Answers
Answer:
Explanation:
6. He was investigating a mold growing in Staphylococcus culture dishes, that may have been killing bacteria.
7. He hypothesized that the mold was producing a chemical that killed the bacteria.
8. He tested the hypothesis by growing the mold in a broth then transferring it into a bacteria culture.
9. After putting mold into a culture with bacteria in it, the bacteria then died.
10. Antibiotics
Related Questions
which will most likely result in a negative growth rate in the human population of a country
Answers
Answer:
The death rate is higher than the birth rate. The birth rate is higher than the death rate.
Explanation:
Darwin's experiments are just one way to study phototropism. A student wants to investigate the effects of phototropism in bean plants. She places a light source directly above one plant, at a forty‐five degree angle to another, and at a ninety‐degree angle from the third.
What is her independent variable?
What is a hypothesis she might write for her experiment?
Answers
Answer:
Her independent variable is the light source and her hypothesis is what YOU think might happen
Answer:
The independent variable is what is being changed or altered in the experiment (light position), the dependant variable is what is altered or changed by the independent variable (plant).
Explanation:
Consider what is being changed in this experiment to investigate the effects? The plant itself is not changed by the experiment but the positioning of the light source is. That is your independent variable. The plant may change as a result of the independent variable but isn't being altered or changed as part of the method (dependent).
What is a hypothesis she might write?
Consider a hypothesis as a prediction. Researchers come up with their hypothesis based on the information they already know. So to write your hypothesis think about what you already know about phototropism. What do you think will happen to the plant in relation to the positioning of the lamp? Will the plant not move? Will it bend or move to face the lamp?
Hope this helps.
Explain in simple molecular terms what would have to be done to a plant oil to transform it to a trans fat?
Answers
What is apical meristematic tissue? And its function
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Answer:
Apical meristematic tissue and its function the apical meristem, also known as the “growing tip,” is an undifferentiated meristematic tissue found in the buds and growing tips of roots in plants. Its main function is to trigger the growth of new cells in young seedlings at the tips of roots and shoots and forming buds.
I hope my answer will help you,God blessed youWhich type(s) of muscle tissue cells are organized into sarcomeres?
skeletal
cardiac
smooth
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Which of the following is true about elements?
A.
Elements combine to form compounds in nonliving substances but not in organisms.
B.
Elements combine to form compounds in organisms but not in nonliving substances.
C.
Elements do not combine to form compounds.
D.
Elements combine to form compounds in organisms and nonliving substances.
Answers
Answer:
I believe the answer is D or B.
Explanation:
Answer:
D
Explanation:
study island
All plants are unicellular organisms
Answers
Answer:
All true plants are regarded as multicellular organisms since they consist of more than a single cell.
Answer:
False
Explanation:
Describe the use of enzyme for testing glucose in the urine of diabetics
Answers
Answer:
If too much glucose gets into the blood, the extra glucose will be eliminated through your urine. A urine glucose test can be used to help determine if blood glucose levels are too high, which may be a sign of diabetes.
1. What is a predator and what is a prey? 2. How do they impact each other both positively and negatively, use clear details/examples to explain
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Answer:
A predator is usually an animal who mostly eats and it's not eaten by other organisms. A prey is are organisms who are eaten by other animals.
Explanation:
PLEASE ANSWER: Is oceanography a hard class to take in high school?
Answers
Answer:
There is quite a bit of work but if you are willing to do it and pay attention in class then it's easy. my teacher makes the class a lot of fun.
Explanation:
Answer:
it's pretty frustrating, mainly because there's an overwhelming amount of work, unless that's just my school but other than that its pretty easy, you just have to memorize a lot of stuff.
Explanation:
Who am I? I have a tail. I eat other animals. I have no hair on my body.
Answers
Answer:
A snake?
Explanation:
Answer:
A Lizard?
Explanation:
It has a tail, has no hair on the body and eats other animals.
