Answer: Bacteria are microscopic, single-celled organisms that thrive in diverse environments. These organisms can live in soil, the ocean and inside the human gut. Humans' relationship with bacteria is complex. Sometimes bacteria lend us a helping hand, such as by curdling milk into yogurt or helping with our digestion.
A dollar weed species has become resistant to a particular weed killer. What happens to the percentage of dollar weed offspring that survive weed killer treatments in future generations?
Answer:
A. The percentage will increase
Explanation:
If the species is becoming resistant to the weed killer, natural selection will cause future generations to become resistant as well, therefore the percentage of resistant dollar weed will increase. Also I took the test lol.
guyss can you please help mee it's importantt
What type of relationship exists between the snake and the shrew?
A. competition
B. predation
C. parasitism
D. mutualism
An EMT reaches the scene of a car accident, disinfecting and dressing a man's head wound that has been bleeding profusely. Upon taking off his bloodied latex gloves, he notices that a shard of window glass has penetrated one glove and cut is palm. Years later, long retired after a second career as an accountant, he is surprised to discover that he has liver cancer. Thinking back, he recalls having received both hepatitis vaccines available at the time of the exposure, and guesses that he may most likely have been exposed to __________.
Answer: hepatitis C.
Explanation:
Based on the information given in the question, it's most likely that the person has been exposed to hepatitis C.
Hepatitis C is an infection that is caused when a virus attacks the liver which leads to the inflammation of the liver. Since the person reaches the scene of a car accident, it's possible that the EMT got in contact with the contaminated blood. In this case, he most likely have been exposed to hepatitis C.
Please Help!
What can you determine from the principles of cross-cutting relationships?
A. Layers that cut across the most other features are youngest.
B. In a given region, all layers of sediment form at the same time.
C. The layers of sediment on the bottom are the oldest.
D. Two different types of sediment will not cut across each other.
Science A P E X
Which term describes resistance to change in motion? A. Acceleration B. Inertia C. Net force D. Velocity
Answer:
Inertia
Explanation:
Inertia is the resistance of any physical object to any change in its velocity. This includes changes to the object's speed, or direction of motion.
Elijah goes to sleep while his intestines digest his supper. His intestine is a type of _.
A. voluntary muscle
B. involuntary muscle
C. cardiac muscle
Answer:
B) Involuntary
Explanation:
Intestines are involuntary muscles that help food move through the digestive tract without thinking twice.
Which table correctly describes the functions of the cell structures
listed
HELP ME PLEASE
Answer:
The correct answer is - cell membrane - regulates cell contents.
Explanation:
Various cell structures have different cellular functions in the cells. The major function of the chloroplast is to produce sugar with the help of chlorophyll pigment by trapping the sunlight. The mitochondria perform cellular respiration and convert sugar to energy.
The vacuoles are the cell structure that helps in maintaining water balance and also store nutrients and sometimes help in waste disposal, however, it is not its major function. The cell membrane is the cellular structure and barrier that regulate what cell content will move outside the cell and what will enter.
If a red blood cell is placed in a solution that has a concentration gradient higher than the red blood cell, this type of solution is called --
Answer:
Hypertonic solution
Explanation:
A hypertonic solution is where the concentration outside of the cell is greater when compared to the inside of the cell.
If a red blood cell is placed in a solution that has a concentration gradient higher than the red blood cell, this type of solution is called - hypotonic solution.
Hypotonic solution is the one that contains more concentration as compared to the concentration in the cytoplasm of cells. It means that a solution contains more water as compared to the water within the cell.
molecules move from their higher concentration to their lower concentrationIt is called osmosisWater molecules always try to balance their concentration on both sides.When an animal cell, such as a red blood cell, gets water to the hypotonic solution, it swells.Thus, If a red blood cell is placed in a solution that has a concentration gradient higher than the red blood cell, this type of solution is called - hypotonic solution.
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HELP!!! DONT SEND NO LINK, IT DONT WORK!!!!
Explain why harmful mutations tend to disappear, while beneficial mutations become
widespread.
Answer:
Harmful mutations don't accumulate over time because they reduce the reproductive success of an organism! These mutations would be dead before they can produce any offspring, so there's a slim chance of their genes being passed on. (So it's basically like survival of the fittest, the ones that survive usually have beneficial mutations because that's what keeps them alive lol) Beneficial mutations play a big role in evolution too!
Explanation:
I hope that cleared things up for you! pls give me brainliset <3
Which of these elements is likely to be found in an organic compound?
helium
hydrogen
mercury
tin
Explain the relationship between autotrophs heterotrophs and decomposers In 4 to 5 sentences
Answer:
please give me brainlist and follow
Explanation:
Autotrophs (or producers) make their own food using light or chemical energy. Examples of autotrophs include plants, algae, and some bacteria. ... Animals, fungi, and many bacteria are heterotrophs. Specialized heterotrophs, called decomposers break down dead organic material and wastes.
1. If x and y vary inversely and x=3 when y=8, find y when x=4*
Oy=12
Oy=6
Oy=5
y=2
If x and y vary inversely and x=3 when y=8, then y will be 6 when x=4. Therefore, option (B) is correct.
What is the value of Y?If x and y vary inversely, it means that their product remains constant. Mathematically, we can write this as x * y = k, where k is a constant.
We are given that x = 3 when y = 8. Using the formula above, we can find the value of k:
x * y = k
3 * 8 = k
k = 24
Now we need to find y when x = 4. Again, using the formula above:
x * y = k
4 * y = 24
y = 6
Therefore, the option is Oy=6.
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9. In order to grow two of the exact same plants, a person would reproduce them asexually because the
a) genetic diversity is greater. b).offspring would be genetically identical. c. recessive traits would emerge d). negative traits are suppressed.
Answer:
b).offspring would be genetically identical.
Explanation:
To grow the exact same plants, a person would reproduce asexually because the offspring would be genetically identical. Hence, the correct answer is option b.
What are the different modes of reproduction?There are two different types of reproduction: sexual reproduction and asexual reproduction. In sexual reproduction, the offspring that are formed are slightly different from the parents. This is due to meiotic cell division. Variations in offspring are seen as a result of gene crossing over.
In asexual reproduction, all the offspring are identical to the parents. It is similar to mitosis. Recombination and crossing over do not occur here.So in order to get the exact same plant, this type of reproduction is done by taking a branch from a tree, etc. Others are incorrect statement options.
Hence, to get the exact same plants, a person should go for asexual reproduction, as they produce genetically identical offspring. Option b is the correct answer.
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Which is a component of cell theory?
A: cells come from bacteria
B: cells come from cells
C: cells come from nonliving matter
D: cells come from non-cells
Answer:
B: cells come from cells
Explanation:
A component of the cell theory is that all new cells arise from existing cells
Hope this helped!!!
By what means has the overuse of antibiotics in medicine and agriculture lead to the current global problem of antibiotic resistance?
The overuse of antibiotics significantly increases the bacterial mutation rate, causing more antibiotic-resistance mutations to occur.
Humans develop an immunity to antibiotics, rendering them ineffective.
Indiscriminant use of antibiotics selects for resistant bacteria and increases their numbers.
Antibiotic resistance is a fabricated problem used to sell newer and more expensive antibiotics.
Answer:
Sorry I don't know
Explanation:
Because I think so its not of my class and BTW can I know ur name?
Okk
Question 1 of 6
In which region is there most likely to be a volcano?
Eurasian plate
D
B
North
American
plate
BAD
Pacific
plate
Pacific
plate
African
plate
Indo-
Australian
plate
South
American
plate
Antarctic plate
Answer:
the correct answer is D :)))!!
Label the image: Word Bank: Enzyme, Active Site, Substrate, Induced Fit, Reaction, Product.
Answer:
Label then as per the numbers I have given in the picture
EnzymeActive SiteSubstrateInduced FitReactionProduct20 points
Why is an imbalanced high population of moose on the island seen as a
problem? *
If the moose population continues to grow, they will run out of space on the island and
take over the wolf niche.
If the moose population is unchecked, the local balsam fir population will be
decimated, leaving a barren ecosystem.
It was not seen as a problem; science believes we should let the ecosystem run its
course and dies out.
It was not seen as a problem because the absence of wolves on the island ensured
the future of the ecosystem.
Answer:
If the moose population is unchecked, the local balsam fir population will be decimated, leaving a barren ecosystem.
