2.16 Unit Test: Evolution - Part 1
Answer:
*see docs*
Explanation:
*i took the test and did the Practice activity*
Fifty years ago, bed bugs were nearly eliminated in the United States by using of pesticides like DDT. Today bed bugs are back in beds and theaters. DDT is no longer used due to environmental issues. Pyrethrums are currently the top choice for bed bug infestations. Pyrethrums are especially useful to us because they generally have a stronger effect on bugs than on humans and animals. However, bed bugs have become resistant to even this chemical pesticide. What happened that allowed the bug population to increase? A) the chemicals used currently are weaker B) the chemicals no longer can penetrate bed bugs brains C) the bed bugs of today are exactly the same as the bed bugs of fifty years ago D) the bed bugs that survived the DDT years ago, reproduced new generations of chemical resistant offspring
Answer:
D) os percevejos que sobreviveram ao DDT anos atrás, reproduziu novas gerações de filhotes resistentes a produtos químicos
Explanation:
It is very common for chemical insecticides to cause insect-resistant insects such as bed bugs shown in the above question. This was because when DDT was used to exterminate the bed bug population, some of these insects had chemical resistance to this product, which means that the product had no effect on their organisms.
These bed bugs survived and reproduced, creating new bed bugs that inherited their genetic property capable of producing DDT resistance. These bed bugs also reproduced thus generating a population of resistant bed bugs. The result is that the product has become inefficient in this new generation of bed bugs.
What is the role of glu 270 and arg 145 in catalysis?
does baby mammals depends on milk to survive
Match the scientist with the correct statement. 1. astronomer "Sea otters are on the endangered species list due to over-hunting for their beautiful fur." 2. geologist "A dinosaur mummy was found with much of its tissues and bones still encased!" 3. oceanographer "Many schools in Vermont are closed due to heavy snow, sleet, and rain." 4. meteorologist "Black holes are a small sphere of densely packed matter."
Answer:
Many schools in Vermont are closed due to heavy snow, sleet, and rain- meteorologist.
Black holes are a small sphere of densely packed matter - astronomer.
Explanation:
Hospitals can protect themselves from successful wrongful discharge litigation by
which two organisms are most closely related, based on the tree above?
A. ray-finned fishes and sharks
B. rodents and primates
C. dinosaurs and crocodiles
D. dinosaurs and birds
Answer:
D. Dinosaurs and birds !!
Explanation:
Hope that helps ya!^^ <3
Final answer:
Dinosaurs and birds are the two organisms that are most closely related.
Explanation:
Based on the information provided, the two organisms that are most closely related are dinosaurs and birds. Birds are considered to be highly modified diapsids and they evolved from theropod dinosaurs. They share a common ancestor and have similar structural characteristics, such as the presence of feathers and a beak.
What behaviors would indicate to the charge nurse that one of the nurses could be experiencing countertransference? (found in the mental health review module)?
The charge nurse must observe some unconscious positive or negative expression of nurse’s level of involvement with the patient where it often result to displaced emotions, stemming from the clinician’s previous life experience and having a detrimental effect on the relationship between clinician and client.
With these indications, one of her nurse is experiencing countertransference where she is over identifying with the patient and that action will be reflected in the quality of care the patient receives.
The behaviors that would indicate to the charge nurse that one of the nurses could be experiencing countertransference are:
Deterioration of client and nurse relationship Displaced emotions
Further Explanation:
The transference of the diseases of the patient to the nurse who takes care of the patient is the process called countertransference. This transfer is possible by several ways like, needles transfer, clothes and other necessities transfer. The countertransference leads to the nurse suffering from same or similar disease as the patient with varied intensities.
The needlestick safety and prevention actdirectsthe employing body to eradicate or minimize exposure to contaminated sharps.Signed on November 6th 2000, this act works on the principal safe needles save lives. This campaign was launched by American nurses association. In this act the employers are required to identify, implement and evaluate safer medical devices and maintain a sharp injury log. This act in sure that the occupational front in the health sector is free from blood borne pathogens and diseases. This act directs the occupational safety and health administration (OSHA) to modify the blood borne pathogen standard. The revised standard of OSHA was published on 18th April 2001 and came into existence on 17th July 2001.
The blood borne pathogens are the potentially infectious pathogens that cause diseases such as AIDS, HBV, HCV etc. The workers at the healthcare front are constantly exposed to pathogens via different ways of contact. One major reason for transfer of blood borne pathogens from infected patients to the workers at healthcare sector is contaminated sharp objects used at hospitals. The diseases like AIDS and HBV can also spread through other means too.
