Answer:
He made this comparison because just as reading is a learned activity by the brain, so are the new flood of information that a child's brain must adapt to.
Explanation:
In describing the intricacies of the human brain, Dr. Jay Giedd talked about the brain's special ability to adapt to new behaviors as well as to multitask. Many of our ancestors lived and died without ever reading a book but humans alive today have adapted well to reading. So has the brain also adapted well to all the flood of information in our day.
The brain learns through examples and it does a good job at this. This is the more reason parents should endeavor to display good examples in the presence of their children.
The smallest living things we have around, thanks to this tool they were eventually found – What is it?
Which of the following are carcinogens that can possibly cause cancer?
(Choose all that apply)
A. alcohol use
B. asbestos
C. UV radiation from sunlight
D. tobacco use (both smoking and chewing tobacco)
Answer:
all of them apply
A, B, C, and D
Answer:
All of the above can cause cancer in humans.
Explanation:
Heavy alcohol use can lead to liver cancer.
Asbestos can cause cancerous mesothelioma in the lungs.
Overexposure to UV rays in sunlight can cause skin cancer.
Smoking can cause lung cancer and chewing tobacco can cause oral cancer.
describe the role of insulin in regulating blood sugar levels
Answer:
Insulin helps control blood glucose levels by signaling the liver + muscle fat cells to take glucose from the blood. It then helps the cells to take the glucose to be use for energy, and if the body has sufficient energy, insulin signals the liver to take up glucose and store it as glycogen.
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Answer:
I think its b but I'm not sure
don't hate me if I'm wrong
Prompt
Describe the typical conditions necessary for fossil formation.
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BIUS X, X
22
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body P
Which DNA-containing central cell structure found in plant and animal cells is absent in bacterial cells?
The DNA-containing central cell structure found in plant and animal cells is absent in bacterial cells is nucleus.
What is nucleus?The part of a cell that houses the chromosomes in biology. The membrane-enclosed nucleus is where RNA is synthesised from the chromosomal DNA.
DNA is organised into chromosomes in the nucleus, which is located in the centre of the cell.
The double nuclear membrane (outer and inner) that separates the nucleus from the cytoplasm, known as the nuclear envelope, envelops it. The rough endoplasmic reticulum and the outer membrane are one unit.
The nucleolus' main job is to facilitate ribosome biogenesis by assembling and digesting rRNA into preribosomal particles.
Bacterial cells lack the nucleus, the primary cell structure that houses DNA, that is present in plant and animal cells.
Thus, nucleus is only present is eukaryotic cells.
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DNA _____________________ after transcription.
Answer:
after Transcription DNA is copied into a new molecule of messenger RNA. DNA safely and stably stores genetic material in the nuclei of cells as a reference, or template.
Explanation: happy to help :)
Is the mass–kinetic energy relationship directly proportional (as one variable increases, the other increases) or inversely proportional (as one variable increases, the other decreases)?
Answer:
The kinetic energy of a moving object is directly proportional to its mass and directly proportional to the square of its velocity.
Explanation:
The mass-kinetic energy relationship is ; Directly proportional
The Kinetic energy of an object is directly proportional because an increase in the kinetic energy of a moving object leads to an increase in the mass of the object and also to the increase in the velocity of the object squared.
i.e. K.E ( kinetic energy ) = [tex]\frac{1}{2} mv^2[/tex]
Hence we can conclude that the mass-kinetic energy relationship is directly proportional.
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a _____ mutation in which just one base of DNA is changed is called a(n)
mutation
O translocation
O point
O chromosomal
O inversion
Answer:
a point mutation
Explanation:
A point mutation or substitution is a genetic mutation where a single nucleotide base is changed, inserted or deleted from a DNA or RNA sequence of an organism's genome.
The effects of isotonic, hypotonic, and hypertonic extracellular environments on plant and animal cells is the same. However, due to the cell walls of plants, the visible effects differ. Although some effects can be seen, the rigid cell wall can hide the magnitude of what is going on inside.
Answer:
Yes.
Explanation:
Yes, there is same effects of isotonic, hypotonic, and hypertonic extracellular environments on plant and animal cells because both cells are more similar to each other. If a plant or animal cell is placed in a hypertonic solution, water will go outside the cell, and the cell will shrink, in isotonic environment, there is no water movement inside or outside of the cell, so there is no change in the size of the cell, while on the other hand, if a cell is placed in a hypotonic environment, water will enter the cell, and the cell will turgor.
