Answer:
Although the best-known cause of a mass extinction is the asteroid impact that killed off the non-avian dinosaurs, in fact, volcanic activity seems to have wreaked much more havoc on Earth's biota. Volcanic activity is implicated in at least four mass extinctions, while an asteroid is a suspect in just one.
Explanation:
Answer:
The most likely cause of the Cretaceous mass extinction was an extraterrestrial impact in the Yucatán of modern-day Mexico, a massive volcanic eruption in the Deccan Province of modern-day west-central India, or both in combination.
Explanation:
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please help me
Answer:
what do you need help with?
Explanation:
which of the following happens to a cell in hypotonic solution
A- The cell gains water and expands
B- The cell stays the same
C- The cell loses water and shrivels
D- Water moves out of the cell
Answer:
In a hypotonic solution, the solute concentration is lower than inside the cell. If the water continues to move into the cell, it can stretch the cell membrane to the point the cell bursts (lyses) and dies
Hypotonic solutions have lower solute concentrations than cells. If water keeps entering the cell, it can strain the membrane until the cell bursts and dies. Therefore, option (A) is correct.
What is hypotonic solution?In comparison to another solution, a hypotonic solution will have a lower solute concentration because of its composition. Without another solution to compare it to, it is impossible to determine whether a solution is hypotonic, isotonic, or hypertonic. A solution is said to be hypotonic when it has a relatively low concentration of solutes in comparison to another solution.
As a consequence of this, the solute concentration is lower in a hypotonic solution than it is inside of the cell. If the water continues to enter the cell, it has the potential to stretch the cell membrane to the point where the cell lyses and dies as a result of the rupture.
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why is a magnitude scale called a backward scale?
Answer:
It is called the ‘backwards scale’ as the magnitude goes backwards, and because ancient astronomers had flaws in the scale, including the ‘backwards’ aspect.
Explanation:
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Why are there are so few species of plants that live in the oceans?
what questions do you have about the relationship between chromosomes and DNA in terms of how traits are inherited?
Answer:
NO questions are allowed ok
Explanation:
I NEED HELP ASAP
12. If I were a drop of water and I entered the cycle in the transpiration
stage, where would I go next?
Answer:
Condensation
Explanation:
Transpiration is when the plants give off water. THe water is like evaporating but from plants. It then turns into clouds.
Answer:
Runoff
Explanation:
water pours down leading to runoff, in this process water runs over the surface of earth.
help quick pls. please give scientific reasoning for your answer
Answer:
Expertise in 1 area
Explanation:
If you had a general knowledge of literally everything, that is great for mastering school. But, you are not going to school your whole life. You need college, work, and so on. When in college, it isn't like school, you can only choose 1 subject. Thus, it is good to expertise in 1 area.
I hope this helps you :)
help me in this question
Answer:
It is only explanation that is here so there is no question
Explanation:
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The energy from the water snake flows into the egret.
At what distance is gas production at its highest
The order of nucleotides in a gene affects the proper protein functioning in cells.
True or False
Answer:
True
Explanation:
The given statement is true.
• Changing the nucleotides sequence in the molecule of a DNA can change the amino acids in the final protein, resulting in protein malfunction.
• The genetic information of an organism is contained within the molecules of DNA.
• The information is stored in the proper order of sequence of bases and is organized into genes, each of the gene constitute the information required for producing a functional product.
• For example, the insulin gene comprises instructions for arranging the protein insulin from individual amino acid, when the sequence of nucleotides gets changed, the amino acids in the final protein also changes.
• This results in the improper functioning of insulin, and it fails to combine with the insulin receptor.
• This change in the sequence of nucleotides would lead to a disease state known as diabetes.
Thus, the given statement is true.
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the surface are of a sphere can be approximated as follows
Cells pass through a G checkpoint before entering mitosis. Ideally, if DNA damage is
detected, the cells do not enter mitosis until the damage is repaired. Why is DNA damage
repaired before cells enter mitosis?
F So that another round of DNA synthesis does not have to take place
G So that the chromosomes can align at the metaphase plate during mitosis
H So that the cytoplasm can be divided equally between the two daughter cells
J
So that healthy daughter cells are produced, allowing the organism to continue growing
Answer:
So that healthy daughter cells are produced, allowing the organism to continue growing
Explanation:
Damaged DNA is very bad for the cell. It can cause cell death or cancer, which the cell wants to avoid.
Therefore, before dividing and passing the DNA on to daughter cells, there are checkpoints to ensure that DNA replication takes place properly and that there is no damage to the DNA such as mutations or chromosome breaks.
This ensures the genetic material is intact and the cells can function normally, allowing the organism to grow.
Why don’t we have eclipses every month?
Answer:
Because the moon rotates around the Earth and is not in the same position every night
Explanation:
Predict how a lack of resources (food, water, shelter) would influence population size. Do you think the lack of availability would increase or decrease the size of a population? Why?
Answer:
a lack of resources would most likely decrease a population size because it will limit growth and decrease survival rates. There will also be more competition.
Explanation:
Please don't plagiarize. Thanks :)
Which type of specialized cell is responsible for sending signals throughout the body?
Nerve cells
Epithelial Cells
Muscle Cells
Blood Cells
its multi choice
Answer:
NERVE CELL
THANKS FOR POINTS
What is Amitosis cell
( direct cell) division?
Answer:
It is cell proliferation that does not occur by mitosis, the mechanism usually identified as essential for cell division in eukaryotes.
Explanation:
Please help ! Thank you
Answer:
Two Hydrogen one Oxygen
Explanation:
H2O H2 O
whats the definition of weathering
the process of wearing or being worn by long exposure to the atmosphere
Explanation:
wear away or change the appearance or texture of (something) by long exposure to the air.
"his skin was weathered almost black by his long outdoor life"
What is a vascular plant
Answer: A vascular plant is any one of a number of plants with specialized vascular tissue. The two types of vascular tissue, xylem and phloem, are responsible for moving water, minerals, and the products of photosynthesis throughout the plant. As opposed to a non-vascular plant, a vascular plant can grow much larger.
Explanation: The ferns, gymnosperms, and flowering plants are all vascular plants. Because they possess vascular tissues, these plants have true stems, leaves, and roots. Vascular tissue forms a central column, also called stele, through the plant axis for the transport of different substances. Vascular plants are said to have a true stem, leaves, and roots due to the presence of vascular tissues.
Shannon is making a Venn diagram to organize the characteristics of cell walls and cell membranes. Which pair of characteristics both belong in the two areas of the Venn diagram that do not intersect?
Answer:
its b
Explanation:
Answer: B) Contains mostly cellulose; forms the outer layer of animal cells.
Explanation:
nya
What are air masses and how do they form?
Answer:
a body of air with horizontally uniform temperature, humidity, and pressure.
Explanation:
An air mass forms whenever the atmosphere remains in contact with a large, relatively uniform land or sea surface for a time sufficiently long to acquire the temperature and moisture properties of that surface. The Earth's major air masses originate in polar or subtropical latitudes.
How does rhizopus reproduce
Rhizopus species grow as filamentous, branching hyphae that generally lack cross-walls (i.e., they are coenocytic). They reproduce by forming asexual and sexual spores. ... In sexual reproduction, a dark zygospore is produced at the point where two compatible mycelia fuse.
Explanation:
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if the prey population increases, the predator population will__
a.) increase
b.) decrease
Answer:
increase
Explanation:
The predator population will increase if the prey population increase because the predators will have more food. Hope I helped! Have a great day! ;)
a) increase.
Explanation:As the prey population increases, there is more food for predators. So, after a slight lag, the predator population increases as well. As the number of predators increases, more prey are captured. As a result, the prey population starts to decrease.
hope this help! sorry if im wrong
Identify Organelles in an Animal Cell
Label A
А
B
DONE
с
Label B
DONE
Label a
DONE
Label D
DONE
Answer:
Label A: NUCLEUS
label B : LYSOSOME
Label C: RIBOSOMES
Label D: CENTRIOLES
Explanation:
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To be differentiated from, the centrosome, which is a region of the cell adjacent to the nucleus where the centrioles typically reside when the cell is not going through mitosis.
What is the function of different cell organelle in cell?Much like an organ does in the body, an organelle is a subcellular structure that serves one or more distinct functions within the cell.
The nuclei, which contain genetic material, the mitochondria, which generate chemical energy, and the ribosomes, which put together proteins, are a few of the more significant cell organelles.
The formation of the mitotic spindle, which is essential for cytokinesis, depends on the centrioles.
Digestion is carried out by the lysosome. They aid in the removal of outdated and worm-out cells as well as foreign bodies. Cell division is aided by the centrosome.
Therefore, Label A: Nucleus label B : Lysosome Label C: Ribosomes Label D: Centriole.
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Which of the following explains why some plants look green?
Your Answer
A
chlorophyll is the main plant pigment and it absorbs mainly wavelengths of light that are
B
chlorophyll is the main plant pigment and it transmits mainly wavelengths of light that ar
chlorophyll is the only type of plant pigment found in leaves
x plants contain different pigments which absorb and transmit different wavelengths of ligi
Back
C chlorophyll is the only type of plant pigment found in leaves
Answer:
the answer is a
Explanation:
Which of the following is NOT an area of research that utilizes DNA sequencing?
a) evolutionary relationships between organisms
b) fossil identification
c) determining the rate if an enzymatic reaction
d) identifying bacterial species in the microbiome of the human intestine
Answer:
C.
Explanation:
What is the most common process of fossilization
Answer:
Permineralization.
Explanation:
Permineralization is a way of fossilization in which mineral deposits form internal casts of organisms, therefore, turning them into fossils.
Which one of the following is fixed from the atmosphere by bacteria?
O magnesium
O phosphorus
O nitrogen
O sulfur
O potassium
Nitrogen is the following that is fixed from the atmosphere by bacteria. Thus, the correct option for this question is C.
How nitrogen is being fixed by bacteria?Nitrogen is being fixed with the action of nitrogen-fixing bacteria. These bacteria invade the root of the plants where they stimulate the formation of root nodules.
It is the region where bacteria convert the free form of nitrogen into ammonia. This inorganic form of nitrogen is utilized by plants for their proper growth and development.
The fixation of nitrogen in very important. This is because the atmosphere of the earth consists of 78% of free nitrogen which is not usable in form of living organisms. While the fixation of nitrogen converts this free form of nitrogen into usable forms. For example, it can be easily assimilated by plants and other living organisms.
Therefore, nitrogen is the following that is fixed from the atmosphere by bacteria. Thus, the correct option for this question is C.
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What are some structures that are common in macroalgae?
Answer:
The macroalgal thallus (i.e., plant body) consists of blades (leaf-like lamina), reproductive sori (spore clusters), gas bladders [flotation organs (on blades in rockweeds, between lamina and stipes in kelps)], stipes [stem-like structures (may be absent)], and holdfasts [with or without haptera (finger-like extensions ...
Explanation:
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