Explanation:
The imbalanced high population of moose on the island seen as a problem because it decreases the local balsam fir population which is a major food source for the moose in the winter season. If the population of moose is grow higher then the scarcity of food sources occurs and the food source will be eliminated from that ecosystem. If the moose population increases the local balsam fir population will be eliminated from the ecosystem and the land will remain barren or without vegetation.
Humans produce the enzyme amylase. This enzyme breaks down starch, a
complex carbohydrate found in many food sources (e.g. potatoes, breads).
Explain why the human digestive system is unable to use amylase to break down
the complex carbohydrate cellulose, which is also found in some foods (such as
celery).
Explanation:
We lack the enzyme cellulase which is the enzyme required to break down cellulose.
Base on the given information, human can produce the enzyme amylase, but cannot produce the appropriate enzymes that is able to breakdown the beta acetal linkages that exist in cellulose.
Enzymes serves as biological protein, and it is needed in the body to carry out specific functions.
Human posses amylase which made it possible to breaks down starch that is contained in many carbohydrate food that we eat.
We can conclude that human doesn't have the enzymes that that act on complex cellulose contain in found like celery.
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Why aren’t all organisms made of just one cell ?
Explanation:
bio diversity is important in nature
cant have all species doing the same things the same way
help please........
Answer:
for
1.structure of nucleotide:
phosphate :
DNA -nucleic acid
RNA- nucleic acid
Monosaccharides:
DNA- deoxyribose sugar.
RNA- ribose sugar.
Nitrogenous base:
DNA-Adenine ,Guanine ,Cytosine,
Thymine.
RNA-Adenine ,Guanine ,Cytosine, uracil.
2. structure of the molecule:
DNA- double stranded
RNA-Single stranded
3. Functions:
DNA-replicates and stores genetic information
RNA-converts the genetic information contained within DNA to a format used to build proteins, and then moves it to ribosomal protein factories.
Describe how each of Newton’s laws may be observable during a car trip.
If the seat belts on any passengers are fastened, the vehicle will also slow down until everyone is at rest. Additionally, if a car was moving straight when another car struck it, the direction of the car would shift.
What are newton's three law of motions ?According to the first law, until a force acts on an item, it will not alter its motion. According to the second law, an object's force is determined by multiplying its mass by its acceleration. According to the third law, when two objects interact, they exert equal-sized and opposite-direction pressures upon one another.
There's a fourth law , it states that every object tends to remain in the state it is in right now. We refer to this propensity as inertia. Every object tends to remain in the state it is in right now.
Therefore, If the seat belts on any passengers are fastened, the vehicle will also slow down until everyone is at rest (First law) . Additionally, if a car was moving straight when another car struck it, the direction of the car would shift (Third law).
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specialized tissues are made up of ____.
a. organs
b. muscles
c. body systems
d. cells
2. Which structure should you look for in the image to decide if it is a prokaryotic
or a eukaryotic cell?
A. Cell Membrane
B. Cell shape
C. Nucleus
D. DNA
UHM can you help plz i´ll make brainliest
Answer:
sure
Explanation:
whats the question?
The diagram below shows four living organisms. Which statement about the organisms shown is accurate? *
A) They are all single celled and have similar organs.
B) They are all single celled and have identical organs.
C) They are all multicellular and have similar organs.
D) They are all multicellular and have identical organs.
Answer:
D) the are all multicellular and have identical organs.
Explanation:
bcs all the above picture organisms are complex therefore, they will be multicellular for eg: human being we also multicellular.and each of them have identical organ
what are the many forms of energy? how is energy either potential of kinetic
Answer:
The different types of energy include thermal energy, radiant energy, chemical energy, nuclear energy, electrical energy, motion energy, sound energy, elastic energy and gravitational energy.
You need energy to do any work, which is why the ability to do any work is energy. Read that again. Potential and kinetic energy are two forms of energy that can be converted into each other. Potential energy can be converted to kinetic energy and vice versa.
Explanation:
easy questions, easy points
Answer:
Pretty sure they're both A.
Answer:
person above is correct
A
Explanation:
15 points bc I’m broke
Answer:
Add comparative anatomy and it should be right.
Explanation:
With today's technology how else can you disprove the theory spontaneous generation?
Answer:
Religion, philosophy, and science have all wrestled with this question. One of the oldest explanations was the theory of spontaneous generation, which can be
Explanation: