The higher risk for breast cancer in obese women after menopause is thought to result mainly from chronic exposure of
Answer;
Estrogen
The higher risk for breast cancer in obese women after menopause is thought to result mainly from chronic exposure of Estrogen.
Explanation;
Being overweight is associated with increased risk of breast cancer, especially for women after menopause.
Fat tissue is the body's main source of estrogen after menopause, when the ovaries stop producing the hormone.
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What is the role of the Mitochondria? Thanks!
Dinobryon is a species of protozoa that reproduces asexually. How can this asexual reproduction be harmful to the species?
what chemical compound is crucial to marine life and how it is disappearing
The answer is nitrogen. It is usually regarded as a growth-limiting factor for primary producers such as phytoplankton. It is usually taken up in the ‘fixed’ form of ammonium. It is converted from dissolved nitrogen gas in ocean surface to a ‘fixed’ form by particular microbes. Due to increasing global temperatures, as a result of global warming, the ocean temperatures have increased hence oceans hold less dissolved oxygen than they used to. The low oxygen concentration in the oceans induces the loss of nitrogen from oceans through increased activity of micro-organisms that are significant in denitrification. This rate becomes higher than that of nitrification that fixes nitrogen in the oceans.
16. In some species of balloon flies, males spin balloons of silk and carry them while flying. If a female approaches one of the males and accepts his balloon, the two will fly off to mate. This type of behavior is an example of (1 point) aggression. territorial defense. courtship. language.
The right option is Courtship
Courtship is a behavior in which different
species interact and select their partners for mating which leads to
reproduction. Most times, the female specie chooses the desired male to mate with before
copulation. Various behaviours such as display
of strength, dancing and vocal utterance are often used during courtship. For the question given above,the type of behavior displayed by the species of balloon flies is an example of courtship.
The right option is Courtship
Courtship is a behavior in which different
species interact and select their partners for mating which leads to
reproduction. Most times, the female specie chooses the desired male to mate with before
copulation. Various behaviours such as display
of strength, dancing and vocal utterance are often used during courtship. For the question given above,the type of behavior displayed by the species of balloon flies is an example of courtship. yw dawg
Choose all the answers that apply.
Organisms within the same species _____.
() have similar physical characteristics
() can breed and create fertile offspring
() have similar behaviors
() can breed and create sterile offspring
() have similar morphology
The answer is 2 and 5
* can breed and create fertile offspring
* have similar morphology
Species is defined as group of organisms that are of the same morphology (may have multiple lines within the group) and has the ability to mate and produce viable, fertile offspring.
Answer:
The answers are options 2 and 5.
Explanation:
The focuses ought to be that it can breed and make fruitful posterity, have comparative morphology .Species is characterized as a gathering of life forms that are of a similar morphology may include various lines inside the gathering and can mate and create reasonable, ripe posterity.
In what organelle does cellular respiration take place name two storage organelles
In a _____________ wave, vibrations are perpendicular to the direction of the wave motion. In a _____________ wave, vibrations are parallel to the direction of the wave motion.
Answer:
1. Transverse wave
2. Longitudinal wave
Explanation:
In a transverse wave, vibrations are perpendicular to the direction of the wave motion. In a longitudinal wave, vibrations are parallel to the direction of the wave motion.
In the transverse wave, crest and trough are the parts of a wave. The crest is a part where the displacement is maximum. While the trough is the part where the displacement is minimum.
In the longitudinal wave, the compression and the rarefaction are the part of a wave. In compression, the particles are very close to each other. While, in rarefaction, the particles are far apart.
Why are antibiotics frequently added to sabouraud agar for isolating fungi from clinical samples?
Antibiotics such as cycloheximide are frequently added to sabouraud agar for isolating fungi from clinical samples because most fungi grows and multiply slowly at least compared with bacteria that grows rapidly after 24hours. Incorporation of antibiotics into the agar will prevent the growth of bacteria and also other environmental fungal such as Aspergillus spp.
Coronary heart disease is caused by a buildup of plaque in the arteries that supply blood to the heart. when the flow of blood to the heart is restricted or blocked, the heart can be damaged due to a lack of oxygen. further, if a large piece of plaque buildup gets dislodged from an artery wall, it can get stuck in other arteries throughout the body, including arteries in the brain. for simplicity, let's assume that the artery is cylindrical with a radius of r. the flow rate of a viscous fluid is given by poiseuille's law q=(π/8)(δp/ηl)r4.
________ disease involves the heart, peripheral vascular system and brain while_______ disease involves the eyes kidney, and large blood vessels.
Cardiovascular disease affects the heart, peripheral vascular system, and brain, while diabetic retinopathy often impacts the eyes and kidneys, alongside large blood vessels.
Cardiovascular disease is a class of diseases that involve the cardiovascular system, including diseases of the coronary arteries, carotid arteries, and peripheral arteries. It is known as the leading cause of death worldwide. Conditions like hypertension and atherosclerosis are common causes of cardiovascular diseases, which can lead to stroke and peripheral artery disease.
In ________, the interaction between two species harms both of them. coevolution competition mutualism parasitism symbiosis
What does absorption mean?
A - breakdown of molecules
B - enzyme activity on nutrients
C - network of chemical reactions that occur in the body
D - process of assimilating
Absorption is the biological process where digested nutrients are taken into the bloodstream, mainly occurring in the small intestine.
Explanation:Absorption in the context of biology, particularly the digestive system, refers to the process in which substances pass into the bloodstream or lymph system to circulate throughout the body. After food is broken down into small nutrient molecules through mechanical and chemical digestion, the molecules are absorbed by the blood. This process primarily takes place in the small intestine, where nutrients are assimilated into the body to be used for energy, growth, and repair.
