Answer:
As the water cools, the molecules in the water slow down to turn into ice.
As this happens the water stagnates and organisms in the water go into a hibernation to avoid freezing or starving
Laying the groundwork for the 'germ theory' of disease _________ discovered that organisms cannot spontaneously arise, but must be introduced into an environment.
A. Anthony Van Leeuwenhoek
B. Louis Pasteur
C. Robert Hooke
D. Ernst Ruska
Laying the groundwork for the 'germ theory of disease, Louis Pasteur discovered that organisms cannot spontaneously arise, but must be introduced into an environment.
Who was Louis Pasteur?Louis Pasteur was a chemist and microbiologist. He is known for the discovery of vaccines, fermentation, and pasteurization.
The germ theory is given by Pasteur. He first of all states that process fermentation is done by living organisms, bacteria, and yeast.
Thus, option B. Louis Pasteur is correct.
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the scientific name of the great egret has recently been changed from Casmerodius albus to Ardea alba. What is a possible reason for the reclassification of egrets?
A) Allopatric speciation
B) Discovery of a different ancestor
C) A change in the mating behaviors
D) A change in their habitat and geological range
Answer:
B) Discovery of different ancestry
Explanation:
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Jim has become particularly interested in the genetic basis of cancer and has spent considerable time reading published papers about oncogenes. He learned that as early as 1972 researchers suggested that mutations in proto-oncogenes caused by carcinogens can convert them to oncogenes. He asked you to answer a couple of questions about this because he did not have the biology background to totally understand. Jim learned that some cancer cells produce more growth-stimulating proteins than others. What would you give him as a plausible explanation
Answer:
Proto-oncogenes may have mutated to become oncogenes in these cells
Explanation:
Cancer cells are characterized by key properties such as an abnormally rapid rate and poor differentiation. Proto-oncogenes are genes that lead normal cells to become cancer cells when they are mutated. Many proto-oncogenes are involved in the control and progression of the cell cycle, and apoptosis (programmed cell death) pathway. Some examples of protooncogenes include 1-the Ras gene, which is required for differentiation, growth, and cell survival (mutations of this gene have been reported in pancreatic cancer, lung cancer, colon cancer and thyroid cancer), 2-the Myc gene (mutated in Burkitt's lymphoma), 3- the Her2 receptor (a receptor kinase associated with breast cancer), etc.
5. How could looking at the canopy help determine the difference between a forest and a
woodland?
Answer:
Forests naturally have a closed canopy permitting very little light to penetrate to the ground below. While woodlands have a more open canopy for light to go through it.
Explanation:
Scientific laws attempt to explain nature
True
False
Answer:
I think that is is false.
Dựa vào đặc điểm của vỏ quả và hạt, loại quả nào dưới đây được xếp cùng nhóm với quả mơ ?
A. Nho B. Cà chua
C. Chanh D. Xoài
Answer:
A and C
Explanation:
what is the relationship between an enzyme and the substrates it can bind
Answer:
Enzymes and substrates bind to each other associating through various interactions, including hydrogen bonds, hydrophobic interactions, and covalent bonds.
define uniform and non-uniform velocity. How much acceleration is produced on an object at uniform motion, why? Pls answer my question anyone pls!
Answer:
when a body covers equal distance in equal interval of time with a known direction, small the interval may be then velocity is said to be uniform velocity.
when an object covers unequal distance in a specified direction is said to be non-uniform velocity.
It produce zero acceleration as acceleration is defined as the rate of change of velocity per unit time. So, if the body exhibit uniform velocity,then the rate of change of velocity (dv=0) will be zero.
Explanation:
This answer may help u .
carbohydrate are store in animal cell in the form of
Answer:
molecule glycogen
Plants store carbohydrates in long polysaccharides chains called starch, while animals store carbohydrates as the molecule glycogen.
what are living organisms?
Answer:
In,biology, an organism is any organic, living system that functions as an individual entity. All organisms are composed of cells. Organisms are classified by taxonomy into groups such as multicellular animals, plants, and fungi; or unicellular microorganisms such as protists, bacteria, and archaea
Explanation:
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Name the 5 systems of the human body.
Answer:
Skeletal System
Muscular System
Circulatory System
Endocrine System
Digestive System
are systems of the Human Body
Explanation:
Answer:
Digestive system
Circulatory system
Respiratory system
Nervous system
Skeletal system
what is cell division?
