Answer:
Transcription factors
Explanation:
This is because Eukaryotic gene expression is regulated by transcription factors and RNA processing, which occur in the nucleus, and during protein translation, in the cytoplasm.
Transcription in eukaryotic cells is controlled by proteins . These proteins then bind to some specific regulatory sequences and try to control the activity of RNA polymerase. The Gene expression is regulate by transcriptional regulatory proteins . Also ,the packaging of DNA into chromatin and methylatiin indicate levels of complexity to the control of eukaryotic gene expression.
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.
Learn more about Cenozoic era, here:
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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.
Can someone help me
Answer:
1...c
2... indicator
3... corrosive
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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:
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.
what is the difference between an organism and a population in an ecosystem?
Answer:
Explanation:
An organism refers to a single individual living in an ecosystem and population refers to a group of organisms living together in the same area.
Answer: A population in an ecosystem is the amount of species living in that ecosystem, while an organism is a single living entity.
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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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Answer:
i thick is a garlic and ramps
Explanation:
Ramps are the name of the American wild garlic (Allium tricoccum) and can be used in the same way as our native wild garlic
Answer:
a. garlic and ramps
Explanation:
they have the genus name:allium
Compare the characteristics of mammals & flowering plants'
Answer:
they are both the same
Explanation:
science
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Organisms are classified into kingdoms primarily on the basis of
A)behavior
B)structure
C)size
D)habitat
Answer:
B Structure :)
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 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.
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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
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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.
why are there black holes on the moon
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:
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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:
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
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:
How do you call the center point on the surface of an earthquake?
Answer:
Hypocenter or epicenter
(two different things)
Explanation:
The hypocenter is the point within the earth where an earthquake rupture starts.
The epicenter is the point directly above the hypocenter and is on the surface of the Earth.
Please help will give brainliest
Explanation:
Species
Genus
Family
Order
Class
Phylum
Kingdom
Domain
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
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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Which star could die in a supernova?
Sirius B
Deneb
Procyon
Answer:
Deneb
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.
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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:
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
What stage ensures that each cell receives an identical set of DNA during mitosis?
What ways can you get immune to viruses?
Answer:
n a nutshell, eating healthily, unprocessed foods, staying active and getting enough sleep are the simplest way to ensure your immune system is healthy enough to fight off germs.
Explanation: