Answer:
One of the most common chromosomal disorders is Down syndrome. Down syndrome happens when abnormal cell division results in extra genetic material from chromosome 21, too few chromosomes, or part of a chromosome may be missing. The difficulties of Down syndrome include hearing and vision weakness, weak auditory memory, fine motor skill impairment, short attention span with distractibility. Having Down syndrome can increase the risk of developing Alzheimer's disease. Having down syndrome can be associated with other health conditions such as ear infections, dental problems, endocrine problems, and seizures.
If you were on Earth at 60° N and looked directly up around noon, what would you see?
Answer:
You would experience 24 hours of it being night or darkness
Explanation:
it is more than 90 degrees away from the suns vertical ray
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How might the Earth's surface change because a volcano erupts?
how do scientist test thier hypothesis
Answer:
By experimenting on the hypothesis using step by step scientific methods.
Gathering the data, analyzing the data, drawing conclusions and if the hypothesis isn't conclusive a new hypothesis will be formulated to check out the problem.
how is the information contained in a signaling molecule received by a cell?
Answer: Depending on the nature of the signaling molecule, it may either bind to and activate a receptor protein embedded in the plasma membrane, or it may move across the plasma membrane and bind to a receptor protein in the cytoplasm.
Explanation: I found this answer on quizlet
Answer:
How is the information contained in a signaling molecule received by a cell? Depending on the nature of the signaling molecule, it may either bind to and activate a receptor protein embedded in the plasma membrane, or it may move across the plasma membrane and bind to a receptor protein in the cytoplasm
Explanation:
which solution is hypertonic?
Answer:
the beaker
Explanation:
the beaker (0.5 m salt) has more solvent than the red blood cell (0.1 m salt). Therefore, it means that the red blood cell is hypotonic (more water/solute), and the beaker is hypertonic (more solvent/salt).
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Explain why the shape of an enzyme is important to its function.
Answer:
The shape of an enzyme is very important because it has a direct effect on how it catalyzes a reaction.
Each enzyme is folded into a shape that allows the substrate(s) to fit into the active site, which is where the reaction occours. Other substrates do not fit into this active site. This is why each enzyme can only catalyse a specific reaction
Answer:
hey
how is the weather that side
Which is NOT considered an organism?
fungi
virus
bacteria
German Sheppard
Answer:
Virus.
Explanation:
Living things are organisms
Fungi is a plant which is a living thing
bacteria is an organism
and a German Shepherd is a animal which is a living thing
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promoters of many genes have regions that are rich in adenines and thymines. what is the most likely reason for this?
Answer:
Many promoters of a hypothetical conserved gene have mostly adenines and thymines. What is the most likely reason for this high proportion of adenines and thymines? This is the region for separating template and non-template strands, and A-T base pairs are easier to separate than G-C base pairs.
Explanation:
What is the biggest bird in the world?
Answer:
the biggest bird in the world is the Common ostrich
Explanation:
Brainliest ?
Cholera bacteria causes sever diarrhoea. These bacteria spread rapidly when sewage is not piped away. Why is this?
Answer:
Because cholera bacteria rapidly multiplies in areas with improper sanitation and untreated water that people can drink.
When people drink this water, they get severe diarrhoea.
How many chromosomes does a normal passeriformes have?
Answer:
In general, bird karyotypes have a high diploid number (2n) of typically around 80 chromosomes that are divided into macro- and microchromosomes
which body system is responsible for producing the hormone adrenaline?
Answer:
In the centre (medulla)
Explanation:
Of the adrenal glands and in some neurons of the central nervous system.
what is carbon used for in each sphere?
Answer:
Carbon is found in the hydrosphere dissolved in ocean water and lakes. Carbon is used by many organisms to produce shells.
Explanation:
why is the study of coral reefs in Palau is important for other coral ecosystem
Answer:
The study of coral reefs is important for providing a clear, scientifically testable record of climatic events over the past million years or so. This includes records of recent major storms and human impacts that are recorded by the changes in coral growth patterns. The Nature Conservancy and the Palau Government have joined forces to design and implement a protected areas network for Palau’s coral reef ecosystem. They recognized bleaching as being potentially one of the
Explanation:
What was the Court’s decision in United States v. Nixon (1974) and how did the decision uphold the idea that even the President of the United States is not above the nation’s laws?
Answer:
The Supreme Court decided that the President was required to turn over tape recordings and other materials that had been subpoenaed by special prosecutor Leon Jaworski.
In trying to withhold some materials related to the Watergate investigation, Nixon's lawyer had argued that the President of the United States "is not subject to the processes of any court in the land except the court of impeachment." The Supreme Court disagreed, in unanimous fashion. They held that the President could not use executive privilege as an excuse for hiding wrongdoing or avoiding prosecution. In an interview some years after his resignation, Nixon still held to his view, claiming that when the President does something, "that means that it is not illegal." He felt that being in the position of President put him above the law. But the Supreme Court had firmly disagreed. They rejected the idea of "absolute, unqualified Presidential privilege of immunity from judicial process under all circumstances." Executive privilege can only protect matters of military or diplomatic confidentiality
Write 2-3 complete sentences to describe the government in United States
Answer:
The United States government is a constitutional, federal republic composed of three branches: legislative, executive, and judicial. Each branch has its limitations of powers and responsibilities to ensure that citizens have their rights protected and that the government is successfully working.
Explanation:
when reading a book, the ciliary muscle will __________, the suspensory ligament will __________, and the lens will become more __________.
Why are flood plain soils particularly fertile
Answer:
Due to the deposition of silt.
Explanation:
The Floodplain is a generally flat area of land next to a river or stream. When the river floods, water containing sediments and particles from the upper course and middle course of the river gets washed onto the Floodplain. The nutrients front these sediments and the water is absorbed into the soil for it's enrichment and fertilisation.
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What is Photosynthesis?
Answer:
the process where plants use sunlight to synthesize foods from carbon dioxide and water to get their energy.
What phases are A, B, C D, and E? I’ll mark brainliest if you’re right!
Answer:
A: Anaphase
B: Anaphase II
C: Prophase I
D: Metaphase I
E: Metaphase II
Explanation:
How can detritivores be beneficial to the environment?
O A) allow predation to occur
O B) rid waste and dead matter
O C) provide food for autotrophs
O D) facilitate photosynthesis in plants
Answer:
B
Explanation:
How can detritivores be beneficial to the environment?
O A) allow predation to occur
O B) rid waste and dead matter
O C) provide food for autotrophs
O D) facilitate photosynthesis in plants
ANSWER:O A) allow predation to occur
O A) allow predation to occurO B) rid waste and dead matter
O C) provide food for autotrophs.
O D) facilitate photosynthesis in plants
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human construction of buildings and pavement affect the hydrological cycle by
Create a hypothesis: Ben wonders if sugar water will help his vine plant grow taller than it would with regular water. He would like to do an experiment. Create an appropriate hypothesis Ben can test using an experiment. *your hypothesis can be anything as long as it is in the correct format and related to the experiment!
Answer:
Sometimes I wish I was a little baby again, because bruised knees heal faster than broken hearts
hybrid zones provide an opportunity to investigate _____.
Answer:
Hybrid zones are geographical areas where two interbreeding groups of genetically unique organisms meet. Hybrid zones provide an opportunity to investigate Reproductive isolation and Speciation.
Explanation:
Help fast pls
Which statement describes the process of osmosis in an animal cell?
A)
Sugar molecules move across the plasma membrane until the cell has
enough energy to
grow in size and dividel
B)
Water molecules move across the plasma membrane until solute
concentrations are equal
on both sides of the membrane.
C)
Tons move across the plasma membrane until the inside of the cell has a
higher
concentration of positive charges.
D
Enzymes move across the plasma membrane until the cell has completed
metabolism
Answer:
hi b is the correct one<3 have a good day
Explanation:
Water molecules moving across the plasma membrane until solute concentrations are equal on both sides of the membrane best describes the process of osmosis in an animal cell .
Osmosis is the process in which molecules move from a region of higher concentration to that of a lower concentration across a semi-permeable membrane.
Osmosis provides a balance between the elements in which organisms are exposed to. A very high concentration may cause cells to shrink and die hence the reason to maintain a balance for optimal functions and survival.
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The Allegheny mountain region of Virginia was formed between 250 and 280 million years ago. What event most
Likely caused the formation of the Allegheny Mountains?
-))
A)
The collision of two continental plates causing uplift
B)
The deposition of sedimentary rock over the Allegheny region
C)
Continental drift separating two plates to move apart slowly
D)
Geologic uplift of magma forming igneous rock that converted to
mountainous regions
Answer:
A the collision of two continental plates causing uplift or D the uplift of magma forming igneous rock that converted to mountainous regions
Explanation:
Answer:
A
Explanation:
The collision of two continetial plates causing uplift.
Help!!!!!!!!!
Difference between sperm and zygote
zygote is the diploid cell that results from the fertilization between an egg and sperm
sperm is the male reproductive cell that is responsible for a baby to born
ZYGOTE IS DIPLOID CELL FORM WHEN TWO GAMETE CELLS ARE JOINED BY MEANS OF SEXUAL REPRODUCTION
SPERM IS THE MALE REPRODUCTIVE CELL,OR GAMETE IN ANISOGAMOUS FORMS OF SEXUAL REPRODUCTION.
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Which statement best summarizes the function of DNA?
-An RNA sequence hooks up with a particular DNA sequence.
-DNA consists of genes that give instructions for making proteins.
-O A single DNA molecule splits into two DNA molecules .
-Covalent bonds join smaller molecules into proteins.
Answer:
-DNA consists of genes that give instructions for making proteins.
how can different amino acids affect secondary structure
Answer:
Exposure to positively charged amino acids (arginine and lysine) is found to clearly stabilize the secondary structure. Kinetically, each amino acid promotes folding by generating a large increase in the folding rate with little change in the unfolding rate.
6. Identify the type of climate data that has the longest data range. 1. microscopic organism 2. data sediment core 3. data tree ring 4. data ice core data
Complementing data, taken from different sources such as tree rings, sediments, and ice, provides significant information about global climatic changes. However, ice core data has the longest data range. (4) is correct.
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Ice core data refers to the information obtained from a sample of ice taken from a glacier or a mountain.
Information kept in the ice is mostly about gases concentration at different moments though time.
Analysis of retained gases in Antarctic ice, through perforations of over 2000 meters deep, has allowed knowing the CO₂ atmospheric concentrations and other gases involved in the greenhouse effect for at least 150,000 years.
These concentrations have varied in the temporal scale of glaciation, showing low concentrations during glacial periods with low temperature and relatively high concentrations during interglacial periods with high temperature.
Between these two periods, abrupt variations in temperature and gas concentration are detected, meaning that changes in CO₂ cause changes in temperature.
The increase in CO₂ is a highly significant component in global climatic change and possibly the best documented.
This information is the best paleoclimatic documents.
Complementing it with marine sediments core and data tree rings makes it possible to know about the principal traits of terrestrial weather in the lasts 420,000 years, practically four glacial-interglacial cycles.
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