True or False
The female determines the sex of mammals.
which of the following is true ? 1. All populations in an ecosystem form the community. 2. A habitat represents all the biotic factors in an ecosystem. 3. The amount of nutrients in soil is an example of a biotic factor. 4. Only one population can live in a habitat at a time
cells that perform a specific function in an organism
Answer:
Cells that perform a specific function:Cell serves as the basic building blocks for building the structure or the body of the living organisms. Now, certain type or specific number of cells come closer and arrange themselves in such a sequence that they need to perform a unique or specific task by making up a whole organ structure.
Explanation:
Example of cells that perform the specific function inside the living organisms body:There are certain cells inside the human body which makes up a single organ and then performs the whole function specifically by themselves, as we have the "myocardial myocytes". These are the specific type of cells which are required for the heart's cardiac muscles to develop or grow in a given pattern. As these cells are specialized for making up or building up of the cardiac muscles which in turns results in the heart structure. And performs the basic function of supply of blood and the required materials i.e nutrients to the different cells and organs.
Vascular plants, like this one, take in water through the roots. How does the water get to the leaves, where photosynthesis happens?
How does artificial selection differ from natural selection?
Natural selection is a nature-made selection, and artificial selection is a man-made selection. Natural selection is the work of nature itself and no human interaction is involve in this process. Plants and animals breed according to the flow of nature. While on the other hand artificial selection produces diversities of organisms such as improved crops and livestock.
What creates a magnetic field?
A magnetic field is created by moving electrical charges. Thus, the correct option for this question is B.
What do you mean by Magnetic fields?The magnetic field may be defined as a type of vector field that significantly describes the influence of a magnet on moving electric charges, electric currents, and magnetic materials. It involves the force of magnetism across it.
The magnetic field is generally produced by the action of magnet or electric charges in motion. The magnetic field has defined as a region around a magnetic material or moving electric charge through which the force of magnetism significantly acts over it. Magnetic fields are illustrated by utilizing magnetic field lines.
Therefore, a magnetic field is created by moving electrical charges. Thus, the correct option for this question is B.
To learn more about Magnetic fields, refer to the link:
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Which of the following can be cofactors?
organic molecules
inorganic molecules
anions
cations
Answer:
The correct options are: organic molecules and cations
Explanation:
Cofactors are the non-protein ions or molecules that combine with the inactive enzyme, called the apoenzyme to form the holoenzyme.
Cofactors can be classified into two categories: 1. the inorganic ions or the metal ions and 2. the coenzymes.
Coenzymes are the complex organic molecules that are of two types: 1. the cosubstrate; 2. prosthetic group
Therefore, Cofactors can be either inorganic metal ions or organic molecules.
Which type of heart failure would you suspect with m. k.? explain the pathogenesis of how this type of heart failure develops. include an overview of the disease and it's effects in the u.s. population?
You traced a molecule of urea from the renal artery out of the body. how would the steps of this tracing differ if the urea were recycled
Describe the error in the conclusion. given: there is a linear correlation between the number of cigarettes smoked and the pulse rate. as the number of cigarettes increases the pulse rate increases. conclusion: cigarettes cause the pulse rate to increase.
According to the theory of global warming, which statement is the MOST LIKELY reason for the current climate change?
In what way do the respiratory and circulatory systems depend on each other
The circulatory system consists of an entire network of blood cells that is being pumped in the entire body throughout and the respiratory system has the main function to exhale carbon dioxide and inhale oxygen for providing energy.
Both circulatory and respiratory systems work together for transportation of oxygen to all the organs and muscles of the body. The heart pumps the oxygen rich blood from lungs and excretes or disposes the waste in the blood to the lungs to breathe and exhale out of the body.
Answer:
Whatever the other guy said
Explanation:
Which other system in the body works closely with the kidneys to regulate arterial blood ph?
The correct answer is the respiratory system.
The pH of the extracellular fluids (blood) can be controlled by separately regulating the partial pressure of CO2, which determines the carbonic acid concentration via respiration and the bicarbonate ion concentration in the extracellular fluids via renal system. Control of the carbonic acid concentration in the blood is achieved by changes in the rate and depth of breathing. Breathing releases or retains CO2 (and thus carbonic acid) in the blood plasma and thus, changes its pH.
The head of a giraffe is 2.0 m above its heart and the density of the blood is 1.05 103 kg/m3. what is the difference in pressure between the giraffe's heart and head? (fortunately, a giraffe's neck has a special circulatory system to adapt to this neck length, producing an even flow of blood to the head.)
The difference in pressure between the giraffe's heart and head is :
20.58 kPa Position of Giraffe head in relation to its heartGiven that the head of the giraffe head is placed at a higher position the blood pressure in the head will be higher than the blood pressure in the heart. and
Pressure in the Giraffe is directly related to ; density , gravity and height of the giraffe
Therefore pressure = ρ*g*h
= 1.05 * 10³ * 9.8 * 2
= 20580 pa = 20.58 kPa
Hence we can conclude that the difference in pressure between the giraffe's heart and head is 20.58 kPa.
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In this phase, chromosomes arrive at the poles and a nuclear envelope begins the develop around them:
What three lifestyle factors decrease the risk of cardiovascular disease development?
What does the author mean when he refers to reverse engineering the brain?
a.studying brain activity by observing a person's actions
b.studying the electrical impulses of the brain and then comparing them to an average circuit board
c.studying the workings of the brain by disassembling its components and then reassembling them
d.studying the anatomic structure from the back of the brain to the front?