Bacteriophages are a special class of viruses that infect and spread only within bacteria.
Bacterium refers to bacteria, while "phage" means to eat or devour. Together, these two words form the term "bacteriophage". Highly specialized viruses called bacteriophages attach to the surface of bacterial cells and introduce their genetic material into the host bacterium.
Once the bacteriophage's genetic material enters the bacterial machinery, it causes it to make multiple copies of the phage particles. The host bacterium is eventually killed, and freshly produced phages are freed to infect additional bacterial cells. Nature is full of bacteriophages, which are important for managing bacterial populations and building microbial communities.
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A student wants to know the effect a mutation might have on a species survival. The change causes a rabbit to have mottled brown fur. The student runs a computer simulation for ten generations.What possible conclusions can you draw
Answer: A. Evolution occurred because the allele frequency changed over time.
C. The rabbits with mottled brown fur have a selective advantage that gives them more camouflage from predators.
E. The mutation had a positive effect, allowing those rabbits with the mottled brown fur to survive and reproduce better than those with the brown or white fur
Explanation:
Based on the information given, the possible conclusion that can be drawn from the options given are:
A. Evolution occurred because the allele frequency changed over time.
C. The rabbits with mottled brown fur have a selective advantage that gives them more camouflage from predators.
E. The mutation had a positive effect, allowing those rabbits with the mottled brown fur to survive and reproduce better than those with the brown or white fur.
Therefore, the correct options are A, C and E.
which part of the brain coordinates breathing and heart rate
Answer:
c. Brainstem
Explanation:
The brain stem sits beneath your cerebrum in front of your cerebellum. It connects the brain to the spinal cord and controls automatic functions such as breathing, digestion, heart rate and blood pressure.
Hope this helps.
Answer:
option c : brainstem
Explanation:
The brain stem connects the brain to the spinal cord and controls automatic functions such as breathing, digestion, heart rate and blood pressure.
حل کیش بشع الانقسام المنضد الأمشاج أحادية المجموعة
الكروموسومية
Answer:
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Explanation:
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Explain how D.N.A relates to inheritance
What Is DNA's Role in Inheritance? DNA is the genetic information used to make proteins, and it contains the hereditary traits of organisms. ... You are who you are because of your DNA; the smallest change to it would make you a completely different person.
What word is used to describe plant cells placed in a hypotonic solution?
Answer:
The answer is Plasmolysis
The word that is used to describe plant cells placed in a hypotonic solution is known as Turgidity.
What is a Hypotonic solution?A Hypotonic solution may be defined as a type of solution that significantly has osmotic pressure lower than that of another solution to which it is compared. This type of solution normally contains a lower amount of solute.
According to the context of this question, when a plant cell is placed in a hypotonic solution, water will flow through it by the process of osmosis from the solution into the plant cell. This leads to cause the cell to expand or swell. But as the cell wall of the plant is very rigid, it keeps the cell from bursting.
Therefore, the word that is used to describe plant cells placed in a hypotonic solution is known as Turgidity.
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Why is meiosis important for organisms?
Answer:
Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes. Meiosis also produces genetic variation by way of the process of recombination.
Answer:
A) It allows for genetic variation among organisms
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Suppose the total area of a habitat is 200m2 and 1m2 quadrant is placed in randomly selected areas . If the average number of plans species in 20 randomly selected area of the habitat is 2 , what will be the number of plant species of the habitat .
Answer:
400 plant species
Explanation:
The average number of species in 20 randomly selected area = 2
Size of quadrat = 1 m2
Total size of habitat = 200 m2
Population density per 1 m2 = 2
if 2 plant species occupy 1 m2 of the habitat area, then the number of plants that will occupy 200 m2 equals:
2 x 200 = 400 plant species
Which process produces four genetically different gamete cells?
A. Mitosis
B. Meiosis
Answer:
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction.
Answer:
B. Meiosis
Explanation:
Specifically, meiosis creates new combinations of genetic material in each of the four daughter cells. These new combinations result from the exchange of DNA between paired chromosomes. Such exchange means that the gametes produced through meiosis exhibit an amazing range of genetic variation.
Speciation occurs when:
a. two populations become geographically isolated
b. enough differences accumulate between two populations that they can no longer interbreed
C. gene mutations accumulate
d. all of the above
Answer:
D. all of the above
Explanation:
Answer:
I believe that it is C.
Explanation:
please tell me if I'm wrong
What process is shown in the diagram below?
Answer:
B Polymerase
Explanation:
Answer:
D. Use of restrictive enzymes
Explanation:
Just took the quiz
Describe the interaction between the digestive and circulatory system of the earthworm
The earthworm has a closed circulatory system which runs through the
length of their bodies. The earthworm possesses blood vessels which aids
circulation of blood and nutrients to other parts of the body.
There are vessels in the intestine of earthworms which aid absorption and
transportation of digested food and nutrients to parts of its body.
The closed circulatory system in which blood vessels are present in all the
parts of the body also aids the transport of blood and other vital nutrients
to other parts of the body for survival.
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You have isolated two known bacteria with slightly different DNA patterns and have placed them in an environment with some unknown elements. After some time, you observe that cell No. 1 now has a different DNA pattern. Your goal is now to find out whether this new DNA was obtained by the cell from transformation or conjugation (and you know that it can only be from one of these two methods). Which of the following would be valid to investigate?
Test cell No. 1 for excised DNA that has been relocated
Test for foreign, similar DNA in the environment
Test for the presence of bacteriophages in the environment
Test for the presence of DNA patterns from cell No. 2 in cell No. 1
1 and 3
1 and 4
1, 2, and 4
2 and 4
Explanation: foreign, similar DNA in the environment
The idea that each living species descended from other species is called
Answer:
natural selection.
Explanation:
Darwin defined evolution as "descent with modification," the idea that species change over time, give rise to new species, and share a common ancestor. The mechanism that Darwin proposed for evolution is natural selection.
why hasn't nasa sent a spacecraft to every planet
The lesson question for this lab is "what is the effect of the type of food available on the frequency os different types of bird breaks?" The lab procedure you just studied should help you address this question. Well it? Explain.
Answer:
The food type changes in a given environment, then the amount of each type of bird beak will changes as birds with beaks more suited to the available food will consume more successfully over time. The independent variable of the lab is the type of food that is available to the birds.
What type of adaptation is shown in Figure 15-2?
A. mimicry
B. camouttage
C. artificial selection
D. homologous structure
hey this is the graphs for the question
What makes up the inside or middle of the DNA ladder?
A. Sugar
B. Nucleotides
C. Nitrogen bases
D. Phosphate
Answer:
C. Nitrogen bases
Explanation:
It has an alternating chemical phosphate and sugar backbone, making the 'sides' of the ladder. (Deoxyribose is the name of the sugar found in the backbone of DNA.) In between the two sides of this sugar-phosphate backbone are four nitrogenous bases: adenine (A), thymine (T), cytosine (C), and guanine (G).
Answer:
Structure of DNA
It has an alternating chemical phosphate and sugar backbone, making the 'sides' of the ladder. ... In between the two sides of this sugar-phosphate backbone are four nitrogenous bases: adenine (A), thymine (T), cytosine (C), and guanine (G).
What are two characteristics of DNA?
O Double bonded with hydrogen
O Organic and saturated
O Helix and double stranded
Phosphate and nitrogenous
Explanation:
DNA has three types of chemical component: phosphate, a sugar called deoxyribose, and four nitrogenous bases—adenine, guanine, cytosine, and thymine. Two of the bases, adenine and guanine, have a double-ring structure characteristic of a type of chemical called a purine.
Sodium nitride molecular mass of
Answer:69
Explanation:
NaNO2
Which is a function of the cardiovascular system?
to move water
to eliminate waste
from the body
to provide structural to transport gases
support for the body throughout the body throughout the body
Music of
How do the structures ribosomes and ER work together?
To synthesize lipids and modify toxic substances so that they are harmless
To synthesize and isolate proteins for distribution and use in the cell
To break down glucose in order to create ATP
RNA leaves the nucleus to be translated by ribosomes
Answer:To synthesize and isolate proteins for distribution and use in the cell
Explanation:To synthesize and isolate proteins for distribution and use in the cell
Please help me to answer this questions. If you help me to answer it I will give you brainiest
Answer:
a. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.
b. Mercury, Venus, Earth, and Mars.
c. Neptune, Uranus, Saturn, and Jupiter.
Explanation:
a. Name the planets of the solar system in order :
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.
b. Name the rocky planets.
Mercury, Venus, Earth, and Mars.
c. Name the gas giants.
Neptune, Uranus, Saturn, and Jupiter.
Answer:
a mercury , venus , earth mars , jupiter, saturn , uranus , neptune
b mars, mercury ,venus ,earth
c jupiter, neptune, uranus, saturn
What is an endocrine function?
Answer:
Explanation:
The endocrine system is a messenger system comprising feedback loops of the hormones released by internal glands of an organism directly into the circulatory system, regulating distant target organs. In vertebrates, the hypothalamus is the neural control center for all endocrine systems. In humans, the major endocrine glands are the thyroid gland and the adrenal glands. The study of the endocrine system and its disorders is known as endocrinology.
Which of the following would be the best definition of diffusion? The movement of molecules....
- from an area of higher concentration to an area of lower concentration
-using energy
-down the concentration gradient
-from an area of lower concentration to an area of higher concentration
-using energy
-up a concentration gradient
-from an area of low concentration to an area of high concentration
- without energy
- up the concentration gradient
-from an area of higher concentration to an area of lower concentration
-without energy
-down the concentration gradient
Answer:
-from an area of higher concentration to an area of lower concentration
-without energy
-down the concentration gradient
Explanation:
Simple diffusion does not require energy. This is likely what the question is referring to.
An example of simple diffusion:
If you blow up a balloon and then poke a small hole in it. The air will leak out from the high concentration inside the balloon to the low concentration outside of the balloon. It does not require any energy to be put it--it leaks out on its own as long as there is a hole.
Answer:
-from an area of low concentration to an area of high concentration
- without energy
- down the concentration gradient
Explanation:
The movement of molecules from an area of low concentration to an area of high concentration, without energy, down the concentration gradient is correct.
Pls pls pls help meeee
Answer:
yeah it's answer is biodiversity
what does the largest tarsal form?
Answer:
The calcaneus is the largest tarsal bone and lies underneath the talus where it constitutes the heel.
Which is not included in a niche that a
species occupies?
A. the habitat that the species lives in
B. the diet of the species
C. the species' step on a food web
D. the population size of that species
which is a key component of the energy molecule ATP?
Answer:
molecula de energia ATP o tambien adenosina trifosfato
Explanation:
un componente clave seria la glucosa unida, (de 5 a 6 carbonos en algunos casos) y otro seria la ribosa (C5H10O5)
Lab: Interdependence of Organisms
Assignment: Lab Report
Active
Answer:
2 4 6 8 yeet
Explanation:
the explanation is unclear