The fetus can also kick, blink, and grasp. By the second trimester, all structures and body organs have been formed, but are not fully functional, like the kidneys and lungs. The kidneys are the organs that help to filter blood.
How many trimesters are there?Pregnancy has three trimesters, each of which is marked by specific fetal developments. A pregnancy is considered full-term at 40 weeks.
In humans, an unborn baby which develops and grows inside the uterus (womb). The fetal period begins 8 weeks after fertilization of an egg by a sperm and ends at the time of birth.
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A student is performing a gram stain of a mixed culture of both
e. coli and s. aureus and he forgets to decolorize with ethanol. what should his slide look like?
Both types of bacteria appear to be dark purple (stained with gentian violet), both will have a gram-positive appearance.
In the gram stain, two dyes are used: gentian violet and Fuschia pink, the two stains are separated by alcohol bleaching.
Alcohol bleaching (+ acetone) is the most important step in coloring. It must be fast in order to eliminate the rich lipid wall of the gram negative bacteria that has retained the staining, to then be colored by the pink Fuschia.
Beware, the abuse of alcohol will result in all Gram negative bacteria.
Which is bigger a minha bird or a parrot?
What term refers to organisms magnified with a microscope
The organisms magnified with a microscope is called as microorganism.
What are Microbes?
It is a tiny unicellular microscopic organisms such as Bacteria, Fungi, Protists, Viruses, Archaea.
Bacteria are single-celled organisms having no nucleus, no membrane bound organelle and cell wall made of peptidoglycan.
Archaea are also single-celled organisms with no nucleus. Its outer wall have unique lipid which provide them protection in harsh environment.
Fungi are either single-celled or multicellular organisms having nuclei and membrane bound organelles like plant and animals. The cell walls made up of chitin.
Protists are either single-celled or multi-cellular with nuclei. Some of the parasitic protists can cause diseases like malaria, dysentery, and giardia
Viruses are made of nucleic acids, proteins, and lipids. They are host dependent and can produce when it is in the host. For example, HIV which infects a specific immune cells.
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Epstein (1965) presented observers photographs of a quarter, dime, and half-dollar that were all equal in physical size. his results showed that _____.? a. ?familiar size is most effective when other information about depth is absent b. ?the quarter was judged to be closer than the dime, when viewed monocularly c. ?accommodation is a stronger cue than any pictorial depth cue d. ?familiar size is most effective when the observer has both eyes open
What characteristics do land plants share with green algae?
Minerals and mining museum is long and narrow in order to
The correct explanation to this is:
The minerals and mining museums is long and narrow in order to “take advantage of orientation and cross ventilation”.
When the museum is narrow, this makes the skin which is separate from the structural grid seems to be alive in its sensitivity to the context. Additionally, the rammed-earth walls fitted with wind traps keep the interior space about 10 degrees Celsius cooler than the air outside.
just a few hours after the birth of a baby, the mammary glands start producing milk. which hormone stimulates this event
Answer:
The correct answer is the prolactin hormone.
Explanation:
Prolactin (PRL) or luteotropic hormone is a hormone, known for its different roles in enabling mammals, especially females. It is secreted in response to nursing, ovulation or mating, from the pituitary gland. Prolactin is manufactured by the pituitary gland in the brain.
Prolactin is majorly used to help women producing milk after a few hours of childbirth. The stimulation of the nipples and mammary gland leads to the release of prolactin.
Thus, the correct answer is the prolactin hormone.
Using an example of your choice, explain why biotechnology can be both helpful and harmful to society and/or the environment.
A cluster of symptoms that regularly occur together is known as a:
what is an example of a job a biologist would have ?
Occurs when layers of materials, such as extra sheets or blankets, are placed over the surgical mattress or padding, diminishing the pressure-reducing properties of the surfaces
Shear occurs when layers of material, such as extra sheets or blankets, are placed over the mattress or padding. Hence the correct option is b.
Shear is a phenomenon that occurs when layers of material, like additional sheets or blankets, are placed over a mattress or padding. This happens when the upper layers of the material move in a parallel direction to the surface below. In the context of healthcare, shear forces can be problematic for patients, especially those with limited mobility or those bedridden.
When a person is moved or repositioned in bed, the skin can experience shear forces, potentially leading to skin injuries, particularly in areas where bones are close to the skin's surface. It's crucial to address shear forces in healthcare settings to minimize the risk of complications, and healthcare professionals often employ various strategies such as proper positioning and the use of specialized support surfaces to mitigate the impact of shear on the skin. Hence the correct option is b.
Complete question:
_____ occurs when layers of material, such as extra sheets or blankets, are placed over the OR mattress or padding?
A. Immersion
B. Shear
C. Friction
D. Negativity
Which example describes migration caused by overcrowding?
Migration caused by overcrowding is exemplified by 'B. Hordes of rats flee a city when their numbers exceed the carrying capacity', as it reflects the population density reaching a point where resources are insufficient, necessitating migration to find more suitable environments.
The example that describes migration caused by overcrowding is: B. Hordes of rats flee a city when their numbers exceed the carrying capacity. This represents a situation where the population density of the rats becomes too high, leading to insufficient resources to support them, prompting a migratory response to seek out new areas with more available resources.
Migration is a natural behavior seen in many species and can be driven by various factors, including the search for food, mating opportunities, and more suitable climatic conditions. Animals may exhibit different types of migration, such as obligate migration, where species always migrate, facultative migration, where they only migrate under certain circumstances, and incomplete migration, where only part of a population migrates while the rest remain.
