Answer:
Why is internal Fertilisation important to animals?
Internal fertilization has the advantage of protecting the fertilized egg from dehydration on land. The embryo is isolated within the female, which limits predation on the young.
Explanation:
compared with an endotoxin, would a bacterial exotoxin generally be more likely to function after it had been significantly heated?
No, because exotoxins are heat-labile and less resistant to heating than endotoxins.
Bacterial toxins are traditionally classified as exotoxins or endotoxins. While endotoxins are Gram-negative bacteria membrane compounds that cause an inflammatory response in the host, exotoxins are secreted proteins that act locally and at a distance from the bacterial colonization site.
Bacterial endotoxins, which are found in the outer membrane of gram-negative bacteria, are members of the lipopolysaccharide class of phospholipids (LPS). LPS are not gram negative bacteria's exogenous products. LPS is released by bacteria after the cell has died and been lysed. The most toxic virulence factor of the pathogenic bacterium Pseudomonas aeruginosa is Pseudomonas Exotoxin A (PE). This review summarizes current knowledge about the pathways of PE intoxication.
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The diagram shows a plant cell and an
animal cell. Which is most likely true about
both cells?
Animal and plant cells have many differences concerning their structure. However they also chare some characteristics, like having mitochondria. B is correct. Both cells use the same molecules fro energy.
What are the differences between animal and plant cells?
Both animal and plant cells are eukaryotic. They carry their genetic material in the nucleus and mitochondria. Organelles are located in the cytosol, and both of them are surrounded by a cell membrane.
However, they have some differences:
Cell wall: A rigid structure that provides support and protection.- Animal cells do not have a cell wall. They are only surrounded by the cell membrane, which is flexible so they can adopt different shapes.
- Plant cells have a wall, so their shape is usually prismatic and regular. The cell wall is composed mainly of cellulose.
Chloroplast: these are organelles that accumulate chlorophyll.- Animal cells do not have chloroplasts because they do not photosynthesize.
- Plant cells have chloroplasts, and they are in charge of the photosynthesis process that allows plants to release oxygen. These organelles use solar light as a source of energy.
Vacuoles:- Animal cells have many small vacuoles whose function is to store water, ions, and waste intracellular substances.
- Plant cells have a unique big-sized vacuole that might occupy almost 90% of the cell. Their principal function is to store water and keep the turgidity. When the vacuole gets empty, the plant loses rigidity.
Other differences are:
- The animal cell has centrioles, while the vegetable cell does not.
- Plasmodium, chromoplasts, and glyoxysomes are present in the vegetable cell but not in the animal cell.
Option B is correct. Both cells use the same molecules fro energy.
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Explain the process that links the physical sensory world and
the brain for each of the senses (vision, hearing, taste, smell,
and touch).
The process that links the physical sensory world and the brain for each of the senses (vision, hearing, taste, smell, and touch) is known as transduction.
Here's how transduction works for each of the senses:
1. Vision: The eye transduces light energy into neural impulses, which are then transmitted to the brain via the optic nerve.
2. Hearing: The ear transduces sound waves into neural impulses, which are then transmitted to the brain via the auditory nerve.
3. Taste: Taste buds on the tongue transduce chemical signals from food into neural impulses, which are then transmitted to the brain via the gustatory nerve.
4. Smell: Olfactory receptor cells in the nose transduce chemical signals from odors into neural impulses, which are then transmitted to the brain via the olfactory nerve.
5. Touch: Sensory receptors in the skin transduce physical pressure, temperature, and pain into neural impulses, which are then transmitted to the brain via various sensory nerves.
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Which of the following is NOT a harmful side effect caused by erosion?
Question 3 options:
A)
loss of farmland
B)
dust storms
C)
landscape changes
D)
earthquakes
Answer:
the answer is D) earthquakes
Explanation:
soil erosion involves taking away of the top layer of the soil.... as for earthquakes.. these are caused by tilting and sliding of tectonic plates of which soil erosion takes no place in causing such actions
Answer:
Option D) Earthquakes.
Is your answer.
Explanation:
Hope you have a great day.
Which is the definition of the equator?
Answer:
The equator is an imaginary line that splits the earth into two sections, the north and south hemispheres. The closer you are to the equator, the more hot it is.
Which data point is an outliner ? What may have happened to this batch of shoes ?
Which statement below accurately describes how sweating helps maintain homeostasis?
A. Skin cells absorb water into the body, which absorbs heat and cools the cells
B. Water on the skin evaporates into the air, pulling heat from the body
C. Water condenses on the skin and absorbs heat from the body
D. Water on the skin evaporates into the air, pulling heat out of the air around the body
Answer:
Water on the skin evaporates into the air, pulling heat out of the air around the body -describes the process of evaporative cooling.
Explanation:
ect the best answer for the question. 3. Which statement below accurately describes the process of evaporative cooling? A. Water on the skin evaporates into the air, pulling heat from the body B. Water on the skin evaporates into the air, pulling heat out of the air around the body C. Water condenses on the skin and absorbs heat from the body D. Skin cells absorb water into the body, which absorbs heat and cool the cells
why is fertility testing initiated with sperm analysis of the male partner?
Fertility testing is initiated with sperm analysis of the male partner because male factor infertility accounts for almost 40% of infertility cases. A sperm analysis is a quick and non-invasive test that provides valuable information about the quantity, quality, and motility of the sperm. It can also detect any abnormalities in the shape and size of the sperm, which can affect fertilization.
Furthermore, a sperm analysis can help identify any underlying medical conditions that may be contributing to infertility, such as low testosterone levels, infections, or blockages in the reproductive system. Once the male partner's sperm analysis is complete, further testing can be initiated to determine if there are any issues with the female partner's reproductive system.
In conclusion, initiating fertility testing with a sperm analysis of the male partner is a crucial step in diagnosing and treating infertility. It helps identify male factor infertility and any underlying medical conditions that may need to be addressed to improve the chances of conception.
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which of the following is true of the life cycle of mosses? a. the haploid generation grows on the sporophyte generation. b. spores are primarily distributed by water currents. c. antheridia and aronia are produced by gametophytes. d. the sporophyte generation is dominant.
The correct answer is (d) the sporophyte generation is dominant.
Mosses are little, dense green plants that grow in clumps or mats in damp areas. The life cycle of mosses is relatively basic, with a conspicuous haploid gametophyte stage and a less conspicuous diploid sporophyte stage, with spores as the primary means of reproduction. The sporophyte and gametophyte generations both existing in separate stages. However, in mosses, the gametophyte generation is prevalent or prominent, whereas the sporophyte generation is less conspicuous or subordinate. The haploid gametophyte, which is photosynthetic and free-living, produces sex organs, and then, the diploid sporophyte grows out of the gametophyte from the fertilized egg (zygote).Finally, the correct option is (d) the sporophyte generation is dominant.
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Describe the structure and function of the nephron, including an explanation of the processes of secretion, filtration, and reabsorption. Indicate the primary location in the nephron where each process occurs and explain how, in total, these processes coordinate with the cardiovascular system to help the body maintain homeostasis.
The nephron is the filtration unit of the kidney.
It consists of a tubule that is connected with collecting duct at one end and a cup-shaped structure at the other end. This cup-shaped structure is called ‘Bowman’s capsule’. Every Bowman’s capsule contains a cluster of capillaries, called ‘Glomerulus’, within the cup-shaped structure. The blood enters into Glomerulus through afferent arteriole of the renal artery and leaves it through the efferent arteriole. Together, the glomerulus and its surrounding Bowman's capsule are called a renal corpuscle.
Blood enters the glomerulus through a small artery supplying the glomerulus with unfiltered blood called the afferent arteriole. Another vessel, a small artery carrying filtered blood away from the glomerulus, is called the efferent arteriole. These two arterioles play a key role in helping the glomeruli's capillaries perform the process of ultrafiltration.
Nephron starts from Bowman’s capsule and consists of the following parts: proximal convoluted tubule (in the renal cortex), the loop of Henle (in the renal medulla), and distal convoluted tubule (in the renal cortex).
i) proximal convoluted tubules (PCT): it is a proximal part of renal tubules next to Bowman’s capsule. It is lined with microvilli. Maximum reabsorption of water, glucose, amino acids and electrolytes takes place here.
ii) The loop of Henle: It is U shaped middle portion of renal tubules. It is composed of ascending and descending loop. Ascending loop is thick-walled and impermeable to water while the descending loop is thin-walled and permeable to water. The countercurrent mechanism is a crucial role of the loop of Henle.
iii) Distal convoluted tubules (DCT): It is the distal part of renal tubules that lead to collecting ducts. It is similar in structure and function with PCT. Functioning of Nephron:-
1. Filtration: Filtration of blood takes place in Bowman’s capsule from the capillaries of the glomerulus. The filtrate passes into the tubular part of the nephron. This filtrate contains glucose, amino acids, urea, uric acid, salts and a major amount of water.
