Answer:
During the process of cellular respiration, carbon dioxide is given off as a waste product.
This carbon dioxide can be used by photosynthesizing cells to form new carbohydrates.
Also in the process of cellular respiration, oxygen gas is required to serve as an acceptor of electrons.
During which cell division phase does the nuclear membrane disappear?
A) telophase
B) metaphase
C) anaphase
D) prophase
Answer:
B)Metaphase
Explanation:
During metaphase, the nuclear membrane disappears and the chromosomes become aligned half way between the centrioles.
Answer:
Prophase
Explanation:
D
Scientific study of the population cycles of the snowshoe hare and its predator, the lynx, has revealed that ________. Question 9 options: A) predation is the dominant factor affecting prey population cycling B) hares and lynx are so mutually dependent that each species cannot survive without the other C) the hare population is r-selected and the lynx population is K-selected D) both hare and lynx population sizes are affected mainly by abiotic factors
Answer:
A) predation is the dominant factor affecting prey population cycling
Explanation:
Predation is a type of interaction between species where one species called ‘predator’ uses another species, the ‘prey’, as a source of food. Within an ecosystem, the number of predators and prey may vary over time in cycles of time (in these cases, the population cycles of both species are closely linked). In consequence, predation is a density-dependent factor. In the case of the snowshoe hare and its predator, the lynx, when the number of predators is too high, the number of prey drastically decreases. Subsequently, this leads to the decrease of predators that leave their home range (they don’t have enough food to survive), thereby the snowshoe hare population increases again until the peak of the population cycle (carrying capacity), and so successively.
write one paragraph explaining the steps of photosynthesis
Answer:
trading a lemonade stand for an orange juice stand!!! get a taste of ur own medicine HA
Explanation:
3. Which of the following is an example of
an effort to conserve biodiversity?
a. Use of pesticides
b. Driving large vehicles
c. Protecting plant and animal
species in a national park
d. Taking a piece of coral for a
souvenir after a scuba dive
???????????????,,,??,???? What is the answer to number 4 and 5
Answer:
Questions 4-snow and 5 is rain showers
i need help please!! | No links please !
The trees in a forest were cut down to make room for a housing development. Explain how this impacts the environment.
The pressure you exert on the floor decreases when you stand on your toes because the area on which you exert force decreases.
Please select the best answer from the choices provided
T
F
The gram-negative bacterium Vibrio cholerae produces a protein, cholera toxin (Mr 90,000), that is responsible for the characteristic symptoms of cholera: extensive loss of body water and NaCl through continuous, debilitating diarrhea. If body fluids and NaCl are not replaced, severe dehydration results; untreated, the disease is often fatal. When the cholera toxin gains access to the human intestinal tract it binds tightly to specific sites in the plasma membrane of the epithelial cells lining the small intestine, causing adenylyl cyclase to undergo prolonged activation (hours or days).
a. What is the effect of cholera toxin on [cAMP] in the intestinal cells? Why?
b. Based on the information above, suggest how cAMP normally functions in intestinal epithelial cells. Briefly justify.
c. Suggest a possible treatment for cholera
Answer:
a.) It causes prolonged activation of adenylyl cyclase which leads to increased levels of Cyclic adenosine monophosphate(cAMP).
b.) In the intestinal epithelial cells, the cAMP binds to the apical chloride channels and allows it to open leading to osmotic permeability of water across the cell into the lumen of the intestine which is excreted through the faeces.
C.) Cholera can effectively be treated through the use of antibiotics and intravenous fluid replacement therapy.
Explanation:
Vibrio cholerae is a gram negative rigid curved bacillus that are actively ( vigorously) motion by a polar flagellation. The name vibrio is derived from the characteristic vibration movement of the organism when viewed under a microscope. This bacteria is capable of producing toxins called cholera toxin, which it uses as a virulent factor. It is responsible for the characteristic symptoms of cholera: extensive loss of body water and NaCl through continuous, debilitating diarrhea.
Cyclic adenosine monophosphate(cAMP) which is called a second messenger because it is not a hormone that can directly institute an intracellular change, instead, it serves as a second messenger to cause an effect.In the intestinal epithelial cells, the cAMP binds to the apical chloride channels and allows it to open leading to osmotic permeability of water across the cell into the lumen of the intestine which is excreted through the faeces.
In the effect of cholera toxin on the cAMP in the intestinal cells, Cholera toxin increases the fluid loss. The binding of the toxin to the intestinal cells causes a large increase in the level of cAMP in the cells by inhibiting the conversion of GTP bound to Ga to GDP. So adenyl cyclase is not turned off and diarrhea results.
The possible treatment is through the use of antibiotics and intravenous fluid replacement therapy. Prompt and adequate replacement of lost fluid and electrolyte through oral administration and supplemented with intravenous administration of fluids highly suggested for treatment of cholera. Antibiotics is equally used for treatment only when the cholera strain has been confirmed sensitive to it through culture.
40 Even a tiny amount of moisture can support the life of mosses, which are nonvascular
plants. Why are mosses good pioneer species?
F. They grow very slowly.
G. They can survive in wet areas.
it. They can create a layer of soil on bare rock over time.
I. They can survive in areas that receive low levels of sunlight.
What are the causes of soil compaction? (Site 1)
Answer:
Internal factors include particle-size distribution, organic matter content, mineralogy and water content of the soil. Externally applied forces are generally mechanically applied forces, the primary source of these being vehicular traffic
Explanation:
Can someone answer this as best as possible (in the picture above)
Answer:
1. 1,000
2.100
3.10
Explanation:
Every time you go up the food pyramid each level gains only 10%, so you would find ten percent of each one
A prospective groom, who is not affected by cystic fibrosis (CF), has a sister with cystic fibrosis, an autosomal recessive disease. Their parents are also not affected. The brother plans to marry a woman who has no history of CF in her family. What is the probability that they will have a child with CF? They are both Caucasian and the overall frequency of CF in the Caucasian population is 1/2500 - that is, 1 affected child per 2500 (assume the population meets the Hardy-Weinberg assumptions).
Answer: In punnett square number 1, we see the cross between AA and aa, and the result is 100% Aa individuals, so there is 0% chances of haveing a child with CF. In punnett square number 2, we see the cross between Aa and aa and there is 50% chances of having a child with CF (aa genotype).
p = 0.98
q = 0.02
p² = 0.9604
q² = 0.0004
2pq = 0.0392.
Explanation:
Due to technical difficulties, the explanation has been attached as a word document.
PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.
Answer: yo what grade is u in for these people to give you advanced word like this and also the letters are too small for me to see so I can't solve it right away.
Explanation:
Answer:
B
Explanation:
What two nations were at the center of the Space Race in the 1950's Australia and Russia .China and United States .United States and Russia .
Russia and China
Answer:The Space Race was a 20th-century competition between two Cold War adversaries, the Soviet Union (USSR) and the United States (US), to achieve superior spaceflight capability.
Explanation:
i looked it up
The two nations that were at the center of the Space Race in the 1950s should be considered Russia and China.
What is Space Race?The Space Race was the competition held in 20the century that lies between the two Cold War adversaries i.e. soviet union and the united stated for accomplishing the superior spaceflight capability.
Also, it has its origin in the ballistic missile that based on the nuclear arms race.
Learn more about the nation here: https://brainly.com/question/365702?referrer=searchResults
Most minerals are______at room temperature
liquid
gas
solid
Answer:
The answer should be solid
Whether there is a net flow of fluid into or out of a capillary at a given spot along its length depends on _____.whether or not the fluid contains carbon dioxide whether or not the fluid contains oxygen whether the fluid contains nutrients or wastesthe balance between blood pressure and osmotic pressurethe needs of the tissue
Answer: Depends on the balance between blood pressure and osmotic pressure.
Explanation:
The capillaries are part of the microcirculation that transports nutrients to the tissues and removes cell excreta. The walls of the capillaries are extremely thin, constructed of single - layer, highly permeable endothelial cells. Therefore, water, cell nutrients and cell excreta can all interchange quickly and easily between the tissues and the circulating blood.
The tissues of the body is made up of soo many capillaries which helps to deliver blood and it's contents to it. The hydrostatic pressure in the capillaries tends to force fluid and it's dissolved substances through the capillary pores into the interstitial spaces. Conversely, osmotic pressure caused by the plasma proteins( called COLLOID OSMOTIC PRESSURE) tends to cause fluid movement by osmosis from the interstitial spaces into the blood. This osmotic pressure excreted by the plasma proteins normally prevents significant loss of fluid volume from the blood into the interstitial spaces.
Therefore, a balance between hydrostatic pressure in the capillaries which is influenced by blood pressure and osmotic pressure in order for a net flow of fluid into or out of a capillary to occur.
What do you already know about the rotation and the revolution of the Earth?
Explain your Answer
Answer:
I already know that the earth rotates on its axis because of magnetic forces. I also know that the earth revolves around the sun because of the pull of the sun's gravity.
