Counterclockwise rotation of the flagellum causes a bacterial cell to swim or run towards a stimulus, interrupted by clockwise rotation in which the cell tumbles and changes its course.
How does a bacterium respond to stimuli?A bacterium is a unicellular organism that posseses a structure called flagellum.
Flagellum in bacteria is a long, whiplike proteinaceous appendage, used for locomotion.
However, a counterclockwise rotation of the flagellum causes a bacterial cell to swim or run towards stimulus. This rotation is interrupted by a clockwise rotation of the flagellum that causes the bacterium to tumble.
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A hypothesis must be _____.
controlled
testable
changed
scientific
Answer:
Testable
Explanation:
Hypothesis is a tentative idea that may prove to be the answer for problem so it may be testable
PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE
Answer:
testable
Explanation:
State two functions of vascular bundles in leaves
Answer:
Vascular bundle consists of two complex tissues- xylem and phloem. So it has the functions of both.
Functions of vascular bundle:
Transportation of water and minerals from roots to other plant parts and leaves.
Transportation of food from leaves to all other plant parts.
Sometimes, it also serves for support.
Explanation:
Hope it help you
The function of vascular bundles in leaves is transportation of water and minerals from roots to other plant parts and leaves.
What do you mean by vascular bundles?A vascular bundle is a part of the transport system in vascular plants. The transport itself happens in the stem, which exists in two forms: xylem and phloem.
Vascular bundles play important roles in transporting nutrients, growth signals, amino acids, and proteins between aerial and underground tissues.
It is a component of the transport system in vascular plants. It comprises two tissues, i.e. phloem and xylem. Xylem comprises vessel elements, tracheids, xylem sclerenchyma, xylem parenchyma, and xylem fibers.
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HURRY 100 points and a brainlest
Explain at least three pro’s and three cons of invasive species solution. Three reasons why it’s a good solution and three reasons why it’s not, or what challenges it faces.
Who are the stakeholders (people who would care about this issue)? Include those who are supportive of the solution and how it would benefit the environment, and people who would be opposed to the solution (usually they would lose money somehow). If there are no people opposed, state that.
Answer:
The direct threats of invasive species include preying on native species, outcompeting native species for food or other resources, causing or carrying disease, and preventing native species from reproducing or killing a native species' young.
Explanation:
Explain Why would you want to use topographic map on a hiking trip? (In paragraph please)
Buffer zones _______. a. can help regulate the acidity of aquatic ecosystems b. help increase erosion rates c. are set up around natural resource areas d. all of the above please select the best answer from the choices provided a b c d
The main feature of buffer zones is that they are are set up around natural resource areas.
What are buffer zones?Buffer zones are zones in a habitat which are designed to protect sensitive areas such as wetlands, wildlife reserves from negative external pressures.
Buffer zones at set up around natural resource areas.
Therefore, the main feature of buffer zones is that they are are set up around natural resource areas.
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Oscar finds an organism that turns inorganic carbon into organic carbon. What is this process AND what type of organism did Oscar find?
Answer:
This process is called biological carbon fixation, or carbon assimilation. Oscar has found either a plant or algae.
Explanation:
why do plants grown with less light grow taller than the ones grown with light
Hormones released down the stem from the tip of the stem inhibit stem expansion when exposed to light. The hormones do not impede stem growth in the dark. Seeds growing in the dark rely on chemical energy stored in their cells (lipids, proteins, and carbohydrates) to fuel their growth.
Topic: March PhenomenonAnswer:
The light slows stem elongation by sending hormones down the stem from the tip of the stem.
Explanation:
Hormones do not slow stem elongation in the dark. Dark-grown seeds rely on the chemical energy stored within their cells (lipids, proteins, carbohydrates) to power their growth.
referenced from https://stemeducation.nd.edu/
five kingdom system of classification is more advanced than two kingdom system of classification. why
please can you answer my question
its for ninth grade please tell suitable answer and fasttttttt
Answer:
This system of classification of living organisms is better than following the older classification of plants and animals because it eradicated the confusion of putting one species in two different kingdoms.
Explanation:
In five kingdom classification, the criteria to classifiy organisms include
1. Presence / absence of cell wall
2. Presence / absence of nuclear envelope
3. Mode of nutrition
4. Mode of reproduction.
5. Body organisation, Unicellular or multicellular
Acoordingly the organisms were grouped in 5 Kingdoms namely,
Monera - Unicellular prokaryotic organisms -Example, Bacteria
Protista - Unicellular eukaryotic organisms - Example, Euglena, Amoeba, Paramoecium etc
Fungi - Eukaryotic, multicellular organisms with saprophytic mode of nutrition.
Example, Rhizopus, Agaricus etc
Plantae - Eukaryotic multicellular organisms, that are photosynthetic autotrophs Example, Mango, Coconut etc
Animalia - Eukaryotic multicellular organisms, heterotrophic in nutrition
Example, Lion, Dog, Monkey etc
Advantages of Five kingdom over two kingdom classification
1. The five kingdom classification seggregates organisms based on five basic criteria, as compared to two kingdom classification where organisms are classified based on two criteria.
2. Unicellular prokaryotes and eukaryotes as well as Fungi were not included in the two kingdom classification.
3. Mixotrophs like Euglena too were not included in the two kingdom classification.
⚠️⚠️⚠️THE ANSWER IS WOOD!! Trust me, I asked my biology teacher which ones I got wrong on the unit test and she sent me screenshots. The screenshots showed the answers too. it said natural gas was wrong and wood was correct. look...⚠️⚠️⚠️
Which resource is sometimes unpredictable in terms of energy production?
coal
wood
gasoline
natural gas
Answer:
Yes, the answer is wood.
Explanation:
Wood is a natural material and is subject to variations in composition and moisture content. Therefore the energy from burning it or gasifying it would likewise be variable.
not sure what the purpose of this question was, but here's the explanation anyway! have a nice day.
Why is a predator/prey relationship important
Answer:
Predator-prey relations are an important driving force to improve the fitness of both predator and prey. In terms of evolution, the predator-prey relationship continues to be beneficial in forcing both species to adapt to ensure that they feed without becoming a meal for another predator.
Explanation:
Hope this helps!!
A career as a manager of a business
requires the person to be able to handle
which of the following?
A. Only one position/job
B. Just one department
C. Multiple employees
D. Entire company advertising
Answer:
C
Explanation:
Polar bears are believed to have evolved from brown bears 600,000 years ago. Their white fur is an adaptation that allows them to better survive in their snowy environment. This is an example of which mode of natural selection? Explain why you chose this answer.
Answer:
Polar bears have thick, warm, white coats to use as a disguise to sneak up and attack and kill their prey. Overall polar bears have white coats to blend in with their suroundings
Explanation:
What stress causes this type of fault to form?
compression
gravity
tension
shearing
Explanation:
shearing
.........................
Answer: A compression
Explanation: I answered shearing on Edge and got it wrong.
what is the name for a bright red, spicy curry sauce often served with raita?
what is the probability that a gamete will be recessive in a heterozygous parent
A heter0zygous parent (Aa) has one dominant allele (A) and one recessive allele (a). They will produce 4 gametes and half of their alleles are recessive so there is 50% that a given gamete will be recessive (2 gametes have recessive, 2 gametes have dominant)
What is an allele?Assuming the gene is represented by the allele G (dominant), the alternate form (recessive) of the allele will be g.
A heter0zygous pea plant will have the genotype Gg. During gamete formation, Gg will split into G and g gametes.
Thus, 2 is the probability that a gamete will be recessive in a heterozygous parent.
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Which of the two sequences of rocks, a-d and e-g, was disturbed by crustal movements after its deposition?
Answer:
Sequence A-D was disturb by crustal movement after it was deposition. We have evidence in given cross section that sequence A-D was disturb by crystal movement just see above this sequence there is conglomerate bed which indicates it is uncomformity and that below uncomformity plane all beds are inclined so it clear evidence that sequence A-D got disturbance by crustal movement.
Explanation:
Sequence order and principal are given below.
one can order the event in any given cross section on the basis of apply some principal like order of super position, principal of cross cutting relationship, principal of inclusion, principal of original horizontality etc. Order of superposition tell us that if rock is undeformed then older rock would be at bottom and younger at top, principal of cross cutting relationship tell if some igneous body intruded in some rock layer so it mean that layer is older than age of intrusion.
help please!!!
13 15 and 16
BIOLOGY
After being formed by the ribosomes located in the ER, the next organelle to which a protein could be transported is Golgi bodies through anograde pathway of protein transport.
What do you mean by Protein transport?Protein transport may be defined as a process through which various proteins are migrated from the ER to the functional site after packaging into the vesicles.
Most likely the function of a long whip-like tail is to provide motility to the cell, which means movement.
Therefore, option D is correct in question number 16.
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Which statement could be supported by the graph?
Time versus Population Density Graph
a. The number of frogs will decrease in response to an increase in the fly population.
b. The number of grasshoppers will increase in response to an increase in the bird population.
c. The number of coyotes will decrease in response to an increase in the rabbit population.
d. The number of hawks will decrease in response to a decrease in the mice population.
Answer:
d
Explanation:
As the number of prey decrease, the number of predators will naturally decrease. Therefore, in option D, where hawks are the predators and mice are the prey, makes the most sensible answer.
Statement :
The number of hawks will decrease in response to a decrease in the mice population.
As per the graph, the correct answer here is that the number of hawks will decrease in response to a decrease in the mouse population, which is option D, as the rise of the predator would lead to the fall of the prey number in the ecosystem.
What is the prey-predator graph?A prey-predator graph is a graphical representation of the relationship between a population of prey and their predators, and the graph shows how the population sizes of prey and predators change over time and how they affect each other. Prey and predator populations are closely linked. When there are more prey, there is more food available for predators, so predator populations tend to increase. However, as predator populations increase, they begin to consume more prey, which causes the prey population to decrease. As the prey population decreases, the predator population may also decrease due to a lack of food. This creates a cycle of predator-prey population fluctuations that can be observed on a prey-predator graph.