2. Re-absorption: As the filtrate flows along the nephrons, substances such as glucose, amino acids, salts, and water are selectively re-absorbed into the blood by capillaries surrounding the nephron tube the leadule.
The amount of water re-absorbed depends on the need of the body and also on the amount of wastes to be excreted.
3. Urine: The filtrate which remains after re-absorption is called urine. Urine contains dissolved nitrogenous waste, i.e. urea and uric acid, excess salts and water. Urine is collected from nephrons by the collecting duct to carry it to the ureter.
The nephron is the filtration unit of the kidney.
It consists of a tubule that is connected with collecting duct at one end and a cup-shaped structure at the other end. This cup-shaped structure is called ‘Bowman’s capsule’. Every Bowman’s capsule contains a cluster of capillaries, called ‘Glomerulus’, within the cup-shaped structure. The blood enters into Glomerulus through afferent arteriole of the renal artery and leaves it through the efferent arteriole. Together, the glomerulus and its surrounding Bowman's capsule are called a renal corpuscle.
Blood enters the glomerulus through a small artery supplying the glomerulus with unfiltered blood called the afferent arteriole. Another vessel, a small artery carrying filtered blood away from the glomerulus, is called the efferent arteriole. These two arterioles play a key role in helping the glomeruli's capillaries perform the process of ultrafiltration.
Nephron starts from Bowman’s capsule and consists of the following parts: proximal convoluted tubule (in the renal cortex), the loop of Henle (in the renal medulla), and distal convoluted tubule (in the renal cortex).
i) proximal convoluted tubules (PCT): it is a proximal part of renal tubules next to Bowman’s capsule. It is lined with microvilli. Maximum reabsorption of water, glucose, amino acids and electrolytes takes place here.
ii) The loop of Henle: It is U shaped middle portion of renal tubules. It is composed of ascending and descending loop. Ascending loop is thick-walled and impermeable to water while the descending loop is thin-walled and permeable to water. The countercurrent mechanism is a crucial role of the loop of Henle.
iii) Distal convoluted tubules (DCT): It is the distal part of renal tubules that lead to collecting ducts. It is similar in structure and function with PCT.
The filtration unit of the kidney is known as the nephron. It is consisting of tubule that is linked with a collecting duct at one side and a cup-shaped structure at the other side. This cup-shaped structure is known as‘Bowman’s capsule’.
What is nephron?It is the functional and structural unit of the kidney, it is a filtration unit of the kidney having glomerulus, and a tubule.
Filtration: Blood filtration is takes place in Bowman’s capsule from the capillaries of the glomerulus.
Reabsorption: When blood filtrate flows along the nephrons, molecules of amino acids, salts, glucose, and water are by selection re-absorbed into the blood by capillaries.
Secretion: hydrogen ions and waste ions flows from the capillaries into the renal tubule, this process is known as secretion.
Therefore, nephron is the filtration unit of the kidney.
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How many sugar molecules make up simple carbohydrates?
1 or 2
2 or 3
3 or 4
4 or 5
Answer:
1 or 2 sugar molecules make up simple carbohydrates
Find the link to the video here: "The No Impact Man"
The film, "The No Impact Man", follows Colin Beavan and his family during their
year-long experiment to have zero impact on the environment. After watching a brief
video detailing the Beavan family's efforts to reduce their carbon footprint, how do you
think you would live such a radical lifestyle as his?
In one paragraph below (at least five sentences), reflect on what parts of your
life you would have to change to be like the "No Impact Man drastically." How long do
you think you could sustain living that lifestyle? Would the people in your life support
your decision to live in such a way? Is it worth it for the environment or would a
compromise make more sustainable choices better than having ZERO IMPACT on the
environment for an entire year?
1) Living like Colin Beavan and his family is not impossible, however, it sure is difficult. Such a lifestyle can be made even easier with government programs put in place to help.
2) Living with minimal impact on the environment is not impossible. Many humans are already doing same. The financial sector in first work countries have already put measurs in place to encourage such kind of living among corporate individuals. It is hoped that when corporations catch the vision, it will trickle down to others. It's all about Environmental Protection.
What is the importance of Preserving the Environment?We conserve for three primary reasons:
To restore some of the harm caused by people while still preserving the environment for future generations. To preserve species variety for our own and wildlife's benefit. To create chances for environmental education and enjoyment.Learn more about Environmental Protection:
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14. Why doesn't the inner core have convection?
Answer:
The inner core has subsequently been growing at the rate of around 1mm a year as iron crystals freeze and form a solid mass. The heat given off as the core cools flows from the core to the mantle to the Earth's crust through a process known as convection.
Explanation:
I hope this helps you.
Could someone help me with this, please?
The carbon cycle depicts the movement of carbon on Earth in its elemental and combined states. Carbon exists as carbonates in minerals and as carbon dioxide gas in the atmosphere in its combined state as diamond and graphite.
What are the steps in the carbon cycle?Plants absorb carbon from the atmosphere in order to perform photosynthesis.Humans consume the oxygen released by plants and emit carbon dioxide through respiration.Animals consume these plants, and carbon is bioaccumulated in their bodies.When these animals and plants die, carbon is released back into the atmosphere as they decompose.Some of the carbon that is not re-emitted into the atmosphere is converted into fossil fuels.These fossil fuels are then used for man-made activities that release additional carbon into the atmosphere.To learn more about carbon cycle refer to :
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Which of the following group behaviors is primarily offensive, rather thandefensive?A. HuntingB. FlockingC. SwarmingD. Herding
In ecology, group behaviors are coordinated behaviors involving a population (a group of organisms of the same species), which allow for the survival of the group.
Some benefits that can be obtained from group behaviors are better defense, better obtaining of resources, and finding a mate easily.
Of the options, the behavior that is primarily offensive is hunting, because is not about protecting the group, but about obtaining resources.
This means A. Hunting, would be the right answer.
Anyone know what is the answer pls ?
Answer:
1. Viruses 2. ? 3. Viruses 4. ? 5. Immunity 6. Vaccine
Explanation:
As you are sleeping, which of the following is true about the body systems?
Answer: I hope this helps
Explanation:
1. Your immune system strengthens
2. Your brain releases growth hormone for you to grow
3. Circadian Rhythms
4. Appetite and Metabolic Regulation
5. Adenosine Breakdown
6. Promotes Good Mood
secretory proteins are trafficked to the er where they are properly folded before being secreted by the cell. what would happen to secretory proteins if the srp was removed?
If the signal recognition particle (SRP) is removed, the trafficking and proper folding of secretory proteins in the endoplasmic reticulum (ER) would be disrupted. The SRP is a ribonucleoprotein complex that plays a crucial role in targeting proteins to the ER for secretion.
When a secretory protein is synthesized on the ribosomes in the cytosol, the SRP recognizes a specific signal sequence within the nascent protein. The SRP binds to this signal sequence, temporarily halting protein synthesis. The SRP then interacts with the SRP receptor on the ER membrane, facilitating the targeting of the ribosome-nascent chain complex to the ER.
Once the ribosome-nascent chain complex reaches the ER, the SRP is released, and the nascent protein is transferred to the translocon, a protein-conducting channel in the ER membrane. This allows the growing polypeptide chain to enter the ER lumen or membrane, where it can be properly folded and modified.
If the SRP is removed or its function is impaired, several consequences can occur:
Impaired targeting: Without the SRP, secretory proteins would not be efficiently targeted to the ER. They may remain in the cytosol or be misdirected to other compartments within the cell, leading to their improper localization.
Defective translocation: The absence of the SRP could disrupt the interaction between the ribosome-nascent chain complex and the translocon. This would hinder the efficient translocation of the nascent protein into the ER lumen or membrane, resulting in incomplete or failed protein import.
Misfolded proteins: The ER provides an environment conducive to proper protein folding. Without the SRP-mediated targeting and translocation, secretory proteins may not acquire their correct three-dimensional structure. Misfolded proteins can accumulate in the cytosol, leading to cellular stress and activation of the unfolded protein response.
Reduced secretion: In the absence of functional SRP, secretory proteins may fail to enter the secretory pathway and be secreted from the cell. This could result in a decreased level of secreted proteins and impair the proper functioning of the cell or organism.
Overall, the removal of the SRP would disrupt the proper trafficking and folding of secretory proteins in the ER, leading to mislocalization, misfolding, and impaired secretion.
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A B C or D Answer Helpppppppppppppp
a (i think)
have a good day
The map shows where the continents are likely to move in the next 50 million years. The shaded area represents their present position. According to the data on this map, what kind of boundary is present between the Americas and Africa? *
Answer:
Divergent
tending to be different or develop in different directions.
What does universal solvent mean
Answer:
water
Explanation:
, water is called the "universal solvent" because it dissolves more substances than any other liquid. This is important to every living thing on earth. It means that wherever water goes, either through the ground or through our bodies, it takes along valuable chemicals, minerals, and nutrients.
a burn that involves only the epidermis is called a
A burn that involves only the epidermis is called a first-degree burn. The epidermis is the outermost layer of the skin, which is composed of keratinocytes. This layer protects the body from environmental hazards such as ultraviolet light, pathogens, and moisture loss.
