Which best describes the development of penicillin?
A.It was originally discovered as a product produced by plants
B.It was originally discovered from mold growing on petri dishes.
C.It was originally discovered to be ineffective
D. It was originally discovered to treat viral conditions.
Answer:
There is a hack in forms that forms gives u the answer hold ctrl + u, and scrool to the bottom he read the part with the question and there will be an answer.
Mark as brainliest if im right good luck!!
If this question is a Form if not sorry for waisting your question!!
Answer:
The answer is B. Penicillin is made up of fungi and bacteria and was the first antibiotic.
Which organisms have groups of cells arranged into organs?
O A. Unicellular
O B. Multicellular
O C. Prokaryotic
O D. Bacterial
Compare and contrast gradualism and punctuated equilibrium. Provide at least one comparison and one difference in your answer. You may use examples for each if that helps you with answering the question.
Answer:
Gradualism and punctuated equilibrium both are the process of evolution of species over time. However, the gradualism process involves the evolution that occurred slowly, occurring in small periodic changes in the gene pool over a long period of time. Whereas Punctuated equilibrium takes place there are longer periods of apparent stasis interrupted by the sudden change.
They both help in finding the relative change in evolution rate and assist in the study of the anatomical changes occurred during the evolution in different kind of animals or organisms.
What is the important function of sweating
Answer:
Sweating helps cool down the body. Water is released through glands in the skin, evaporates off the skin and the body is cooled. During exercise, muscles heat up more, so more sweat is needed.
Explanation:
I am the Bio-molecule responsible for storing
unused energy and can be used by living
organisms as long term, slow energy.
Answer:
It's LIPID
Explanation:
storing unused energy. Long time storage of energy.
5. Design an experiment that would help you collect the data you have identified in question four. Identify your independent variable(s), dependent variable(s), treatments, and control. (5 points possible)
Answer:
independent variable - x , dependent variable - y
Explanation:
the indepent variable is something that is stable , it does not change & the dependent variable is that variable that depends on the independent variable
Design an experiment that would help you collect the data you have identified in question four independent variable - x , dependent variable - y.
What is independent variable?The indepent variable is something that is stable , it does not change & the dependent variable is that variable that depends on the independent variable.
The experimenter's chosen variable or variables are considered independent. The anticipated "cause" will be this manipulation. The independent variable's value determines how much the dependent variable is worth.
The result of the cause will be this (if the manipulation succeeds). One group of volunteers receives a medication, while the other receives a placebo. Cancers diminish in the medication group but they do not in the control (placebo) group.
Therefore, Design an experiment that would help you collect the data you have identified in question four independent variable - x , dependent variable - y.
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What is the main cause of a human-created mass extinction?
Answer:
d
Explanation:
an increase in the human population
Starting with spore dispersal, and identify adaptations in the life cycle of the bryophyte for living in a terrestrial environment (ie, in air, without water surrounding the plant body). What are new stresses associated with living on land, and what morphological or physiological features did the first land plants have to evolve to cope with these stresses
Answer:
Stresses such as lack of nutrients, space, competition and water availability.
Explanation:
Lack of nutrients, space, competition and water availability are the stresses that the bryophyte can experience by living on land. The morphological or physiological features such as lowering transpiration rate by stomata, attain specialized structures to collect sunlight and fulfill water requirement by absorbing water from the air if no water is available in the soil etc are the features that the plant has to attain to cope with these stresses.
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write 5 FACTD ABOUT PEDIGREES
what is the full meaning of BMW
Answer:
Bayerische Motoren Werke
an organisms habitat must provide all of the following except
Answer: Predators (trust me)
Answer:
except what? there are no possible answer
Explanation: Please give possible answers
Explain the process used to make genetically modified foods.
Answer:
squrit some stuff into food
Explanation:
Answer:
new DNA is transferred into plant cells and the cells are then grown in tissue culture where they develop into plants and the seeds produced by these plants will inherit the new DNA..so
this process continue.In this way process used to make genetically modified foods.
Why don’t eclipses occur during any other moon phases besides the new and full moon?
Human skin comes in a variety of
shades, from pinkish white to dark
brown. How did this variation arise?
Answer:
Based on everything that you have learned so far, provide an explanation for how the different shades of skin color from pinkish white to dark brown evolved throughout human history. Darker skin colors evolved because they provided increased fitness in early human populations living in equatorial Africa.
Explanation:
What is a trace fossil?
*USE YOUR OWN ANSWER*
Answer:
Its basically traces of an animal and not the actual animal. For example footprints.
Explanation:
which cell parts are found in both Eukaryotic and prokaryotic cells?
anyone want to help me?
Answer:
B) Cell Membrane | ]DNA
Ribosomes | Cytoplasm
Explanation:
I took the test and it was right
What can the presence of different types of fossils tell us about how this environment changed over time?
a. This environment has been an ocean from long ago through more recent times.
b. This environment has slowly changed from being an ocean to a swamp to a forest.
c. This environment has gotten much cooler over the period of time represented by these fossils.
d. This environment has become covered with water.
Answer:
B. the Environment has slowly changed from being an Ocean to a Swamp to a Forest.
Explanation:
makes the most sence when comparing it to the picture
Answer:
b. This environment has slowly changed from being an ocean to a swamp to a forest.
Explanation:
As we can see, there are water creatures in the first picture, then there were frogs and dragonflies, which are commonly found in swamps (crabs too). We see tree leaves and frogs in the last picture, which are common in forests.
What are the side effects of the flu vaccine shot
Answer:
Flu vaccine side effects are generally mild and go away on their own within a few days. Some side effects that may occur from a flu shot include soreness, redness, and/or swelling where the shot was given, headache (low grade), fever, nausea, muscle aches, and fatigue. But this overall depends on the person who takes it. Not everyone experiences these symptoms
Explanation:
Hope this helps!
How does the skeletal system interact with the nervous system?
A
the nervous system supplies the blood and oxygen to developing bones
B
the nervous system supplies nutrients and minerals to developing bones
C
the skeletal system controls the messages sent to the brain and spinal cord
D
the skeletal system provides protection for the brain and spinal cord
Answer:
The skeletal muscles connect to the bones and work with connective tissue at the joints to allow for movement. The muscles connect to the nervous system and allow initiation of movement through nerve signals to and from the brain. The bones and muscles are supported by connective tissue, which plays an integral role in structural support.
DNA strands are antiparallel. What does that mean?
-opposite and parallel
-complete opposites
-mirror image of each other
-parallel of each other
Explanation:
In biochemistry, two biopolymers are antiparallel if they run parallel to each other but with opposite directionality (alignments). An example is the two complementary strands of a DNA double helix, which run in opposite directions alongside each other.
Answer:
opposites and parallel
Explanation:
A population of deer lives in Canada. Over 50 years, the size of the deer
population decreased. What best explains the decrease in the size of the deer
population?
Answer:hunting
Explanation: They can lose population .
Fewer deer were born than died best explains the decrease in the size of the deer population.
What is population?In particular geographical area, when group organism of same particular species inhibit, and they are capable of interbreeding, refers to as population.
This field is important in conservation biology, especially in the development of population survival analyzes that let us predict the long-term likeliness of species remaining in particular habitat parts. Population ecology Although it is a branch of biology, it presents interesting problems for mathematicians and statisticians studying population dynamics.
So, when population size of deer decreased over 50 years, we can say that deer populations are declining due to death, animals leaving the area or dispersal (migration).
Population change = (births + immigration) - (deaths + immigration).
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The image illustrates a building with a green roof - a roof that is covered in
living vegetation. Why would a society use this sustainable practice?
A. It reduces the amount of carbon dioxide taken up in an area.
B. It replaces invasive nonnative plants with native plants.
C. It replaces natural wilderness with more pavement.
D. It reduces the building's energy costs for heating and cooling,
Answer:The image illustrates a building with a green roof - a roof that is covered in living vegetation . What is a goal of this sustainable practice for societal development ?
Explanation:
A society uses this sustainable practice because it reduces the amount of carbon dioxide in an area. So, the correct option is (A).
What is Sustainable practice?Sustainable practices are described as supporting ecological, human and economic health and vitality. Sustainability recognizes which resources are limited. It should be used conservatively and wisely which take into account long-term priorities and consequences of the way resources are used.
Reduce, reuse and recycle are the basic principles of wise use of resource. Natural resources are conserved and protected by deploying these principals by reducing landfill waste, energy consumption and pollution.
Some sustainable practices are:
By reusing paper and plastic bags for shoppingBy opting for paperless documentsBy avoiding disposable kitchen itemsThus, a society uses this sustainable practice because it reduces the amount of carbon dioxide in an area. So, the correct option is (A).
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Blackcap birds (Sylvia atricapilla) migrate out of Germany before wintertime. Prior to the 1960s, all members of a particular blackcap population flew to Spain, which had an abundant natural food source. Now, some members of the same blackcap population fly to the United Kingdom, where food placed in feeders by humans is abundant. The blackcaps return to the same forests in Germany to nest during the breeding season.
Some blackcaps that migrate to the United Kingdom have become distinguishable by certain physical and behavioral traits from blackcaps that migrate to Spain. Which of the following best predicts the effect on the blackcap population if humans in the United Kingdom continue to place food in feeders during the winter?
A- The blackcaps that migrate to Spain will selectively mate with the blackcaps that migrate to the United Kingdom, resulting in increased genetic variation in the blackcap population.
B- The blackcaps that migrate to the United Kingdom will become reproductively isolated from the blackcaps that migrate to Spain, resulting in speciation in the blackcap population.
C- The blackcaps in Spain and the United Kingdom will migrate to other geographical locations in search of potential mating partners, resulting in a smaller blackcap population in Germany.
D- The blackcaps will begin nesting at their wintering sites in Spain or the United Kingdom, resulting in a larger blackcap population migrating back to Germany after the breeding season has ended.
Answer:
D- The blackcaps will begin nesting at their wintering sites in Spain or the United Kingdom, resulting in a larger blackcap population migrating back to Germany after the breeding season has ended.
Explanation:
By the inhabitants of Spain and the United Kingdom placing feeders out for the blackcaps, the birds in their nesting sites during the winter will have food to eat, meaning a bigger population of the Blackcaps when they return to their main home in Germany.
This best predicts the effect on the blackcap population if humans in the United Kingdom continue to place food in feeders during the winter.
Imagine a dog steps on a pin and pulls its foot away. Look at the reflex arc of this scenario below.
Which of the following statements best describes the image?
O The brown circle A shows neurotransmitters being released, and the blue circle B shows neurotransmitters being
absorbed.
The brown circle A is an effector, and the blue circle B is a receptor.
The brown circle A is a receptor, and the blue circle B is an effector.
The brown circle A shows neurotransmitters being absorbed, and the blue circle B shows neurotransmitters being
released.
Answer:
The brown circle A is a receptor, and the blue circle B is an effector.
Explanation:
The brown circle indicates a receptor whereas the blue circle is an effector because brown circle have sensory cells which receives the sensation due to pins into the foot and this information is taken to the central nervous system through sensory neurons while on the other hand, blue circle is an effector to which instructions comes from the central nervous system through motor neurons and as a result the dog pulls away its foot from the region where pin is placed.
Answer:
C. The brown circle A is a receptor, and the blue circle B is an effector.
Explanation:
Correct on Edge 2021!
An Autotroph get energy from the sun, not from food.
Tue
False
Answer:
True
Explanation:
Increased carbon dioxide in the atmosphere leads to increased absorption of
Greenhouse Gases
Solar Radiation
Water Vapor
Volcanic ash
Answer:
Solar Radiation
Explanation:
Increased carbon dioxide in the atmosphere leads to increased absorption of Solar Radiation.
How is the small intestine designed to absorb digested food ?
Answer:
Small intestine is designed to more and more area for absorption of digested food and transfer into the blood for circulation throughout the body. The inner lining of small intestine has a large number of finger-like projections called villi. These villi provide a large surface area for absorption of food.
Explanation:
Hope this helps!
Have a good day or night!
➜ The small intestine is the main region for the absorption of digested food. The inner lining of small intestine has millions of tiny finger-like projections called villi. The presence of villi gives the inner walls of the small intestine a very large surface area for absorption of digested food. The villi are richly supplied with blood vessels which take the absorbed food to each and every cell of the body.
What does string theory try to prove?
Provide 1 simple and 1 complicated explanation.
Answer:String theory hopes to be a literal theory of everything, a single unifying framework that explains all the variety and richness that we see in the cosmosand in our particle colliders, from the way gravity behaves to whatever the heck dark energy is to why electrons have the mass that they do.,
Explanation:
Archaea live everywhere
on
Earth, including extreme environments.
True
False
Answer:
True :)
Explanation:
Many Archaea are specialized to live in extreme environments. Just three types are described here. Archaea are now known to live just about everywhere on Earth. They are particularly numerous in the ocean.
What are the "energy factories" within a plant cell?