According to the law of exponential growth, bacteria expand in number within a culture. After two hours, there are 125 germs in the culture, and four hours later, there are 350.
How many bacteria are still in the community five hours later?78,686 bacteria After 5 hours, there are 80,686 microorganisms present. 100,000=200e0.02t500=e0.02tln500=0.02tt=ln5000.02≈310.73.
How many bacteria are still present 24 hours later?Every thirty minutes, the bacterium doubles. Two halves of an hour make up one. Thus, a 24-hour period has 48 half-hours. Thus, 248 microorganisms remain in the community after 24 hours. Thus, in 20 minutes, a single bacterium can grow to two. 4 minutes later, and so forth.
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4 1 Your friend, Luis, recently told you that bacteria started MAGICALLY growing on the inside of his shoes causing his feet to smell. You know this is not true based on which part of the cell theory? O cells are the basic units of life all living things are made of cells very few cells reproduce all cells come from pre-existing cells 5 To enter or leave a cell, molecules, like water, must pass through the
Answer:
You have to finish putting the question
Explanation:
Explain how colonial organisms may have evolved into eukaryotic cells.
Answer:
The hypothesis that eukaryotic cells evolved from a symbiotic association of prokaryotes—endosymbiosis—is particularly well supported by studies of mitochondria and chloroplasts, which are thought to have evolved from bacteria living in large cells.
For this structural characteristic, decide if it is a characteristic of DNA, a characteristic of RNA, a characteristic of both or a characteristic of neither? It contains thymine as a base
Answer:it is a characteristic of DNA
Explanation:
Deoxyribonucleic acid(DNA) is made 5 carbon deoxyribose sugar, phosphate group,Nitrogenous base which include purine and pyrimidine. Purine base compose of Adenine and guanine while pyrimidine base compose of Cytosine and thymine.
In Ribonucleic acid (RNA) we have 5 carbon ribose sugar, phosphate group and nitrogenous bases which are purine and pyrimidine. Purine consist of Adenine and guanine while pyrimidine compose of Cytosine and Uracil where thymine in DNA is replaced by Uracil in RNA. This makes Thymine a components of DNA not RNA.
Which organelle converts energy from nutrients?
A. Ribosome
B. Vacuole
C. Nuclues
D. Mitochondria
HELP ME PLEASE
Answer:
ç.
Explanation:
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If you draw a card out of a deck of cards at random,
what is the probability that you will draw a 6 of
hearts?
A. 4:52
B. 1:1
O C. 1:52
O D. 6:52
SUBMIT
Answer: C. 1:52
Explanation:
Which of the following statements is correct?
A. Landfills solved pollution problems caused by waste disposal.
B. Wastewater from cities no longer carries toxic chemicals into waterways.
C. Laws regulating waste disposal have put an end to pollution problems caused by waste.
D. Much of the pollution in our environment is a byproduct of inadequate waste disposal.
Answer:
D
Explanation:
all the others are false
Much of the pollution in our environment is a byproduct of inadequate waste disposal, hence option D is correct.
What are the problems of waste disposal?There are some problems caused by solid waste disposal include: finding suitable landfill locations, groundwater pollution, and soil pollution.
Landfills have not solved pollution problems caused by waste disposal, because it creates soil pollution in the area where waste is disposed of, which decreases the fertility of the soil.
Wastewater from cities carries toxic chemicals into waterways, which is the major cause of water pollution in that area. There are some laws that regulate pollution, but not all the person follows them.
Therefore, waste disposal is the major factor of pollution.
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Mendel found out everything about genetics and we have not learned anything new about genetics in the last 160+ years. true or false?
Answer:
false
Explanation:
there has been many advancements in genetics ever since Mendel's discoveries
The diversity of dogs today can be attributed to selective breeding,
O True
O False
What would happen within a few months if all de composers on earth disappeared overnight I’ll leave a picture here
What do you think accounts for the higher risk of earthquakes in Los Angeles than in Chicago?
My bird recently flew into a window and in bleeding between his nostrils. The wound keeps bleeding, and we can't afford a Vet visit right now, what should I do?
Answer:
he finna die
Explanation:
Answer:
OMG are the wings okay
wrap the bird up in an bandage cloth if you have any!
Explanation:
2. People with diabetes must give themselves insulin injections after they eat - how does
this help them?
Explanation:
for the insulin to be able to act on the food particles. Providing the body with the correct proportion of energy so that the remainder could be strored for a later use
what are the energy-storing compounds in photosynthesis?
Answer:
Hi, Plants store their energy in the form of starch, which is a complex carbohydrate that can be broken down into a simple carbohydrate (glucose) for the plant to use for energy. Plant cells store starch in storage organelles as all cells do. (vacuoles).
Answer:
Photosynthesis is the process by which organisms that contain the pigment chlorophyll convert light energy into chemical energy which can be stored in the molecular bonds of organic molecules (e.g., sugars). Photosynthesis powers almost all trophic chains and food webs on the Earth.
Some animals hunt by _________, or sneaking up on, their prey. M is the second letter.
Answer:
Ambush
Explanation:
Ambush is a sneaky attack/Surprise attack
names for mutant animals (like fantasy help pls)
Answer:
‘Henry,’ The Hexapus
‘Octogoat,’ The Eight-Legged Goat
Faith,’ The Two-Legged Dog
We,’ The Two-Headed Albino Rat Snake
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A cell is placed into a solution and is left sitting for 24 hours. When you come back you notice the cell is exactly the same size it was beforehand. Which type of solution was the cell sitting in? Explain
Answer:
Isotonic Solution
Explanation:
There are commonly three types of solutions:
Hypertonic solution = the concentration of solute is greater than in the cellHypotonic solution = the concentration of solute is less than in the cellIsotonic solution= the concentration of solution and cell is same.So, if the cell was in any other solution, it would have been burst or it would shrink. but nothing changed because it was in a solution where outside environment is similar to the internal environment
some consumers such as many flying insects need large amounts of energy to grow and move from one place to another. how do consumers get energy to function?
Why are silent mutations possible for some of the amino acids?
Answer:
That's possible because proteins are encoded by "triplets" of nucleotides, each responsible for adding a particular amino acid to the protein chain. A change in one nucleotide, however, doesn't always change the triplet's meaning; the mutated triplet may still add the same amino acid.
Explanation:
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When yellow guinea pigs (Y) are crossed with white guinea pigs (W), cream-colored offspring (YW) are produced. Can a pet-store owner mate two cream-colored guinea pigs and get a white guinea pig?
Answer:
It is possible.
Apply Concepts Eventually, most people with Alzheimer's disease lose the ability to recognize common objects. Explain which lobe is affected at this point in the disease
Answer:
The right temporal lobe
Explanation:
The cerebral cortex of the brain has two sections known as hemispheres, and each hemisphere can be divided into four lobes: frontal, parietal, temporal and occipital. Alzheimer's disease is the most common cause of dementia, which is characterized by the damage of the temporal lobe. Alzheimer’s disease usually initiates in the hippocampus, which is a structure inside each temporal lobe. The temporal lobes are involved in different neuronal functions: object recognition, face recognition, perception, memory, language, emotions, etc. The right temporal lobe is mainly involved in processing visual information (i.e., face recognition, object recognition, familiar recognition).
What is the water table?
Answer:
C: The top of a saturated aquifer
Explanation:
The water table is the upper surface of the zone of saturation. This zone of saturation is where pores and fractures of the ground get saturated with water. It can also be simply explained as, the upper level, below which the ground is saturated.
Due to sun damage, a skin cell acquired a mutation in DNA sequence in a gene essential for cell survival. This mutation, however, was not passed on to the offspring of the organism. Which explanation best accounts for this observation?
Answer:
Only mutations in reproductive cells can be passed from parents to offspring.
Explanation:
Scott was looking at the results of a cross between red and white flowers. Which is the most likely result of a cross that demonstrates incomplete dominance?
Answer:50 red flowers
Explanation:
The term that describes the allele that determines the phenotype of an individual organism when two different copies are present in the genotype is?
A. Recessive
B. Nucleus
C. Dominant
D. Eukaryotic
Answer:
A. Recessive
Explanation:
Only answers A and C can be used to describe an allele, so B and D can't be it. If the allele was dominant, only one copy would be necessary for the phenotype to be expressed (ex. heterzygous green peas are still green, even though they carry a yellow allele). Therefore, since 2 copies are present for this phenotype, it must be recessive.
What did you include in your response? Check all that apply Longitudinal and transverse waves are mechanical waves, so they both carry energy through particles of matter. Longitudinal waves are waves that transfer energy parallel to the direction of wave motion. Transverse waves are waves that transfer energy perpendicular to the direction of wave motion.
Answer:
Longitudinal waves are waves that transfer energy parallel to the direction of wave motion.
Transverse waves are waves that transfer energy perpendicular to the direction of wave motion.
Explanation:
First of all, transverse waves are not mechanical waves at all. Longitudinal waves are mechanical waves.
Longitudinal waves are waves that transfer energy parallel to the direction of wave motion. A typical example of longitudinal waves is wave on a spiral spring.
Transverse waves are waves that transfer energy perpendicular to the direction of wave motion. A typical example of a transverse wave is light wave and other electromagnetic waves.
PLEASE HELP
Which of the following increases genetic variation by forming entirely new alleles?
Natural selection
Genetic drift
Mutation
Gene flow
Answer:
Mutation, forms entirely new alleles, the other answer choices change preexisting allele distribution within the population.
Answer:
mutation should be the answer
Where does fertilization take place?
A. ovary
B. style
Answer:
A. ovary
Explanation:
It takes place in a fallopian tube that links an ovary to the uterus.
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What is the main body system affected from sickle cell anemia?
Answer choices:
Digestive System
Nervous system
Circulatory System
Respiratory system
Muscular System
Skeletal System
Answer:
Circulatory system
Explanation:
It flows through your blood and it can affect your veins,arteries,heart,ect
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How could the Galapagos finches have evolved into 13 different species ? (2-3 sentences)
Please help thanks
Answer:
they adapted to their environment, some have sharper beaks which are used to crack nuts, when they were introduced to the new environment they evolve to the new surroundings in order to survive. therefore, seeing as though there is 13 different species, the Galapagos islands have many different food sources, and ecosystems.
Explanation:
What are some potential
drawbacks of genetically-
modifying organisms?
Answer:
1. Allergic reactions. Some people believe that GMO foods have more potential to trigger allergic reactions.
2. Cancer.
3. Antibacterial resistance.
4. Outcrossing.
Explanation: