Mitosis produces diploid cells, which are identical to the parent cell. These cells are crucial for growth, repair of tissues, and asexual reproduction. In contrast, meiosis creates haploid cells or gametes needed for sexual reproduction.
Mitosis is a process of cell division that produces two identical daughter cells from a single cell, each maintaining the diploid state of the parent cell. In other words, through mitosis, a cell divides into two cells, each with the same number of chromosomes as the original cell. This process allows for growth, repair of tissues, and asexual reproduction in organisms.
On the contrary, meiosis is a type of cell division that results in four daughter cells, each with half the number of chromosomes of the original cell. These are known as haploid cells which are often referred to as gametes or sex cells. These cells are essential for sexual reproduction because when two gametes combine during fertilization, they restore the diploid state.
Summing up, mitosis produces diploid cells whereas meiosis generates haploid cells.
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Which characteristic is most important in determining whether a hypothesis will be incorporated into a theory?
7. This question is based on the following poem.
Some say life's a Monopoly game,
spread like a picnic to kill the grass,
assuring no winners save some ants,
until amid the fading rants,
none there are to punch one's pass
into the halls of fame.
The metaphor for life in this poem is
A. a picnic.
B. halls of fame.
C. some ants.
D. a monopoly game.
The metaphor for life in the poem is a Monopoly game, as the poem begins with 'Some say life's a Monopoly game,' comparing life's journey to the board game.
The metaphor for life in the poem given is D. a Monopoly game. The opening line of the poem, "Some say life's a Monopoly game," explicitly states that life is being compared to the board game Monopoly. This is an example of metaphor as a literary device, where life is not literally a board game, but it is being compared to one in order to illustrate the idea that life, like Monopoly, has various ups and downs, successes and failures, and is ultimately a game of chance and strategy.
Which of the following statements is not true of the use of genetically engineered bacteria for insulin production? Using genetically engineered bacteria makes insulin production much faster and produces larger quantities. Genetically engineered bacteria make higher quality insulin that is more easily used by diabetics. Genetically engineered insulin made from bacteria is much cheaper to produce.
Why are chloroplast green
Which of the gazelle’s naturally selected traits is shown in this picture to be an evolutionary advantage?
a)feeding only at certain times of the day
b)coat color for blending in with dry grass
c)specialized gut due to a diet of grasses
d)specific gender roles to diminish predation
in rabbits, B represents the allele for black coat and b represents the allele for a white coat. black is dominant over white. if a rabbit has the genotype BB what is the rabbits phenotype?
a) gray
b)black
c)white
d)BB X bb
Answer:
Black
Explanation:
A dominant allele for a given gene is the one that can express itself in both homozygous as well as heterozygous conditions.In the given question it has been stated that the allele B is dominant over b, and since the allele B codes for black coat color, this means that the rabbit having the phenotype BB will have black coat color.Brandon wants to maintain his weight for wrestling. He eats large meals, but then vomits the food shortly after. Brandon has _____.
bulimia
anorexia
alcoholism
lung cancer
What is the most likely effect on the energy pyramid if all producers are removed from the ecosystem??
Answer:
c) the energy pyramid will be completely disturbed.
Explanation:
Why is it necessary to eliminate absolutely all invasive fire ant colonies to eradicate the invasive population?
What type of cell, once it enters the tissues, is converted into a macrophage that attacks invaders by phagocytosis?
How big is a blood cell? How does its size compare to Dust Mites, and then to the E. coli bacteria
All cells have DNA or pther genetic materials . Is this apart of the cell theory or not apart
Environmental science, check my answers?
1. Most familiar life forms live in regions of biomes that humans inhabit.
True <
False
2. Biodiversity is the variety of life forms that exist or existed in the past.
True <
False
3. Changes in an organism can't occur because of an outside force, such as a massive earthquake.
True
False
Your best answers are T T F
Someone plz help I'm super confused
What happens after pollen lands on the stigma of a flower? it grows a tube to travel down to the ovary.it fertilizes the plant at the stigma.it grows a tube to travel to the style.it grows a tube to travel to the petal.?
Answer: it grows a tube to travel down to the ovary
Explanation:
As a result of pollination, pollen grain lands on the sigma of the pistil or carpel. On the stigma pollen grain begins to germinate and grows a long pollen tube. The pollen tube grows longer and makes its way from the stigma, down the style and reaches to the ovary. Pollen tube carries two male gametes or sex cells. One male gamete fertilize the egg cell to produce zygote and the gamete fuses with polar nuclei to form primary endosperm cell.
Answer:
It grows a tube to travel down to the ovary
Explanation:
Several species of warblers can live in the same spruce tree ONLY because they?
have different habitats within the tree.
don’t eat food from the tree.
occupy different niches within the tree.
can find different temperatures within the tree.
Which trilobite characteristic did not change through time? a. shape of eyes c. number of body segments b. 3-lobed body d. number of spines d. number of spines is a trilobite characteristic does not change through time.
The right answer is the lobed body.
The name trilobite comes from the subdivision of the body into three longitudinal lobes:
A medial lobe, the rachis,
And two lateral lobes, the pleura.
There is also a subdivision into three regions from front to back: the cephalon ("head"), the thorax and the pygidium ("tail").
The number of spines is a trilobite characteristic that did not change over time, unlike the shape of their eyes or the number of body segments.
Explanation:Trilobites are an extinct group of marine arachnomorph arthropods. They are recognized by their characteristic 3-lobed, 3-segmented body structure. Although trilobites underwent numerous changes over time due to evolution, one characteristic that did not change was the number of spines. The number of spines remained consistent throughout the trilobite's existence. This is in contrast to other trilobite characteristics such as the shape of their eyes or the number of body segments, both of which evolved over time in response to changing environmental conditions.
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How has the Douglas-fir adapted to enable its survival in the taiga biome?
a.
low growing
b.
perennial
c.
waxy needles
d.
survive on limited nutrients
Answer: c. waxy needles
Taiga is the biome with needle leaf trees. It is a cold biome. Douglas-fir have long, thin and waxy needle shaped leaves. Wax prevents the loss of water through transpiration and also prevents freezing and leaves being drying out.
Which of the following plant adaptations protects grassland plants from grazers?
a.
long roots
b.
growing low to the ground
c.
water storage
d.
growth pattern
The correct answer is:
d. growth pattern
Explanation:
Plants in the grassland must face dry situations, fires, and grazing animals. They have long, narrow leaves, long roots, soft stems, and can even go lethargic to sustain their tough environment. They have adjusted how they grow and scatter their pollen and seeds so that more plants can live in this incredible habitat.Average growth is the series of changes in height, weight, and head circumference that are harmonious with authorized standards for a released population.
#1: Which of the following is true of the electrons in the Bohr model of an atom?
A. They exist at specific energy levels.
B. They cannot move from one orbital to another.
C. They are equally close to the nucleus.
D. They give off energy as they jump to a higher level.
Although the plant can grow nearly 200 feet tall, it has a very shallow root system. This feature best suits it to climates that receive regular precipitation.
In which biome would you most likely find this plant?
A) chaparral
B) savanna
C) temperate forest
D) tundra
A gardener accidentally trims the leaves of a green plant too short. The leaves are now much smaller. He notices that the plants grow more slowly than it used to. Which sentence best explains why the plant grows more slowly?
A - The plants has too many thylakoids in its cells
B - The plant now gets too much sunlight to be healthy.
C - The platn has more cholorplast in its cells
D - the plant has less cholorphyll to produce energy.
The right answer is D.
Light is essential for any plant so as chlorophyll. They allow plants to convert light energy into sugars.
It appears that a correlation links productivity and chlorophyll under special conditions. The more chlorophyll there is, the more electron transfer is ensured, the more photosynthesis is amplified and the more oxygen and glucose are produced.
The amount of Chlorophyll contained in the leaves provides information on the health of the plant, its vigor and ensures that its Nitrogen requirements are met. The trace elements necessary for the plant are drawn by the roots in the soil.
What cell organelle controls the activities of the entire cell?
Nucleus is called the brain of the cell. Nucleus is the organelle which controls the activities of the cell.
The command center of eukaryotic cells is the nucleus. Additionally, it controls how genes and gene expression are coordinated in Chromosomes, nuclear membrane, nucleoplasm, and nucleolus make up the nucleus' structure. When compared to other cell organelles, which make up around 10% of the cell's volume, the nucleus is the most noticeable organelle. A eukaryotic cell typically possesses the one nucleus. Some eukaryotic cells are enucleate.
The first organelle to be identified or found was the nucleus. The nuclear envelope, which is a nuclear membrane, the nucleoplasm, the nucleolus, and the chromosomes make up the cell nucleus. The matrix found inside the nucleus is known as nucleoplasm, sometimes known as karyoplasm. The cytoplasm and the components of the nucleus are separated by the nuclear membrane.
Therefore, nucleus controls the cell and its activities.
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The diagram below represents two cells viewed using the same magnification with the same microscope.
One possible conclusion that can be drawn about the activity of these two cells is that
Based on the visible features, one possible conclusion is that Cell B is more active than Cell A. The correct option is B. more active transport occurs in cell A than cell B.
Based on the image you sent, here are some possible conclusions that can be drawn about the activity of the two cells:
Cell A:
Less active: The presence of a cell wall suggests Cell A is a plant cell. Plant cells typically have less metabolic activity compared to animal cells due to their slower growth rates and photosynthetic energy production.
Storing energy: The large central vacuole in Cell A could indicate storage of excess nutrients or waste products, suggesting lower metabolic activity compared to Cell B.
Cell B:
More active: The absence of a cell wall suggests Cell B is an animal cell. Animal cells are generally more metabolically active than plant cells due to their diverse functions and constant need for energy from external sources.
Engaged in protein synthesis: The prominent rough endoplasmic reticulum (RER) in Cell B indicates high protein production activity, suggesting a more active metabolic state compared to Cell A.
Complete Question:
The diagram below represents two cells viewed using the same magnification with the same microscope.
One possible conclusion that can be drawn about the activity of these two cells is that:
6.
Compared to the time in Earth's history before humans appeared, rates of soil erosion are _____.
about the same
faster
slower
more unpredictable
7.
The process responsible for moving material downslope under the influence of gravity is called _____.
erosion
weathering
mass movement
soil formation
8.
Why can the removal of vegetation trigger mass movements?
The soil loses nutrients and begins to crumble.
The plant roots bind the soil and regolith together.
The shaking triggers mass movements.
The plan6.
Compared to the time in Earth's history before humans appeared, rates of soil erosion are _____.
about the same
faster
slower
more unpredictable
7.
The process responsible for moving material downslope under the influence of gravity is called _____.
erosion
weathering
mass movement
soil formation
8.
Why can the removal of vegetation trigger mass movements?
The soil loses nutrients and begins to crumble.
The plant roots bind the soil and regolith together.
The shaking triggers mass movements.
The plan ...?
6. Answer;
- Faster
Explanation;
Compared to the time in Earth's history before humans appeared, rates of soil erosion are faster.
-Soil erosion is the wearing apart of topsoil. Topsoil is the top covering of soil and is the abundant fertile because it includes the several natural, nutrient-rich minerals. Every year, around 75 billion tons of soil is disintegrated from the land—a rate that is about 13–40 times as quick as the typical rate of erosion.
Additionally, some human activities associated with building structures increases the rate of erosion
7. Answer;
-Mass movement
The process responsible for moving material downslope under the influence of gravity is called mass movement.
Explanation;
-A mass movement is the geomorphic process through which soil, sand, regolith, and rock move downslope typically as a solid, continuous or discontinuous mass, largely under the force of gravity.
-It involves the sudden movement of a block of material along a flat, inclined surface is called a rock slide or a slide.
8. Answer;
The plant roots bind the soil and regolith together.
