Populations that experience a logistic growth model depend on the density and available resources. A) 5 - 10 days. B) 25 - 30 days. C) 0.27 x 10⁶cells/mL/day
What is the logistic growth model?In a logistic growth model, the population growth depends on density. Natality and mortality depend on the population size, meaning that there is no independence between population growth and population density.
When a population grows in a limited space, density rises gradually and eventually affects the multiplication rate. The population per capita growth rate decreases as population size increases.
The population reaches a maximum point delimited by available resources, such as food or space. This point is known as the carrying capacity, K.
K is a constant that equals population size at the equilibrium point, in which the natality and the mortality rate get qual to each other.
Assuming that the population size is N, when
N<K, the population can still grow. N approximates to K, the population's growth speed decreases. N=K the population reaches equilibrium, N>K, the population must decrease in size because there are not enough resources to maintain that size.The sigmoid curve represents the logistic growth model.
In the example,
Between 0 and 5 days the population remains relatively stableBetween 5 and 10 days Chlorella approximates exponential growth.Between 10 and 20 days Chlorella experiences exponential growth. Between 20 and 25 days the population is near the K and decreases its growth rate.From 25 to 30 days, the population reached the equilibrium point, and got to stabilize.Time period during which Chlorella,
A) approximates exponential growth ⇒ Between 5 and 10 days
Between 10 and 20 days its already exponential growth.
B) has reached the carrying capacity of the culture ⇒ 25 to 30 days
Finally,
C) Growth rate per day for the 5-day period with the greatest growth rate.
First we need to figure out during which period Chlorella experiences the greatest growth rate. To do it, we just need to make the following substraction,
Growth rate per period = final concentration - initial concentration
Period 0-5 ⇒ 0.08 - 0.01 = 0.07Period 5-10 ⇒ 0.55 - 0.08 = 0.47Period 10-15 ⇒ 1.9 - 0.55 = 1.35Period 15-20 ⇒ 2.8 - 1.9 = 0.9Period 20-25 ⇒ 3.2 - 2.8 = 0.4Period 25-30 ⇒ 3.2 - 3.2 = 0Now we know that during the period from 10 to 15 days, the population experienced its greatest growth rate. But this rate is acchieved in 5 days. Now we need to find out the growth rate per day. So all we need to do, is to divide the result of the substraction per 5 days,
1.35 x 10⁶ / 5 days = 0.27 x 10⁶ cells/mL/day
The answer is 0.27 x 10⁶ cells/mL/day
You can learn more about logistic growth model at
https://brainly.com/question/16354435
https://brainly.com/question/15631218
A land based global community of organisms is called a?
Help me out pleaseeeeeeees
How are gravity and friction similar?
Answer:
gravity and friction is similar cause one of the main things they have in common is when you have friction that's gravity pulling you or they thing down.
Explanation:
to be honest I just thought of this of the top of my head so I hope it helped in some ways.
Gene expression in all organisms depends on protein synthesis. What is the last stage of protein synthesis, in which amino acids are assembled by tRNA?
Answer:
Gene expression in all organisms depends on protein synthesis. What is the last stage in protein synthesis, in which amino acids are assembled by tRNA? translation. The steps in proteins synthesis are identical in all six organisms.
How do changes to genes affect the traits of an organism
Changes to genes affect the traits of an organism, as genes have the capability to regulate the organism's function, and the genes can regulate the expression of proteins, which regulate the organism's phenotypic and genotypic expression.
What is the significance of the genes or the traits?Changes in the genes can affect humans in several ways, such as through genetic mutations that result in changes to the regulation of gene expression and result in the addition or loss of entire genes from the organism. Not all of the genetic mutations lead to expressiable changes, but they may change the protein sequence by changing the polypeptide sequence.
Hence, changes to genes affect the traits of an organism, as genes have the capability to regulate the organism's function, and the genes can regulate the expression of proteins, which regulate the organism's phenotypic and genotypic expression.
Learn more about the genes or traits here.
https://brainly.com/question/11890207
#SPJ2
Which is not a property of an acid?
A)
tastes sour
(B) has a high pH
(C)reacts with metals
D contains the element hydrogen
3. When you are fasting for this month, what does your body do at night after you've eaten?
Answer:yo dada
Explanation:yo mama
Which of these types of muscles are striated? Check all of the boxes that apply.
