This Portuguese explorer discovered Brazil.
Columbus
Dias
da Gama
Cabral
Answers
Answer:
Pedro Alvares Cabral
Explanation:
Portuguese explorer Pedro Alvares Cabral claimed Brazil for Portugal, arguing that the territory fell into the Portuguese sphere of exploration as defined by the 1494 Treaty of Tordesillas.
Related Questions
Kelp play a substantial role in building the structure for kelp forests impacting species richness. Which statement best explains the role of kelp forests in maintaining the diversity of the ecosystems? (3 points) Kelp forest act as ecosystem engineers. Kelp act as an invasive species. Without the otters to eat the kelp the feeding relationship would collapse. With the presence of consumers, kelp is an invasive species.
Answers
The statement that best explains the role of kelp forests in maintaining the diversity of the ecosystems is A. Kelp forests act as ecosystem engineers, this is
What are kelp forests?Kelp forests are found in shallow, cool waters and provide shelter, food, and nutrients for many animals such as sea urchins, sea stars, fish, and many other species. Kelp forests also provide a habitat for other important marine species like whales, seals, sea lions, and otters.
Kelp forests are known as the foundation species and the most important ecosystem in the ocean. They play a crucial role in maintaining the ecosystem balance. These forests have a considerable role in building the structure of the marine ecosystem and in maintaining species diversity. The kelp forests provide a habitat for a diverse range of species, which increases species diversity.
As a result, these species play an important role in maintaining the balance of the ecosystem. Thus, kelp forests act as ecosystem engineers (option A).
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Pls pls help pls pls help
Johns is above 30 and his sister who is under 15. John uses men’s testosterone tablets to increase his masculinity but found out that his sister’s been accidentally using his tablets for more than weeks. What are the changes caused to his sister. What happens if a woman takes in the testosterone made for men. (It’s not an ftm situation)
Answers
It is not recommended for women to take testosterone supplements made for men, as it can lead to adverse effects. Testosterone is a hormone primarily found in males and is responsible for the development of male characteristics.
What would happen if a woman takes testosterone made for men?Testosterone is responsible for increased muscle mass, body hair growth, and deepening of the voice in males. In females, testosterone is present in smaller amounts and is responsible for maintaining bone density, and muscle mass.
If John's sister has been accidentally taking his men's testosterone tablets for more than a few weeks, it could lead to several changes in her body, such as:
Development of masculine traits: Testosterone can cause the growth of facial and body hair in women, along with deepening of the voice.Irregular periods: Testosterone can interfere with the menstrual cycle in women, leading to irregular periods or even the cessation of menstruation.Acne: Testosterone can cause the sebaceous glands in the skin to produce more oil, leading to acne breakouts.Mood changes: Testosterone can cause mood changes, including irritability and depression.To find out more about testosterone, visit:
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Vesícula e vacúolo são a mesma coisa ?
Answers
Answer:
Vesículas e vacúolos são sacos ligados à membrana que funcionam no armazenamento e transporte. Os vacúolos são um pouco maiores do que as vesículas, e a membrana de um vacúolo não se funde com as membranas de outros componentes celulares. As vesículas podem se fundir com outras membranas dentro do sistema celular
i dont speak english
4
12.5 points
Using coal for energy is damaging to the environment because
Sev3b
coal mining requires digging deep into Earth's crust which causes fracking
leaks during mining can cause spills that pollute the ocean
O
many coal piants have had accidents that released radiation into the air
burning of coal produces air pollution and the greenhouse gas CO2
Answers
Using coal for energy is damaging to the environment because D. burning of coal produces air pollution and the greenhouse gas CO2
How is coal for energy harmful?
The most significant, long-term global impact of coal is climate change. Chemically, coal is mostly made up of carbon, which when burned produces carbon dioxide, a gas that traps heat.
The blanket-like effect of carbon dioxide, which is released into the atmosphere, causes the earth to warm more than usual, hence, this is the danger to the environment.
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QUESTION 1 Exercise 11.10. Butterflies. Alice, Bob, and Charlotte are looking for butterflies. They look in three separate parts of a field, so that their probabilities of success do not affect each other. • Alice finds 1 butterfly with probability 17%, and otherwise does not find one • Bob finds 1 butterfly with probability 25%, and otherwise does not find one • Charlotte finds 1 butterfly with probability 45%, and otherwise does not find one Let X be the number of butterflies that they find altogether. Write X as the sum of three indicator random variables, X1, X2, X3 that indicate whether Alice, Bob, Charlotte (respectively) found a butterfly. Then X= X1+X2 +X3. Find the expected value of X by finding the expected value of the sum of the indicator random variables. Your answer will have two decimal places. **This is a straight forward expected value of a sum of random variables, nothing fancy here! QUESTION 2 Exercise 11.16. Flipping coins. Flip a coin until the second head comes up. Let X be the number of flips needed to get the second head. What is the E(X). The first step is to find the expected value of getting the first head. Is this like Example 11.10, sampling without replacement, OR like Example 11.11, sampling with replacement? O A. Example 11.10, sampling without replacement O B. Example 11.11, sampling with replacement QUESTION 3 Exercise 11.16. Flipping coins. Flip a coin until the second head comes up. Let X be the number of flips needed to get the second head. What is the E(X). The first step is to find the expected value of getting the first head. What is the expected value of getting the first head? This will be an integer answer. QUESTION 4 Exercise 11.16. Flipping coins. Flip a coin until the second head comes up. Let X be the number of flips needed to get the second head. What is the E(X). The next step is to find the expected value of getting the second head. Because this is identical to finding the expected number of rolls for the first head (independent events), we just multiply the first head's expected value by 2. This will be an integer answer. QUESTION 5 Exercise 11.17 (a). Waiting for favorite song. Michael puts his iTunes on shuffle mode where songs are not allowed to be replayed. He has 2,781 songs saved on iTunes, and exactly one of these is his favorite. How many songs is he expected to have to listen to until his very favorite song comes up? Is this like Example 11.10, sampling without replacement, OR like Example 11.11, sampling with replacement? A. Example 11.11, sampling with replacement B. Example 11.10, sampling without replacement
Answers
In Exercise 11.10, the expected value of the number of butterflies found by Alice, Bob, and Charlotte is obtained by finding the expected value of the sum of three indicator random variables.
In Exercise 11.16, the expected value of the number of flips needed to get the second head in a coin flipping experiment is determined. These exercises involve different scenarios of sampling with and without replacement.
In Exercise 11.10, the expected value of X, the total number of butterflies found, is found by calculating the expected value of each indicator random variable (X1, X2, X3) representing whether Alice, Bob, and Charlotte found a butterfly, respectively.
The expected value of each indicator variable can be obtained by multiplying the probability of success (finding a butterfly) by 1 and the probability of failure (not finding a butterfly) by 0. Then, the expected value of X is calculated as the sum of the expected values of the indicator variables.
In Exercise 11.16, the expected value of X, the number of flips needed to get the second head, is determined. To find this value, we first need to find the expected value of getting the first head. This scenario is similar to Example 11.11, which involves sampling with replacement.
Each coin flip is an independent event, and the probability of getting a head is constant at 0.5.
Therefore, the expected value of getting the first head is 1/p, where p is the probability of success (0.5 in this case).
In Exercise 11.17 (a), the scenario of waiting for a favorite song in Michael's iTunes playlist involves sampling without replacement. Each song played is not replayed, and there is only one favorite song among the total number of songs.
Therefore, this scenario is similar to Example 11.10, sampling without replacement.
To find the expected number of songs Michael needs to listen to until his favorite song comes up, the formula for sampling without replacement is used, which is the reciprocal of the probability of selecting the favorite song at each step.
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describe the different forms of fermentation. write the equations summarizing the overall processes of aerobic cellular respiratoin
Answers
Fermentation is a process that occurs in the absence of oxygen and produces energy in the form of ATP, while aerobic cellular respiration occurs in the presence of oxygen and is a more efficient way of producing ATP.
Fermentation is a metabolic process that allows cells to produce energy in the absence of oxygen. There are two main types of fermentation: alcoholic fermentation and lactic acid fermentation.
Alcoholic fermentation is used by yeast and some bacteria to produce ethanol and carbon dioxide. The equation for alcoholic fermentation is:
Glucose → 2 ethanol + 2 carbon dioxide + 2 ATP
Lactic acid fermentation is used by some bacteria and muscle cells to produce lactic acid. The equation for lactic acid fermentation is:
Glucose → 2 lactate + 2 ATP
On the other hand, aerobic cellular respiration is a process that occurs in the presence of oxygen and is the main way that cells produce ATP. The equation for aerobic cellular respiration is:
Glucose + 6 oxygen → 6 carbon dioxide + 6 water + 36-38 ATP
In this process, glucose is broken down into carbon dioxide and water, releasing energy that is used to produce ATP. Aerobic cellular respiration is a much more efficient way of producing ATP compared to fermentation, as it generates a much larger amount of ATP per glucose molecule.
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What do these fossilized forests tell scientists?
Answers
Answer:D this part of Arizonan use to be much wetter
I took the test and got it right
Answer:is D
Explanation:
foods can spoil when bacteria and molds grow in them. For thousands of years, people have preserved foods by adding salt
Answers
Answer:
true
Explanation:
Rock Salt Kosher Salt.
what type of spider is this and how deadly is it 1/10?
Answers
In my opinion that would be a wolf spider. I will check online to see for you :)
Wolf spiders deadly:3/10
Cant hurt humans
Causes rash or itching
State True or False - “During meiosis, homologous pairs separate and each gamete receives one member of each pair.”
Answers
Answer:
True i believe, not sure though!!!
Explanation:
Answer:
true
Explanation:
I really don't now but I hope it's right
Which of the following was one of the first actions to negatively impact the environment?
a)farming
b)hunting
c)fishing
d)gathering
Answers
Which types of organisms perform both photosynthesis and cellular respiration?
Answers
Answer:
The organisms that undergo both photosynthesis and cellular respiration are plant cells and some bacteria and algae.
Explanation:
Answer:
plant cells and some bacteria and algae.
Explanation:
Hope this helped! <3
The answer is
1.) nucleus
2.)two
the answer is not cell for mitosis
Answers
Answer:
but what is the question?
How fast an object is moving
Answers
What phase of mitosis is pictured below?
Answers
Answer:
Its a Anaphase
because the chromatids of each chromosomes have separated and are moving towards the poles
When you increase the resting potential of a neuron.
Answers
Answer:
when u increase the resting potential of a neuron more ions move through leak channels (membrane channels that stay open)
Explanation:
two identical aquariums were next to an open window. one aquarium had a plastic cover
Answers
Answer:
is that the whole question?
Explanation:
Which word best describes the author's tone?
O A. joyful
O B. adventurous
O C. humorous
0 D. quiet
Answers
Answer:
either joyful or quiet
Explanation:
I'm sorry for this vague answer! But I think both work depending on the situation. Do you have a paragraph or something that goes along with this question?
what surfaces or objects on earth would reflect infrared light well?
Answers
Answer:
Infrared, sometimes called infrared light, is electromagnetic radiation with wavelengths longer than those of visible light. It is therefore invisible to the human eye.
Aside from water vapor, bodies of water on the surface of the Earth also absorb IR wavelengths well. Glass, wood, brick, stone, asphalt and paper all absorb IR radiation. While regular silver-backed mirrors reflect visible light waves, allowing you to see your reflection, they absorb infrared radiation.
1. Bacteria. Two bacteria were placed in a dish. The number of bacteria quadruples every hour. There are now 131,072 bacteria in the dish. How many hours have passed since the original two bacteria we
Answers
To determine the number of hours that have passed since the original two bacteria were placed in the dish, we can use the fact that the number of bacteria quadruples every hour.
Starting with two bacteria, we can observe the progression:
Hour 1: 2 bacteria
Hour 2: 2 x 4 = 8 bacteria
Hour 3: 8 x 4 = 32 bacteria
Hour 4: 32 x 4 = 128 bacteria
Hour 5: 128 x 4 = 512 bacteria
Hour 6: 512 x 4 = 2048 bacteria
Hour 7: 2048 x 4 = 8192 bacteria
Hour 8: 8192 x 4 = 32768 bacteria
Hour 9: 32768 x 4 = 131072 bacteria
Therefore, it took 9 hours for the number of bacteria to reach 131,072.
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Describe the first (pioneer species) seral stage of primary succession:
Answers
The first seral stage of primary succession is characterized by the presence of Pioneer species. These are typically hardy and adaptable organisms that are able to establish themselves in areas that have been completely cleared of vegetation, such as after a volcanic eruption or a glacier retreat.
Pioneer species are usually small and have short life cycles, and are able to thrive in harsh environmental conditions that would be too extreme for other plants. Examples of pioneer species include lichens and mosses, which can grow on bare rock and soil and help to break down the surface and create soil for other plants to grow in. As the pioneer species begin to colonize the area, they start to create conditions that are more favorable for the establishment of other plant species, and the process of succession continues with the development of new communities of plants and animals over time.
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animals that can produce exceptionally concentrated urine should be expected to have nephrons with longer ___.
Answers
Animals that can produce exceptionally concentrated urine should be expected to have nephrons with longer loops of Henle.
The loop of Henle is a crucial part of the nephron, which is the functional unit of the kidney responsible for filtering and regulating the composition of urine. The loop of Henle plays a vital role in establishing and maintaining concentration gradients in the kidney. It consists of a descending limb and an ascending limb.
The length of the loop of Henle determines the extent of water reabsorption and concentration of urine. Animals with longer loops of Henle have a greater ability to reabsorb water from the filtrate, resulting in the production of concentrated urine. This adaptation allows them to conserve water in their bodies, which is particularly important in arid environments or for species with limited access to water.
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Which of the following is the correct sequence for the pollen tube to eventually reach the egg in a flowering plant?
a. stigma, ovary, ovule, style
b. style, stigma, ovary, ovule
c. stigma, style, ovary, ovule
d. ovule, ovary, style, stigma
Answers
Answer:
b
Explanation:
.......................
Answer:
The pollen tube eventually reaches the egg in a flowering plant by passing through the stigma, style, ovary, and ovule.
Explanation:
Hope this helps!
Do you think making energy conservation
a social competition was successful in
motivations people to reduce how much
energy they were using?
Why or why not?
Answers
If the energy conservation is made a matter of social competition, it would make more people to be aware of the issues that surround energy conservation.
What is energy conservation?We know that energy conservation is a topic that has become a very hot issue and a hot discourse among several energy stake holders in the society. It is important that energy should be conserved because of the fact that the generation of energy requires a lot input of natural resources.
It has become much more important that the conversation about energy conservation should be made a subject that would come into discussion in the public domain. This is because, the discussion would be able to reengineer the way that people approach the matter of energy.
The discussion on the matter of energy is aimed to sensitize the generality of the population regarding the importance of energy and its impact on the society.
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What is the result when a diploid cell undergoes meiosis?
Answers
The result when a diploid cell undergoes meiosis is four haploid cells with half the number of chromosomes as the original diploid cell.
Meiosis is a cell division process in which a diploid cell produces four haploid cells. Each haploid cell contains half the number of chromosomes as the original diploid cell.The diploid cell divides into two cells in the first stage of meiosis, called meiosis I. Each of these cells has half the number of chromosomes as the original cell. These cells then divide again in meiosis II, producing four haploid cells with half the number of chromosomes as the original diploid cell.In summary, meiosis reduces the number of chromosomes by half, resulting in four haploid cells.To learn more about meiosis Please visit:
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Tanya is training a turtle for a turtle race. For every 1/6 of an hour that the turtle is crawling he can travel 1/24 of a mile. At what unit rate is the turtle crawling.
Answers
The rate at which Tanya's turtle travels is 0.25mi/hr
This question is from a topic in mathematics called Rate.
RateThis is a ratio in which different terms in different units are compared against each other.
In this question, for every 1/6 of an hour, the turtle is crawling 1/24 of mile.
Data given;
1/24 miles in 1/6 hourLet's express this mathematically
\(1/24 mi = 1/6 hr\\x mi = 1 hr\\x = (\frac{1}{24})/(\frac{1}{6})\\x = 0.25mi\)
What this calculation shows is that the turtle travels at 0.25mi/hr
The rate at which the turtle travels is 0.25 miles in an hour or 0.25mi/hr
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which would most likely result in an increase in generic variation in a population?
a) an increase in predators and a decrease in food
b) an increase in predators and an increase in food
c) a decrease in predators and an increase in food
d) a decrease in predators and a decrease in food
Answers
Answer:
the smaller population would grow
Explanation:
One of the first explanations of evolution was put forth by a French biologist, Jean-Baptiste
Lamarck. He theorized that animals, in responding to different environments, adopted new
habits. Their new habits caused them to use some organs more and some organs less, which
resulted in the strengthening of the former and the weakening of the latter. New characters
thus acquired by organisms over the course of their lives were passed on to the next
generation. His theory proposed this process of use and disuse, repeated over many
generations, was how species evolved.
He was wrong. Why?
Answers
Answer:
Traits acquired during an organism's lifetime cannot be passed
Explanation:
The law of use and disuse of organs as postulated by Jean Lamarck was wrong due to the fact that environmentally acquired characters cannot be passed to offspring.
Changes to organisms that are not the level of the gene cannot be passed to the offspring. For example, a wrestler that got big muscles due to constant work out cannot pass big muscles to his offspring. The offspring will need to work out in order to have big muscles. This is because big muscles in the wrestler is environmentally acquired.
Only changes that happen to the genome of an organism (mutation) can be passed to offspring.
History taking is key part of each initial consultation. Which of the following is NOT typically included?
How the animal is behaving
What tests are going to be carried out
What the symptoms are
How the animal is eating and drinking
What treatments they are receiving (including non-prescribed)
Answers
Answer:
what test are going to be carried out
Let p = purple flowers and p = white, and t = tall plants and t = dwarf. What would be the appearance of a plant with the genotype pptt?
Answers
The offspring with the genotype PpTt will be tall and have purple flowers.
What is genotype?Genotype is the sum total of the genes that an individual possesses.
The genotype of an individual determines the traits that the individual will possess.
The phenotype is the physical expression of the genotype.
For the given plant:
Let P = purple flowers and p = white, and T = tall plants and t = dwarf.
Assuming P is dominant over p and T is dominant over t.
The offspring with the genotype PpTt will have purple flowers and Tall.
In conclusion, the phenotype is a physical expression of the genotype.
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