The removal of vegetation may trigger mass movements because the plant roots bind the soil and regolith together.
Explanation;
-Vegetation removal can trigger mass wasting or mass movement as vegetation stabilizes soil. When it is removed from a slope, the slope is vulnerable to water and wind erosion.
which of the following could describe a population that is decreasing in size
A population that is decreasing in size can be due to factors such as low birth rates, high death rates, emigration exceeding immigration, or environmental changes affecting reproductive success. Genetic diversity plays a crucial role in the vulnerability of a population to decline, making it more susceptible to recessive lethal alleles and changing environmental conditions. The extinction vortex describes how declining populations face increasing risks of extinction due to loss of genetic diversity, inbreeding depression, and other factors.
If a corn plant has a genotype SsTt, what are the possible genetic combinations that could be present in a single grain of pollen produced by the plant?
(A) St, sT
(B) ST, st
(C) SS, Tt, ST, st
(D) ST, sT, St, st If a corn plant has a genotype SsTt, what are the possible genetic combinations that could be present in a single grain of pollen produced by the plant?
(A) St, sT
(B) ST, st
(C) SS, Tt, ST, st
(D) ST, sT, St, st
Answer:
The correct answer would be option D.
Explanation:
Pollen of a plant is a gamete, that contains half of the alleles are required to produce the plant. Pollen fuse with stigma and complete the required alleles or genetic information.
Possible combinations in pollen would be one allele from each trait in every form either dominant or recessive. So ST, St, sT, st. would be the correct possible genetic combination present in a single grain.
Thus, the correct answer is option D.
Answer:
Option D
Explanation:
There are two different traits represented by the term "SsTt". Where "S" is the allele for a dominant trait 1 and "s" is the allele for a recessive trait 1. Like wise "T" is the allele for a dominant trait 2 and "t" is the allele for recessive trait 2.
In a genetic combination , both the allels of both the traits will pair up with each other one by one.
i.e "T" will pair up with both "S" and "s" to form "TS" and "Ts" gametes
Similarly "t"will pair up with both "S" and "s" to form "tS" and "ts" gametes
Hence, option D is correct
Frogs have lungs for breathing, but they also absorb dissolved oxygen directly through their skin. This allows respiration to occur when they are underwater. When they are on land, mucus keeps their skin moist to continue to absorb dissolved oxygen from the air. Which statement about water is best illustrated by this example?
A. Liquid water can transport nutrients.
B. Water breaks down into oxygen molecules for respiration.
C. Water is found in every cell of an animal’s body.
D. Liquid water is necessary for plants and animals.
Answer: B. Water breaks down into oxygen molecules for respiration.
Water is the required for photosynthesis, a process by which plants (terrestrial and aquatic) makes their food by utilizing water as a reactant to produce oxygen and glucose as product. The glucose act as a source of energy for conducting various metabolic processes in plants but oxygen is released in the air.
[tex]6CO_2\ \ \ \ +6H_2O\rightarrow\ C_6H_{12}O_6+6O_2\\carbon\ \ \ \ water\ \ \ \ \ \ \ \ glucose\ \ \ \ \ \ \ oxygen\\ dioxide[/tex]
This oxygen is necessary for terrestrial and aquatic animals for respiration. Therefore, water breaks down into oxygen by the process of photosynthesis, hence water plays important role in respiration in living beings.
Find the independent and dependent variables. "If skin cancer is related to ultraviolet light, then people with a high exposure to UV light will have a higher frequency of skin cancer. ...?
Answer:
skin cancer is and ultraviolet light
Explanation:
Which of the following molecules get recycled during photosynthesis
When the light absorbs by the photosynthetic apparatus, the water molecules break down to produce essential material to continue the photosynthetic cycle as electron and H-ions. The H-ions becomes stored in thylakoid chamber and passed through the ATP synthetic machines to refill the ADP or AMP molecules. The generated electron passes through the various stages of photosynthetic series to finally produce the NADPH which also acts as energy transfer compound. At the PSI, the electron transfer to the NADP to generate NADPH.