1) skeletal muscles
2) cardiac muscles
3) smooth muscles
Answer:
Muscle Types: Cardiac and skeletal muscle are both striated in appearance, while smooth muscle is not. Both cardiac and smooth muscle are involuntary while skeletal muscle is voluntary.
Answer: skeletal muscles & cardiac muscles
Explanation: Skeletal and cardiac muscles are striated. Smooth muscles are not.
Name two types of a sexual
reproduction which occur in animals
giving one example in each case
Answer:
Meiosis and Fertilization
sexual and asexual reproduction
You are studying a biochemical pathway in the mold Neurospora where enzyme 1 converts the initial substrate into intermediate substrate A; enzyme 2 converts intermediate substrate A into intermediate substrate B; enzyme 3 converts intermediate substrate B into intermediate substrate C; and enzyme 4 converts intermediate substrate C into the end product, an amino acid that is essential for growth. You isolate a mutant that is unable to grow on minimal media. Which data would provide the strongest support for the hypothesis that this mutation occurred in the gene that codes for enzyme 2
Complete question:
You are studying a biochemical pathway in the mold Neurospora where enzyme 1 converts the initial substrate into intermediate substrate A; enzyme 2 converts intermediate substrate A into intermediate substrate B; enzyme 3 converts intermediate substrate B into intermediate substrate C; and enzyme 4 converts intermediate substrate C into the end product, an amino acid that is essential for growth. You isolate a mutant that is unable to grow on minimal media. Which data would provide the strongest support for the hypothesis that this mutation occurred in the gene that codes for enzyme 2?
a. The mold can grow on rich medium plus intermediate substrate C, but not on rich medium plus intermediate substrate B.
b. The mold can grow on minimal medium plus intermediate substrate B, but not on minimal medium plus the initial substrate.
c. The mold can grow on minimal medium plus intermediate substrate B, but not on minimal medium plus intermediate substrate A.
d. The mold can grow on rich medium plus intermediate substrate D, but not on rich medium plus intermediate substrate C.
e. The mold can grow on minimal medium plus intermediate substrate A, but not on minimal medium plus intermediate substrate C.
Answer:
c. The mold can grow on minimal medium plus intermediate substrate B, but not on minimal medium plus intermediate substrate A.
Explanation:
Let us first diagram the pathway for a better understanding.
The normal organism produces four enzymes that convert substrates in the medium that allow it to survive, grow, and reproduce.
initial substrate ------------> A ----------------> B ----------------> C ----------------> AA
Enzyme 1 Enzyme 2 Enzyme 3 Enzyme 4
Any mutation on the Neurospora´s enzymes will not let the organism grow on the minimal medium because it will not be able to convert the minimal substrate into the following one, because the mutated enzyme will not accomplish its original function.
So if the mutation occurs in enzyme 1, the organism will not be able to convert the initial substrate into intermediate substrate A. And the rest of the reaction will not be possible either because of the lack of substance A.initial substrate -----X----> A -------X-----> B ------X--------> C ------X-------> AA
mutated Enzyme 1 Enzyme 2 Enzyme 3 Enzyme 4
If the mutation occurs in enzyme 2, the organism will not be able to convert the intermediate substrate A into intermediate substrate B. And the rest of the reaction will not be possible either because of the lack of substance B.
initial substrate ------------> A -------X--------> B -------X------> C --------X-----> AA
Enzyme 1 mutated Enz. 2 Enzyme 3 Enzyme 4
If the mutation occurs in enzyme 3, the organism will not be able to convert the intermediate substrate B into intermediate substrate C. And the last reaction will not be possible either because of the lack of substance C.
initial substrate ------------> A ----------------> B -------X--------> C -------X------> AA
Enzyme 1 Enzyme 2 mutated Enz. 3 Enzyme 4
And if the mutation occurs in enzyme 4, the organism will not be able to convert the intermediate substrate C into the essential amino acid.
initial substrate ------------> A ----------------> B ----------------> C -------X-------> AA
Enzyme 1 Enzyme 2 Enzyme 3 Mutated Enz. 4
But, if we artificially add to the medium the substrate that should be produced by the original enzyme (and that is not converted because of the mutation), then the organism will grow and survive because the other enzymes will be able to produce the essential amino acid.
So, if enzyme 2 is the only enzyme mutated, the organism will not be able to live in a medium with substrate A because the mutated enzyme will not convert the substrate A into B. There will not be B substrate in the medium, and the other enzymes will not produce the essential amino acid. So if the mutation occurs in enzyme 2, substrate A is useless to the organism because it will not survive.
But if we add the intermediate substrate B to the medium, the organism will survive. In a medium with substrate B, all the other reactions will be possible, and the organism will get the essential amino acid. The artificial addition of B substrate will replace the function of the original enzyme 2 -which is the one that converts A into B-.
Explain your reasoning I will give u Brainliest
Answer:
1. A
2. B
Explanation: #2 is B because sedimentary rocks have layers that you see in places such as canyons. Sedimentary rocks are made from grains so you can see that kind of texture in the image. Igneous rocks are made from the cooling and solidification of lava. They have that shiny texture.
Hope this helps! :)
Answer:
1. A
2. B
Explanation:
1. Igneous rocks are formed from by lava, Igneous rocks are various crystalline or glassy rocks formed by the cooling and solidification of molten earth material
2. Sedimentary rocks are formed from pre-existing rocks or pieces of once living organisms. They form from deposits that accumulate on the Earth's surface
pls help I will give brainiest!!
what environmental problem does sulphur dioxide cause?
Answer:
When sulfur dioxide combines with water and air, it forms sulfuric acid, which is the main component of acid rain. Acid rain can: cause deforestation. acidify waterways to the detriment of aquatic life
Explanation:
Answer:
deforestation
Explanation:
When sulfur dioxide combines with water and air, it forms sulfuric acid, which is the main component of acid rain. Acid rain can: cause deforestation. acidify waterways to the detriment of aquatic life.
In corgis, a breed of dog, short tails are completely dominant to long tails. If two long-tailed corgis have puppies, what is the percent chance of having a puppy with a short tail?
Answer:
0%
Explanation:
This question involves a single gene coding for tail length in a breed of dog called Corgis. The allele for short tail (S) is dominant over the allele for long tail (s).
According to this question, two long-tailed corgis are crossed i.e. ss × ss. Each parent corgis will produce only 's' gametes. Using this gametes in a punnet square (see attached image), the following proportion of puppies will be produced:
All ss (long-tailed) offsprings/puppies.
Based on the question asked, 0% or none of the puppies produced will have a short tail.
Can humans turn into fossils why or why not?
Answer:
Certain types of animals are more likely to end up as fossils. ... On the other hand, it turns out humans are actually fairly well-suited to becoming fossils. “Mammals have a very good record, because teeth make fantastic fossils,” says Norell. “They're incredibly hard, incredibly resilient.
Explanation:
Answer:
well probably we humans are almost, practically fit for fossils so we have a chance to turn into a fossil
Explanation:
Why might you always need to have some glucose in the blood?
Answer:
Blood glucose is a sugar that the bloodstream carries to all cells in the body to supply energy. A person needs to keep blood sugar levels within a safe range to reduce the risk of diabetes and heart disease.
Hope this helps :)
Answer:
you need a lot of starch
Explanation:
for your glucode
Many closely related species of ducks have different courtship dances that are performed to solidify a pair-bond. If you were to cross individuals from each of these species what would you expect to see in the hybrid offspring if behaviors related to pair-bond formation were completely due to genetics?
Answer:
I would expect to see a new phenotype in which the new duck hybrid species would express a new mixed courtship dance with the behaviors of both parentals.
Explanation:
The cross between both parentals, each from different species, might produce a new phenotype that exhibits both parental dances. The new dance might be considered a hybrid of the parental dances.
Genetically speaking, we can think that there is a gene codifying for the courtship behavior in one species and another gene expressing a different courtship behavior in the other species. This cross´ product would be a hybrid species that exhibits a part of both parentals´ behaviors.
please help I'm stuck on this
Answer:
Hmm I don't know really I saw a video about this but I don't remember it
Answer each with a T for true of a F for false
Match the vocabulary word to the correct definition.
Column A
1.
This can release and store energy by breaking and re-forming the bonds between its phosphate groups:
This can release and store energy by breaking and re-forming the bonds between its phosphate groups
2.
The fluid portion of the chloroplast outside of the thylakoids is known as this:
The fluid portion of the chloroplast outside of the thylakoids is known as this
3.
The thylakoid contains this protein complex that spans the membrane and allows H+ ions to pass through it:
The thylakoid contains this protein complex that spans the membrane and allows H+ ions to pass through it
4.
this compound has two phosphate groups, adenine, and a 5 carbon sugar called ribose:
this compound has two phosphate groups, adenine, and a 5 carbon sugar called ribose
Column B
a. ATP synthase
b. ADP
c. stroma
d. ATP
Answer:
1
Explanation:
help please 30 points will give brainliest
Plants release the waste ___________ during cellular respiration and ____________ during photosynthesis.
fill in the blanks
Plants release the waste carbon dioxide during cellular respiration and oxygen during photosynthesis.
Look at the speedometer at the top. What do you notice about the speed when the skater goes from a height of 6m down to 0m and back up to 6m?
Answer:
First increases then decreases.
Explanation:
The speed of skater tends to increases when it moves from high elevation of 6 m to the low height area due to sloppy region while on the other hand, when the skater moves again from 0 m or from the ground level to 6 m height its speed decreases when reaches to the highest point. First the speed of the skater increases due to moving in the direction of gravity while on other hand, the speed of the skater decreases due to movement of skater against the gravity of earth.
How can you use what you have learned in Biology to help yourself, family and the planet?
Answer: I’m not sure what you’ve learned but for me it’s that you shouldnt leave the lights on when you don’t need them, you should switch off the TV when you aren’t using it, if you see a piece of trash pick it up and throw it in a trash can, and recycle
Explanation: HAPPY (late) EARTH DAY!!
Can someone help me with this one question please
How is UV light sensitive yeast related to the cell cycle/mitosis? please help!!!?
Answer:
TU PUEDES ;>
Explanation:
WILL GIVE YOU BRAINLYEST!!
An increase in the variety of species in an ecosystem will help restore
stability to the ecosystem after a hurricane. True or False *
Answer:
True
Explanation:
There will be diversity of species and this in turn leads to stability of the ecosystem.
Explanation:
It is true know you have to give brilient
How might predict whether one of the siblings will have children that show the trait of albinism?
Answer: — Girls with albinism usually have OCA not OA and should be tested for the OCA genes. Boys can have OA or OCA. Sometimes doctors cannot tell if a child's hair and skin is affected by albinism just by looking at a child. Genetic testing may be able to tell which type of albinism your child has.
Explanation:
Albinism is usually passed either from one unaffected parent (OA) to a child or from both unaffected parents (OCA) to a child. A parent who is not affected with albinism but has the gene mutation that causes it is called a "carrier".
UNA FUENTE DE ALIMENTOS QUE SOLO LAS ARDILLAS SON IMPACTADAS TANTO EN EL ECOSISTEMA ??
A FOOD SOURCE THAT ONLY THD SQUIRRELS ARD IMPACTED THE ECOSYSTEM SO MUCH??
During anaphase the chromosomes line up ?
True or false
Clams that are native to China are living in the San Francisco bay. How can these clams damage the bay ecosystem?
Answer:
Marine Invasive Species are animals or algae that have been translocated from their native region to California marine and estuarine waters. Invasive species are also called introduced, exotic, alien, nonindigenous or non-native.The introduction of NIS can cause harm to the ecosystem by displacing native species, becoming a human health dangerby introducing new diseases, or cause economic havoc on commercial, agricultural, or recreational activities by clogging waterways, and impacting navigation and recreation.
A prime example of the harm an invasive species can cause is Caulerpa taxifolia, also known as Killer Algae, a strain of green seaweed believed to be released from an aquarium directly into a water body or through a storm drain. The Killer Algae forms a dense carpet on any surface including rock, sand, and mud displacing native plants and animals, disrupts the natural food chain, and seriously impacting recreational and commercial fisheries.
Although Caulerpa was successfully eradicated from California marine waters, few eradications have been attempted due to perceived challenges and high cost (over $7M was expended in the case of Caulerpa).
Number of Invasive Species Statewide
The map below shows that all major harbor areas and Bays in California have received significant NIS introductions. San Francisco Bay has the highest number of non-native species, followed by the Ports of Los Angeles/Long Beach. San Francisco Bay is a hotspot for invasions because it has high recreational boating and commercial shipping traffic, a history of oyster culture, and is adjacent to a highly urbanized area. Our research found that San Francisco Bay is a hub for the spread of NIS to the rest of the West Coast.
Explanation:
pls help me I'll give 15
Answer:
i dont care
Explanation:
i dont know