Bacterial generation times range from 12 minutes to more than 24 hours. In the laboratory, the generation period for E. coli is between 15 and 20 minutes, while in the digestive tract, the generation time is thought to be between 12 and 24 hours.
What is the growth rate of bacteria?Bacterial Growth Model is Validated by Proteomics Data Reasons it matters Bacteria double every 4 to 20 minutes, making them one of the fastest reproducing species in the world.
Why is bacterial growth rate important?Growth of bacterial cultures is defined as an increase in the total number of bacteria present as opposed to a change in cell size.
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Due to its location, Hawaii does not have very many land birds. The Hawaiian honeycreepers are a favorite for many ornithologists. There are over 50 species of honeycreepers that can all be traced back to one ancestor. The level of diversity in an ecosystem can be determined by the frequency of speciation and extinction.
Describe speciation and identify two possible prezygotic barriers of the Hawaiian honeycreepers that contribute to speciation.
If the Hawaiian honeycreepers became extinct, explain how the newly available niches could lead to speciation.
Answer:
In speciation, organisms evolved with the passage of time.
Explanation:
Speciation is the evolutionary process in which populations of species evolve with the passage of time to become different species from the original one. Temporal isolation and gametic isolation are two possible prezygotic barriers of the Hawaiian honeycreepers that contribute to occur speciation. The newly available niches could lead to speciation of that organisms that tolerate the Hawaiian climatic conditions when the extinction of Hawaiian honeycreepers occurs. The new organisms used the available resources such as food and space etc and increase its population.
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Which of the following is correct?
A. The main difference between plants and animals is their method of nutrition and movement.
B. An animal which hibernating is not alive because it doesn’t eat of move.
C. All organisms are multicellular
D. All living things carry out six life processes.
Answer: A
Explanation:
Because its the main difference between the 2
Answer:
its A because the main difference bettween plants and animals is the cells its not B because animals dont die when they hibernate
its not C because viruses are are single sellular organisms
so that levaes D
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Explanation:
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Answer:
B. Single replacement reaction
Explanation:
A single displacement reaction is a chemical reaction in which one element is replaced by another in a compound.
- The situation in which atmospheric gases trap the sun's heat and keep Earth's
surface warm is called
a. weather.
c. climate.
b. greenhouse effect.
d. primary succession.
Answer:
b. greenhouse effect.
Explanation:
Which of these processes is most important for a person to replace worn-out body cells?
1. Adhesion
2. Cohesion
3. Mitosis
4. Photosynthesis
Answer:
Mitosis
Explanation:
Mitosis produces new cells, and replaces cells that are old, lost or damaged for a person's body cells.
Compare the characteristics of mammals & flowering plants'
Answer:
they are both the same
Explanation:
science
The nervous system and the muscle system responds to stimuli to produce motion. The movements of
Answer:
skeletal
Explanation:
skeletal bones are involuntary
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Which property of water allows water to be resistant to sudden temperature changes?
Choose 1 answer:
A) Surface tension
B) Density
C) Adhesión
D) High specific heat capacity
Answer:
your answer will be (A) surface tension
Answer:
High Specific Heat Capacity
Explanation:
Why would you expect to find a great deal of
parenchyma tissue in the roots of plants such as the
carrot, beet, and radish?
Answer:
Parenchyma tissue makes and stores food. Because the roots of carrots, beets, and radishes store food for plant, one would expect to find large amounts of parenchyma tissue in these parts.
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Which of the following is a consequence of populations with little genetic diversity?
Ability to withstand environmental pressures
Risk of decline or extinction
Protection against spread of disease
Increased reproductive success
Answer: 1 people would be more vulnerable to disease
2 human or anything wouldnt live as long.
or if this a b c d choice it would risk of decline or extinction
Explanation:
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What situation most likely explains the occasional high frequency of certain inherited disorders among human populations established by a small population?
Bottleneck effect, increasing the gene pool of the population
Mutations resulting in neutral changes to genotype
Gene flow and migration of populations of diverse individuals
Founder effect, due to a limited number of individuals from a parent population
Answer: Founder effect, due to a limited number of individuals from a parent population brainliest?
Explanation:
Answer:
The founder effect is genetic drift attributable to colonization by a limited number of individuals from a parent population.
What types of technology are now available that would help reduce the negative impacts of sandstorms
Answer: Sandstorm is a storm which occurs when the wind currents are fast and they take away the sand from desert and other arid areas which impact the neighboring residential area.
Explanation:
The following are the technological measures that can be taken to reduce the effects of sandstorms:
1. Meteorological department must take initiative to aware people before sandstorm.
2. All buildings must have sandstorm alert alarms which are sensitive to sand so that people get aware about sandstorms.
3. Window pane must be regulated automatically to detect high speed wind currents to protect the lives inside the house.
In a cow that is heterozygous for long hair (LI), what is the probability that its egg cell will contain the dominant allele L?
