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The cells that are haploid are those that only have one inherited genetic load from their progenitors. In this case, only ovocytes, and sperm cells are haploids. In our bodies, all other kinds of cells that are not sex cells, like those of the hearth, of the liver, which are somatic cells, are diploid instead. The correct answer then is the second one, the b option.
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34 POINTS. answer fast please
Argue the significance of the value that comes from economic uses of forests, including at least two examples of the different types of economic forest use, and explain how a forest's economic value relates to its ecological value.
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Answer:
racist
Explanation:
give me the points
Explain why Extreme heat can threaten human survival
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Answer:
Extreme heat events can be dangerous to health – even fatal. These events result in increased hospital admissions for heat- related illness, as well as cardiovascular and respiratory disorders. Extreme heat events can trigger a variety of heat stress conditions, such as heat stroke.
Explanation:
Why are Euglena and Trypanasoma placed in different classes?
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Explanation:
Euglena and Trypanosoma are placed in different classes because they belong to different taxonomic groups based on their distinct characteristics, evolutionary relationships, and overall organization. The classification of organisms is determined by their shared similarities and differences, allowing scientists to group them into various hierarchical categories.
Euglena and Trypanosoma belong to different classes due to the following reasons:
1. Morphological Differences: Euglena is a unicellular, freshwater protist that possesses a characteristic whip-like tail called a flagellum, allowing it to move and propel itself. It also contains a photosynthetic pigment called chlorophyll, enabling it to perform photosynthesis. On the other hand, Trypanosoma is a parasitic protist that causes diseases such as African sleeping sickness and Chagas disease. It possesses a single flagellum but lacks chlorophyll and cannot perform photosynthesis.
2. Evolutionary Relationships: Classification takes into account the evolutionary relationships between organisms. Euglena belongs to the class Euglenophyceae, which includes various species of photosynthetic protists. They are considered to be a diverse group that originated from a common ancestor. Trypanosoma, however, belongs to the class Kinetoplastea, which includes various parasitic flagellates. These organisms are not closely related to Euglena, indicating a distinct evolutionary history.
3. Biochemical and Genetic Differences: Euglena and Trypanosoma also differ biochemically and genetically. They have distinct cellular structures, metabolic pathways, and genetic compositions that contribute to their unique characteristics and lifestyles. These differences further support their classification into separate classes.
By considering these factors, taxonomists and scientists classify organisms into appropriate hierarchical categories, ensuring that organisms with shared characteristics are grouped together while differentiating them from organisms with distinct features. The placement of Euglena and Trypanosoma in different classes reflects their distinct biological attributes and evolutionary histories.
Answer:
Explanation:
Euglena and Trypanosoma are both unicellular organisms that belong to the kingdom Protista, but they are placed in different classes because they have different characteristics and lifestyles. Euglena is a photosynthetic organism that can produce its own food using sunlight, and it has a structure called a chloroplast that contains pigments such as chlorophyll. It also has a flagellum, which it uses to move around in its aquatic environment. Euglena belongs to the class Euglenophyceae, which includes other photosynthetic unicellular organisms that have similar characteristics. On the other hand, Trypanosoma is a parasitic organism that feeds on the blood of its host, and it does not have the capability to photosynthesize. It moves by using a single flagellum and has a unique structure called a kinetoplast, which contains DNA and other important cellular components. Trypanosoma belongs to the class Kinetoplastea, which includes other parasitic unicellular organisms that have similar characteristics. Therefore, Euglena and Trypanosoma are placed in different classes based on their different modes of nutrition, locomotion, and other morphological and physiological characteristics.
I. Os neurotransmissores são moléculas armazenadas e liberadas em vesículas sinápticas. Sua síntese ocorre no terminal axonal a partir de precursores metabólicos ali presentes. Estas moléculas participam da comunicação sináptica.
PORQUE
II. Elas percorrem longas distâncias, atingindo várias células do organismo por meio da corrente sanguínea.
A respeito dessas asserções, assinale a alternativa correta.
Alternativas:
a)
As asserções I e II são proposições verdadeiras e a II justifica a I.
b)
As asserções I e II são proposições verdadeiras e a II não justifica a I.
c)
A asserção I é uma proposição verdadeira e a II, falsa.
Alternativa assinalada
d)
A asserção I é uma proposição falsa e a II, verdadeira.
e)
As asserções I e II são proposições falsas.
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Answer:
A
Explanation:
Science how the life cycle works
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Answer:
whats the question so i can answer it?
