In order to support the hypothesis that mutations occur in response to an environmental challenge, the experiment in question would have to show an increase in mutation rates shortly after the environmental challenge was introduced.
When we test a hypothesis, we perform an experiment and gather data over the course of the testing. In order to obtain evidence that supports a hypothesis, we have to ensure that only one variable is changing and be sure to repeat the experiment to confirm the values measured.
Taking this into account, a hypothetical result of the fluctuation test that would support the hypothesis of mutations in reaction to environmental challenges would be to measure a spike in mutation rates in the generation following an environmental challenge, and then continue to do so with future post-challenge generations.
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OMG HELP RN
The following chart below show the conductors and insulators experimented with in the circuits gizmo. The chart has been filled in incorrectly with some insulators and conductors in the wrong column.
True
False
Answer:
TRUE
Explanation:
it’s true i just finished that worksheet
Is it possible to see the different phases of mitosis in plant cells under a low power microscope? A yes, you can see the individual cells and tell the phases apart. B yes, you can see the individual cells and they are all just in the same phase. C No, you can't see enough detail. They all look like they are in interphase. D. No, there is not enough detail to see individual parts of the plant or individual cells.
It is not possible to see the different phases of mitosis in plant cells under a low-power objective microscope.
Under low-power objectives, individual plant cells can be seen as room-like compartments but the essential details of the contents of the cells cannot be seen. Thus, all the cells appear the same as if they are in an interphase phase of the cell cycle.
In order to view the different phases of mitosis in plant cells, higher magnifications such as high power would be required.
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Select all that apply: Which of the following is NOT a location for a synovial joint
A. structures of the skull
B. Ankle joints
C. Finger joints
D. Rib joints
Writing your own quiz from the information you learned in class and during your reading will help improve your study skills.
A.
True
B.
False
Capturing gas emitted from landfills results in a(n) _____________ of CO2 production.
Question 3 options:
a)
increase
b)
decrease
c)
balance
Answer:
b. decrease
Explanation:
that's only my answer but by thinking the capturing gas emitted from landfills results in decrease of CO2 production.
Why don't people's cells starve from lack of glucose while they are fasting
what is the cytoplasm job in the factory?
Answer:
factory floor!
Explanation:
function:
Contains the organelles; site of most cell activity.
How does reproduction in humans compare to reproduction and other animals such as fish, birds and reptiles?
Answer:
It compares because all of them reproduce the same way with varied offspring instead of identical.
The three most common homoglycans found in nature are cellulose, starch and __________. Group of answer choices Amylose Lactose Fructose Glycogen Sucrose
Answer:
Glycogen
Explanation:
Need questions 2-11 done pls
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In mitosis, the daughter cells have the same number of chromosomes as the parent cell, while in meiosis, the daughter cells have half the number of chromosomes as the parent.meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.A haploid cell is a germ cell or reproductive cell-like egg or sperm that has a single set of chromosomes and it is represented by n. A diploid cell is a bodily cell or somatic cell that has two sets of chromosomes( one set from the paternal line and one set from the maternal line)From a diploid germ cell 2n =24 double stranded chromosomes, meiosis will produce four gamete haploid cells n =12 single stranded chromosomes.ovumspermGenetic variation is increased by meiosis Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. filter that blocks out unwanted frequencies to a speaker or group of speakersdescribes how different genes independently separate from one another when reproductive cells develop. I d k the last one sorryhope it helps[tex] \: \: \: \: [/tex]
What is the food web for Altamaha shiner ?
Answer:
The bottom of the pyramid was fertilizer or something and the little top triangle was a silhouette of a man. Those were simple days and the food chain seemed simpler.
Explanation:
Question 6
The electrical charge of a particle called
Answer:
The electrical charge of a particle is called an electric charge.
Explanation:
Electricity always comes in units of the Coulomb, which is the unit of measurement for electric charges. One Coulomb is defined as follows: "the quantity or magnitude of electricity carried by an electron in the electrostatic field around a point on the Earth with coordinates (latitude, longitude)". We can use units like volts and amperes to communicate this kind of data now, but typically you'll see it written as Cs.
To do some simple arithmetic with these units you need to know that one Couloth will equal 93 millimeters squared per second times per second (mC/s*ms).
help now asap plssssss ols dont answer if you dont know
Answer:
telescope
Explanation:
Answer:
Optical Telescopes , Radio Telescopes , Spectroscopes , Star Charts
Explanation:
Which pair of triangles can be proven congruent by SAS?
Answer:
Explanation:
The seconded one
The second triangle can be proven congruent by SAS (side-angle-side). Therefore, option B is correct.
What is SAS property?SAS stands for "Side-Angle-Side" and it is a property of congruent triangles. This property states that if two triangles have two pairs of corresponding sides that are proportional and the included angles between those sides are congruent, then the triangles are congruent.
In other words, if two triangles have the same length of two sides and the angles formed by these sides are the same, then the triangles are congruent.
This property is one of several ways to prove that two triangles are congruent, and it is a useful tool in geometry and trigonometry. The other ways to prove the congruence of triangles are SSS (Side-Side-Side), ASA (Angle-Side-Angle), AAS (Angle-Angle-Side), and HL (Hypotenuse-Leg) properties. Hence, option B is correct.
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Protecting shoreline communities from tsunamis is a struggle, especially in less developed regions of the world. Explain why your experiment supports this statement.
Protecting shoreline communities from tsunamis is a struggle, especially in less developed regions of the world because tsunamis are unpredictable. These phenomena have a higher effect on low-income shoreline families.
Tsunamis can be defined as giant ocean waves due to earthquakes and/or volcanic activity that occur under the sea.
Tsunamis may devastate entire shoreline communities because they are unpredictable and they speed along like a jet plane.
Tsunamis mainly affect shoreline low-income families in developing countries because the houses in which these people live in developing countries are rudimentary.
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photosynthesis and cellular respiration scientific principles
Explanation:
Photosynthesis makes the glucose that is used in cellular respiration to make ATP. ... While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration.
El acero es homogénea,heterogénea,elemento,compuesto?
Answer:
El acero es una mezcla homogénea, sin embargo, está hecho de hierro y carbono. Una sustancia pura es diferente de una mezcla homogénea porque una sustancia pura tiene un solo componente.
Compare the population growth rate in industrially developed countries to that in developing countries
Answer:
The worlds developing regions will see 1.2 billion people added, a 20.7% increase; while the population of developed countries will increase a mere 3.3% adding 41 million to the current 1.3 billion people. ... There is a difference of more than ten years between the median age in developing and developed regions.
The population growth rate in industrially developed countries is much lower than that in developing countries.
The population growth rate is the number of births per 1,000 people in a population in a year. The population growth rate in industrially developed countries is typically around 1%, while the population growth rate in developing countries is typically around 2%.
There are several reasons why the population growth rate is lower in industrially developed countries. First, people in industrially developed countries tend to have fewer children. This is due to a number of factors, including the availability of birth control, the increasing participation of women in the workforce, and the rising cost of raising children.
Second, people in industrially developed countries tend to live longer. This is due to advances in medicine and healthcare. As a result, the number of people in the population who are of childbearing age is lower in industrially developed countries than in developing countries.
The lower population growth rate in industrially developed countries has a number of implications. First, it means that the population in these countries is aging. This is because the number of people who are of working age is shrinking, while the number of people who are retired is growing.
Second, the lower population growth rate means that there is less pressure on resources such as land, water, and food. This can help to reduce poverty and improve the standard of living in these countries.
However, the lower population growth rate also means that there is a smaller pool of workers to support the economy. This can lead to labor shortages and economic problems.
Overall, the lower population growth rate in industrially developed countries has both positive and negative implications. It is important to carefully consider these implications when making policy decisions.
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Can someone help cause i only have 10 mins thank you
Answer:
All cells come from pre-existing cells
Explanation:
Name at least three hormones which are used commercially and list why they are used.
Answer:
Auxins, Ethene and Cytopkinins
Explanation:
Auxins used in commercial fo Crop production.
Ethene used in commercial to fruit to ripen.
Cytokinins used in commercial to reduce yellowing in green vegetables.
Auxins are utilized in the commercial production of crops. Ethene is a commercial fruit ripening agent. Cytokinins are used commercially to stop green crops from turning yellow.
What are plant hormones?
Almost every element of plant growth and reaction to its environment is regulated by plant hormones. Numerous plant hormones play important roles in the interactions between plants and helpful microorganisms because they are active at extremely low concentrations and have precise spatial control of synthesis and response.
The "The Role of Plant Hormones in Plant-Microbe Symbioses" special issue offers fresh information on the functions of hormones produced from both the plant and the microbial partner in symbiosis establishment and communication. This includes the close symbioses that the majority of terrestrial plants have with arbuscular mycorrhizal (AM) fungi, as well as the more recently acquired nodulation—symbioses between a select group of plants in the fabid clade and nitrogen-fixing bacteria.
The articles in this special issue also look at how hormones affect how plants interact with ectomycorrhizae, endophytic bacteria, and fungi, and helpful microorganisms that stick to the surfaces of the leaves and roots. Many hormones can interact with one another in addition to acting directly to regulate the growth of these symbioses, and these intricate networks are just beginning to emerge.
Therefore, various plant hormones are used commercially.
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After following humane guidelines for stunning an
animal, the carcass is
If a brown-eyed mother and a blue-eyed father have four children, three will probably have brown eyes. What can you conclude from this? *
A. Brown eyes are a successive trait
B. Brown eyes are a submissive trait
C. Brown eyes are a recessive trait
D. Brown eyes are a dominant trait
a skateboard with unbalanced forces. A bicycle with balanced forces
Answer:
bicycle I may be wrong sorry
Animal physiology and anatomy
Describe briefly the importance of energy diet in reproduction
Answer:
Animal Physiology
Animal physiology is the study of how animals work, and investigates the biological processes that occur for animal life to exist. These processes can be studied at various levels of organization from membranes through to organelles, cells, organs, organ systems, and to the whole animal. Animal physiology examines how biological processes function, how they operate under various environmental conditions, and how these processes are regulated and integrated. The study of animal physiology is closely linked with anatomy (i.e., the relationship of function with structure) and with the basic physical and chemical laws that constrain living as well as nonliving systems. Although all animals must function within basic physical and chemical constraints, there is a diversity of mechanisms and processes by which different animals work. A comparative approach to animal physiology highlights underlying principles, and reveals diverse solutions to various environmental challenges. It can reveal similar solutions to a common problem, or modifications of a particular physiological system to function under diverse conditions. The discipline of animal physiology is diverse and here the major areas of research and investigation are outlined.
TROPICAL SOILS | Humid Tropical☆
S.W. Buol, in Reference Module in Earth Systems and Environmental Sciences, 2013
Chemical and Mineralogical Composition of Soils
Of the chemical elements essential for plant and animal physiology, only carbon, oxygen, and hydrogen, are derived directly from air and water. Nitrogen and to some extent sulfur are derived from the air but must be present as inorganic ions in the soil before they can be utilize by plants. The other essential elements are obtained from the dissolution of minerals in the soil. Essential element bearing minerals are derived from the geologic material within which the soil is formed. An inadequate supply of any essential element limits plant growth. The most frequent limitations result from insufficient plant-available nitrogen, phosphorus, potassium, calcium, or magnesium.
Practically no nitrogen is present in soil minerals. Nitrogen enters the soil as ammonium and nitrate dissolved in rainwater or via fixation from the air by nitrogen-fixing microbes in the soil. Some nitrogen-fixing microbes in the soil are symbiotic and the nitrogen they extract from the air is incorporated into their legume plant host. Other nitrogen-fixing microbes are not symbiotic, and the nitrogen they extract from the air is incorporated into their cells. Nitrogen is also present in the organic residues of dead organisms in and on the surface layers of soil. Plants do not ingest the organic forms of nitrogen but as microbes in the soil decompose organic residues and exhaust carbon dioxide to the air inorganic forms of nitrogen are released into the soil solution and become available to growing plants, leach into the groundwater during periods of excessive rainfall, or return to the air as nitrogen gas during periods when the soil is saturated with water. Plant-available nitrogen contents in soil are transient and closely related to the nitrogen content in the organic residue and the rate at which the residue is decomposing.
Phosphorus is present in only a few minerals in the soil. Apatite, a soluble calcium phosphate mineral capable of supplying plant-available phosphorus, is the most common source of phosphorus and most abundant in soil formed in limestone. Iron and aluminum phosphate minerals are extremely insoluble and do not release phosphorus rapidly enough for rapid plant growth. Soils with high iron and aluminum contents tend to absorb phosphate applied as fertilizer and decrease its availability to plants. This is a serious problem in attempts to fertilize food crops in many soils in the tropics.
Potassium is present in mica and feldspar minerals. These minerals are rather easily decomposed in the soil environment and consequently are sparse in soils formed in siliceous materials and sediments that have been repeatedly transported and deposited on the land surface.
Calcium and magnesium are most abundant in carbonate minerals associated with limestone and some carbonate rich sandstone. Carbonate minerals are also relatively unstable when subjected to weathering and therefore most abundant in soils formed directly from limestone, some sandstone, and recently deposited sediments derived from carbonate rich rock.
Eukaryotes that are not fungi, animals, or plants are classified in a "catch-all" category called ________. A. archaea B. protists C. bacteria D. seaweeds
Eukaryotes that are not fungi, animals, or plants are called protists
Protists can be described as eukaryotes that are not grouped as fungi, animals or plants. These groups of organisms are so wide that there are lots of organisms that fall under this category.
Protists are tiny group of organisms that can only be seen/viewed with the aid of a strong microscope. Protists only have one type of cell and lots of these organisms are found in an aquatic environment.
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A local watershed carries runoff from farms, suburban lawns, and wastewater treatment plants into local rivers, and eventually into a local bay. How could this affect the health of the bay?
A. It could make water hypoxic for organisms.
B. There will be an increase of aquatic plants and fish.
C. It could increase dissolved oxygen for fish.
D. There will be decreased nutrients in the water.
Answer:
answer should be "making water hypoxic for organisms". reason is because the runoff from these treatment plants are filled with nutrients, which will cause eutrophication. eutrophication is excessive algae sprouts which create more DO but then later becomes all used up when they decompose, making it so other organisms have no oxygen.
The runoff water from farms, suburban lawns, and wastewater treatment plants into local rivers affects the health of the bay by making water more hypoxic for organisms. Thus, the correct option is A.
What is Local bay?A Local bay may be defined as an area of the sea or other water bodies which are usually smaller than a gulf. It is mostly surrounded by water.
The runoff water from farms, suburban lawns, and wastewater treatment plants contain an enormous amount of nutrients that assist the growth of algae over the surface of water bodies known as eutrophication.
These algae consume all much of the available oxygen of the water body and make the environment hypoxic i.e. oxygen deficient.
Therefore, the correct option for this question is A.
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aside from the hard-boiled egg, what other things can you compare to the earth's interior layer
Answer:
The Avocado because its seed represents its core and the avocado meat represents the mantle and the skin of the avocado represents the crust
Explanation:
Hope it Helps
Answer:
An Avocado can be another example
Explanation:
Which structure is most directly responsible for maintain homeostasis in all the cells?
Answer:
Cell membrane or plasma membrane is most directly responsible for maintain homeostatis in all cells.
three cell organelles found in plant and animal cell
Answer:
Image result for three cell organelles found in plant and animal cell
Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.
How the form of ostrich’s eggs help the bird survive?
Answer:
Adaptations that make ostriches fast on land but unable to fly include long legs with strong muscles, thick bones and powerful 2-toed feet