Answer:
cell division is the process by which a living cell proliferates from one cell to two cells.
I hope this helps
Answer:
Cell division is the process by which a parent cell divides into two or more daughter cells. Cell division usually occurs as part of a larger cell cycle
Explanation:
pls answer this question i think easy
Answer:c
Explanation:it must be c if im wrong then sue me!
Answer:
B. Food is broken into simpler molecules.
Explanation:
these small molecules are; proteins, amino acids, glucose, e.t.c
The___ cycle is not a nutrient cycle
Answer:
use
Explanation:
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READING TOOL Sequence of Events List in order the parts of a typical experiment that uses
scientific methodology. Use the headings in your text as a guide.
Answer:
2. Background research
3.Create a hypothesis
4.Experiment to test the hypothesis
5.Analyse the data from the experiemnt
Explanation:
2. Learn about the topic and research on what you need for the experiment.
3.Form a hypothesis in which you want to be tested.
4. Do an experiment in which it tests your hypothesis.
5. Analyst the data from the experiment and draw conclusions and decide whether it tests your theory.
Which of the following terms is the life
cycle of a living cell?
A. g1
B. cell cycle
C. interphase
D. mitosis
Answer:
cell cycle is the term of the life cycle of a living cell
Why ulva is not placed in kingdom plantae
Answer:
Because Ulva is an algae. Algae belongs to kingdom Protista.
Explanation:
Ulva is a Macroalgae because it's not microscopic.
Macroalgae is not considered as a plant due to their structure. Macroalgae do not have specialized organs and tissues, and they are not vascularized. They also do not have the capacity to form a structure with flowers, leaves, roots or a stem.
use numbers to arrange the events of a demographic transition in order in which they occur
is this correct?
(DTM) is defined by a country's death rate dropping quickly while its birth rate staying high. Because of this, a nation in Stage 2 will show an increase in its general population—not because the birth rate is rising, but because births outnumber deaths.
What are the different events of a demographic transition?The demographic transition model was initially proposed in 1929 by demographer Warren Thompson. The four stages of the paradigm are pre-industrial, urbanizing and industrializing, mature and post-industrial.
Stage 1: Slow population growth is caused by high birth and mortality rates. Stage 2: While the birth rate stays high and the death rate declines, population growth accelerates. Stage 3: Population growth slows as the birth rate starts to decline.
Therefore, 1,4,2 and 3. It is correct events of a demographic transition in the order in which they occur.
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Convert 90 centuries to minutes using the method of dimensional analysis.
[tex]\huge\text{Hey there!}[/tex]
“[tex]\large\text{Convert 400 mm to m}[/tex]”
[tex]\large\text{Just simply divide 400 by 1,000 and you will have your result.}[/tex]
[tex]\mathsf{\dfrac{400}{1,000}}[/tex]
[tex]\mathsf{= \dfrac{400\div200}{1,000\div200}}[/tex]
[tex]\mathsf{400\div 200 = \bf 2}[/tex]
[tex]\mathsf{1,000 \div 200 = \bf 5}[/tex]
[tex]\mathsf{= \bf \dfrac{2}{5}}\rightarrow\mathsf{\bf 0.4}[/tex]
[tex]\boxed{\huge\textsf{Therefore, your ANSWER is: \boxed{\bf \dfrac{2}{5} \ or \ 0.4}}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
Which of these statements expresses a scientific theory?
A. All the tissues that make up animals consist of cells.
B. The larger of two cells probably contains a nucleus.
C. Cells are the basic units of life.
ОО
D. A material that consists of cells came from a living organism.
Answer:
C
Explanation:
The cells make up a living organism, that is, it is the basic functional unit of the living organism.
LOS ALIMENTOS Q EVITAN Q NOS ENFERMEMOS, CONTIENEN: A) LECHE B) ACEITE C) CARBOHIDRATOS D) GLÚCIDOS E) NARANJA
Respuesta:
La respuesta correcta es: E) naranja.
Explicación:
La vitamina C está presente en los cítricos, como la naranja, el limón y el pomelo. La naranja es una fruta muy rica en vitamina C, de hecho, basta con una al día para cumplir con los requerimientos diarios de esta importantísima vitamina.
Si bien el consumo de vitamina C no cura enfermedades, se probó que tiene un papel fundamental a la hora de reforzar nuestro sistema inmunitario, que es aquel que nos protege de los diferentes microorganismos que nos pueden enfermar.
Además de su rol importante en fortalecer nuestras defensas inmunitarias, el consumo diario de cítricos contribuye a prevenir el cáncer de colon y a regenerar los cartílagos.
what type of transport takes place when a protien allows an ion to enter a cell, but no additional energy is needed to make this happen?
Answer:
The answer is facilitated diffusion. It requires no energy because the ions are traveling down the concentration gradient. Facilitated diffusion is important for the regulation of ions in a cell. It also enables ions to pass across the hydrophobic layer of the cell membrane composed of phospholipids.
How fast does E. coli manifest symptoms A. 3 mins B. 3 hours C. 3 days D. 3 weeks
Answer:
C. 3 days
Explanation:
Answer:
c
Explanation:
2-5 days after exposure is when symptoms show
taken from the minnesota department of health
A class was performing an experiment to discover the pH values of some common household substances. The results of three groups are shown in the table below.
Substance
Group 1 pH
Group 2 pH
Group 3 pH
Lemon juice
2.2
2.2
2.1
Vinegar
2.8
2.8
8.2
Baking soda
8.4
8.5
8.4
Milk of magnesia
10.2
10.3
10.2
Which statement best describes evidence that Group 3’s data are less valid than the data for the other two groups?
a. Group 3’s pH value for lemon juice is lower than the values of the other two groups.
b. Group 3’s pH value for vinegar is much higher than the values of the other two groups.
c. Group 3’s pH value for baking soda does not exactly match the values of the other two groups.
d. Group 3’s pH value for milk of magnesia is different from the value obtained by Group 2.
Answer:
b. Group 3’s pH value for vinegar is much higher than the values of the other two groups.
hope it helps :)
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Answer:
B
Explanation:
Which autoimmune disease results in the destruction of beta cells in the
pancreas?
type 1 diabetes
pernicious anemia
celiac disease
rheumatoid arthritis
An actin-binding protein called cofilin binds preferentially to ADP-containing actin filaments rather than ATP-containing actin filaments. Based on this preference, which is true? Question 7 options: Cofilin binds to the plus ends of treadmilling actin filaments. Cofilin competes with profilin for binding to actin. Cofilin binds to older actin filaments. Cofilin binds to the plus ends of actin filaments.
Answer:
Cofilin binds to older actin filaments
Explanation:
Microfilaments (also called actin filaments) are a class of protein filament common to all eukaryotic cells, which consist of two strands of subunits of the protein actin. Microfilaments form part of the cell's cytoskeleton and interact with the protein myosin in order to allow the movement of the cell. Within the cell, actin may show two different forms: monomeric G-actin and polymeric F-actin filaments. Microfilaments provide shape to the cell because these filaments can depolymerize (disassemble) and polymerize (assembly) quickly, thereby allowing the cell to change its shape. During the polymerization process, the ATP that is bound to G-actin is hydrolyzed to ADP, which is bound to F-actin. ATP-actin subunits are present at the barbed ends of the filaments, and cleavage of the ATP molecules produces highly stable filaments bound to ADP. In consequence, it is expected that cofilin binds preferentially to highly stable (older) filaments ADP-actin filaments instead of ATP-actin filaments.
predict what happen to the human and the plants if the transport system are affected
I think we'll be scared and panicked and some people will die of overthinking
do fertilised eggs divide to form a foetus
Predict: Some pathogens are spread directly from one person to another. This can happen when people come into direct contact or share items, such as drinking glasses. What do you think might affect how quickly a pathogen is spread from person to person?
I think the reservoir ( a human,animal or non living such as soil where the infectious agent normally lives)
secondly the mode of transmission,there are some modes of transmission that allow the pathogen to enter quickly and some that make the process slow.
and also crowding and the presence of co-infections.
i hope this helps
H20fall, how do I find out how much salt is in my pool?
A very peculiar question, kind sir
I supposed one can start by allowing his pool water to evaporate in the blazing summer heat in order to separate the solute (salt) from the solvent (water). After the separation, the obtained mass of salt can be measured on a scale in order to determine the concentration of salt that is present within thy swimming pool. This technique is the most classic of all, and is also the most expedient way to extract salt from water.