What do polymers do
Answers
Explanation:
Organic polymers play a crucial role in living things ,providing basic structural materials and particpiating in vital life process.for example,the solid parts of all plant are ,made up of polymers
The most prevalent environmental threat to human populations caused by landfills is the contamination of surface and ground water. So, most modern landfills in the U.S. are designed to protect against hazardous chemicals escaping into the surrounding soil. What technology makes these protection systems possible?
Answers
Answer: plastics technology
Explanation:
Classify each type of cell transport.
Answers
Answer:
Diffusion is a passive process of transport.
Endocytosis is a type of active transport
exocytosis are active transport processes.
osmosis a form or passive transport
Facilitated diffusion is a type of passive transport
Hope this helps!!!!
Classifying each type of cell transport :
Diffusion : Passive transport Endocytosis : Active transportExocytosis : Active transportFacilitated diffusion : Passive transport Osmosis : Passive transportA passive transport system is the movement of solute in solution across regions of different electrochemical potentials on either side of a cell membrane ( i.e. from higher concentration to lower concentration) examples include : diffusion, osmosis and facilitated diffusion. while
Active transport system is the movement of molecules across a cell membrane by the application of cellular energy and not the difference in electrochemical potential. examples include Endocytosis and exocytosis
Hence we can conclude that Classifying each type of cell transport :Diffusion ; Passive transport. Endocytosis : Active transport. Exocytosis : Active transport. Facilitated diffusion : Passive transport. Osmosis : Passive transport .
Learn more : https://brainly.com/question/14013340
Electromagnetic radiation with medium wavelengths is called
????
Answers
Answer:
visible light if is medium
Which of the following is typically with associated with acid precipitation over a body of water?
Answers
Answer:
kk
Explanation:
A decrease in pH. Acids are proton donors which means they lower the pH of when placed into solution. pH=-log[hydronium]. I hope this helps. Let me know in the comments of anything was unclear.
How do biotechnologists help with modern mining methods?
A)
They evaluate the microbes contained in minerals to determine the grade of the ore.
B)
They devise methods to kill the microbes in minerals to make the ore more profitable.
C)
They look for ways to genetically engineer microbes to aid in obtaining specific minerals.
D)
They propose ways to genetically engineer microbes to reduce gases created by mining.
Answers
Answer:
C
Explanation:
Microbial mining is when you use microbes to help you obtain specific minerals. Biotechnologists help with this.
All eukaryotic cells contain at least one Golgi complex, typically located in the cytoplasm and near the endoplasmic reticulum.
Which of the following best describes a process that occurs within the Golgi complex?
Answers
Answer: Enzymatic modification of newly synthesized integral membrane proteins
Explanation: got it right for AP Bio.
The correct answer that describes the process that occurs within the Golgi complex is the enzymatic modification of newly synthesized integral membrane proteins.
Once protein is synthesized, they undergo folding and repackaging within the endoplasmic reticulum before they are transported to the Golgi apparatus/complex.
Within the Golgi complex, the protein is modified enzymatically and encased in vesicles. It is then transported to the cell membrane where they are utilized as integral protein.
So, basically, the statement that best describes the process that occurs within the Golgi complex is the enzymatic modification of newly synthesized integral membrane proteins.
More about the Golgi complex can be found here: https://brainly.com/question/13274076
Select all of the following that are a result of heating up a solution?
Molecules will move faster
Molecules will slow down
Molecular movement will not change
More collisions will occur between molecules
Answers
Answer:
a
Explanation:
When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space.
