Answer:the presence of a true nucleus
Explanation:
(vii) All the activities of a cell is controlled by?
Answer:
nucleus
Explanation:
The nucleus controls all of the cell's activities, such as growth and metabolism, using the DNA's genetic information. Within the nucleus is a smaller structure called the nucleolus, which houses the RNA (ribonucleic acid).
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Question 7 of 10
What is the difference between a scientific law and a scientific theory?
O A. A scientific law has been proved with scientific evidence. A
scientific theory can change when new evidence is found that
does not support the theory.
B. A scientific law is supported by research. A scientific theory is only
an educated guess.
C. A scientific law describes how natural events happen. A scientific
theory is an explanation of natural events.
D. A scientific law involves mathematics. A scientific theory is a
description based on observations.
Answer: I belief its B. A scientific law is supported by research. A scientific theory is only an educated guess.
-Like theories, scientific laws describe phenomena that the scientific community has found to be provably true. Generally, laws describe what will happen in a given situation as demonstrable by a mathematical equation, where as theories describe how the phenomenon happens.
What could happen if the brain stem were damage
ANSWER:
A brain stem injury can cause DIZZINESS or LACK OF MOTOR FUNCTION,with more severe cases resulting in PARALYSIS,COMA,or DEATH.Treatment can be extremely expensive and many victims are unable to work while coping with a brain stem injury.
What does the type of animals and plants brought to the New World demonstrate about the needs of Pre-Columbian civilizations
Answer:
The answer would be D because Pre-Columbian civilizations didn't have any domesticated animals such as cows, chickens, and horses. This fact limited the accessibility to meat for the Pre-Columbian civilizations.Explanation:
What is the role of chromosomes in the cell nucleus?
Explain in 5 - 10 sentences
Answer:
Chromosomes are tightly packed DNA and proteins. The DNA and proteins take on a tightly coiled structure within the chromosome. The chromosomes are then kept inside the nucleus. Their role is to carry basic genetic material. This provides the cell with genetic information that's used to carry out different cellular functions. These functions include survival, growth, and the ability to reproduce.
Which genetic disorder is this karyotype for?
cystic fibrosis
Down syndrome
sickle cell anemia
hemophilia
where does sperm production occur within the testis?
Answer:
seminiferous tubules
Explanation:
Sperm production happens in coiled structures known as seminiferous tubules.
Name some organisms that are producers
First of all, we must understand what we are looking for. We know that producers are basically organisms which make their own food. Therefor some examples are:
1) Algae (creates its own food using energy from the sun)
2) Plants (creates its own food using energy from the sun)
3) Phytoplankton
I hope this helps!
What are differences between the structures ofDNA and RNA?
Sources:
The Differences Between DNA and RNA - ThoughtcoDifference Between DNA and RNA - Byjusdistinguish between uric acid, urea and ammonia
Answer:
Explanation:
Ammonia is associated with aquatic animals; urea is associated with most terrestrial and semiterrestrial vertebrates, but rarely land invertebrates (Campbell et al., 1972); and uric acid is the major product of terrestrial invertebrates, birds and reptiles (Prosser & Brown, 1961).
What happens to the peak wavelength in the blackbody spectrum as the temperature of a star increases?
A. The peak wavelength decreases.
B. The peak wavelength increases.
C. The peak wavelength doesn't change.
D. The peak wavelength decreases and then increases
Answer:
D
Explanation: the peak wavelength in the blackbody decreases
the two organs that play an important role in maintaining acid-base balance are the
Answer:
the lungs and kidneys.
Explanation:
the middle primary brain vesicle, the mesencephalon, gives rise to which adult brain structure?
A farmer planned to plant 120 seeds in all. After planting 10 more seeds each day than was planned.
Answer:
120+10x=x
Explanation:
120+10 times the number of days equals answer
scients is a combination of three things what are they?
Answer:
Modern Science is mainly constituted of three main branches, i.e. Natural Sciences, Social Sciences, and Formal Sciences as these three areas peruse upon the nature of our world and the universe in the broadest way. Thus, the three main branches of Science are: Natural Sciences. Social Sciences, and formal
Ribosomes are the site where— are produced.
Amino acids are coded for by triplet bases in RNA called—.
Answer:
Ribosomes are the site where proteins are produced. Amino acids are coded for by triplet bases in RNA called codons
Explanation:
why is it important photosynthetic organisms to have access to water
Answer:
Plants also need water for photosynthesis. Photosynthesis is what plants do to create their food, and water is critical to this process. ... The water from the leaves evaporates through the stomata, and carbon dioxide enters the stomata, taking the water's place. Plants need this carbon dioxide to make food.
A woman who has had five preganacies tests positive for HIV by Western blot. What is the most likely reason for this result
Explanation:
Multiparous women often have HLA antibodies. The Western blot antigens are derived from HIV grown in human cell lines having HLA antigens. A cross reaction with HLA antigen(s) in the Western blot could have occurred.
The anterior rami of spinal nerves ______ are called intercostal nerves because they travel in the intercostal space sandwiched between ______.
Answer: T1-T11; two adjacent ribs
Explanation:
The anterior rami of spinal nerves T₁ - T₁₁ are called intercostal nerves because they travel in the intercostal space sandwiched between two adjacent ribs.