Explanation:
Which step is part of the engineering design process but is not part of a
scientific investigation?
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The step which is a part of the engineering design process but is not part of a scientific investigation is to imagine
What is scientific investigation?Scientific investigation simply refers to those steps and procedures used to in unraveling the science behind a particular naturally observed phenomena.
So therefore, the step which is a part of the engineering design process but is not part of a scientific investigation is to imagine
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Grey decides to take his jet-ski out for a spin. He first skis six meters south, and then turns west and skis eight meters. What is Grey's distance from the dock? What is his displacement from the dock?
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Primates are found mainly in tropical regions. Which of the following is true of tropical environments? Group of answer choices Primate foods are affected more by temperature than by rainfall. Daily temperature fluctuations are smaller than annual fluctuations. Seasonal changes are virtually nonexistent. Primate foods are affected more by seasonal changes due to rainfall than by changes due to temperature.
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Which statement describes a feature of equal are projection?
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Option C
Latitude lines meet at the poles.
Explanation:
Several equivalent projections were developed in an attempt to minimize the distortion of countries and continents of planet Earth,keeping the area constant.
hope it helps
Answer:
c
Explanation:
i did it already
The fluid within the chloroplast that is similar to cytoplasm is the _________. Select one: a. Thylakoids b. Grana c. Lamellas d. Stroma PREVIOUS PAGE
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Answer:
stroma
Explanation:
True or false. In nature organisms produce more offspring than can survive.
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Answer: True
Explanation:
Organisms produce more offspring than actually survive. Organisms can die from many causes: disease, starvation, and being eaten, among other things. The environment can't support every organism that is born. Many die before they are able to reproduce.
How much photosynthesizing material does it take to keep up with a single human's oxygen
needs?
A. 2 house plants
B. % acre of trees
C. 8 bathtubs of algae
D. 1 medium pool worth of bushes
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Water and algae are able to provide total oxygen which is enough for a person. So, 8 bathtubs of algae will fulfil one person's oxygen requirement. Thus, option C is correct.
How algae are the major source of providing oxygen in the ocean environment.As it is known that the phytoplankton including the photosynthetic algae in the ocean is capable of providing around 70 percent of total oxygen in the atmosphere.
Water and algae like if around 20 kg of the water tank with algae which can be spread approximately 8 square metres on that water tank surface area. Then this amount is enough to provide oxygen to one person.
According to the question as one standard bathtub size is 13 square feet which are around 1.208 square metre which means 8 bathtubs with water and algae is needed which will be equivalent to the oxygen needed of a person.
Hence, 8 bathtubs of algae are enough to fulfil the oxygen demand of one person.
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Lows or low-pressure areas bring fair weather. Highs or high-pressure areas bring
wet weather, high humidity, or both.
True
False
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Answer:
The answer is false have a great day! :D
Low- or low-pressure areas bring fair weather; high- or high-pressure areas bring wet weather, high humidity, or both, and this is a false statement. The low-pressure area is generally unstable and causes the change in weather.
What exactly is low pressure?The low pressure area is formed when the air is lightweight; this can occur in a variety of ways, including at high temperatures, and as a result, air from higher pressure regions flows to the low pressure area, causing disturbances such as the formation of more cloudy and humid weather.
Hence, lows or low-pressure areas bring fair weather, highs or high-pressure areas bring wet weather, high humidity, or both, and this is a false statement. The low-pressure area is generally unstable and causes the change in weather.
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Examine the diagram of the nitrogen cycle.
Which option best describes what's happening in the part
labeled 3?
Ammonia, nitrates, and other compounds dissolve in
water and are carried to the oceans.
Human activities add nitrates and other compounds
to Earth's systems.
O Nitrogen is stored in the largest reservoir on Earth.
Nitrogen-fixing bacteria convert nitrogen gas into
compounds usable by plants and animals.
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The part labelled 3 shows nitrogen is stored in the largest reservoir on Earth.
What is the nitrogen cycle?The transformation and cycling of nitrogen in various forms throughout ecosystems is referred to as the nitrogen cycle, a biogeochemical process. The nitrogen cycle involves the transformation of nitrogen between various chemical forms so that it is available for use by plants and other creatures.
Nitrogen is a crucial element for the growth and development of living beings.
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HELPPPPP :p
Explain how precipitation happens. Use complete sentences and give at least two supporting details.
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Answer:
In a general aspect, humid and warm air moves to lower latitudes or in altitude, losing heat and getting colder. Its humidity condenses and causes precipitation. Depending on the air movement there are different kinds of rain.
Explanation:
At a global level, it occurs unequal warming of the atmosphere, which depends on many factors and varies with latitude. This occurs because solar radiation reaches the earth differently at different latitudes, resulting in big convective cells of atmospheric circulation: Hardley cell, Ferrel cell, and Polar cell.
A convective cell is the movement of the humid air among different latitudes. Air moves from higher latitudes to lower latitudes, getting warm, getting less dense, and ascending. As the air gets higher in altitude, it´s density and pressure decrease, so the air tends to expand with elevation in response to the reduced pressure. Gases in expansion experiment adiabatic cooling, losing caloric energy as their molecules move getting farther away from each other. As the air gets higher, it gets colder, and hence, denser. The result is that descends again. Humidity gets denser and precipitates.
• Rain is controlled by temperature on the earth´s surface, atmospheric global air circulation, the position of the mountains and oceans, closure to the oceans.
• There are different kinds of precipitations according to their origin.
i. Convective precipitation: These are the most typical ones. Air gets warmer and less dense, elevating in altitude with humidity. On the way, it starts to get colder, and the humidity condenses, resulting in precipitation. Depending o the degree of condensation, the precipitation might be in a liquid state (rain), semisolid-state (snow), or solid-state (hail).
ii. Frontal Precipitations: They occur when a polar front coming from higher latitudes collide with a warm front coming from lower latitudes, resulting in a strong rain. This is typical of grasslands or temperate forests (approximately 40 º latitude)
iii. Orographic Precipitations: They occur when humid wind ascends by a mountain range, causing its adiabatic cooling, condensing the humidity, and precipitating.
Classification is not a useful tool and is not necessary in science. Question 2 options: True False
Answers
Answer:
We did not include MTF questions with either zero or four true statements because of previous ...
Answer
it's false
Explanation:
i am a teacher and this was one of my test in collage
The feces of birds and mammals can also be used to assess ecosystem health. Research this methodology and provide two examples of animals used for these studies and the types of materials that are identified in their feces
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Answer:
Birds and leopard
Explanation:
It has been researched and discovered that the feces of birds and animals can be used to determine the state of health of an ecosystem.
For example, it has been discovered that hormones and other substances are excreted through urine and feces. And researchers have discovered from the feces of leopards, that a leopard that has cave or trees where it can hide from hunters are not likely to be stressed out like the one that does not have.
HELP ME Which of the following is expected to decrease due to climate change?
A. Freshwater
B. Flooding
C. Sea levels
D. Temperatures
Answers
The correct option from the given question is option A) Freshwater is expected to decrease due to climate change.
Explanation:
Climate change refers to the long-term changes in the average weather patterns that have come to define Earth’s local, regional, and global climates. Climate change is primarily due to the increase in atmospheric concentrations of greenhouse gases (GHGs) produced by human activities, such as burning fossil fuels and deforestation.
Climate change has numerous consequences on the planet, including rising temperatures, sea level rise, increased frequency, and severity of extreme weather events, and changes in precipitation patterns, all of which have significant impacts on human societies and ecosystems.
Among the given options, freshwater is expected to decrease due to climate change. Climate change alters precipitation patterns, resulting in more frequent and severe droughts in some regions and increased flooding in others, resulting in water shortages. Higher temperatures and evaporation rates result in drier soils, which reduces water availability. These factors can reduce the amount of freshwater available for human consumption, agriculture, and other purposes.
A. Freshwater - all others increase
James Bond is kidnapped and placed on the floor of a moving
train. He can see only the night sky through the windows.
Using the Big Dipper, he locates Polaris. Over the course of
the night he notices the altitude of Polaris is decreasing.
What direction is he being taken?
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Answer:
Down
Explanation:
Altitude refers to how high above the ground you are. If this decreases, you are going down
How can cells stop diffusion through protein channels?
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Answer:
Explanation:
Cells can stop diffusion through protein channels by gating the ion channels.
the range of the strong nuclear force is so short that only nucleons that are adjacent to each other are affected by the force. use this face to explain why in large nuclei the repulsive electromagnetic forec can overcome yhe strong attractice force and make the nucleus unstable.
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The nuclear forces do not act in the presence of a long distance between the nuclear and that is when the electromagnetic forces are able to overcome the strong attractive forces and then make the nucleus unstable.
The strong nuclear force is basically one of the four fundamental forces which are present in nature. The strong force is present between the nucleons, which are the protons as well as the neutrons which are present inside of the nucleus of a particular atom.
This force is so strong that it is able to overcome the repulsive forces which are present between the two positively charged protons and this allows protons and neutrons to stick together even in a very small space. The strong force although dies off with distance and that is when the other forces can take over.
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Calculate the equilibrium genotype frequencies from a population with allele frequencies p=.25 and q=.75
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There are 6.25% homozygous dominant people (AA), 37.5% heterozygous people (Aa), and 56.25% homozygous recessive people (aa).
How to determine equilibrium genotype frequencies?In a population with two alleles, p and q, the frequency of p and q must add up to 1, or 100%. In this case, p = 0.25 and q = 0.75.
Using the Hardy-Weinberg equation, we can calculate the expected frequencies of the three possible genotypes: AA, Aa, and aa. The equation is:
p² + 2pq + q² = 1
where p² represents the frequency of the AA genotype, 2pq represents the frequency of the Aa genotype, and q² represents the frequency of the aa genotype.
Substituting the given values of p and q:
(0.25)² + 2(0.25)(0.75) + (0.75)² = 1
0.0625 + 0.375 + 0.5625 = 1
Therefore, the expected frequencies of the three genotypes are:
AA = p² = (0.25)² = 0.0625
Aa = 2pq = 2(0.25)(0.75) = 0.375
aa = q² = (0.75)² = 0.5625
So in this population, we would expect to see 6.25% homozygous dominant individuals (AA), 37.5% heterozygous individuals (Aa), and 56.25% homozygous recessive individuals (aa).
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11. A person who has rickets might need
more foods from which two groups?
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In addition to getting enough vitamin D, people with rickets may also need to take calcium and phosphorus supplements. These supplements can help to improve bone health and prevent further bone loss.
Here are some specific foods that people with rickets may want to include in their diet:
Milk
Yogurt
Cheese
Salmon
Tuna
Sardines
Eggs
Fortified orange juice
Fortified cereal
Tofu
Green leafy vegetables
Fortified bread
Fortified pasta
It is important to talk to a doctor or registered dietitian about the best way to manage rickets. They can help to create a personalized diet and supplement plan that will meet the individual's needs.
Which of these is true for a fetus by the end of the first trimester of fetal
development?
A. Its weight is half what it will be at birth.
B. Its lungs are fully developed.
O C. Its placenta has served its purpose.
.
D. Its external sex organs have formed.
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Answer:
the answer is A :)!!!!!!!!!
Differentiate between pathogenicity and hypersensitivity; Also write different methods of inoculating the plants.
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Answer:
As nouns the difference between pathogenesis and pathogenicity. is that pathogenesis is the origin and development of a disease while pathogenicity is the quality or state of being capable of causing disease.
Define bisexual flower
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Answer:
The flowers which contain both male and female reproductive organs are known as full or bi flowers. They will self-pollinate themselves. Examples: Tulip, Sunflowers and Lily
Explanation: did it awhile ago hope this helps you pass!
Answer:
Like they said, bisexual flowers hold both female and male reproductive parts of a flower meaning they can pollinate other flowers and themselves.
Explanation:
In aquatic organisms, these are the respiratory organ for the extraction of oxygen from water
and for the excretion of carbon dioxide.
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Represents exponential growth
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Answer:
The variable b represents the growth or decay factor. If b > 1 the function represents exponential growth. If 0 < b < 1 the function represents exponential decay. When given a percentage of growth or decay, determined the growth/decay factor by adding or subtracting the percent, as a decimal, from 1.
Explination "Im different"
How does single called
organisms move?
Answers
Answer:
using cilia and flagella
Explanation:
ilia and flagella can move the cell in one direction or another
What must happen before a chemical reaction can begin?
• The activation energy must be exceeded.
• The activation energy must be reached.
O The concentrations of products and reactants must be equal.
• The concentration of reactant molecules must be reduced.
Answers
Answer: The correct answer is that the activation energy must be reached.
Explanation:
In order to start a chemical reaction, energy is needed. A certain amount of energy is needed in order to get started. This energy is termed as activation energy. A reaction would not take place unless the molecules or atoms of reactants come together. This takes place only when the particles are in motion, and for motion, energy is required.
The reactants have to overcome forces, which push them away from each other, and the bonds present in the reactants are needed to get dissociated, for both these purpose energy is required. Thus, before the beginning of a chemical reaction, the activation energy must be reached.
Answer:
To clarify what the person above me is saying its
B
Explanation: