalent bonds
D. Strong covalent bond
Answer:
B.Strong hydrogen bonds
Explanation:
The deoxyribonucleic acid (DNA) molecule consists of two chains or strands of nucleotides that are held together in a double helix by hydrogen bonds between the bases of the nucleotides.
A single covalent bond exists when two atoms share ………………pair(s) of
valence electrons
How do you train your dog to stay? Include details and be specific
Answer:
Simply put your hand out and block them and put them back in the corner in a sit position. make sure that you let your dog know that not moving is what gets them. The reward gradually increase the distance and time as we did in the corner until they can stay for 10 seconds at 10 feet away.
Also, with a leash, when teaching your dog to stay, say "stay" and pull the leash back to when the dog is sitting. This gives the dog an understanding of what to do and how to do it. Repeat this a few times. Then the dog will learn to sit and stay before the leash stops. Then they will have learned the "Stay" command.
Hope this Helps!
Answer:
Positive reinforcement is one of the best ways to train a dog. This may be treats, such as a biscuit, or affection, like a belly rub. There's also giving them a new toy, or taking them on a walk even. Most trainers have these tools called clickers. They get a dog's attention and keep it, refocusing them if they wander off mentally.
Not all trainers train their dogs to stay the same way. More popular ones may give the command "Sit!", which sometimes isn't very effective. I personally trained my dogs with a type of sign language. One finger up for "sit", and two for "stay". Full hand is "down" or "wait". As I said, many different ways of training.
If a dog does not respond to positive reinforcement, there is negative reinforcement, but it is seriously frowned upon. This could be a water bottle or receiving no treats. Some people take this too far, however.
The best way to train a dog to stay is to be patient with them, use positive reinforcement, and to understand. They're a dog, they're bound to be distracted, just like a child. To refocus them, snap your fingers or whistle, and if need be, call their name. Don't expect them to learn it all in one day: all dogs have different personalities and learning capabilities. One dog may pick it up quick, while it may take another month to learn, just like humans.
You also have to take into consideration age and history of the dog. These are two very important factors in training, as if a dog is used to being spoiled rotten, positive reinforcement most likely won't help. If the dog is a young puppy, they're going to want to learn and explore instead.
I hope this helps, sorry for rambling.
Are mitochondria found in plant cells, animal cells, or both??
Please help:)
Answer:
Both.
Explanation:
Both animal and plant cells have mitochondria, but only plant cells have chloroplasts. Plants don't get their sugar from eating food, so they need to make sugar from sunlight.
Answer:
Both.
Explanation:
Without mitochondria, cells would not be able to function, no matter what type they are. Mitochondria is the powerhouse of the cell! Hope this helped
what would happen to your body of blood pressure didn't work as it should?
Answer:
Vision problems. Heart attack. Stroke.
Explanation:
Answer:
Many things.
Explanation:
Blood pressure is a needed thing in a body. It gets blood to your organs and everywhere that needs it. If it didn't work, many things could happen.
Too high BP(hypertension):
If your blood pressure is too high, it can cause ruptured vessels, heart attacks, strokes, heart failure, which is where the heart enlarges too much to continue pumping blood at the adequate pressure/speed, kidney disease/failure, which would be from damage to the arteries around the kidneys, vision loss due to damage to the vessels in the eyes, angina, which is chest pain due to narrowed vessels in the chest, some forms of which may cause heart attacks.
Too low BP(hypotension):
If you're experiencing hypotension, there are many things commonly associated with it. These are dizziness, fainting, nausea, blurred/fading vision, lack of focus, and fatigue. If hypotension becomes extreme, it can cause someone to go into shock, which is life threatening and can and will cause death.
Which of the following qualifications is the same for both Senators and Representatives?
You must have a college degree.
You must be a Christian.
You must be a legal resident of the state you represent.
You must be at least 30 years old.
Answer:
You must be a legal resident of d state u represent
Explanation:
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What role does gene expression play in determining traits on an offspring? Explain your response
Gene expression has been defined as the process where the genes produce proteins and RNA. They determine the traits in offspring as various types of proteins pass from parent to offspring.
What is gene expression?Gene expressions are said to be the expression of the genome products in the cell that undergoes the process of transcription and translation to produce the RNA and protein structures that are responsible for providing the phenotype and genotype.
The genes code for the RNA and protein that regulates the amount and type of proteins to be expressed in the offspring that are passed from a parent through reproduction methods. They are hereditary patterns that vary in some amount to make two individuals different from each other.
Therefore, gene expression plays an important role in determining the trait in offspring.
Learn more about gene expression, here:
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