45637456425637561457324751276567 x³+y³+z³=kf im homopfobic
Sally was exposed to hepatitis. Her doctor gave her an injection containing
antibodies to help her fight off the infection before her immune system had a chance
to kick in.
action
or
MAR is
tion
72411
active immunity - naturally acquired
active immunity - artificially acquired
passive immunity - naturally acquired
passive immunity - artificially acquired
Answer:
The correct answer is - passive immunity - artificially acquired.
Explanation:
Passive immunity is the immunity that involves giving or acquiring antibodies from other sources instead of developing them on one's own. This type of immunity can be natural and artificial. Mother breastfeed the babies, is the natural passive immunity example as milk also contain antibodies required for immunity of babies.
Artificial passive immunity is the immunity that comes from injecting the antibodies created in different animals or persons which called antiserum or vaccines such as snake antivenom.
What is the answer to this question if anybody knows i’m really finding it confusing
Scientists conduct investigations to answer questions. Before making a valid conclusion, scientists must-
A- collect relevant evidence
B- tell people about the data
C- publish results from the investigation
D- discuss the investigation with other scientists
PLSSS HELPPPP
An 1815 volcanic eruption in Indonesia was followed by a three-year famine
around the world. How was the volcano linked to the famine?
A. The eruption preserved an ancient human civilization.
B. The eruption's heat and energy killed all the farmers in its path.
C. The eruption contributed to global warming.
D. The eruption's ash and gas significantly dimmed the sun.
sun
E. The eruption killed many local people.
The digestive system of most birds includes a structure called the gizzard. The
gizzard crushes and grinds food, often with the help of small stones that the bird
has swallowed.
Which of the following structures in the human digestive system has a function most
similar to that of a bird's gizzard?
F esophagus
G large intestine
H small intestine
J teeth
Answer:
the small intestine
Explanation:
the small intestine breaks down food and export it to the large into the large intestine.
the large intestine converts the food into turd aka poop.
PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.
why is one mutation not enough to result in cancer
Answer:
A single mutation is unlikely to result in cancer. Cancer is usually caused by a series of mutations that accumulate throughout the course of a person's life. As a result, cancer is more common in older adults. They've seen more chances for mutations to accumulate.
Explanation:
Identify the labeled structures
Answer:
what labeled structures?
Explanation:
The teacher noticed that Carrie seemed quite restless today and was having difficulty concentrating on any task that she started. She continuously squirmed, whether in her chair or sitting on the floor. On a number of occasions, the teacher also observed Carrie tugging at her underwear and scratching her bottom. She recalled that Carrie’s mother had mentioned something about getting her younger brother tested for pinworms and wondered if this might be what she was observing.
Required:
If Carrie does have pinworms, for what length of time should the other children be observed for similar problems?
Answer: Other children should be observed after the average of 6 weeks from the time of exposure to Carrie who is suspected to be infected by Pin worm.
Explanation:
Pin worm also called enterobiasis vermicularis is a parasitic nematode. The eggs are found in the specimen collected from the perianal skin and in the faeces of an infected individual. In its worldwide distribution, children are more commonly infected than adults. This is so because autoinfection by swallowing infective eggs is common in children. The eggs cause intense irritation and scratching of the infected area leads to the fingers becoming contaminated with eggs. This was observed by Carrie's teacher, as she usually scratch her bottom.
Other children should be observed after the average of 6 weeks from the time of exposure to infective eggs. This is because of the direct life cycle exhibited by the worm. Following ingestion of infective eggs, the larvae hatch in the intestine. Occasionally larvae hatch from the eggs on the perianal skin and migrate back into the intestine where they grow into mature worms. This type of infection is called RETROINFECTION. The larvae develop into fully mature worms in the large intestine. The female worms migrate to the rectum, pass out of the anus and lay their eggs on the perianal skin and perineum. The eggs are produced about 6 weeks after infection. They can remain viable on bedding, clothing, household objects, and in dust for several weeks.
Therefore from the life cycle of the worm, similar problem found in Carrie can be observed in other children after about six weeks of exposure to the infective eggs of the worm.
For a particular trait, the allele F is dominant over the allele f. The Punnett square below shows the genetic cross of two parents, each with the genotype Ff.
Which box in this Punnett square would contain two dominant alleles?
Hey, WHo loves horses soooooooooooooo much, That they want to pursue a career in them. Who wants to make some extra cash. I have a job for you!
Answer:
how so
Explanation:
I would like to know haga
Answer:
Oh cool! I love horses
Explanation:
Have a great day
#Equestrians
in our body, what is the process of moving eliminating waste?
Answer:
Explanation:
Excretion is the process of removing wastes from the body. Organs of the excretory system include the kidneys, large intestine, skin, and lungs