Answer:
The dust and gases in a nebula are very spread out, but gravity can slowly begin to pull together clumps of dust and gas. As these clumps get bigger and bigger, their gravity gets stronger and stronger. Eventually, the clump of dust and gas gets so big that it collapses from its own gravity.
Explanation:
Two chromosomes that look alike and have the same sequence of genes in the same positions are a(n) ______ pair.
Answer:Gene
Explanation:
All cells contain a nucleus
true
false
[tex]\huge\sf{ANSWER}[/tex]
All cells contain a nucleus
FalseExplanation is in the pic
Hope it helps
Answer:
True.Explanation:
Why true?For me i say its true because :
All cells have three common organelles namely Cell membrane,cytoplasm and nucleus.Energy is needed to carry out all cellular processes. True Flase
Answer: true
Explanation: Inside every cell of all living things, energy is needed to carry out life processes. Energy is required to break down and build up molecules and to transport many molecules across plasma membranes.
hope this helps
Answer:
False
Explanation:
Not all cellular processes need energy in order to be carried out example .diffusion of particles across a cell membrane do not require energy .since diffusion is a passive form of transport(do not require energy).
1. List four sensations detected by the tactile receptors in the skin in the spaces below:
The four sensations detected by the tactile receptors in the skin are touch, pressure and vibration and tickle.
What are the 4 sensations that the receptors found in the skin have?They are nerve endings formed by a branched axon. They are distributed in almost all parts of the body and capture mechanical (pressure), thermal (cold and heat) and especially painful sensations.
This is because Tactile sensations are the ones that detect touch, pressure, and vibration. About six different types of tactile receptors are known.
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Which two things should the scrum team do during the first sprint?
Two things that the scrum team have to do in the first sprint are
Deliver an increment of releasable software. Develop and deliver at least one piece of functionality.What is a scrum team?This is a team that is usually made up of 5 people to 9 people. These people are a team of collaborators.
They team up to ensure that products are developed, completed and also delivered.
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Recall what you know about protein synthesis to answer the following questions.
RNA transfers the DNA code from the
DONE
of the cell to the
PLEASE HELP!
Answer:
RNA transfers the genetic
code from the nucleus of the cell to the cytoplasm of the cell.
Hope it helps!
One thing all mechanisms of evolution have in common is that ____________________.
They all lead to beneficial change in the population
They all lead to positive change in the population
They all lead to change in the population
They all lead to detrimental change in the population
Answer:
they lead to positive change in the population
What is a spring tide? When and why does it occur?
Answer:
Spring tides happen just after every full and new moon, when the sun, moon and earth are in line. That's when lunar and solar tides line up and reinforce each other, making a bigger total tide.
A spring tide occurs when there's a new or full moon. Because it follows the moon's lunar cycle, a spring tide happens twice per month. With the moon and sun roughly aligned the tides of Earth are on average slightly larger than usual.
source: https://ntslf.org › about-tides › tides
stegosaurus and ankylosaurus are united in a group called
Stegosaurus and ankylosaurus are united in a group called; Thyreophora
What is the name of the species group?Stegosaurus and ankylosaurus are united in a group called Thyreophora. They belong to that group because under the classification of dinosaurs, the Thyreophora consist mainly of Stegosauria which are commonly known as the plated dinosaurs and Ankylosauria which are commonly called the armored dinosaurs.
It should be noted that this group could also include their more basal relatives like Scutellosaurus and Scelidosaurus.
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Sexual reproduction increases the genetic variation of a species because:
Answer:
Sexual reproduction increases the genetic variation of a species because it involves combining of genetic materials of two parents/individuals to form an offspring.
Explanation:
Sexual reproduction is a type of reproduction that involves formation of an offspring by combination of male and female gametes. Each gamete carries a haploid set of chromosomes. When gametes from both the parents combine, a zygote is formed which has a diploid set of chromosomes. So, sexual reproduction involves combination of genetic materials of two different individuals, hence, it leads to genetic variation.