The sugar glider in australia and the flying squirrel in north america are both small mammals with large expanses of loose skin between their fore- and hind-limbs allowing them to glide from tree to tree within their respective forest habitats. these two species are distantly related but are very similar in their overall appearance. the evolutionary explanation for their similarity is that
Think about the structure and function of your backbone. why do you think there are discs of cartilage between the bones in the vertebral column?
If a source of sound waves is rapidly approaching a person, the sound heard by the person appears to have
Answer choices are:
a. a period higher than the original period.
b. a pitch lower than the original pitch.
c. an amplitude lower than the original amplitude.
d. a frequency higher than the original frequency.
____________________________________________________________
Correct answer choice is:
D. A frequency higher than the original frequency.
____________________________________________________________
Explanation:
This is a true case of Doppler's effect. The Doppler effect can be defined as the effect originated by a traveling source of waves in which there is a visible higher variation in pulse for observers towards what the source is progressing and a visible descending shift in rate for observers from what the source is dropping.
ugh yuck biology .....help if you can .-.
The three systems that work together most closely to regulate blood pressure, osmolarity and ph are the _________ systems.
a.cardiovascular,integumentaryandurinary
b.respiratory, lymphatic and cardiovascular
c.urinary,respiratoryandcardiovascular
d.cardiovascular, digestive and urinary
e.urinary,lymphaticanddigestive
Hanging from the posterior border of the soft palate is a cone-shaped muscular structure called the ____.
Increased secretion of aldosterone would result in a(n) ______________ of blood ____________? increase, potassium decrease, volume increase, calcium levels decrease, ph increase, sodium
Describe the impact of a waterborne pollutant on an aquatic community. write a 100-word report on how that pollutant affected aquatic life, what the effect was, and whether the effect is linked to biomagnification.
Water pollution can have a significant impact on aquatic communities, affecting aquatic life and the overall ecosystem. Pollutants such as heavy metals can biomagnify in the food chain, leading to higher concentrations in predatory fish species. This can have harmful effects on the fish themselves, as well as on the organisms that consume them.
Explanation:Water pollution is the contamination of water by an excess amount of a substance that can cause harm to human beings and/or the ecosystem. Pollutants can enter water supplies from point sources, which are readily identifiable and relatively small locations, or nonpoint sources, which are large and more diffuse areas. Waterborne pollutants can have a significant impact on aquatic communities, affecting aquatic life and the overall ecosystem. For example, pollutants such as heavy metals like mercury and cadmium can biomagnify in the food chain, leading to higher concentrations of these toxins in predatory fish species. This can have harmful effects on not only the fish themselves, but also on the birds or humans that consume them. Biomagnification is a process where the concentration of a toxin increases as it moves up the food chain.
What reagent may be sprayed at a crime scene to identify blood
A plant that is homozygous for red flowers is crossed with a plant that is homozygous for white flowers. in the case of incomplete dominance, the flowers of the offspring will be
Incomplete dominance is defined as the genetic condition, in which a reduced ratio of the dominant allele is expressed. The offspring produced by the purebred parents is an intermediate between the two genotypes.
Let the genotype for purebred red flowers be - RR
Let the genotype for purebred white flowers be - WW
The cross between the true-breeding parent will is RR x WW.
The cross between purebred red and purebred white flowers will result in 100% pink progeny due to incomplete dominance.
Incomplete dominance is the phenomenon in which the dominant allele is expressed in the reduced ratio, such that the dominant allele does not mask the recessive allele completely, resulting in an intermediate offspring.
Therefore, the incomplete dominance will result in all the pink flowers, an intermediate between red and white flowers.
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Blood type is an example of a trait that's inherited by
A. incomplete dominance.
B. gender-specific alleles.
C. polygenic inheritance.
D. codominance.
Blood type is an example of a trait that's inherited by co-dominance.
CO-DOMINANCE:
Co-dominance is a type of inheritance pattern in which the alleles of a gene are neither dominant nor recessive over one another, hence, are simultaneously expressed. Co-dominance goes against the mendelian pattern of inheritance, which states that the dominant allele is expressed over the recessive allele. In co-dominance, both alleles are physically expressed. An example is blood type inheritance where alleles A and B are both expressed in an individual with AB genotype.Learn more about blood type: https://brainly.com/question/17058567?referrer=searchResults
On a laboratory exam a student is asked to determine if the cell under a microscope are plant cell or animal cells. Where might the student look for
All cells in your body do not exhibit all of the traits you have, yet they all have the same DNA. Explain this.
What is the appropriate technique to stimulate a baby to breathe?
Justin was involved in an automobile accident and sustained a serious injury to his head. when asked about the accident, justin could not remember what happened or how the accident occurred. justin seems to be suffering from:
food chains and webs not only describe the order organisms are eaten, but they also describe the ----. 1. flow of energy in an ecosystem, 2. importance of the ecosystem, 3. health of the ecosystem, 4. animals that are all related
How should food be stored to avoid cross-contamination:
a. store ready-to-eat food on the bottom shelf, below raw meat
b. store meat with a higher cooking temperature below meat with a lower cooking temperature
c. store meat with a lower cooking temperature below meat with a higher cooking temperature
d. raw meat can be stored near ready-to-eat food if covered. submit answer?
Food should be stored to avoid cross-contamination by (A), store ready-to-eat food on the bottom shelf, below raw meat.
What is cross-contamination?Cross-contamination is the transfer of harmful bacteria from one food to another. This can happen when raw meat juices drip onto other foods, or when utensils or cutting boards are not properly cleaned.
To avoid cross-contamination, it is important to store raw meat on the bottom shelf of the refrigerator, below ready-to-eat food. This will help to prevent the juices from raw meat from dripping onto other foods.
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is the rickets disease a pathogen, if so how