Need help will give brainliest
Answer: 1. The epidermis, the outermost layer of skin, provides a waterproof barrier and creates our skin tone.
2. The dermis, beneath the epidermis, contains tough connective tissue, hair follicles, and sweat glands.
3. The deeper subcutaneous tissue (hypodermis) is made of fat and connective tissue.
Explanation: Hope this was helpful! :)
10 points
41
Which statement best describes how a vaccination can help protect
the body against disease?
Vaccines directly kill the pathogen that causes the disease,
Vaccines act as a medicine that cures the disease
Vaccines cause the production of specific molecules that will react with and destroy
certain molecules
Vaccines contain white blood cells that engulf harmful germs and prevent them from
spreadin throughout the bodyg
vaccines cause the production of specific molecules that will react with and destroy
In an experiment, scientists blocked the stoma of the first of two otherwise similar plants, resulting in ____
of the altered plant's respiration of water and carbon dioxide.
Answer:
altered growing
Explanation:
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Answer: earthquake
Explanation: earthquakes shake and have these techtonic plates. this causes the ground to break.
what is gene flow and how might it impact a wolf population
Answer:
Gene flow within a population can increase the genetic variation of the population, whereas gene flow between genetically distant populations can reduce the genetic difference between the populations.
Explanation:
Gene flow within the population increases the genetic variability in the wolf population variation can be seen.
What is gene flow?Gene migration is another name for gene movement. The movement of genetic material from one group to another is referred to as gene flow.
Through migration, gene flow can occur between two populations of the same species and is mediated via vertical gene transmission from parent to offspring and reproduction.
Any movement of people and the genetic material they carry from one community to another is referred to as gene flow, often known as migration.
Therefore the movement of genetic material from one population to another is known as gene flow.
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A pitcher throws a ball toward a player holding a softball bat. The player uses the bat to hit
the ball. The bat applies a 10-newton force to the ball.
Which statement correctly describes the reaction force between the bat and ball?
A The reaction force is the force that causes the ball to move toward the bat.
B The reaction force is the force applied to the bat by the player holding the bat.
C The reaction force is the force that pulls the ball toward the ground.
D The reaction force is the force of the ball on the bat.
Answer:
D
Explanation:
The reaction force is the force of the ball on the bat
Answer:
The answer is B
Explanation:
According to Newton's third law, for every action, there is an equal and opposite reaction. In other words, an interaction between two objects results in the two objects exerting forces upon each other.
Draw a Punnett square to represent the cross of two pea plants each hetrozygous for tallness(Tt). Use the Punnett square to identify the probability of an offspring that is short.
Answer:
25% of the offspring will be short, tt.
Explanation:
Due to technical problems, you will find the complete explanation in the attached file
One of the differences between embryonic stem cells and adult stem cells is ?
Answer:
One major difference between adult and embryonic stem cells is their different abilities in the number and type of differentiated cell types they can become. Embryonic stem cells can become all cell types of the body because they are pluripotent.
___________________________ are bodily structures that are similar in structure, but different in function, due to sharing a common ancestor
Answer:
Homologous structure
Explanation:
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So long ago they used a sundial to tell it. It starts with a “t” if you want me to spell it – what is it?
Answer: time
Explanation:
state the shape of the bacterium used in the investigation of preventing bacterial growth
Answer:
Bacterial cells come in different shapes: from rods, to spheres, to spirals
Explanation:
Which statement best describes how homologous chromosomes are
separated during meiosis I?
A. The sister chromatids of each chromosome separate into different daughter
cells.
B. The two homologous chromosomes are not separated during meiosis I.
C. The two homologous chromosomes travel together into one new daughter cell.
D. The nonsister chromatids of each homologous pairs separate into different
daughter cells.
The two homologous chromosomes separate into two different daughter cells.
Answer:
two homologous chromosomes travel together into one new daughter cell.
Explanation:
in metaphase I the tetrads line themselves up at the metaphase plate and homologous pairs orient themselves randomly. in anaphase I centromeres break down and homologous chromosomes separate. in telophase I chromosomes move to opposite pols; during cytokinesis the cell separates into haploid cells.
one of the seed banks has been storing seeds of a rare and endangered plant to keep the seeds fresh.120 of the seeds of this plant were selected to be grown out of this 120 seeds only 90 germinated
what percentage of the seeds was not fertile?show all your working
Answer:
25%
Explanation:
According to this question, a seek stored seeds of a rare and endangered plant. In order to ensure that the seeds remain fresh, 120 seeds are selected to be grown. However, out of these 120 seeds, only 90 germinated. This means that only 90 of 120 seeds are fertile.
This further means that (120-90) = 30 seeds are infertile and hence, could not germinate. In percentage, this can be represented as:
30/120 × 100
= 1/4 × 100
= 100/4
= 25% of the selected seeds are infertile.
write two sources of each of Nitrogen Phosphorus and potassium required for the growth of plant
Answer:
Do Nitrogen, Phosphorus, and Potassium Fertilizers Do for Plants? Nitrogen in Fertilizer. In simple terms, nitrogen promotes plant growth. It is associated with leafy, vegetative growth. Phosphorus in Fertilizer. Phosphorus is involved in the metabolic processes responsible for transferring Each of these fundamental nutrients plays a key role in plant nutrition. Nitrogen is considered to be the most important nutrient, and plants absorb more nitrogen than any other element. Nitrogen is essential to in making sure plants are healthy as they develop and nutritious to eat after they’re harvested. Soil is a major source of nutrients needed by plants for growth. The three main nutrients are nitrogen (N), phosphorus (P) and potassium (K). Together they make up the trio known as NPK. Other important nutrients are calcium, magnesium and sulfur.
Explanation: hope im right
Minerals like feldspar and mica are the main suppliers of potassium in soil. The earth provides phosphorus to plants. Usually in the form of synthetic fertilizer or livestock dung, farmers apply phosphorus to soil. The primary source of nitrogen in atmospheric deposition is the combustion of fossil fuels like coal and oil.
What is fertilizer?Fertilizer, a natural or synthetic substance with chemical components that enhance plant growth and productivity.
The primary sources of potassium in soil are minerals like feldspar and mica. Plants receive phosphorus from the ground.
Farmers add phosphorus to soil, typically in the form of synthetic fertilizer or livestock manure. The burning of fossil fuels like coal and oil is the main cause of nitrogen in the atmosphere.
Plants can take up nitrogen from the soil as [tex]NH^4^+[/tex] and [tex]NO_3[/tex] ions, but most of it is taken up as nitrate due to how common nitrification is in agricultural soils. As plant roots take up water, nitrate readily travels in their direction.
Thus, these are the sources of each of Nitrogen Phosphorus and potassium required for the growth of plant.
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Describe how you would use Random Sampling to determine the population of dandelions in your yard.
Answer:
randomly select different areas to count the dandelions, average the numbers and then multiply by the number of plots your grid contains. 6. In a forest that measures 5 miles by 5 miles, a sample was taken to count the number of silver maple trees in the forest.
Random sampling is used in sampling biological products. It is made up of subsets from the larger population in which the subset of individuals is selected randomly with equal probability.
It is used to collect the data for your research work.For sampling the dandelions randomly we will first choose a distinct random area for computing the dandelion.Estimate the average of the numbers determined before.Now multiply the average with the design your framework contains or with the total number of squares in the yard.Therefore this is how you calculate the random sample size.
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I need help with this one.
Answer:
Here is ya answer C: Cells
Explanation:
Explain why selective breeding of plants takes a long time (
what happen when blood sugar level is low in human body?
Answer:
it can cause signs of stress, such as nervousness, anxiety, and irritability.
Explanation:
Explain why males can be carriers for an autosomal disorders but not for an x-lined disorder.
Answer:
In order to be a carrier, the male must be a carrier of the allele without expressing it phenotypically. This can only happen when the inheritance is autosomal because he has a pair of autosomic chromosomes meanwhile he only has one X chromosome. So when the inheritance is X-linked, the allele of the X chromosome will always be phenotypically expressed
Watson and Crick made a successful model of DNA based on Rosalind Franklin's X-ray studies. This indicated that DNA was
A.
a triple helix with intertwined bases.
B.
a double helix with bases outside the helix.
C.
a double helix with bases inside the helix.
D.
a single linear molecule of bases held together by sugar-phosphate bonds.
Answer:C. a double helix with bases inside the helix
ExpAnswer: I got it correct