The appearance of bryophytes and eventually large forests of lycophytes in the Paleozoic era (from around 500 million years ago to 250 million years ago): (3) changed the environment in such a way that it favored seed plants from that point forward.
Bryophytes is the division of the kingdom plantae that comprises of the non-vascular land plants. These plants however do not have true leaves, stem or roots. The example of bryophytes include liverwort, mosses hornwort, etc.
Seed plants are the type of plants that produce the seed. These are also called the phanerogams. Seed plants can be of following two types: Gymnosperms and Angiosperms.
The question is incomplete, the complete question is:
The appearance of bryophytes and eventually large forests of lycophytes in the Paleozoic era (from around 500 million years ago to 250 million years ago):
allowed for the evolution of the first aerobic animals.led to a period of global warming and more humid conditions.changed the environment in such a way that it favored seed plants from that point forward. was the first time that oxygen was produced by biological organisms and released in the environment.To know more about seed plants, here
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Draw the nucleus and
label the following parts:
the nuclear membrane,
nucleolus, and chromatin.
Answer:
Diagram of a nucleus with the following structures:
Nuclear membrane
Nucleolus
Chromatin
Does anyone know what kind of cell this is
Answer:
Animal cell
Explanation:
suppose a cell wishes to make a protean that has 100 amino acids. how many water molecules will be created in the making if this small protein
99 water molecules will be created in the making of a small protein in a cell.
A carboxyl group, which contains carbon, and an amino group, which contains nitrogen, are both found in amino acids. Peptide bonds are created between the carboxyl and amino groups of amino acids to create proteins.
Because the final, 100th amino acid won't bind the next (101st) amino acid, a protein comprised of 100 amino acids has 99 peptide bonds. One oxygen atom and two hydrogen atoms are extracted for each peptide link that is formed. So, for each peptide link, one water molecule is produced. Therefore, Ninety-nine water molecules are produced if there are 99 peptide bonds.
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If a person’s sleep cycle is not properly maintained, what could happen as a result?
Check all of the boxes that apply.
(A person can become overly tired. ---> CORRECT
(A person can develop hyperthermia.
(A person can get sick. ----> CORRECT
(A person can get diabetes.
I already know the answer so here you go for those who don't.
Answer: (A) is correct and (C) is correct
Explanation: Oh thanks for this explanation <3 :)
what is GLUCOSE used for FULL EXPLANATION
Answer:
Glucose is sugar in simple words. In other words, glucose is simple sugar that is important energy source for living organisms and is a component of a lot of carbohydrates.
Explanation:
What are two ways agricultural revolution had an impact on the environment
Why is it a good idea to read product reviews before purchasing products? A. Because special offers usually appear in reviews B. Because reviews tell you how to make the product C. Because experts are able to judge the product's quality D. Because other consumers will not read the reviews
Answer: c. experts are able to judge the quality of a product.
Explanation:
The word deoxyribonucleic can be broken down into the parts:
De
Oxy
Ribo
Nucleic
Why can there only be “so many links” in a food web?
Answer: This balance helps the ecosystem maintain and recycle biomass. Every link in a food web is connected to at least two others. The biomass of an ecosystem depends on how balanced and connected its food web is.
Explanation:
Why did the great taxonomist C. Linnaeus include humans in the order of primates?
Answer:
Humans can move on their own and are placed in the animal kingdom. Further, humans belong to the animal phylum known as chordates because we have a backbone. The human animal has hair and milk glands, so we are placed in the class of mammals. Within the mammal class, humans are placed in the primate order.
How does an illusion of control contribute to perceiving an illusory correlation?
An illusion of control contribute to perceiving an illusory correlation because it shows us the likelihood to find correlation where no other exists.
What causes illusory correlation?When two different variables are linked together, an erroneous correlation is produced, which causes the frequency of their co-occurrence to be overestimated. Because of our skewed perspective of the variables and a lack of information, the relationship between the two variables is illusory and not actual.
Note that Illusory correlation happens when we think two variables are linked to one another when they are actually not.
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explain how a change in an abiotic or biotic factor might affect a community
Biotic factors affect communities because they comprise animals and plants and microbes which are a necessary part of our environment whereas abiotic factors affect the ability to survival and reproduction of an organism.
How does abiotic or biotic factors affect the environment?Biotic factors such as the presence of autotrophs or self-nourishing organisms such as plants, and the diversity of consumers also affect an entire ecosystem. Abiotic factors affect the capacity of organisms to survive and reproduce. Abiotic limiting factors limit the growth of populations. The abundance and distribution of organisms in an ecosystem are affected by biotic factors, which involve living organisms. the appearance of new predators: in balanced ecosystems, predators and prey have developed together. the arrival of a new predator will disrupt the numbers of prey and other organisms. Biotic factors that affect communities; moisture levels: animals and plants are adapted to growing at the moisture levels available; soil pH and mineral.
so we can conclude that biotic factors comprise of living organisms that affect a community's availability of organisms for food whereas abiotic factors are needed by the organisms for growth.
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Brittany misses school one day because she is sick and needs to go to the doctor. She tells the doctor her symptoms and the doctor concludes that she has a common cold. Which of the following answer
choices best describes the common cold?
A. It multiplies with a host cell, and cannot be treated with antibiotics.
B. It multiplies without a host cell, and cannot be treated with antibiotics.
C. It multiplies with a host cell, and can be treated with antibiotics.
D. It multiplies without a host cell, and can be treated with antibiotics.
Answer:
A. It multiplies with a host cell, and cannot be treated with antibiotics.
Explanation:
Viruses are surrounded by a protective protein coating; they don't have cell walls that can be attacked by antibiotics like bacteria does. It is because of this that antibiotics don't work on viruses.
Flu viruses and many cold viruses also have a viral envelope, meaning the capsid is covered by two layers of lipids similar to the cell membranes found on organisms. Viruses can't multiply on their own — they must infect the cells of a living creature.
5. the fast-food smoothie consists primarily of added sugars, resulting in a product with less volume than the homemade fruit smoothie. approximately how much more volume is in the homemade smoothie than in the fast-food smoothie? (hint: use grams per serving to determine this answer.)
From the Intake Spreadsheet report Day 2, 1 serving of this recipe exists 747 grams; from the Intake Spreadsheet report Day 1, 1 serving of the fast food smoothie contains 428 grams. 747 divided by 428 = 1.75 times the volume.
Is fast-food smoothie are actually healthy?Smoothies frequently contain a lot of fiber due to their high fruit and vegetable content. This can assist in filling the gap between your current consumption of fiber and the quantity suggested by the USDA, lowering your possibility of formulating chronic diseases and enhancing your general health.
This is due to the high levels of sugar, salt, saturated fat, trans fats, processed components, and calories in the majority of fast food. Additionally, it typically has few or no antioxidants, fiber, or other nutrients.
What are the disadvantages of smoothies?Overconsumption is a risk at all times. We must exercise portion control.Limit the amount of fiber you give. Although fiber is necessary for our bodies, it might be somewhat ground up during the blending process.Not as long as entire foods in satisfying us.Premade foods are frequently loaded with sugar.One serving of this recipe weighs 747 grams according to the Intake Spreadsheet report for Day 2, whereas one serving of the fast-food smoothie weighs 428 grams. The volume is 1.75 times what 747 divided by 428 equals.
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the best statement that describes breathing
Answer: Breathing
Explanation: The process of inhaling air into the lungs, absorbing oxygen through alveoli which then moves into the blood in the capillaries. Carbon dioxide moves from the blood in the capillaries, to the alveoli where it is then expelled as a gas from the lungs, and exhaled.
What reproductive mechanism creates a haploid cell?
a. completely by mitosis
b. completely by meiosis
c. initially by mitosis and then by meiosis
d. initially by meiosis and then by mitosis
Answer: your answer is b!
Explanation:
Point B weighs three times as much as point C, and point A weighs twice as much as point C Point A weighs three times as much as point B.
The coordinates of their weighted average is (-1, -2).
What is weighted average?In Mathematics, weighted average can be defined as a product of a data point's weight and the sum of all the data points in a data set, divided by the sum of each weights.
By applying weighted average, the average of the points on the x-coordinates is given by:
x = (3 × (-4) + 2 + 5)/5
x = -1.
By applying weighted average, the average of the points on the y-coordinates is given by:
y = (3 × (-4) + 0 + 2)/5
y = -2.
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Complete Question:
Point A weighs three times as much as point B. Find the coordinates of their weighted average.
Enter your answer as (X, Y) (e.g. (1.5,-6))
While _______ decisions will generally need to be processed via the ______ system in our brains in order for us to reach a good decision, with ______ decisions, heuristics can allow decision makers to switch to the quick, _____ system.
While Non-programmed decisions will generally need to be processed via the reflective system in our brains in order for us to reach a good decision, with programmed decisions, heuristics can allow decision makers to switch to the quick, reactive system.
What are programmed and non-programmed decisions ?
Programmed decisions are those decisions that occur more frequently and are quickly executed, almost instinctly, without needing much of a thought process, by what we call the reactive system; they are repeated over time. while non-programmed decisions are those that present unusual or new situations and require a deeper reflection and understanding of the issue. Those are processed via the reflective system in the brain; they hardly re-occur and mostly spontaneous.
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The appearence resulting from a given gene combination is reffered to as the
Answer:
phenotype
Explanation:
what are similaites between a habitat and a niche?
Answer:
Habitat" is where something lives. "Niche" implies a more transactional analysis of its energy and informational interactions there. "Niche" is used both in the ecological and the cell biological literature (e.g. the niche for stem cells in the adult mammalian brain). For example: A fox's habitat may be a certain kind of forest. It's niche there might involve eating rodents, digging out a den in soft earth among the roots of tall trees, and blending in with the surroundings. "Elements" of the "niche" might be found elsewhere allowing the fox to live in a different "habitat"..
By : David Thaler
Imagine that you have set up a genetic screen to identify e. Coli mutants that cannot metabolize the amino acid tryptophan for energy. Beginning with a master plate containing many colonies, you prepare replica plates on medium with glucose or tryptophan as the only energy source. You would look for colonies that _____.
Replica plates on medium that only contain glucose or tryptophan as a fuel source. You would search for colonies that can only develop on glucose-containing plates.
How do RNA hairpin twists and the end of transcription in E. coli connect to one another?Complementary base pairing produces the twists that divide the RNA transcript from the transcription bubble. The highest frequency of GbM is found in "housekeeping" genes, while the lowest frequency is found in genes with the most varied expression.
The hairpin loop that forms on the mRNA strand during transcription divides the DNA template strand from the RNA polymerase. The mechanism is known as rho-independent or intrinsic termination, and the sequences involved are known as terminator sequences.
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Mass Volume and density science
Mass is the weight of an object volume is the size and density is the mass divided by the volume.
Density provides a convenient means of determining the mass of an object from its volume. Mass equals volume times density M = Vd and volume equals mass divided by density V = M/d. Mass is a physical quantity that indicates the amount of matter in the body of an object.
Volume is a measure of the amount of three-dimensional space occupied by an object. Mass is a physical value. Volume is a geometric value. We can say that the volume of an object is directly proportional to its mass. As the volume increases the object's mass increases in direct proportion. The slope of the graph corresponds to the density of the material.
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Waste product that forms when muscles
lack oxygen needed for metabolism.
Write a short paragraph or create a Venn Diagram describing how the modern carbon cycle compares to the pre-industrial carbon cycle:
When fossil fuels like coal and oil are burned, a greater amount of the carbon cycle is released into the atmosphere. As we burn trees to clear forests, more carbon is released into the sky.
What is the carbon cycle?Nature uses the carbon cycle to recycle the carbonyl group that continually flow from the air into Earth's living organisms and out again. Carbon is primarily stored in sedimentary deposits, with the remainder amounts being stored inside the ocean, air, and living things.
Why is the carbon cycle important?Because nature tends to keep carbon levels in balance, the carbon content that is naturally released from reservoirs equals the amount that's also naturally absorbed by reservoirs. By maintaining that biogeochemical cycles, the earth can support life indefinitely.
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Explain two (2) or more human activities that change the carbon cycle & HOW they affect this cycle.
Human activities that change the carbon cycle are Burning of fossil fuel ,carbon sequestration and deforestation .
When coal is burned, carbon is set free into the atmosphere at a faster rate than it is removed. Thus, concentration of carbon dioxide in the atmosphere increases which affect the carbon cycle .
Storing of carbon dioxide by plants is called carbon sequestration. Agricultural and forestry methods can influence how much carbon dioxide is removed from the atmosphere and stored by the plants.
Deforestation or large-scale removal of trees from forests by human results in increased levels of carbon dioxide in the atmosphere thus affecting carbon cycle.
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Match the term with its description.
Acid
Base
pH
Litmus paper
[Choose]
[Choose]
[Choose ]
[Choose ]
The terms given are match of the followings such as acid is matched with option C, base is match of option D, pH is match of option A and litmus paper is match of option B.
Briefing :Acid is a compound that increases hydroxide ions (OH−) when it is dissolved in a solution.
Base is a compound that increases hydrogen ions (H+) when it is dissolved in a solution.
pH is a value from 0 to 14 that is used to specify how acidic or basic a compound is when it is dissolved in water.
Litmus paper is used to measure the pH of substances by determining their hydrogen ion concentration.
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I understand the question you are looking for :
Match the term with its description.
Acid
Base
pH
Litmus paper
Definition
A) A value from 0 to 14 that is used to specify how acidic or basic a compound is when it is dissolved in water
B) Used to measure the pH of substances by determining their hydrogen ion concentration
C) A compound that increases hydroxide ions (OH−) when it is dissolved in a solution
D) A compound that increases hydrogen ions (H+) when it is dissolved in a solution
A researcher grew a plant in an illuminated chamber with 18o-radiolabeled co2. After allowing time for photosynthesis, where will the radiolabeled 18o be found?.
A researcher grew a plant in an illuminated chamber with ¹⁸O- radiolabeled CO₂. After allowing time for photosynthesis the ¹⁸O-radiolabeled will be found in the plants in the form of C₆H₁₂O₆.
In a lit environment with ¹⁸O--radiolabeled CO₂, a researcher cultivated a plant. The ¹⁸O--radiolabeled will be detected in the plant's C₆H₁₂O₆ when photosynthesis has had time to complete. With the aid of a green pigment called chlorophyll, plants manufacture their food through a process known as photosynthesis in which they use water, carbon dioxide, and sunlight to do it. Any oxygen isotope can be used for photosynthesis. However, the amount of food produced will be roughly the same regardless of which isotope is used.
Following the completion of the photosynthetic process, the oxygen isotope will be incorporated into the soil of the plants. The oxygen in the plant is made up of C₆H₁₂O₆, which will then be further broken down into O₂ and H₂O. When photosynthesis is complete, the final products of H₂O and O₂ will be discharged into the atmosphere.
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If these three genes were all assorting independently, how many genotypic and phenotypic classes would result in the offspring, and in what proportion, assuming simple dominance and recessiveness in each gene pair?.
8 genotypic and phenotypic classes would result in the offspring, and in 1:1:1:1:1:1:1:1 proportion, assuming simple dominance and recessiveness in each gene pair.
What are phenotypic and genotypic classes?Phenotypes contain observable attributes that can be evaluated in a laboratory, such as hormone levels or the number of blood cells. Phenotypes are the collection of observable traits.Height and wing length are two examples of phenotypes.The individual's genotype is their genetic makeup. Genes plus development make up phenotype (in a given environment).Hair color is an example of a genotype. Height. the dimensions of your shoes.The ratios of observable traits are called phenotypic ratios. The genotypic ratios, which are ratios of gene combinations in the progeny, are sometimes difficult to discern from the phenotypes.To learn more about phenotypic ratios, refer
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Salivary amylase is an enzyme found in the mouth. It breaks down starch into sugars. Which of these best explains why salivary amylase does not break down proteins?.
The best option that explains that why salivary amylase does not break down proteins is that proteins do not have the right substrate for the enzymes.
In the field of biology, we can describe enzymes as biological catalysts that are used to speed up a reaction. Each enzyme is specific for a reaction because the active site of an enzyme is specific for a particular reactant.
As salivary amylase is an enzyme that is specific for breaking down starch because its active site is specific for the starch reactants, hence the amylase enzyme will not work for proteins. The protein reactants will not fit into the active site of the salivary amylase enzyme.
Although a part of your question is missing, you might be referring to this question:
Salivary amylase is an enzyme found in the mouth. It breaks down starch into sugars. Which of these best explains why salivary amylase does not break down proteins?
a) The enzyme is the wrong substrate for proteins
b) proteins do not have the right substrate for the enzymes.
c) Proteins do not have the proper active site for the enzyme to work on them.
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Why do ALL living things go through cellular respiration?
Answer: D
Explanation: it provides cells with the energy they need to function. If living things could not get the energy they need out of food, it would be absolutely worthless. All living things would eventually die, no matter the quality and amount of food