Answer:
Name the stage of Breathing represented by the apparatus in Diagram 1 and 2
what is it about science, as a way knowing, that makes it self-correcting?
Answer:
La ciencia es un conjunto de conocimientos obtenidos mediante la observación y el razonamiento, y de los que se deducen principios y leyes generales.
La ciencia explica la realidad mediante leyes, éstas son las relaciones constantes y necesarias entre los hechos.
Explanation:
Answer:
I think Science is remarkably self-correcting. When we publish papers in scientific journals, we organize our papers in a way that reflects the ideals laid out by Francis Bacon. We give enough of the details about our methods that someone else could repeat the study we are presenting. We present details about the analysis of our data.
I hope this help you!:)
"Pitcher plants are carnivorous." Is it true or false?
Yes, it is true that pitcher plants are carnivorous. Pitcher plants are a type of carnivorous plant that have evolved to obtain essential nutrients from insects and other small organisms.
The answer in True.
These plants typically grow in nutrient-poor soil conditions and have adapted to capture and digest insects as a way to supplement their nutrient intake.
The main feature of pitcher plants is their modified leaves, which form a pitcher-like structure. This structure is filled with a liquid that contains enzymes and other substances that can break down the captured prey. The rim of the pitcher, called the peristome, is slippery, causing insects to fall into the trap. Once trapped, the insects are digested, and the nutrients are absorbed by the plant.
There are several types of pitcher plants, including the North American Sarracenia, the tropical Nepenthes, and the Cephalotus from Australia. Each species has unique adaptations and trapping mechanisms that help them capture different types of prey.
In summary, pitcher plants are indeed carnivorous, as they have adapted to obtain essential nutrients from insects and other small organisms. They do so through their unique pitcher-like structures, which are designed to trap and digest prey. This adaptation allows them to thrive in nutrient-poor soil conditions.
The answer in True.
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Based on graph 1, do you think the changes in solar intensity are a significant cause of the trend in global temperatures? Why or why not?
Answer:
Changes in solar intensity do not seem to contribute to the change in global temperatures. If they did, the temperatures would rise and fall with the Sun's energy. Instead, the global temperatures continue to rise despite the Sun's natural fluctuations.
Explanation:
Human activity is the main cause of climate change. People burn fossil fuels and convert land from forests to agriculture. Since the beginning of the Industrial Revolution, people have burned more and more fossil fuels and changed vast areas of land from forests to farmland.
No, because the increase in temperature on earth is mainly related to global warming generated by the release of greenhouse gases and the release of CO2 into the atmosphere.
Explanation:
It is by action of man not because of the solar intensity
why RNA chain is always transcribed on 3' to 5' template strand ?
Explanation:
RNA growth is always in the 5′ → 3′ direction: in other words, nucleotides are always added at a 3′ growing tip, . Because of the ANTIPARALLEL nature of the nucleotide pairing, the fact that RNA is synthesized 5′ → 3′ means that the template strand must be oriented 3′ → 5′.
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evidence that two organisms share a common ancestor?
There are several lines of evidence that can indicate two organisms share a common ancestor:
Comparative Anatomy: If two organisms have similar structures, it suggests a common ancestral origin. Homologous structures, such as the pentadactyl limb (five-fingered limb) found in mammals, reptiles, birds, and amphibians, indicate a shared ancestry despite variations in function or form.Comparative Embryology: Studying the development of embryos can reveal similarities between organisms that indicate a common ancestor. For example, vertebrate embryos exhibit similar features at early stages, such as pharyngeal pouches, suggesting a shared ancestry.Fossil Record: Fossils provide direct evidence of organisms that lived in the past and can show evolutionary connections between species. Transitional fossils, like Archaeopteryx, which exhibits characteristics of both reptiles and birds, demonstrate a gradual transition between different groups of organisms.Molecular Biology: DNA and protein sequence comparisons can reveal the degree of similarity between organisms. The more closely related two organisms are, the more similar their genetic sequences tend to be. Molecular phylogenetics uses this information to construct evolutionary trees and determine common ancestry.Biogeography: The geographic distribution of organisms can provide evidence of common ancestry. For example, species on isolated islands often resemble closely related species on the nearest mainland, indicating a common ancestral source population.Genetic Homologies: Shared genetic information between organisms, such as the presence of specific genes or genetic markers, can indicate a common ancestry.Vestigial Structures: Vestigial structures are remnants of organs or traits that were functional in ancestors but have lost their original purpose in descendants. Examples include the human appendix or hind limbs in some snake species. The presence of these vestigial structures suggests a shared ancestor with organisms in which these structures are still functional.By examining and analyzing these various types of evidence, scientists can build a compelling case for the shared ancestry between different organisms, highlighting the evolutionary relationships that connect them.
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Using water more efficiently _______.
a.
protects the environment
b.
causes the loss of natural pollution filters
c.
increases water contamination
d.
all of the above
Answer:
a. protects the environment.
Explanation:
Using water efficiently means using it wisely and not wasting it. When we use water more efficiently, we reduce the amount of water we consume, which helps to conserve water resources. This is important because water is a limited resource, and by using it efficiently, we can ensure enough water is available for future generations.
By using water more efficiently, we can also protect the environment. Water is essential for many ecosystems and habitats, and by conserving water, we can help maintain the balance of these ecosystems. Additionally, using water efficiently can reduce the need for energy-intensive water treatment and distribution processes, which can help reduce greenhouse gas emissions and mitigate climate change.
So, using water more efficiently helps protect the environment but also helps conserve water resources for the future.
What “ingredient” is part of photosynthesis, but not part of the chemical equation?
Answer:Carbon, hydrogen, and oxygen are the chemical ingredients necessary for photosynthesis to take place. Hydrogen and oxygen both come from the water in the hydrosphere. Carbon and oxygen come from the carbon dioxide that animals and humans breathe into the atmosphere. Although it is not a chemical ingredient, without energy from the sun, none of this process could occur. (hope it helps-
Explanation:
Patrick is a 16 year old boy whose body has stopped producing osteoclasts. What does this mean for his bones? What other parts of his body will be affected by this?
This means for his bones that his bones will become weak and brittle. Other parts of his body like the hip, wrist, and spine will be affected by this.
Osteoclasts weaken brittle bones, making them prone to breaking from even minor stresses like coughing or stooping. The most frequent locations for fractures caused by osteoclasts are the hip, wrist, or spine. Bone is a living tissue that constantly degrades and is replaced.
By increasing their resorptive activity and destroying bone to initiate normal bone repair, the cells known as osteoclasts mediate bone loss in pathologic circumstances. They develop from progenitors of the myeloid/monocyte lineage that circulate in the bloodstream after maturing in the bone marrow.
Osteoblasts create bone; osteocytes mature it, and osteoclasts degrade and reabsorb it.
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Which of the following cells will NOT go through mitosis?
Liver cell
Sperm cell
White blood cell
Brain cell
Answer:
sperm cell
Explanation:
because sperm cells are reproductive cells and so undergoes meiosis to form diploid cell
If the ecosystem is a closed system, which of these things does not change as it cycles through the ecosystem?
A. the location of matter
B. the form of matter
C. the total amount of matter
D. all of these
Answer:
c
Explanation:
it is c, the total amount of matter won't change as its closed
When using a microscope, which magnification allows you to observe the most cells?
(A) 40x magnification
(B) 400x magnification
When using a microscope, 40x magnification allows you to observe the most cells.
Because the 40x lens is of less power which shows the more number of cell colony but the detailed structure of a particular cell.
Microscope- A microscope is a device that enlarges an image of the a small object to expose details that the unassisted eye cannot perceive. The compound microscope, which employs light waves focused through lenses, is the most used type of microscope.
Magnification- Making little items appear larger gives one the ability to view microscopic organisms, for example. The capacity to tell between two items is known as resolution. Both the resolution and the magnification of light microscopy have their limitations.
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29. Brain has one son, two grandchildren, and three great-grandchildren. This is example of
O exponential growth.
Odynamic growth.
O linear growth.
Obinary growth.
This is an example of exponential growth.
Exponential growth refers to a pattern of growth where the quantity or size of something increases at an accelerating rate over time.
In the given scenario, Brain has one son, two grandchildren, and three great-grandchildren.
Each generation is producing more offspring, resulting in a rapidly increasing number of descendants.
The progression from one generation to the next demonstrates exponential growth because each subsequent generation adds more individuals than the previous one.
As the generations continue, the number of descendants grows exponentially larger.
Exponential growth can be observed in various natural and human-made systems, such as population growth, compound interest, and the spread of infectious diseases.
In this case, the number of descendants in Brain's family tree follows an exponential pattern, as each new generation multiplies the number of offspring, leading to a significant growth rate.
Therefore, the example given aligns with the concept of exponential growth.
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All of the following are examples of environmental mutagens except
x-rays.
viruses. (Correct)
pesticides.
sunlight.
All of the following are examples of environmental mutagens except : sunlight as it does not pollute the environment.
What is meant by environmental mutagens?Agents that can cause mutations in DNA and increase the frequency of mutations in a population is known as environmental mutagens. Examples of environmental mutagens are : x-rays, UV radiation, certain chemicals such as pesticides, and some naturally occurring substances like aflatoxins produced by fungi.
Mutagens are the substances that have the ability to change the genetic composition of a person / animal and these changes caused by mutagens are referred to as genetic mutations. Major target of mutagens is DNA.
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According to Newton's first law, an object in motion
will stay in motion unless:
a. A balanced force acts on it
b. An unbalanced force acts on it
c. It stops
d. It remains at rest
Science 6th grade, pls help
Unless an unbalanced force is acting on an object, Newton's first law states that it will stay at rest or move in a straight line at a constant speed.
What state does Newton's law claim an object in motion will remain in?Newton's first law states that any object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the application of an external force. Inertia is the propensity to resist changes when things are moving.
Does an object that is moving continue to do so?According to Newton's First Law of Physics, moving objects continue to move in the same direction unless they are affected by an imbalanced force. Things moving include among others, the US dollar, rates, inflation, and oil.
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How may ecological succession affect a population of red foxes compared to evolution.
Ecological succession and evolution are both processes that affect the population of red foxes in different ways. Ecological succession involves the gradual and predictable changes that occur in a community of organisms over time while evolution refers to the changes in the genetic makeup of a population over time.
Ecological succession involves the gradual and predictable changes that occur in a community of organisms over time. It is driven by both biotic and abiotic factors and is classified into two main types: primary and secondary succession. During primary succession, organisms colonize a newly formed area that lacks soil and organic matter.
Over time, these pioneer organisms create soil and organic matter, which allows for the growth of more complex plants and animals. Secondary succession occurs after a disturbance such as a fire or flood has occurred, and it involves the gradual return of a community to its original state. Ecological succession can affect the population of red foxes in several ways.
For example, as vegetation grows and changes, the availability of food and shelter for red foxes can also change. This can either increase or decrease the population of red foxes depending on the availability of food and other resources. Furthermore, as other animal populations change due to succession, this can also impact the population of red foxes through predation or competition.
Evolution, on the other hand, refers to the changes in the genetic makeup of a population over time. This occurs as a result of several mechanisms, including natural selection, genetic drift, and gene flow. Over time, these changes can lead to the formation of new species and the extinction of others.
Evolution can affect the population of red foxes in several ways. For example, if a population of red foxes undergoes genetic changes that allow them to better adapt to their environment, this can increase their survival and reproduction. Conversely, if changes in the environment reduce the survival and reproduction of red foxes, this can decrease their population.
Overall, ecological succession and evolution can both affect the population of red foxes, but in different ways. Ecological succession involves changes in the availability of food and other resources, while evolution involves changes in the genetic makeup of a population over time.
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How human activities impact negatively on biodiversity and what is done to prevent it?
Human activities have an impact on biodiversity in several ways, this can be a direct impact, such as the exploitation of a certain species until the population is not sustainable, or indirect, such as the destruction of habitat.
Some of the causes or activities that affect biodiversity are the following:
• Change in land use: ,This means that habitats are substituted with something that benefits humans and often results in pollution. Examples of this are deforestation, agriculture, and urbanization. This causes the loss of habitats. A measure used to reduce this kind of impact is to regulate the way land can be used, for example, requiring certain types of permits for construction, only allowing certain types of construction, and implementing protected areas.
,• Pollution,, which means the introduction of substances or other things that are harmful. This can be the ,pollution of air ,with greenhouse gases; ,noise and light pollution,, because interferes with the communication of the animals; and ,invasive species,, that prey on or displace local species. This is combated by making laws to reduce the emission of air pollutants and other harmful substances; as well as making design ch nges to public lighting, and controlling the introduction of species to a certain environment.
,• Overexploitation, can be made of living and non-living resources. The overexploitation of fossil fuel, for example, is related to the production of contaminants, while the overexploitation of living beings means that they are consumed faster thanrthey can recover. There are programs to change from fossil fuel to greener energies, and measures to prevent the overexploitation of living beingsbein such as thehibition of fishing during the mating season promfu than of limin,chahrl spfh atroduct
Discuss the causes and effects of veld fire and suggest practical solutions
Answer:
In explanation.
Explanation:
Causes: most veld fires are a result of human actions that emanate from the disposal of cigarettes, the burning of vegetation when preparing fields, the use of fire by hunters, smoking out bees and the making of fires by motorists along highways.
Effects: land management and sustainability posed by veld fires include property damage, reduced soil fertility, destruction of vegetation, air and water pollution, and destruction of wildlife.
Practical solutions:
1. Prepare fire breaks on their side if there is a reasonable risk of veld fires.
2. Have the necessary equipment, protective clothing, and trained personnel to extinguish these fires.
3. Avoid throwing cigarettes butts on the ground.
4. Have grass beaters handy to extinguish the fire.
5. Always have the emergency number handy to call emergency services 10177 on Telkom landlines or 112 on your cellphones.
6. Sand can be a very effective method of veld fire control since water will not be readily available.
7. Visit your nearest Basic Emergencies, Safety And Fire (Besafe) center for more information on fire safety education.
Why should we see the sticks motion well before we see its color?
Answer:
the surface of an object reflects some colors and absorbs all the others.correct me if i'm wrong :)
Histoplasmosis is a disease of
Answer:
Histoplasmosis is an infection caused by a fungus called Histoplasma. The fungus lives in the environment, particularly in soil that contains large amounts of bird or bat droppings.What are some examples of lab saftey rules. Explain why these rules are put in place for the learning environment and what would a lab class look like without any lab safety rules.
Answer:
How was the government able to make children go to residential school?
help me out bro!!! !! ! !
Complete each calculation and report the answer using the correct number of significant figures. 5.170 kg + 4.20 kg = kg 11.8713 L – 6.2 L = L (3.14 mm)(1.173 mm) = mm2
Answer:
#1. 9.37 kg
#2 5.7 L
#3 3.68 mm^2
Explanation:
We transformed E coli cells with a plasmid modified to contain a ‘virulence factor’ which would allow growth on media containing the antibiotic kanamycin (Kan). The plasmid confers constitutive resistance to ampicillin (Amp).
Assume you were given competent cells of known transformation efficiency (TE). Assume TE= 1x10[6] (note 10[6] means 10 to the power of 6). You want to have about 1000 colonies on the P-200 plate. How many nanograms of plasmid should you use in the transformation reaction? Select only one answer.
We need 1 nanogram of plasmid in the transformation reaction when the transformation efficiency is given for 1000 colonies on plate P - 200.
Given the value of transformation efficiency (TE) = \(1 * 10^6\)
Number of colonies on the plate P-200 = 1000
To calculate the amount of plasmid (in nanograms) required for transformation, we need to first calculate the number of cells required for transformation.
To get desired number of cells we multiply the transformation efficiency and number of colonies given such that:
number of cells = \(TE (1*10^6) * 1000 colonies = 1 * 10^9 cells\)
Since 1 nanogram of plasmid is equivalent to \(1 * 10^9\) cells, we can conclude that we need to use 1 nanogram of plasmid in the transformation reaction.
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What is not true about enzymes????
Answer:
Enzymes are transformed into new molecules after a reaction.
Explanation:
(GRADPOINT)
How can downwelling affect the ocean water
around the poles?
The marine life can survive in these extremely frigid climatic circumstances at the poles when the ocean's surface water gets a little bit warmer.
What are benefits of downwelling on poles?Downwelling is the process through which warm, light, dense water rises to the top and cold, heavy, and thick water sinks into the ocean floor. Downwelling causes oxygen-rich water to ascend to the surface where it is carried by the high density water that rises to the sea's surface, allowing marine life to breathe freely. Additionally, when the ocean's surface water gets a little warmer, marine life can survive in the polar regions' extremely harsh climates a little easier.
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Aquarium salt water is prepared to a salinity of 30 ppt (parts per trillion) by dissolving 3.26 kg of salt into 114 L of water. If you wanted to make 4,000 mL of salt water at the same salinity, how many grams of salt will you need?
Answer:
114 gram of salt is required.
Explanation:
Below are the following given data in the question:
Prepared salinity water = 30 ppt
Weight of salt used = 3.26 kg
The volume of water = 114 L
Below is the calculation.
4000 mL = 4000/1000 = 4L
Let the used = x kg
3.26/114 = x/4L
Now solve for the x.
x = 0.114 kg or 114 gram
Complete the following sentence.
If caregivers want to encourage infants between four and six months old to learn, they can provide _ books.
Answer:
they can provide reading or education books(numbers, colors, shapes, etc)
Explanation:
Answer: touch-and-feel
Explanation:
See E's section on crawling, standing up, working on walking, and coordinating hand and eye (subsection: eye-hand coordination):
"Textures are highly interesting to infants. By exploring different textures such as furry and soft versus slippery and cold, a baby is being stimulated and is learning about the world. Touch-and-feel books are very useful at this age [4-6 months], as are a wide variety of toys with different textures, such as plush stuffed animal toys and smooth building blocks."
what’s porosity
a) The ease with which water is able to flow from one pore to another in rock
b) A measure of the amount of ground water available in the water table
c) A measure of the amount of open space within unconsolidated sediment or rock
d) The ability of water to trickle down through soil until it reaches ground water
Answer:
C)
Explanation:
A measure of the amount of open space within unconsolidated sediment or rock.
Options for #2:
-carry
-design
-argue
-sabotage
-disprove
Scientists use labs to Design and Carry out experiments.
Answer:
1. Study
2. Design; Carry
Which statements describe secondary succession? Choose all that apply. Lesson 6.08 occurs with lichens breaking down bare rock no previous life existed previous life exists occurs with previous existing soil
Answer:
lichens breaking down bare rock
&
existing soil
Explanation:
Secondary succession can only occur with grass and this makes the difference between primary and secondary.
Lichen slowly break down rock to make soil.