What is found in the medullary cavity of an adult long bone?
1. Red bone marrow
2. Fat
3. Calcium
4. Blood vessels
The answer is .......
a) Red bone marrow
1) How is energy transferred from one organism to another?
Answer:
Eating
Explanation:
Organisms eat one another to get energy.
CAN ANYONE HELP ME PLEASE WITH THE QUESTION ABOVE
Answer:
c
Explanation:
Answer:
The population of predators most often eliminates the population of prey.
Explanation:
Please tell me how does water flow through sponges in order
Answer:
Small and tube shaped, water enters the sponge through dermal pores and flows into the atrium. Choanocyte flagella create the current to expel it through a single osculum. Note that water enters the sponge through a modified cell known as a porocyte.
Explanation:
Hope this helped, Have a Wonderful Day!!
How do meteorologists indicate different types of weather fronts on a weather map?
Answer:
A stationary front is depicted by an alternating red and blue line with a triangle on the blue portion and half-moon on the opposite side of the red portion of the line. A cold front (or warm front) that stops moving becomes a stationary front.
Explanation:
How does the digestive system interact with the circulatory system?
A. Messages sent as electrical impulses from the digestive system are transported throughout the body by the circulatory system.
B. Nutrients taken in and broken down by the digestive system are carried to various parts of the body by the circulatory system.
C. Oxygen and carbon dioxide are exchanged by organs in the digestive system, and the gases are carried to the rest of the body by the circulatory system.
D. Nutrients and gases are absorbed by organs in the circulatory system. Then, they are transported to all parts of the body by organs in the digestive system.
Answer:
D
Explanation:
the circulatory absorbs nutrients and carries the chemical to signal through endocrine to control the speed of digestion.
I NEED HELP ASAP!!
Which specialized structures transport a large volume of nutrients throughout spermatophytes?
anthers
pistils
roots
veins
Answer: Veins
Explanation:
Answer: Veins.
Explanation: All spermatophytes have veins, which are structures that allow a larger volume of nutrients to be transported.
What a consequence brings the fact that the cerebral cortex is more developed in humans than in animals
Answer: humans have a very high brain-weight-to-body-weight ratio, but so do other animals. ... Other intelligent animals, such as monkeys and dolphins, also have these folds in their cortex, whereas mice have smooth brains, he said. Humans also have the largest frontal lobes of any animal, Holland said.
Explanation:
Help please ASAP !!
How do scientists know that Earth is currently in the middle of an ice age or interglacial period?
Select one
A. Due to climate change , and snow are rapidly melting .
B. Carbon dioxide levels are decreasing , which is causing Earth's temperature to become cooler
If there are 10,000 kCal of energy available in the producers, how much energy would be available to each of following levels of consumers?
Explain what happens to the energy as it moves from producer to the tertiary consumer.
Answer:
Primary Consumer - 1000 kCal
Secondary Consumer - 100 kCal
Tertiary Consumer - 10kCal
Explanation:
Each time a consumer consumes the previous organism, the energy that is consumed is ten percent of the last one. This is called the ten percent rule.
It is known that complex carbohydrates provide more sustained energy over time than simple sugars such as sucrose. Complex carbohydrates are polysaccharides, which are long chains of smaller sugar molecules bonded together. Simple sugars are monosaccharides that contain only one molecule.
Why do complex carbohydrates provide more energy over time versus simple carbohydrates?
Answer:
Complex carbohydrates contain longer chains of sugar molecules than simple carbohydrates. The body converts these sugar molecules into glucose, which it uses for energy. As complex carbohydrates have longer chains, they take longer to break down and provide more lasting energy in the body than simple carbohydrates
Explanation:
Answer:
A.) Complex carbohydrates have more chemical bonds to break than simple sugars, which takes longer for the body to digest and provides more units of energy for the body to use.
Proof:
what do you think the rock in Earth’s mantle is like? Is the mantle made of hard, solid rock or soft, solid rock? Explain your ideas.
Answer:
If the mantle is made out of soft rock, then I think it would melt due to the heat, but if it was hard, it would just burn, so I firmly believe the rock is hard.
Explanation:
Mantle is a layer on planetary body which is made up of minerals. Mantle is solid as it is made up of heavy metals and solid rocks which makes it rigid.
What is Mantle?A mantle is a layer inside a planetary body bounded by a core and on the above by a crust. Mantle is made up of rock or ices, and is generally the largest and most massive layer of any planetary body. Mantles are on the planetary bodies that have undergone differentiation by density.
The mantle is composed primarily of heavy metals, such as iron, nickel, and others. The state of the mantle was described as plastic. Many divide the mantle into further such as the asthenosphere and lithosphere.
Mantle rocks are soft and able to move over the course of millions of years at great depth and pressure. The transfer of heat and material in the mantle helps to determine the landscape of the planet.
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will mark brainiest
In your own words, please explain how the process of meiosis leads to siblings that are not clones of each other.In your own words, please explain how the process of meiosis leads to siblings that are not clones of each other.
Explanation:
The process of cell division by which most of cells divide for growth is called mitosis.
In this process, each cell called mother cell divides to form two identical daughter cells. The daughter cells have the same number of chromosomes as mother cell. It helps in growth and repair of tissues in organisms.
Specific cells of reproductive organs or tissues in animals and plants divide to form gametes., which after fertilisation give rise to offspring.
They divide by a different process called MEIOSES.Which involves two consecutive divisions. When a cell divides by meiosis it produces four new cells instead of just two .
The new cells only have half the number of chromosomes than that of the mother cells.
Hope you understood!
why does individual commit crime?
People commit crimes for many different reasons. whether it is for the excitment and thrill of it or whether they were forced to or peer preasured on by another person. Maybe they robbed a bank cause they needed money or they were under the influence of drugs or alchohol
why is sustainability a problem in agriculture crops ?
A hypothesis is a statement that can be tested through a scientific investigation. What is the purpose of writing a hypothesis? A. Hypotheses help identify the variables. B. Hypotheses suggest new questions for further investigations. C. Hypotheses always match the conclusion. D.
Answer:
B. Hypotheses suggest new questions for further investigations.
Explanation:
Which of these factors is involved in earthquake formation?
Answer:
The factors involved in earthquake formation are: plates moving, rocks breaking and movement below the surface.
. What are some consequences of using fossil fuels?
Answer: Using fossil fuels pollutes the air and increases carbon levels by releasing carbon dioxide when burned, which makes climate change worse.
All of the following statements support the cell theory EXCEPT?
All of the following statements support the cell theory except all cells contain a nucleus. Thus, the correct option for this question is B.
What is the Cell theory?The cell theory was proposed by two famous scientists. i.e. M.J. Schleiden and T. Schwann. There are three assumptions that fall under the cell theory.
All living organisms whether plants or animals are made up of cells. A cell is the smallest unit of all living organisms. It is the basic structural and functional unit of life.Cell theory was further refined by German biologist Rudolf Virchow in 1855. According to him, all cells are arising from pre-existing cells.
According to the three assumptions given above, the one which is not matched as per the options is that all cells contain a nucleus.
Therefore, the correct option for this question is B.
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The statement that is not considered as cell theory is all cells contain a nucleus. The correct option is L.
What is cell theory?Cell theory is basically a biological theory first given in the mid-nineteenth century that states that living organisms are made up of cells, that cells are the basic structural/organizational unit of all organisms, and that all cells originate from pre-existing cells.
According to the cell theory, all biological organisms are made up of cells; cells are the basic unit of life, and all life evolved from preexisting life.
The cell theory is now so well-established that it serves as one of biology's unifying principles.
Theodor Schwann proposed the classical cell theory in 1839. This theory is divided into three parts. The first section asserts that all organisms are made up of cells.
Thus, the correct option is L.
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Please I need help this is due tomorrow
Answer:
When they swap places.
Explanation:
Since they both create new combinations of genes.
i don't know much about this but i do hope it helps!
The diploid number of chromosomes in a species is always what
A diploid cell always contains two complete sets of chromosomes, which is described as 2n.
What is a diploid cell?Two complete sets of chromosomes are present in a diploid cell. The majority of human cells are diploid, with 23 chromosomal pairs totaling 46 chromosomes. This consists of a pair of sex chromosomes and 22 pairs of autosomes. The mother and father each contributed one copy of each pair of chromosomes to the individual.
Through the process of mitosis, diploid cells replicate and maintain the same number of chromosomes by making a copy of each chromosome and dividing their DNA equally among their daughter cells.
Blood cells, skin cells, and muscle cells are examples of diploid cells. These cells are called somatic cells. Different organisms have different numbers of chromosomes.
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#teamtrees
Please support the cause. If we all plant a tree, just 1 each, even 1 per family, it will save us from the future that global warming will bring us without these trees. plant a tree today and say to yourself, "wow i just planted a tree for a very important cause, and i saved someone's life today!"
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Answer:
ok
Explanation:
Answer:
Well said m8. POGCHAMP
Explanation:
#teamtrees #WAP (Water And Plant) #ELM (Every Life Matters)
Explain the structural organization of chloroplasts
Answer:
The chloroplast has an inner and outer membrane with an empty intermediate space in between. Inside the chloroplast are stacks of thylakoids, called grana, as well as stroma, the dense fluid inside of the chloroplast.
Explanation:
Hope it helps.
In the picture,how does the thermal energy definitely flow?
{20 points} {brainliest} pls help <3
Many people don't get enough vitamin D and calcium, which can cause bones to be fragile. The lack of vitamin D and calcium is an example of a
A. hereditary disease.
B. genetic disease.
C. toxicity.
D. deficiency.
Answer:
deficiency
Explanation:
PENN
This organelle removes and recycles waste from the cell
O. Cytoplasm
O. Golgi Apparatus
O. Lysosome
O. Ribosome
Answer: Lysosome
Explanation: A lysosome is a membrane-bound cell organelle that contains digestive enzymes. Lysosomes are involved with various cell processes. They break down excess or worn-out cell parts. They may be used to destroy invading viruses and bacteria. (Hope this helps!)
Part A
If the newly-founded island population of moths in your GENETIC DRIFT Lab
simulation contains 30 (BB) black, 12 (Bb) grey, & 3 (bb) white moths, what is
the frequency of the white alleleb alleles) for the moth-coloration gene in the
population
10%
139
200
Submit
Request Answer
Answer:
0.2 (or 20%)
Explanation:
The allele frequency can be calculated by counting how many times an allele appears in a population and then by dividing this number by the total number of alleles of the gene. In this case,
- Genotype BB = 30 moths >> 60 copies of the B allele
- Genotype Bb= 12 grey moths >> 12 copies of the B allele and 12 copies of the b allele
- Genotype bb= 3 white moths >> 6 copies of the b allele
The total number of copies of the gene is:
Dominant (B) allele = 60 (BB genotype) + 12 (Bb genotype) = 72 B alleles
Recessive (b) allele = 12 (Bb genotype) + 6 (bb genotype) = 18 B alleles
Then, 72 + 18 = 90 alleles
Allele frequencies:
Dominant (B) allele = 72/90 = 0.8 (or 80 %)
Recessive (b) allele = 18/90 = 0.2 (or 20%)
The frequency of the white allele b alleles for the moth-coloration gene in the population - 40%
The frequency of an allele can be calculated by dividing the number of times the allele of interest is observed in a population by the total number of copies of all the alleles at that particular genetic locus in the population
Total number of b alleles = number of alleles present in recessive bb + number of alleles present in heterozygotes Bb
Number of bb individuals = 3 Number of b alleles present in bb = 3 × 2 = 6 Number of Bb individuals = 12 Number of b alleles present in Bb = 12 × 1 = 12 Total number of b alleles = 6 + 12 = 18the frequency of an alele = 18/45
= 40%
Thus, the frequency of the white allele b alleles for the moth-coloration gene in the population - 40%
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In what region of the ocean would you expect to find submarine canyons?
A. Abyssal plain
B. Continental rise
C. Continental shelf
D. Submarine trench
C. Continental shelf - correct choice
Submarine canyons are unequivocally primitive, often found in deep confabulations of the continental shelf.
During cellular respiration, cells convert the energy stored in glucose to make the energy molecule ATP, as shown in the equation. Less than 40% of the energy found in glucose is actually converted into ATP. What happens to the other 60% of this energy
Answer:
the other 60% of energy is stored away for further use in the cell
Explanation:
i hope im right
In the cell from glucose, 40% of energy is utilised to make ATP and the rest 60% is used in the process of making ATP. So 100% of glucose cannot be converted into ATP.
How does ATP form from glucose?Glucose is a major source of energy. It has carbon, oxygen, and hydrogen . Due to the presence of oxygen, it can easily break down to produce energy during times of need.
Glucose is broken down into pyruvate by the process of glycolysis. In this process, the net gain is 2 ATP. Pyruvate converts into acetyl CoA. ATP is required in this process. Acetyl CoA enters the Krebs cycle.
To enter the mitochondria, ATP is required. Acetyl CoA enters the krebs cycle and electron transport chain. The FADH₂ , NADH are broken. Proton gradient is formed due to the electron movement. Then ATP is formed due to the proton gradient across the inner mitochondrial membrane . To make ATP a lots of ATP have used in the process. So net gain of ATP of a glucose is 40% as rest 60% has used in the process .
Hence, 40% of energy of glucose make ATP, and the rest 60% is used in the process of making ATP.
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Why is it necessary to reduce the number of chromosomes in gametes, but not in other cells
Answer:
The reduction of chromosomes in the gametes is necessary to make sexual reproduction possible, in which each parent contributes half of their chromosomes and in fertilization a cell with the complete amount of chromosomes is produced, the zygote.
Explanation:
The reduction of chromosomes to form gametes is done by meiosis, a reductive cell division. Sex cells or gametes are haploid cells, i.e. with half the chromosome charge, as each parent must contribute a gamete in the reproductive process.
The union of the parents' gametes is called fertilization and its product is the zygote, whose chromosome charge is complete or diploid.
For a diploid zygote to be formed, it is necessary for the sex cells or gametes to be haploid, or with half of the chromosomes of the species..
The genetic content built of proteins and nucleic acid found in the nucleus of cells are called chromosomes.
The reduction of the chromosome is essential for sexual reproduction.
In this sort of reproduction gametes from each parent fuse to form offspring.Each parent provides half the number of chromosomes (n) to form a complete offspring with the total set of chromosomes (2n).In the process of gamete formation chromosomes, get halved due to meiosis.The reproductive gametes from both the parent combine via fertilization and form the diploid offspring.Therefore for a diploid offspring to be formed the gametes need to be haploid.
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