There are three categories of burns, including first-degree, second-degree, and third-degree burns. First-degree burns are the mildest type of burn and are considered a minor medical problem that can usually be treated at home. They affect only the epidermis, the outermost layer of skin, and typically result in reddened skin that may be tender or sore to the touch.The symptoms of first-degree burns include redness, swelling, pain, and dryness of the skin. These burns typically heal within a week, and there is usually no need for further medical treatment. If a burn becomes infected, it can be treated with antibiotics.
Aloe vera gel and over-the-counter pain relievers are commonly used to alleviate the pain associated with first-degree burns.Second-degree burns are more severe than first-degree burns and involve both the epidermis and the dermis. They result in blisters, severe pain, and sometimes a fever.
These burns usually heal within two to three weeks. Third-degree burns are the most severe type of burn and involve all layers of the skin. They can cause significant tissue damage, and immediate medical attention is required to prevent complications such as infection, shock, and organ damage.
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A scientist hypothesized that oxygen atoms from both carbon dioxide and water are used to make glucose during photosynthesis. However, experimental results using oxygen isotopes showed that all of the oxygen from the water ended up in the oxygen molecules that were produced. None of the oxygen from water was found in glucose.
What should the scientist do to best gain scientific understanding of this topic?
a. Analyze the results, and change the experimental methods to retest the hypotheses in a different way.
b. Discard the faulty results that do not support the original hypothesis, and repeat the experiment using the same methods.
c. Analyze the procedural errors that took place in the experiment, and summarize these in a conclusion statement.
d. Repeat the experiment and adjust new data to support the original hypothesis.
The scientist Discard the faulty results that do not support the original hypothesis, and repeat the experiment using the same methods; option B.
What is an experiment?An experiment is a research or test conducted in order to prove or disprove a hypothesis.
An experiment is conducted using steps or procedures based on an explanation given to an observation.
The results of the experiment by the scientist disproved his hypothesis.
Therefore, the scientist should discard the faulty results that do not support the original hypothesis, and repeat the experiment using the same methods.
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________________ plays an important role in wakefulness, digestive system, and the immune system.
Answer:wbc or white blood cells
Explanation:
Answer fast please. !!!!!!!!!!!!!!!!!!A geologist who needs to curricula to rock formations in different areas can match exposed rock layers
true or false
Answer:
A geologist who needed to correlate two rock formations in different areas could match exposed rock layers? A geologist who needed to correlate two rock formations in different areas could match exposed rock layers. TRUE.Explanation:
Answer:
true
Explanation:
The pathogenesis of pneumonia includes the inhalation of microbial agents and the resulting of which of the following? (Select all that apply.) Inflammation Lung consolidation Formation of exudates Alveolar wall thickening Decreased lung compliance
Answer:
Inflammation
Lung consolidation
Formation of exudates
Explanation:
Pneumonia could be caused by Bacteria, viruses, and fungi. The air sacs are usually affected and characterized by presence of pus in the sacs. It could be serious and life threatening and can be treated with antibiotics.
The pathogenesis of pneumonia includes the inhalation of microbial agents, Inflammation , Lung consolidation and Formation of exudates.
The function of thick mucus in the stomach is to Group of answer choices promote fat digestion. activate stomach enzymes. protect stomach cells from acid and enzymes. keep the stomach bacteria-free.
Answer:
protect stomach cells from acid and enzymes.
Explanation:
This prevents peptic ulcers.
What is a natural fertilizer is called?
Explanation:
manure is called natural fertilizer
A box of mass 3 kg is lifted 1.5 m onto a shelf. Calculate the change in its gravitational potential energy. The gravitational field strength is 10 N/kg.
What’s the joules?
Answer:
45J
Explanation:
GPE = m x g x h
m= 3 kg
g= 10 N/kg
h= 1.5m
GPE = 3 x 10 x 1.5
GPE = 45 J
What is chronological method of paragraph?.
The information is organized chronologically in "chronological order." The author describes what happened first, second, third, and last. Chronological organization is common in narrative writing, but it is not limited to it.
What is chronological paragraph example?
Chronology is any method of ordering time and placing events in the order in which they occurred.
The rehearsal dinner will be held on Friday evening. Following that, we hope that many of the guests will assist in cleaning up the area for tomorrow's wedding. Explanation: The transition "afterward" emphasizes a timeline of events in these sentences (first the dinner, then the cleaning).
Chronological, Sequential, and Consecutive Order 3 types of chronological order.
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