0%
75%
50%
100%
ОО
25%
Answer:
50 50 you have a large letter an a lil one that means one's dominant an the other isn't
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Explanation:
Species
Genus
Family
Order
Class
Phylum
Kingdom
Domain
why are there black holes on the moon
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Which level(s) of organization would NOT have biodiversity? Choose all that apply.
organism
population
community
ecosystem
Answer:
organism and population
Will give brainliest
Answer:
D
Explanation:
70 plus 30 = 100%
Ruiz Instructions Question 6 1 pts The type of photoceptor in the eye that responds to color is the
O pupil
rod cells
O retina
cone cells
Answer:
its retina respond to colour and form inverted image behind
What might happen to plants if they were unable to develop parts of the stem underground?
Answer:
The water travelling from the roots to the leaves will slow and eventually stop… ... If there are no buds, the plant my become deceased unless there is bulb or root mechanism that will resprout vegetative growth from below the ground to start a new plant…
Explanation:
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Can someone help me
Answer:
1...c
2... indicator
3... corrosive
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Which star could die in a supernova?
Sirius B
Deneb
Procyon
Answer:
Deneb
Explanation:
What stage ensures that each cell receives an identical set of DNA during mitosis?
Is this an accurate description of the water cycle?
The water cycle is water in the sea or ocean that gets evaporated, that’s condensation. It turns into clouds but then just falls again as rain/snow, that’s precipitation. It goes to streams and runoffs. That is the water cycle.
Answer:
Yes,I think this is correct
Answer:
right, maybe that's the right answer
Explanation:
sorry if my answer is wrong
what is a transgenic organism?
a. an organism that is an exact clone
b. an organism that has a mixture of DNA
c. an organism that has no DNA
d. an organism with DNA from another organism
Compare the two Food Web. Which ecosystem would be more likely to survive if a disease killed the grass?
a The forest ecosystem, because the animals would be able to eat other organisms.
b The grassland ecosystem, because it has many herbivores.
c he grass ecosystem, because several predators compete for food
d The forest ecosystem, because it has 3 top predators
Answer:
A
Explanation:
just A, I remember doing this in like 4th or 3rd grade don't really remember but I makes sense
how does the thyroid gland help maintain and regulate calcium?
Answer:
When the calcium level is high in the bloodstream, the thyroid gland releases calcitonin. Calcitonin slows down the activity of the osteoclasts found in bone. This decreases blood calcium levels. When calcium levels decrease, this stimulates the parathyroid gland to release parathyroid hormone.
Which of the following is the best summary for the function of the kidney?
A.
The kidney processes blood, sending nutrients to the bladder to be removed.
B.
The kidney filters the blood, keeping nutrients and getting rid of wastes.
C.
The kidney stores the blood so that it can use the nutrients.
D.
The kidney receives the used blood of the body and sends it all to the bladder.
Answer:
B.
Explanation:
2. Full-sized wings are the typical phenotype for Drosophila. Which of the following events most likely led to the
existence of the short-wing allele in Drosophila?
A. a change in the shape of a chromosome
B. a change in the DNA sequence of a gene
C. the insertion of a DNA strand during mitosis
D. the deletion of a chromosome during meiosis
Answer:
B. A change in the DNA sequence of a gene
Explanation:
When it is summer in the U.S, why is it winter in South America?
Answer:
the suns on the other side of the earth at the time
Explanation:
hope it helps :)
Answer:
The Earth is tilted at an angle of about 23 degrees, which means that depending on where Earth is on its orbit, one pole will be getting more hours of light (summer) and one will be dark (winter).
Explanation:
Also, the earth is tilted on it's axis so more direct rays of sunlight hit the southern hemisphere making it summer in that hemisphere while it is winter in the northern hemisphere. Six months later, this reverses, and more direct rays hit the northern hemisphere. That's why it's summer here while it's winter there.
The earth's distance from the sun has nothing to do with it. It's all about the axial tilt.
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What type of organism really spread and diversified during the Cenozoic?
reptiles
fish
amphibians
mammals
Mammals really spread and diversified during the Cenozoic era. So, the correct option is D.
What was Cenozoic era?The Cenozoic Era is defined as the third of the major eras in Earth's history that began about 66 million years ago and extends to the present. This epoch was the interval of time during which the continents assumed their modern configurations and geographic positions during which the Earth's flora and fauna evolved towards the present.
The Cenozoic Era is called the "Age of the Mammals", while the typical landscapes of North America began to develop during the Cenozoic. Birds and mammals rose to prominence after the extinction of giant reptiles.
Thus, Mammals really spread and diversified during the Cenozoic era. So, the correct option is D.
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