Hence, As per the graph, the correct answer here is that the number of hawks will decrease in response to a decrease in the mouse population, which is option D.
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Suggest how damage to the air sacs can cause the symptom of breathless when exercising.
Which level of biological classification do mammalia and hominidae represent, respectively? class and family order and class family and species species and kingdom
The biological classification for Mammalia taxonomic rank is the Class level, whereas Hominidae is a Family.
What is biological classification?The expression 'biological classification' makes refers to the hierarchical levels of organization of life.
The main levels of this classification include domain, kingdom, phylum, class, order, family, and genus.
In conclusion, the biological classification for Mammalia taxonomic rank is the Class level, whereas Hominidae is a Family.
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Answer:
A. Class And Family
The level of classification goes:
Domain Eukarya
Kingdom Animalia
Phylum Chordata
Class > Mammalia
Order Primates
Family > Hominidae
Genus Homo
Species Sapiens
Please help I'm confused!
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Tell me what to drag and the answer for the one is blank
The steps of protein synthesis are initiation, elongation, and termination.
Steps in protein synthesisThere are three steps in protein synthesis:
Initiation: during which the messenger RNA, the ribosome subunits, and the necessary enzymes all bind together to form the translation bubble and initiate the translation process. Elongation: during which the peptide chain grows by the continuous addition of amino acids.Termination: when the protein synthesis stops as a result of reading the stop codon on the messenger RNA.More on protein synthesis can be found here: https://brainly.com/question/16305501
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In your own words wright a paragraph of the process of the circulatory system.
Reduced vegetation on Earth results in _____.
Answer:
fragmentation of habitat, soil erosion, soil compaction, and increased input of sediment into waterways.
Explanation:
Reduced vegetation on earth will result in more carbon dioxide in the atmosphere because the plants will not absorb the rest.
The effects of plant removal on soil biota were similar to that in the dry season. For both seasons, understory removal had no significant effects on soil Physico-chemical properties (soil water content, pH, total nitrogen, and soil organic carbon) but the removal of all plants significantly decreased soil pH.
Expansive changes in tundra and boreal vegetation can have significant implications for physical and ecological processes, as well as impacts on communities. Vegetation change that alters land surface darkness influences albedo and surface energy balance.
In the cells of most organisms, DNA is contained in the
a
cell wall
b
nucleus
c
ribosomes
d
lysosomes
Answer:
B. Nucleus
Explanation:
DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA). Mitochondria are structures within cells that convert the energy from food into a form that cells can use.
The information in DNA is stored as a code made up of four chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T). Human DNA consists of about 3 billion bases, and more than 99 percent of those bases are the same in all people
Which phrase should be written in the column titled "always"? have a backbone are warm-blooded are multicellular eat plants
The correct phrase would be that warm-blooded animals always have a backbone.
What warm-blooded animals?They are animals whose body temperature does not fluctuate with the temperature of the environment.
Warm-blooded animals have a system in place that ensures that the temperature of their body does not fluctuate significantly. The process by which this is achieved is called homeostasis.
Warm-blooded animals are advanced animals in the chordate group. Chordates have notochords that develop into the brain and the spinal cord in several animals.
Thus, all warm-blooded animals always have a backbone.
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Answer:
Are multicellular
Explanation:
Correct on Edge
How is the DNA sequence
AATTA replicated in a new strand during replication?
Answer:
TTAAT
Explanation:
In a strand of DNA, Adenine and Thymine form complementary pairs, while Guanine and Cytosine form complementary pairs. This sequence lacks Guanine and Cytosine.
WRITE ABOUT PACKAGING OF DNA DOUBLE HELIX IN EUKARYOTES AND PROKARYOTES
Explanation:
Packaging Of Dna Double Helix:Prokaryotes
↬ No well defined nucleus.
↬ DNA is held with some proteins in nucleoid region.
Eukaryotes
↬ Histones:
↬ Positively charged proteins. ↬ Rich in arginine and lysine. ↬ 5 types:- H₁ H₂A, H₂B, H₃ H₄.↬ Histone octamer:
↬ A pair of 4 histones.↬ Nucleosome:
↬ DNA (-ve charge) makes two complete turns around the histone octamer (+ve charge) to form a nucleosome.Answer:
in prokaryotes there is there is not proper neucloseomw
What is overconsumption? How does overconsumption mirror overpopulation?
This element is a gas, can only form one bond, and is found in compounds like carbohydrates. What is it?
Hydrogen
Water
Oxygen
or Carbon
AnswEr
⠀⠀Hydrogen is a gas which can only form one bond ( or single bond ) and , is found in carbohydrates .
⠀⠀⠀⠀⠀Because , It has only one electron in valence shell . To attain the electronic configuration of nearest inert gas , this element have only one electron to share , from which it can achieve his electronic configuration of nearest inert gas and complete his duplet .
which correctly lists three main causes of deforestation?