Answer:
A
Explanation:
because that is the puprose of the nucleus
Chromosomes in a cell nucleus package genetic material that specifies traits by maintaining gene integrity and controlling cell activities through gene expression.
The purpose of the chromosomes in the nucleus of a cell is to package the genetic material needed to specify traits. Chromosomes are threadlike nuclear structures consisting of DNA and proteins that serve as the repositories for genetic information. In the nucleus, these chromosomes ensure the integrity of genes is maintained and control the activities of the cell through the regulation of gene expression. Gene expression is the critical process of translating the information in a gene into a functional gene product, such as a protein or an RNA molecule, thereby determining the traits an organism possesses.
Which factors are used to characterize a biome, such as the desert, tropical rain forest, or temperate grasslands? Select all of the answers that apply.
Answer:
Temperature and precipitation
Explanation:
Biomes are characterized based on dominant vegetation types in regions with similar climatic conditions. Key factors in shaping biomes include temperature and precipitation. These conditions influence the composition of plant and animal communities, and the concept applies to both terrestrial and aquatic biomes.
Explanation:
The biome, a large-scale community of organisms, is primarily characterized based on the dominant plant types that exist in geographic regions with similar climatic conditions. The Earth showcases both terrestrial and aquatic biomes. The eight major terrestrial biomes include tropical wet forests, savannas, subtropical deserts, chaparral, temperate grasslands, temperate forests, boreal forests, and Arctic tundra.
Temperature and precipitation, and variations in both of these abiotic factors, are key in shaping the composition of animal and plant communities in these biomes. For instance, biomes like temperate grasslands and forests have distinct seasons, experiencing both cold and hot weather throughout the year. In contrast, biomes such as the desert and tundra have low primary productivity due to harsh temperatures and scarcity of water.
Different vegetation and animal life can exist in geographically distinct areas with similar climates due to these factors. Apart from terrestrial biomes, there are also the aquatic biomes which include both saltwater and freshwater ecosystems, with their structuring influenced by different abiotic factors such as sunlight, density, and temperature.
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Please help with this question it is in the attachment below
It is just science not really biology just about continental drift.
Answer:
Q:what happens when a continent moves towards the poles?
A:The climate gradually gets colder and dryer
Explanation:
The u.s celebrates earth day every year during the month of
The diagram below shows the general structure of an amino acid. Which type of molecules is for med from amino acids?
Amino acids join together to form proteins, which are crucial for nearly all biological functions. They also sometimes contribute to the formation of neurotransmitters and some hormones.
Explanation:Amino acids are essential building blocks that combine to form larger molecules known as proteins. In certain conditions, they also play a part in the creation of a few other types of molecules, such as neurotransmitters and some hormones. However, their primary role is in protein synthesis. Proteins are incredibly complex and important, serving multiple functions such as catalyzing reactions, communication, transport within cells, and structure support in tissues.
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What are pharyngeal slits ?
A.slits in the throats area
B.fish gills
C.voice box
D none of a above
Answer: B
Explanation:
Pharyngeal slits are filter-feeding organs found among deuterostomes. Pharyngeal slits are repeated openings that appear along the pharynx caudal to the mouth.
20 points). Is the following statement accurate? “Plants produce fruits primarily to provide food for animals.”
Answer:
No
Explanation:
Plants produce fruit so that
animals will eat it, digest it, and spread the plant's seeds away
from the parent plant.
Look at the drawing below. Explain whether you would expect Jack, Sam or the signpost to
change the most in the next five years.
Answer:
no diagram was made available miss
Answer:
you don't have a diagram here please endeavour to so.
What do we refer to when we separate things into groups based on their common characteristics?
Thus, by separating organisms on the basis of a hierarchy of characteristics into smaller and smaller groups, we arrive at the basic unit of classification, which is a species.
If there were no variation among organisms of a species new species would
Answer:
Overpopulate
Explanation
Because they would interact with each other positively.
It is a small zone inside a larger ridge called Mariana Trench
What's the relationship between the temperature and the density of a substance?
A) As the temperature decreases, the density decreases.
B) Temperature doesn't affect the density of a substance.
C) Temperature decreases the density of a substance only at high altitudes.
D) As the temperature increases, the density decreases.
Answer:
answer is a i think
Explanation:
Answer:
D
Explanation:
Question 5 of 10
2 Points
Which best describes the progress of science?
O
A. Scientific ideas are changed when new ideas are proven.
O
B. Once science proves an idea, it can never be changed.
O
C. People rarely think old scientific ideas are correct.
O
D. Scientific ideas are not useful once they become old.
Answer:
A
Explanation:
had a quiz on this like 2 years ago...
Who discoverd coffin-lowry syndrome and when
Answer:
Grange S. Coffin
Explanation:
He discovered it in the year 1923
Answer:
Coffin–Lowry was first described by Grange S. Coffin (b. 1923) in 1966 and independently by Robert Brian Lowry (b. 1932) in 1971. Dr. Temtamy showed that the cases represented a single syndrome in 1975.
Explanation:
Scientist who study climate changes are concerned that global warming may increase the frequency or intensity of tropical cyclones. What predicted effect of global warming would increase the destructive power of hurricans?
Global warming and hurricanes
Explanation:
Global warming and climate change lead to erratic and more destructive patterns in natural disasters like hurricanes.
Increasing global temperature has also increased the frequency of highly devastating major hurricanes. The major hurricanes which occurred once in many years or even once in a century, now occurs very frequently like once in a decade or less.
Global warming increases the sea surface temperature which in turn increases the sea level. This piling of water leads to storm surges along coastal lands.
With increasing sea surface temperature and high humidity, increases the hurricane intensity. Further, increased temperature leads to high wind at varying altitude over the sea surfaces which causes vertical wind shear that can worsen the hurricane effects.
The predicted effect of global warming would increase the destructive power of hurricanes is that warmer sea surface temperatures intensifies tropical storm wind speeds.
What is Global warming?This is defined as long-term heating of Earth's climate system sa result of the release of greenhouse gases.
This causes sea temperature to increase which brings about an increase in the intensity of tropical storm wind speeds.
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A scientist has completed several trials to see how a new drug affects adults.
Which step will best assess the validity of his experimental design and results?
Answer:it is C
Explanation:i took the quiz
Fill in the blanks to complete the paragraph.
The principle of cross-cutting relationships states that certain features, such as faults, are BLANK than the rock layers they cut through. These features are breaks in Earth’s surface where rock has moved sideways, upward, or downward. BLANK formations are made of molten rock that has cooled. Those on Earth’s surface are called BLANK . Those beneath Earth’s surface are called BLANK .
Answer:
1. Younger
2.Igneous
3.Extrusions
4.Intrusions
Explanation:
I got it right hope this helps)
Answer: younger , igneous, extrusions, intrusions
Explanation:
i took the test
In general there are how many types of air masses?
A:2
B5
Answer:
Generally there are 4 types or air masses
Explanation:
The 4 types of air masses are polar, tropical, continental and maritime.
PLEASE HELP Step 5: The blood then goes through the _______ side of the _________ to the ______________ It leaves the heart through the _________. Then the blood travels through the __________ releasing _________ to the cells for __________ and absorbs _________.The gas exchange occurring here between the oxygen and carbon dioxide molecules occurs in the _______ of the organs. The blood then goes back to the ________ side of the _________ through the veins and will go through the ________ again.
Answer:
The right atrium receives oxygen-poor blood from the body and pumps it to the right ventricle through the tricuspid valve.
The right ventricle pumps the oxygen-poor blood to the lungs through the pulmonary valve.
The left atrium receives oxygen-rich blood from the lungs and pumps it to the left ventricle through the mitral valve.
The left ventricle pumps the oxygen-rich blood through the aortic valve out to the rest of the body.
Which freshwater ecosystem is least productive?
O
A. Swamp
O
B. Stream
O
C. Bog
O
D. Marsh
Answer:
bog
Explanation: for the boyzzz bby
Bog freshwater ecosystem is least productive, because of its stability, or should we say stagnant variety, the freshwater bog ecosystem is the least productive, hence option C is correct.
What is freshwater ecosystem?Aquatic habitats on Earth are divided into freshwater ecosystems. They consist of marshes, rivers, streams, lakes, ponds, rivers, streams, and wetlands.
They can be compared to marine environments, which contain more salt than terrestrial ecosystems.
The least fruitful environment is the “bog freshwater” ecosystem. This form of ecosystem includes evergreen trees, shrubs, and shrubbery as well as a floor that is covered in a thick layer of sphagnum moss.
Therefore, bog freshwater ecosystem is the least productive.
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True or False: A lot of carbon dioxide releasing into our atmosphere is good for our environment.
Answer:
true
Explanation:
Answer:
True
Explanation:
plants need it to survive, please mark me as brainliest
14. Albinism (represented by letter Aer a) is a recessive autosomal (not sex-
linked!) genetic disorder that causes the complete or partial absence of
pigments in the skin, hair, and eyes. Fill in the Punnett square to determine the
expected offspring in a cross between homozygous recessive and heterozygous
parents.
14 a. What is the genotype of the homozygous recessive parent?
14b. What is the genotype of the heterozygous parent?
14.Sc. What is the phenotype (albino or normal) of the homozygous recessive parent?
14.d. What is the phenotype of the heterozygous parent?
14.e. What percent of their offspring will be albino?
14.f. What percent of their offspring will be normal?