Select the correct answer. while examining a specimen under the microscope, janet discovers a structure that has some genetic material that has rna but not dna. what is the specimen? a. virus b. plant c. fungi d. bacteria e. animal
Answer:
A. Virus
Explanation:
Viruses chose to store their data in RNA so that they can make changes as their hosts develop immunities.
The specimen is of virus. The correct option is A.
Thus, A virus is an infectious microorganism made up of a protein-coated segment of nucleic acid (either DNA or RNA).
A virus can't multiply by itself; it has to infect cells in order to utilise the host cell's components to make copies of itself. A virus frequently causes harm to the host organism by killing the host cell in the process.
Viruses can infect people. But in reality, viruses infect a wide variety of organisms. For example, there are viruses that infect fungi and viruses that infect bacteria.
Thus, The specimen is of virus. The correct option is A.
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When coal has reached it hardest, darkest form, it is called
Answer: hard coal
Explanation:
Let me know when you need anything else.
Where the better adapted organisms survive to pass traits along to offspring.
The amino acids in the original partial sequence (N-term-...P-I-E...-C-term) have little to no impact on protein structure and function. However the amino acid sequence near the C-terminal end of the protein is required for normal function. Any amino acid changes in this region of the protein will result in a nonfunctional protein. Given this information, which reversion mutation in the gene would restore the normal function of the protein
Which is an example of a recent development used to address food
shortages in urban areas?
A.
B.
C.
Answer:
A
Explanation:
4. One student designed an experiment with sugar, water, and sand. The steps of the experiment are shown below.
• Make a thumb size hole at the bottom of an 18 oz styrofoam cup.
• Roll a piece of paper into a tube and place it in the middle of the cup over the hole.
• Fill the tube with sugar and surround the tube with sand.
• Pull out the paper tube slowly from the cup and then dip the cup into a beaker of water.
• Watch the sugar cubes dissolve in water to form gaps in the sugar layer.
The student's experiment demonstrates the formation of (1 point)
wells
O geysers
Osprings
sinkholes
The student's experiment demonstrates the formation of sinkholes; option C
What are sinkholes?Sinkholes are holes which appear on the land surface as a result of gaps between layers of earth underneath the ground.
These holes could be as a result of erosion of land
The student's experiment demonstrates how holes are dissolution of the sugar cube occurs due to hole allowing water in.
Therefore, the student's experiment demonstrates the formation of sinkholes.
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Answer:
Sinkholes
Explanation:
Why was natural selection an important contribution to the theory of evolution?
OIt proved that evolution is true.
OIt explained how evolution works.
OIt summarized the process of evolution.
It highlighted the main points of evolution.
OIt summarized the process of evolution.
The Atlantic puffin feeds on several species of Atlantic fish. A population of puffins living on Matinucus Rock was found to feed on the types of fish shown in the graph below. The beaks of this group of puffin are shaped to grasp Species A particularly well. Predict what would happen to the puffins’ beaks if another predator enters the area that is better at preying on Species A. Explain your reasoning based on what you know regarding genetic adaptations.
Answer:
The Puffins would have to find more food sources and the beaks would change accordingly to the food source they are going after.
Which of the following is NOT true of the Wada test? Group of answer choices It entails the injection of amobarbital. It can be used to determine which hemisphere is language dominant. It determines the extent to which the corpus callosum has been resected. It is used before elective surgery for the treatment of epilepsy.
The option that isn't true of the Wada test is D. It is is used before elective surgery for the treatment of epilepsy.
What is Wada test?It should be noted that Wada test is used to evaluate how important each side of the brain is with respect to language and memory function.
In this case, the option that isn't true of the Wada test is that is is used before elective surgery for the treatment of epilepsy.
In conclusion, the correct option is D.
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What results would be expected with no spontaneous generation of life
The results that would be expected with no spontaneous generation of life is no growth of microorganisms on the food particles.
What is spontaneous generation of life?The spontaneous generation of life was a idea which was used to explain the growth of microorganisms on food long ago die to the inability to see these organisms then.
