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 :)
mark brainliest!!!
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.
Antidiuretic hormone (ADH) is produced by the pituitary gland when the brain detects lower than optimum levels of water in the body. In the kidneys, ADH promotes the uptake of water, creating more concentrated urine. ADH travels from the pituitary gland to the kidney through the ________ system.
Answer:
circulatory system
Explanation:
ADH travels in the bloodstream to the kidneys
18. Which of the following is NOT a distinctive property of minerals?
a. double refraction
b.greasy feel
c. streak
d. magnetism
Answer:
streak
Explanation:
hope that helps
Which of the following is not used to hold liquids?
a.
flask
b.
graduated cylinder
c.
balance
d.
test tube
Answer:
C. balance
This is because it is because a balance is an even distribution of weight hence balance is not used to hold the liquid instead a balance is used to weigh the liquid
Answer:
c. balance
Explanation:
Complete the following statement using the choices below. Air moves out of the lungs when the pressure inside the lungs is ________. less than the pressure in the atmosphere greater than the intra-alveolar pressure greater than the pressure in the atmosphere equal to the pressure in the atmosphere
Answer:
Air moves out of the lungs when the pressure in the lungs is greater than the pressure in the atmosphere.
All of the following are arguments used by global warming skeptics except
(A) climate models for global warming have continually been wrong
(B) the dire consequences of global warming have not come pass
(C) earth has natural temperature cycles it goes through
(D) an increase in temperatures would actually be good for the climate
Explanation:
the answer is b because the consewuences of global warming had not yet pass
Answer: D
Explanation: No climate change deniers think that climate change is good for the the planet, they just deny that climate change exists
define the term gene mutation
Answer:
it is the change in one or more genes
what are the types of tropism
Answer:
Forms of tropism include phototropism (response to light), geotropism (response to gravity), chemotropism (response to particular substances), hydrotropism (response to water), thigmotropism (response to mechanical stimulation), traumatotropism (response to wound lesion), and galvanotropism, or electrotropism (response to electric current).
Tropism is a response to certain stimuli. A positive tropism is moving towards the stimuli, while a negative tropism is moving away from a stimuli.
Positive Phototropism - Growing towards light
Negative Phototropism - Growing away from light
Positive Thigmotropism- Moving towards touch
Negative Thigmotropism- Moving away from touch
Positive Hydrotropism - Growing towards water
Negative Hydrotropism - Growing away from water
Positive Gravitropism - Growing towards ground
Negative Gravitropism - Growing upwards
1.11) Answer True or False.
A species will become extinct if all its individuals stop reproducing.
False
True
Answer:
True . I think it's true. hope this helps
which of the following gases pollutes water when dissolved in water
(a) carbon dioxide
(b) nitrogen
(c) oxygen
(d) sulphur dioxide
Answer:
Carbon dioxide or nitrogen
hopefully its carbon dioxide u can try
to check if it is. Sorry
what is combine? How does it makes harvesting easier
Answer:
Cereal crops are gathered in by the header at the front, which has a pair of sharp pincers called crop dividers at either end. Generally speaking, the wider the header, the faster and more efficiently a harvester can cut a field.
Explanation:
Answer:
I HOPE YOU WILL HAVE A SWEET DREAM .
:D
Which concept is illustrated in the flowchart below?
Overproduction arrow pointing Struggle for survival arrow pointing Survival of the fittest arrow pointing Changes in traits of species
Dynamic equilibrium
Genetic manipulation
Material cycles
Natural selection
Answer:
Natrual selection
Explanation:
your welcome girlies <333
The concept illustrated in the flowchart is Natural selection. The correct option is 4.
What is natural selection?Natural selection is the process by which species evolve over time as the prevalence of certain traits increases or decreases in a population.
Natural selection, the mechanism by which species evolve over time, is depicted in the flowchart.
Overproduction of offspring causes competition for limited resources, resulting in a struggle for survival.
Based on their inherited characteristics, some people are better equipped to survive and reproduce than others.
These people are said to be "fit," and they are more likely to pass on their positive traits to their children. These advantageous traits become more common in the population over time, causing changes in the species as a whole.
Thus, the correct option is 4.
For more details regarding natural selection, visit:
https://brainly.com/question/2725702
#SPJ3
Your question seems incomplete, the probable complete question is:
Kể tên các biện pháp đấu tranh sinh học. Cho ví dụ. Biện pháp đấu tranh sinh học có những ưu điểm gì?
Answer:
means translate in English . if I can help I will.
A specimane collection helps a scientsist do research by:
A. Asembling a large number of sample comparisons
B.providing a way to afford even the most expensive equpment
C.creating a realistic depiction of an imaginary undersea world
D.summerizing the results of an other scientists investigations
Answer A:
Explanation:
Which of the following questions would be answerable by science as it is written?
Does broccolli taste better than brussel sprouts??
Is Disney world the happiest place on earth?
All bees are dying due to pesticides?
w
Are clorox wipes effective at killing bacteria?
Answer: Are clorox wipes effective at killing bacteria?
Explanation: You must determine which of the questions can be fufilled using the scientific method. The first two questions are primarily opinion based. The question on Bee's is a possible answer although, it has many unexplained variables, and becuase of this, it's difficult to create a hypothesis around.
After phosphates and nitrates have entered a water
system, identify the correct steps of Eutrophication.
I. Oxygen levels drop
II. Underwater plants die
III. Fish and invertebrates die
IV. Algae grows rapidly
A. II, III, IV, I
B. IV, II, I, III
C. I, III, IV, II
D. III, II, I, IV
After phosphates and nitrates enter a water system, the steps of eutrophication include the rapid growth of algae, death of underwater plant species, depletion of oxygen in the water, and the death of fishes and invertebrates. The correct option would be B.
Eutrophication refers to the excessive enrichment of water bodies by nutrients such as phosphates and nitrates thereby facilitating the rapid growth of some aquatic species with negative effects.
Once a water body becomes excessively enriched with phosphates and nitrates, the following is a sequence of events that follows:
Algal bloom: the nutrients facilitate the rapid growth of algaeThe bloom of algal species results in the death of underwater plants as a result of inadequate light.The death of the underwater plants and the accompanying microbial activities in decomposing them cause oxygen levels in the water to drop.Reduction in oxygen level causes fishes and other water invertebrates to die due to hypoxiaTherefore, the correct steps of eutrophication according to the illustration is IV, II, I, and III.
More on eutrophication can be found here: https://brainly.com/question/13232104
How do feedback mechanisms help maintain homeostasis?
it involves negative feedback loop
Explanation:
the loop allows living organisms to maintain homeostasis
suggest TWO reasons why fewer birds and other small animals can survive in the areas left after trees have been cut down
Answer:
One is that they migrate to more fertile places.
Second, some animals may die because they can't stand the conditions of treelessness. But some animals can survive. because of adaptation
Explanation:
Removal of trees and other types of vegetation can reduce the availability of food, shelter and breeding habitat
What is Deforestation?Deforestation also known as forest clearance is defined as the removal of forest or stands of trees from land that is converted to non-forest use in which forest land is converted into farms, ranches or urban may involve converting to use. The most concentrated deforestation occurs in tropical rainforests.
It occurs when humans remove or thin forests for timber or use land where trees stand for crops, grazing, extraction such as mining, oil, or gas, or as populations grow and people move. Development takes place in the form of migration.
Wildlife habitats are fragmented due to deforestation, where native species have to live on remaining habitat islands that are surrounded by disturbed land being used for agriculture and other uses.
Thus, removal of trees and other types of vegetation can reduce the availability of food, shelter and breeding habitat
Learn more about Deforestation, here:
https://brainly.com/question/11697527
#SPJ2
Give the functions of the following parts of the respiratory system - Nostril - trachea - bronchiole - alveoli - pharynx - larynx - lungs - ribs - diaphragm
Answer:
Respiratory System: The respiratory system's main job is to move fresh air into your body while removing waste gases.
Nostril: To warm air on inhalation and remove moisture on exhalation.
trachea: Serves as passage for air, moistens and warms it while it passes into the lungs, and protects the respiratory surface from an accumulation of foreign particles.
bronchiole: To deliver air to a diffuse network of around 300 million alveoli in the lungs.
alveoli: To exchange oxygen and carbon dioxide molecules to and from the bloodstream during breathing.
pharynx: Helps the respiratory system by allowing air to make its way to the respiratory tract.
larynx: Produces vocal sounds and prevents the passage of food and other foreign particles into the lower respiratory tracts.
lungs: To help oxygen from the air we breathe enter the red cells in the blood.
ribs: To aid respiration and help protect the lungs.
diaphragm: Contracts and flattens when you inhale. Creates a vacuum effect that pulls air into the lungs, and relaxes when exhaling.
Why are scientific journals considered a superior resource compared to other sources of scientific information?
I NEED HELP
Scientific journals are regarded as more superior due to the fact that they are peer reviewed.
What this means is that before a scientific journal would be approved for publishing, it first has to be reviewed by some experts in that scientific field.
What these peers do is to Approve the journal, make suggestion to the work, or they can decide to reject the work if they find it unsatisfactory.
read more on https://brainly.com/question/10744574?referrer=searchResults
Scientific journals are generally specialized for distinct academic fields or subdisciplines, and they are the most important way of communicating research findings.
However, Scientific information is concerned with the creation, gathering, categorization, retention, retrieval, interpretation, transmission, and usage of data.
The major difference is that Scientific journals are peer reviewed while scientific information are merely gathering of information.
Learn more about scientific information here:
https://brainly.com/question/13084951?referrer=searchResults
PLEASE HELP MAX POINTS
04.05 MC) What type of energy transformation takes place when carbon is cyded during cellular respiration?
Select one:
a. Chemical energy to chemical energy
b. Chemical energy to electrical energy *
c. Mechanical energy to chemical energy
d. Mechanical energy to mechanical energy
Answer:
A) Chemical energy to chemical energy.
•••••••••••••••••••••
OAmalOHopeO
Answer:
Option A
Explanation:
cellular respiration happens in living species not machines .
Our bodies doesn't contain or produce electricity .
Hence chemical energy is converted only into chemical energy
Option A
Conrad is studying for class. To remember the term _____, he uses the analogy of a thermostat in a house. For instance, when the temperature falls below the set point, the heat will turn on to correct the temperature. allostasis epistasis homeostasis biostasis
Answer:
Think its homeostasis
Explanation:
How did Alexander Fleming's research solve a societal problem?
• He developed ways to treat inherited diseases.
• He advocated for
regular hand washing to kill germs.
• He discovered a new
type of medicine that could treat infections.
• He discovered the cause of mad cow disease,
an emerging disease.
He discovered a new type of medicine that could treat infections.
He discovered the 1st antibiotic (penicillin).