Answer:
14a: aa
14b: Aa
14c: Albino
14d: normal
14e: 50%
114f: 50%
Explanation:
Which area of the brain is responsible for reasoning, judgment, planning, organization, and predicting future events?
A.Serotonin
B.thalamus
C.hippocampus
D.frontal lobe
Answer: D) Frontal Lobe
A-Attached earlobes
a-Unattached earlobes
If A is the allele for having attached earlobes, what percentage of offspring will have attached earlobes?
A. 25%
B. 50%
C. 75%
D. 100%
Answer:
50%
Explanation:
somebody come get her shes dancin like a...... oops my bad , cause i took 7.07 punnet quiz
question with the T's is
TT on top and Tt on botton
question 3 is bb on both squares and if it ask for precentage on that its 50%
Thank you!
please mark brainliest
50% of offspring will have attached earlobes as shown in the given Punnett Square. So, the correct option is B.
What is Punnett Square?Punnett square is indeed a graphical representation of the potential genotypes of an offspring that results from a certain mating event. The genetic make-up of the parents must be known in order to construct this graphical representation.
This square-shaped graphic is used to predict genotypes in breeding or cross experiments. In 1905, Reginald C. Punnett invented this method. This is used by biologists to determine the probability that a specialized gene will be passed on to progeny.
According to the Punnett Square, 50% of the offspring in the case above will have attached earlobes.
Therefore, the correct option is B.
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If a tube containing a 10% sugar solution is covered at one end by a semipermeable membrane and is
placed in a beaker containing a 5% sugar solution, what will most likely happen to the water?
A. Water will only enter the tube.
B. Water will only leave the tube,
C. There will be no water movement in the tube.
D. Less water will enter the tube than leave the tube.
Most bacteria are harmful. True or False?
Identify a minimum of three types of genetically engineered animals and describe their functions.
Answer:
Glow in the dark puppies
Cows: scientists genetically engineered cows to produce milk similar to human milk.
Salmon: genetically engineered to reach market size in eight montsh
Explanation:
Which of the following could be added to a tank of fish to integrate two biological systems?
A. Rocks for the fish to swim through
B. Fish food made from grains
C. Algae
D. Wild fish food
Answer:
C. Algae
Explanation:
I think it is algae because some fish use it for food source but don't blame me if I'm wrong if I am sorry.
The following could be added to a tank of fish to integrate two biological systems is Algae. Thus, option C is correct.
What are the producers?
Producers are organisms that produce their own food and not depends on any other organism by the process of photosynthesis such as algae. Primary organisms on the other hand directly depend on the producers for their food and often gt killed by secondary consumers.
Freshwater snails are the perfect example of the primary consumer as they get their food and energy from algae and are the primary source of food and energy for small fishes. The type of food that should be eaten in limited quantities would be fats. Too much of certain types of fat can lead to other health problems.
Therefore, The following could be added to a tank of fish to integrate two biological systems is Algae. Thus, option C is correct.
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What are three ways erosion and weathering are the same
Answer:
The primary difference between weathering and erosion is that weathering occurs in place whereas erosion involves movement to a new location. Both are caused by similar factors of wind, water, ice, temperature, and even biological action. They can also occur together.
Explanation:
Pls help with these questions thanks in advance
Answer:
19C is round
Explanation:
Possible genotypes 19 a) Rr and rr, b)Round and wrinkled, c)50%, d)50 %. 20 e) pink, f) CrCr, CwCw, and CrCw, h) 50%, i) 0 j) 50% 21 l) 50% m)50%, m)50%.
19 a) The possible genotypes of the offspring are Rr and rr
b) The possible phenotypes of the offspring are Round and wrinkled.
c) The probability of having a round offspring is 50%.
d) the probability that an offspring is homozygous is 50 %.
20 e) If the red snapdragon is crossed with the white snapdragon then the phenotype of the offspring is pink.
f) The possible genotypes of the offspring are CrCr, CwCw, and CrCw, where w represents the white color and r represents the red color.
g) the punnet square is attached below.
h) the probability that an offspring is red-colored is 50%
i) the probability that an offspring is white-colored is 0.
j) the probability that an offspring is pink-colored is 50%.
21 k) The punnet square diagram is attached below.
l) Both parents have one allele for the sickle cell trait. So there is a 50 % chance that the offspring has a sickle cell condition.
m) the probability that the offspring is normal is 50%.
n) the probability that the offspring is having sickle cell disease is 50%
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The diagram shows how a plant grew after being turned on its side.
In which area is the concentration of auxin most likely the highest?
1. W
2. X
3. Y
4. Z
Answer: Y or Z im not to sure
Explanation:Auxin moves and stores up away from light
Answer:
the answer is Z!
Exclamation:
because it is so yeah, also WOAH BREAD WITH CRUST