Louis Pasteur by means of experiments proved this idea to be wrong. Life can only come from pre-existing life.
Therefore, the results that would be expected with no spontaneous generation of life is no growth of microorganisms on the food particles.
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17. What processes in the water cycle above are involved
in the movement of phosphorous and nitrogen
contaminants into lakes and oceans?
Answer:
The Nitrogen Cycle, Carbon Cycle, and the Phosphorous Cycle
Explanation:
These cycles together work together in harmony with the water cycle, transferring nutrients into the atmosphere and breaking them down into the soil.
What is the theory for the evolution of the vertebrate jaw?
The theory for the evolution of the vertebrate jaw was that the jaw came through the simple transformation of a ancestral rostral gill arch.
What is a vertebrate?A vertebrate simply means an organism that has a spine or backbone. Examples include mammals, reptiles, etc.
In this case, the theory for the evolution of the vertebrate jaw was that the jaw came through the simple transformation of a ancestral rostral gill arch.
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Alan lives in an area that has a huge park. Moreover, there is good quality of air and water in his region. What is the possible consequence of such conditions?
A.
premature deaths
B.
asthma
C.
cardiovascular diseases
D.
high life expectancy
Answer:
D. High Life Expectancy
Explanation:
Air pollution lowers life expectancy and causes tons of premature deaths in areas. The area that Alan lives in has good air quality which means that there is obviously going to be a increase in life expectancy. If water quality is bad in an area it can cause chronic illnesses (such as cancer), gastrointestinal illnesses, and even effect the nervous and reproductive systems in a bad way. So the fact there is good water quality in the region the area Alan lives in, he is pretty much guaranteed for higher life expectancy. Therefore the best answer is Option D.
what is the largest bone in the human body?
Answer:
Femur bone
Explanation:
Answer is femur bone
Do You guys have summer school ?
Answer:
yes, we have summer school
Answer:
no, just extended school for some reason
Explanation:
i love school sm
wbu
The ________ are the primary organs for filtration of the blood.
The primary organ used in the filtration of blood in the body is the kidney.
The kidney is a bean shaped organ that is about the size of a human fist. It is located at the bottom of the rib cage. There are two kidneys in the body, each kidney is located at each side of the spine in the body.
The kidney filters unwanted substances from the blood and pass them out of the body as urine. Blood is filtered in a part of the body known as glomerulus.
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Which structures are involved in creating insulin inside pancreatic cells and to liver cells
Answer:
i have no idea ....................
Answer:
I think the answer is pancreatic isletsColorado has a vast population of lodgepole pines. A population of lodgepole pines has been killed in a section of the forest. What is a possible limiting factor of that population?
devastation by the pine bark beetle
Colorado’s long history of acidic soils
genetic variability
shallow root system
The possible limiting factor is the devastation by the pine bark beetle.
What is a limiting factor?A limiting factor is any factor that affects the size of a population of organisms which inhibits their growth or even existence.
The possible limiting factor of population of lodgepole pines is the devastation by the pine bark beetle.
This is so because only a section of the population was affected and not the whole.
If it was the Colorado’s long history of acidic soils, genetic variability and shallow root system, the whole population of lodgepole pines would have been affected.
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Answer:
a. devastation by the pine bark beetle
Explanation:
Which event took place during the Copernican revolution, when most people started to believe in a heliocentric model of the solar system?
Aristotle developed his model of the solar system.
Copernicus rediscovered Aristarchus’s heliocentric model.
Kepler's laws of planetary motion.
Newton’s theories of gravity were dismissed and considered invalid.
Copernicus rediscovered Aristarchus's heliocentric model. Thus, option "B" is correct.
How, explain your answer?The event which took place during the Copernican revolution, when most people started to believe in the heliocentric model of the solar system was that Copernicus rediscovered Aristarchus’s heliocentric model.
Thus, option "B" is correct.
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19.8)What type of cell is illustrated here?
What part of the cell is #1?
What part of the cell is #2?
What part of the cell is #3?
What part of the cell is #4?
What part of the cell is #5?