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Answer Details:
Grade: High School
Subject: Health
Chapter: Occupational Safety
Keywords:
Needlestick safety and prevention act, healthcare sector, bloodborne pathogens, accidental sharps, occupational settings, AIDS, HIV, acquired immunodeficiency syndrome, human immunodeficiency virus, hepatitis B virus, hepatitis B, hepatitis c virus, hepatitis c, OSHA.
The animals living in the deeper parts of the sea floor, ____
The American Psychological Association is the only organization that can approve psychological research studies. Please select the best answer from the choices provided T F
Which compound is inorganic?
A. C6H12O6
B. KH2PO4
C. CH3COOH
D. C2H6
E. C2H5OH
The compound is inorganic B. KH₂PO₄ as it has no carbon but all the organic compounds have the carbon.
What are the four inorganic compounds?The following phase examines the 4 businesses of inorganic compounds crucial to life: water, salts, acids, and bases.
Compound wherein carbon-hydrogen bonds is absent is known as an inorganic compound.
An inorganic compound or greater factors are joined in exact proportions.
They are dissolved in water mythical H₂F is the molecular system of Potassium dihydrogen phosphate.
It is a product of potassium salt and dihydrogen phosphate ions which is likewise called monobasic potassium phosphate.
Potassium dihydrogen phosphate is used as a buffering agent and utilized in fertilizers.
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States that all living things are composed of cells, cells are the basic unit of life, and cells come from pre-existing cells
it is about the unified cell theory.
The statement you provided describes the fundamental principles of cell theory:
All living things are composed of cells: Cell theory asserts that all living organisms, whether they are single-celled or multicellular, are made up of one or more cells. Cells are the structural and functional building blocks of life.
Cells are the basic unit of life: Cell theory recognizes that cells are the smallest units of life and the fundamental functional and structural entities of living organisms. All life processes and functions occur within cells.
Cells come from pre-existing cells: This principle highlights that cells arise through the division of pre-existing cells. In other words, new cells are produced from the division of parent cells. This concept contrasts with the earlier idea of spontaneous generation, which posited that life could arise spontaneously from non-living matter.
Cell theory is a foundational concept in biology, and it was developed through the work of scientists like Matthias Schleiden, Theodor Schwann, and Rudolf Virchow in the 19th century. It provides a unifying framework for understanding the structure, function, and origin of all living organisms.
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The probable question maybe:
"What scientific theory states that all living things are composed of cells, cells are the basic unit of life, and cells come from pre-existing cells?"
Suggest reasons why the information represented in the pyramid of numbers of animals of one of the ecosystems you studied may not truly represent that ecosystem.
Name two vestigial structures.
(20 POINTS/WILL MARK BRAINLIEST) Compare natural selection to evolution. Be sure to justify your response in two or more complete sentences.
Answer:
Evolution is the process of a new species being made. Natural selection is when adapted organisms thrive and survive.
A severe iodide deficiency during early pregnancy may result in an infant afflicted with
What is the primary function of most bacteria in a food web? A) producer B) predator C) decomposer D) primary consumers
Answer: is c
Explanation:
decomposer is teh answer
Human blood type a and b follows codominance rules. robert has codominant blood and audrey has the same blood type as her mother, who has heterozygous b blood. robert and audrey had two boys, clint and jordan.
a. (1pt) complete the punnett square for the mother and father below
Plant cells produce oxygen gas ____. by splitting carbon dioxide. by splitting ribulose bisphosphate. by breaking down glucose by splitting molecules of water.
Plant cells produce oxygen gas by splitting molecules of water.
• A kind of chemical reaction in which molecules are dissociated into smaller components by the activity of light is termed photolysis.
• For example, in the process of photosynthesis, the photolysis of water molecule takes place under the activity of light.
• During the process of photolysis, the absorption of photons takes place, which makes hydrogen to combine with an acceptor, and subsequently discharging the molecule of oxygen.
• The molecule of water acts as a substrate for photolysis in the process of photosynthesis, resulting in the formation of diatomic molecule of oxygen.
Thus, plant cells produce oxygen gas by splitting the molecules of water.
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Plasmodial slime molds move by A. whipping their flagella. B. streaming along as a mass of cytoplasm. C. infecting a host organism. D. beating their cilia.
Answer: streaming along as a mass of cytoplasm.
Explanation:
Plasmodial slime molds are single cells that are fuse together by 1000 nuclei that are formed by the fusion of several flagellate cells. They form fruiting bodies when there is stimulus. The fruiting bodies help to disperse individual cells when there is favorable condition. They move by ooze to obtain good.
True or false: polysaccharides, lipids, and other non-protein antigens are called t-independent antigens because they induce antibody responses without t cell help.
a. True
b. False
What can be concluded about Clades 2 and 4 from this cladogram?
A- clade 2 was derived from clade 4
B- clade 4 is ancestral to class 2
C- clade 4 was derived from clade 2
D- clade 2 is a subset of clade 4
A water-soluble hormone approaches its target cell. Which of the following happens last?
a. the hormone's signal initiates protein synthesis within the target cell
b. the hormone's signal is transduced through the cytoplasm of the target cell
c. the hormone molecule enters the nucleus and binds with the DNA
d. the hormone molecule binds to receptors within the cytoplasm
. Which order of amphibian is characterized as having no legs?
1a. the hmgr-n3 allele fails to bind with srebp. what part of the gene is broken in this allele? (circle one)
In genetic engineering, the staggered cuts in dna that allow genes to be spliced together are made by __________.
The answer is restriction enzymes. These staggered ends are important in recombination of DNA since they allow DNA strands with complementary sticky ends to be easily joined into one piece by DNA ligase. Other restriction enzymes produce blunt ends. These are harder to join by DNA ligase. An example of a restriction ezyme if EcoRI
what causes Earth's crust to crumble and fold
The Earth's crust crumbles and folds due to movements and interactions of tectonic plates that exert forces called stress, causing the physical deformation known as strain.
The Earth's crust crumbles and folds mainly due to the movement and interactions of tectonic plates. This process involves significant forces that cause the crust to bend, deform, and sometimes break, leading to the formation of folds and faults. These forces are known as stress, and the resultant physical changes in the crust are referred to as strain.
There are three basic kinds of stress:
Compression: Occurs when rock masses are pushed together, often creating folds in the rock. This typically happens when tectonic plates collide.Tension: Pulls the crust apart, leading to thinning and lengthening of the crust, such as the formation of rift valleys.Shearing: Takes place when plates slide past each other, cutting the crust into parallel blocks and displacing them horizontally.Deep within the Earth, as plates collide, rocks crumple into folds much like when you push on opposite edges of a piece of cloth. These processes not only shape Earth's surface but also result in geological activities like earthquakes and volcanic eruptions.
what's is a nucleus?
During photosynthesis, specific pigments absorb light energy, which is then used to fuel the building of sugar molecules. which colors correspond to the wavelengths of light that are strongly absorbed by each pigment? some pigments absorb more than one color of light strongly.
Plants have three main kinds of pigments. These are chlorophylls (blue and red wavelengths), carotenoids (violet-blue wavelengths), and flavonoids (UV wavelength).
What are plant pigments?Chlorophylls, anthocyanins, carotenoids, and betalains are the four primary groups that are included in the classification of plant pigments. They are responsible for the majority of the colors that are naturally produced from plants.
Pigments are chemical substances that impart color. The capacity of pigments to take in certain wavelengths of light is significantly more essential than their capacity to reflect light. Pigments are beneficial to plants and other autotrophs because of their interaction with light and their ability to absorb just specific wavelengths. Photosynthesis is the process by which these organisms create their own food and sugar molecule.
Therefore , pigments like chlorophylls (blue and red wavelengths), carotenoids (violet-blue wavelengths), and flavonoids (UV wavelength) absorb respecitve wavelengths.
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The plasma membrane allows some molecular species to enter and excludes others. It is therefore referred to as a(n) _____ membrane.
Answer: Semi-permeable
Explanation:
The cell membrane are the semi-permeable membranes which are made up of proteins and phospholipids. The semi-permeable membrane causes some molecules or ions to pass through the membrane and protects the other to enter inside. This process avoids harmful ions and molecules to pass enter inside the cell and cause damage to the cell. This process helps in maintaining the cell metabolism.
A primiparous woman tells the nurse that she and her partner are highly reluctant to have their infant vaccinated, stating, "we've read that vaccines can potentially cause a lot of harm, so we're not sure we want to take that risk." how should the nurse respond to this family's concerns?
The nurse should respond that "Vaccinations are not without some risks, but these are far exceeded by the potential benefits." The nurse should explain the benefits that vaccine can be in the health of the child hence there are news about it there isn’t direct evidence saying that it’s not good for babies at all.