The results of heating up a solution are:
Molecules will move faster
More collisions will occur between molecules
According to the kinetic molecular theory, when a solution is heated up:
The temperature of the solution risesThe attractive forces binding the molecules weakensThe speed of the molecules increases. This means that the molecules move faster than before The rate of collision between the molecules increases. This is because of an increase in the Kinetic Energy possessed by the molecules as the temperature risesTherefore, among the given options, the results of heating up a solution are:
Molecules will move faster
More collisions will occur between molecules
Learn more here: https://brainly.com/question/134712
Which describes sexual reproduction, and not asexual reproduction? a. produces offspring that are genetically identical with a single parent b. produces offspring that inherit half of their genetic information from each parent c. ensures all members of a population have equal fitness in their environment d. can occur very quickly, allowing a population to expand into new territory
Answers
Answer:
b
Explanation:
what is most likely to result when a mutation affects a DNA sequence?
Answers
Answer:
Mutations can occur during DNA replication if errors are made and not corrected in time. ... However, mutation can also disrupt normal gene activity and cause diseases, like cancer. Cancer is the most common human genetic disease; it is caused by mutations occurring in a number of growth-controlling genes.
Answer:
The amino acid sequence will be changed and a different protein will be formed.
Explanation:
I just got the answer wrong but it showed me the right answer now.
If a hurricane was to hit Jacksonville during which Moon phase would
we most likely experience the most damage? Describe the factors that
are involved in order to develop an answer.
Answers
Answer:
I think it would be a "Waxing Crescent"
Explanation: I said this because this is the Moon phase that we see almost everyday; if I'm correct.
Let me know if it's right or wrong...
Select the correct answer from each drop-down menu.
A researcher conducts an experiment on the secretion of a particular hormone in mice. Scientists inject mice with a substance that
stimulates the production of the hormone. The scientists then test the levels of hormones produced by the mice. The tool used to
measure the hormones consistently detects the levels at 10 points lower than the a (
Answers
Answer:
The correct answer is - accurate.
Explanation:
Systematic measurement errors take place when there is a consistent inaccuracy found in the result of the measurement. In the given case here is consistent 10 points lower than the actual value of hormones produced in the mice. the tool that is measuring the level of the hormones in the mice is showing systematic error and measurements are not accurate.
Thus, the correct answer is - accurate.
Which of the following describes a chemical change? *
Clear liquids mix, producing a cloudy liquid and a yellow powder.
Silver coins are melted down and shaped into a solid brick.
Salt is added to a pot of hot water, and the water's boiling point changes.
O
An apple is chopped into eight slices.
Answers
Answer:the first option, clear liquids mix, producing a cloudy liquid and a yellow powder
hope this helps :)
Explanation:
What two properties of life can be connected to each other? Explain how
Answers
Answer:
Explanation:
Properties of Life. All groups of living organisms share several key characteristics or functions: order, sensitivity or response to stimuli, reproduction, adaptation, growth and development, regulation, homeostasis, and energy processing. When viewed together, these eight characteristics serve to define life.
Which organelle in this image is the packaging unit of the cell that packages proteins for transfer throughout the cell?
1
8
6
9
Answers
Cohesion produces _____ tension as the water molecules hold tightly together.
Answers
Which statement best defines a protist? an organism that reproduces by spores and feeds on decaying matter a eukaryote that is either animal-like, plant-like, or fungus-like a foot-like extension that is used for eating and movement a long, whip-like extension that is used for movement
Answers
Answer:
B. A eukaryotic that is either animal-like, plant-like, or fungus-like.
Explanation:
A protist is best defined as an eukaryote that is either animal-like, plant-like, or fungus-like.
WHAT IS A PROTIST?A protist is an eukaryotic i.e. possess a membrane-bound nucleus organism that belongs to the kingdom Protista.
The kingdom Protista is different from all other kingdoms such as;
FungiAnimaliaPlantaeThis means that an organism classified as a protist can be defined as an eukaryote that is either animal-like, plant-like, or fungus-like.
Learn more about protist at: https://brainly.com/question/5186929
oxygen gas is made of molecules like the one this model shows, which chemical formula, most likely describes oxygen gas?
A.O100
B.OO
C.Og
D.O2
Answers
Answer:D
Explanation:
The type of water pollution that gets moved into a body of water coming from many unseen sources.
Non-point source pollution
Point source pollution