What are the rami of spinal nerves?A typical spinal nerve typically branches out into rami as soon as it exits the intervertebral foramen.The smallest of the two main branches is the posterior (dorsal) ramus. It innervates the skin of the back as well as the deep muscles of the back, such as the transversospinalis and erector spinae. The bigger of the two main branches is the anterior (ventral) ramus. The anterior ramus divides into numerous additional branches that innervate the upper limbs, lower limbs, and anterior and lateral regions of the trunk. Numerous anterior rami develop into nerve plexuses.Learn more about rami of spinal nerves here:
https://brainly.com/question/4403285
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the process of ending a conflict through cooperation and compromise is called
Answer:
the process of ending a conflict through cooperation and compromise is called. conflict resolution. the use of communication and, in many cases, compromise to settle a disagreement is known as. negotiation.
Explanation:
Which butterfly-shaped portion of the brain is responsible for spinal reflexes?
Answer:
b. Gray matter
Explanation: is correct
Two women gave birth to girls in the same hospital at the same time. The nurses think they may have accidentally switched the babies' name tags and given the babies to the wrong parents. One baby, Jane, is type O blood. The other baby, Mary, it type A blood. The father in the first set of parents, the Reds, is blood type A and the mother is blood type B.The father in the second set of parents, the Greens, is blood type AB and the mother is blood type O.Which baby belongs to the Reds?
Answer:
Jane belongs to the greens
Mary belongs to the Reds
Mary belongs to Greens, whereas Jane belongs to Reds (it is due to the allele in the parents).
What is the ABO blood system?The blood system is an allele system that determines the presence of antigens in the red blood cells.
In the ABO blood system, the A and B alleles are codominant, whereas the O allele is recessive and masked by A and B.Mary is type A blood, whereas Jane is type O blood which can be due to the following allele combinations:Reds
A O
B AB OB
O OA OO
Greens
A B
O AO OB
O AO OB
In conclusion, Mary belongs to Greens, whereas Jane belongs to Reds (it is due to the allele in the parents).
Learn more in:
https://brainly.com/question/3221452
When does osteogenesis begin?
Answer:
a. When a fetus is 13-15 weeks old
Explanation: is correct
a cockroach is a fast-moving insect. how can an animal with an open circulatory system be so speedy?
Cockroaches have 6 legs and each leg has 3 knees, 18 knees in total. Since the cockroach has so many joints in its legs its can accurately pick up speed when running away from something
An animal like a cockroach with an open circulatory system is so speedy because in these organisms tracheal system delivers oxygen throughout the body.
What is an Open circulatory system?An open circulatory system may be characterized as a type of circulatory system in which blood vessels are completely absent and blood generally flows freely through the cavities of the body. This type of circulatory system is present in arthropods.
Due to the absence of blood vessels, the flow of blood is extremely high in animals that have an open circulatory system. Apart from this, in cockroaches, oxygen is carried out through the tracheal system because of the absence of the lungs. So, it makes the process so speedy.
Therefore, an animal like a cockroach with an open circulatory system is so speedy because in these organisms tracheal system delivers oxygen throughout the body.
To learn more about the Open circulatory system, refer to the link:
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What is the process called when cells break off of an original tumor and create new cancer sites?
OOOO
benign
malignant
metastasis
biopsy
Answer:
metastasis is your answer fits the description of host sitr to new site
What are c3, c4, and cam plants?.
How can offspring be created that have a specific phenotype and genotype?
Explanation:
The two things a Punnett square can tell you are the genotypes and phenotypes of the offspring. A genotype is the genetic makeup of the organism. This is shown by the three genetic conditions described earlier (BB, Bb, bb). The phenotype is the trait those genes express. But when it comes to apperences, a phenotype is an individual's observable traits, such as height, eye color, and blood type. The genetic contribution to the phenotype is called the genotype. Some traits are largely determined by the genotype, while other traits are largely determined by environmental factors.
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100!!! Points
Part A
Tectonic plate movement is the reason why northern California has a very different landscape than southern California. Two different tectonic plates, each moving in different directions, border the western side of the North American Plate. Use the map to identify the two tectonic plates that border the North American Plate to the west.
map of the world's major and minor tectonic plates
Part B
On the map, take a close look at the boundary along southern California and Mexico’s Baja California Peninsula. The arrows on the map show the direction and speed of the plates along this boundary in millimeters per year. Based on the speed and direction of the arrows, identify the type of plate boundary at this location. Which landforms or events are likely to occur there as a result? (Hint: It may be helpful to model the motion of the plates using your hands or pieces of paper.)
a map of North America with the fault lines marked
Answer:
Where's the map?
Explanation:
40 points!!!!!!Select the correct answer from each drop-down menu.
Humans use many chemical substances for farming that consequently affect biodiversity. These compounds, which are rich in nitrogen
and phosphorus, are used to fertilize crops. Excessive use of these compounds causes
______ , which leads to
_____ in bodies of water.
Answer:
eutrophication and algal growth
Use the
Color-Enhanced TEM Magnification: 15,000 x
6. The photomicrograph shows which kind of cell?
A. prokaryotic cell C. animal cell
B. eukaryotic cell D. plant cell
A. Prokaryotic Cell.
..............
