12. Removing an organism from an ecosystem will have which of the following affects? Select all that apply.
A. Increase in biodiversity
B. Decrease in biodiversity
C. Increase in the overall health of the ecosystem
D. Decrease in the overall health of the ecosystem
Answer:
B and D
Explanation:
Biodiversity comes from having multiple types of organisms. This also allows different organisms to eat and create nutrients that is needed by all other organisms in the ecosystem.
Oxygenated blood returns to the heart from the lungs via four pulmonary ____.
a. arteries
b. arterioles
c. veins
d. venules
Answer:
C
Explanation:
All veins carry deoxygenated blood except pulmonary vein
Answer:
The answer is
c. veins
Explanation:
when the people swalo the gum what will happen in digestion?
Answer:
If you swallow gum, it's true that your body can't digest it. But the gum doesn't stay in your stomach. It moves relatively intact through your digestive system and is excreted in your stool.
Contrast the major differences between the organization of DNADNA in viruses and bacteria versus eukaryotes. Drag the appropriate characteristics to their respective bins. ResetHelp contain a mixture of both unique and repetitive DNADNA sequencesconsist mostly of noncoding DNADNA sequencesconsist mostly of coding DNADNA sequencescontain large amounts of DNADNAshort, circular or linear DNADNA moleculescontain relatively little amount of DNADNA-associated proteinsconsist of mostly unique DNADNA sequencescontain a large amount of DNADNA-associated proteins Eukaryotic genomes Viral or bacterial genomes
Answer:
Quantity, information content, packing and replication of chromosome.
Explanation:
Quantity, information content, packing and replication of chromosome are the major differences that is present between the organization of DNA in viruses and bacteria as compared to eukaryotes. The quantity of DNA in bacteria and virus is less than eukaryotes. In virus and bacteria, DNA is arranged into a single circular chromosome while on the other hand, in eukaryotes, DNA is arranged into several linear chromosomes.
List all six stages of the sensory pathway when an animal responds to information about its environment.
Explanation:
There basically four stages of sensory pathway when an animal responds to information about its environment.
and these stages of pathway are Reception, transduction, transmission, and perception.
The sensory receptors are commonly described as specialised neurons found in sense organs that helps detect and respond to stimuli. The six stages of the sensory pathway which an animal responds to information about its environment are:
Reception: This falla under sensation. It is simply a type of sensory receptors detect that stimulus is present.Transduction: This also falls under sensation. It is a type of sensory receptors whose work is mainly to convert stimulus energy into electrochemical energy.Transmission: This falls under sensation. It is when neural impulses leave sensory organs and moves to the brain.selection: This falls under perception. It acts as detectors that filter the stimuli by responding to particular features of a stimulus while also ignoring the rest.Organisation: This falls under perception: It is known to organise the characteristics of sensory stimuli in a meaningful manner. Interpretation: This Fall also under perception. It is known to give meaning to sensory stimuli.Sensation is simply regarded as a physiological process that uses sensory receptors in detecting and responding to stimuli.
Perception is referred to as the mental work of organising and interpreting sensory stimuli, making it meaningful.
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In cats produce many different coat colors. Tabby fur color can be produced by AA or Aa, black is aa. Another gene pair is epistatic to the gene for fur color. When present in its dominant form (WW or Ww), this gene blocks the formation of fur color resulting in offspring with white fur (ww offspring have normal fur). Determine the proportions of offspring from the following cross:______.
AaWw x AaWw.
(Assume no gene linkage).
Answer:
giao
i don't know, don't ask me
Explanation:
Match each stem or root to its description.
Fibrous
Herbaceous
Taproot
Woody
Fruit color in a particular plant is controlled by a set of three quantitative traits that work in an equal and additive manner. Each trait has two alleles (i.e., A and a); each allele represented by a capital letter produces one dose of yellow pigment, while alleles represented with lower case letters do not produce any pigment at all. How many different shades of yellow fruit color are there
Answer:
7
Explanation:
The number of distinct shades of fruit color would be 7. It is given that the color is dominated by a group of three QTL(quantitative traits) with each trait having two alleles(A,a). Out of these two alleles, one represented by a capital letter(A) generates a single dose of yellow pigment while the latter represented by a smaller case letter(a) does not generate any pigment. Since there is no environmental effect, the number of various yellow shades would be 7 through the combinations of yellow and colorless pigments(A/a, A/a, A/a, A).
1 pts
What is the function/job of the nucleus?
Tir
Att
58
o Contain the green chlorophyll and make food for the cells by photosynthesis.
o Outside layer of the cell-responsible for determining what enters and exits the cell.
Thin, tube-like structures that provide support and shape for the cell.
The control center for the cell which contains the DNA of eukaryotic cells.
Next
DLL
Function/Job of nucleus:
Controls and regulates the activities of the cell and carries the genes, structures that contain the hereditary information.
Contains the green chlorophyll and make food for the cells by photosynthesis:
Plants
Outside layer of the cell-responsible for determining what enters and exits the cell:
Cell or Plasma Membrane
Thin, tube-like structures that provide support and shape for the cell:
Microtubules
The control center for the cell which contains the DNA of eukaryotic cells:
Nucleus
In the image is the blood hypertonic, isotonic, or hypotonic compared
to the matrix of the brain?
Answer:
Hypotonic
Explanation:
there is less concentration in the blood compared to the brain
Answer:
Hypotonic
Explanation:
the blood is hypotonic compared to the matrix of the brain because it has less solutes than the matrix
Phagocytes often do not recognize bacterial cells with capsules, increasing the likelihood they will survive and cause disease. What other benefits could capsules give bacterial cells?
Answer: Other benefits that a capsules can give to bacteria includes:
--> slowing the penetration of antibiotics or chemicals,
--> it helps bacteria to adhere to surfaces
--> it prevents them from drying out as it contains water components.
Explanation:
Most microorganisms such as bacteria, virus, and parasites, are free living that benefits both plants and animals. The microorganisms that have the ability to cause disease are called pathogens. Infection occurs when pathogens are able to establish itself in a person through the use of its virulent factors. A typical example of virulent factors include the CAPSULES.
Capsules are made up of polysaccharides which lines the outer layer of a bacteria cell envelope. Example of such bacteria includes:
--> Streptococcus pneumoniae,
--> Klebsiella pneumoniae,
--> Haemophilus influnzae, and
--> Neisseria meningitis
These bacteria secrete a capsule around their cell wall which helps to prevent opsonization and phagocytosis by phagocytes of immune system of the host. This helps them to survive and cause disease. Other benefits that a capsules can give to bacteria includes:
--> slowing the penetration of antibiotics or chemicals,
--> it helps bacteria to adhere to surfaces
--> it prevents them from drying out as it contains water components.
other than color differences, is there any difference between the brown or white bunnies in the simulation?
Which does not occur at the continental margin in the Pacific Ocean?
1. widened margins
2. volcanic activity
3. earthquakes
4. plate interactions
Answer:
Widen Margins occurs at the continental margin in the pacific ocean, so the answer is:
1. Widened Margins.
I NEED HELP PLZ ITS DUE TODAY. The sun produces a great amount of energy with sound and lights. We enjoy the sun's light and heat waves on Earth, but cannot hear any sound of the sun. Explain this phenomenon in terms of mechanical waves and electromagnetic waves. (10 Points)
Answer:
See explanation
Explanation:
First of all, we have to know the difference between a mechanical wave and an electromagnetic wave.
A mechanical wave requires a material medium for propagation. It does not travel through space. An electromagnetic wave does not require a material medium for propagation and it can travel through space.
Light and heat are electromagnetic waves. They both belong to the electromagnetic spectrum. On the other hand, sound is a mechanical wave.
While heat and light can travel through space, sound can not because it is a mechanical wave. Sound has to pass through gas molecules and there is no gas in outer space.
Hence, we enjoy the sun's light and heat waves on Earth, but cannot hear any sound of the sun.
Why do scientists monitor the effect of each method
A- to stop humans from using wood as a resource
B-to prevent global temperatures from rising in the future
C- to study how ecosystems are different in different part of the world
D- to ensure that human have a sustainable supply of wood for the future
How are emergency preparedness and response interdependent on each other?
O The population recognizes the need for both processes.
O Public health is constantly concerned with both fields.
O The two processes occur separately from each other.
O The success of one depends on understanding the other.
Answer:
The answer is D) The success of one depends on understanding the other.
Explanation: Did the lesson and got the answer correct.
Which of the following are filled with synovial fluid?
a) articulated cartilage
b) menisci
c) bursar
d) ligaments
if an earthworm is 18mm long and is photographed and the picture is magnified 2.5x how long will it be in the picture?
Answer:
The earthworm will be 45 mm long in the picture
Explanation:
From the problem, we can take the original size of the earthworm to be 18mm.
Magnification can be obtained using the formula:
magnification = observed size/ original size.
Recall, we are given that the magnification is 2.5.
Hence, can evaluate the size in the picture to be
2.5 X 18mm = 45mm
27. What substance is a liquid at -200 °C?
carbon
phosphorus
xenon
arsenic
nitrogen
Answer:
its nitrogen..........
please help me!!!!!!!
Which of the following statements about metabolism are true? 1) Catabolism is the process in which complex substances are broken down, yielding a net output of energy. 2) Metabolism is an integrated system in which many of the same reactions participate in degradative (catabolic) and biosynthetic (anabolic) pathways. 3) Anabolism involves the synthesis of polymeric biomolecules and complex lipids from monomers such as fatty acids and nucleotides. 4) All organisms require an external source of energy, such as glucose or sunlight, for metabolic energy.
Answer:
the answer is 1), 2) and 3)
Explanation:
Metabolism can be defined as all the chemical reactions inside a cell that are required to carry out cellular functions (e.g., reproduction, growth, development). The metabolic reactions can be divided into anabolic and catabolic reactions. Anabolic reactions refer to metabolic reactions that require energy in order to construct new molecules from smaller ones (i..e., biosynthesis). Anabolism comprises endergonic metabolic pathways which are fueled by the use of energy (e.g., cellular ATP). On the other hand, catabolic reactions refer to metabolic reactions where larger molecules are separated to form smaller ones. Catabolic reactions are exergonic because they do not require energy (for example, reactions involved in cellular respiration).
is the above cell a plant cell or animal cell? provide two observable
Explanation:
you have not showed the cell..please
- Which occurrence is the result of the cell cycle in unicellular organisms?
A. cell repair
B. cell growth
C. cell replacement
D. cell reproduction
Answer:
D
Explanation:
Cell reproduction is the result of the cell cycle in unicellular organisms. The correct option is D.
What is cell reproduction?Cells split to produce multiple cells with similar, if not identical, contents. This process is known as cellular reproduction.
Nuclear division during mitosis produces two somatic cells that are genetically identical to the parent cell and have the same genetic complement.
Asexual reproduction in prokaryotes takes the form of cell division in unicellular organisms.
When an organism splits in half, it creates two totally distinct daughter cells, a process known as binary fission. The daughter cells are identical to the parent cells genetically.
Most of the time, Paramecium reproduces asexually via budding, however in poor circumstances, they produce sexually.
Unicellular organisms have a variety of asexual reproduction strategies, including multiple fission, fragmentation, and budding.
Thus, the correct option is D.
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4. The autonomic nervous system is composed of "
The type of RNA that delivers amino acids to the ribosome during protein synthesis is tRNA.a) trueb) false
Answer:
A). True
Explanation:
tRNA, which means transfer RNA is one of the three types of RNA known in nature. The tRNA is found in the ribosome, where it plays a pivotal role in protein synthesis (translation). Transfer RNA is the RNA responsible for reading the nucleotides in the mRNA codon and carrying the amino acid that corresponds those codons to the ribosome.
The tRNA has a 3-dimensional structure that allows it to carry anticodon that reads codon and also carry amino acids on opposite ends. Hence, according to this question, tRNA is a type of RNA that delivers amino acids to the ribosome during protein synthesis.
how do the rates of photosynthesis change with the physical environment?
Answer:
Without enough light, a plant cannot photosynthesis very quickly - even if there is plenty of water and carbon dioxide and a suitable temperature. Increasing the light intensity increases the rate of photosynthesis, until some other factor - a limiting factor - becomes in short supply.
Explanation:
Most of the hydrosphere is in what form?
freshwater
ocean water
groundwater
ice
Answer:
Ocean water
Explanation:
97.5% of the earth's water is contained in the ocean.
How would the population of this type of plant be affected if the bee
population decreased dramatically?
A. Because the plants depend on the bees as a food source, the plant
population would decrease.
B. Because the plant would not reproduce as effectively, the plant
population would decrease.
C. Because the two organisms are of different species, the plant
population would be unaffected by the change in the bee
population.
D. Because the bees would no longer prey on the flowers, the plant
population would increase.
Answer:
Option B - because bee act as a medium for the plant for fertilisation due to which plant reproduce but if the population of bee decrease this will affect the rate of reproduction in plants.
The population of this particular type of plant be affected if the bee population decreased dramatically because the plant would not reproduce as effectively, and the plant population would decrease. Thus, the correct option is B.
What is Population?A Population may be defined as the group of individuals belonging to the same species living in the same area at a given time. This represents the members of the same species in a definite area.
The population of bees is significantly necessary for mediating the process of pollination that involves the mechanism of sexual reproduction in plants.
But if the population of bees is reduced due to any factor, this plant does not undergo the process of pollination which ultimately leads to the reduction in the population of this plant as well.
Therefore, the correct option for this question is B.
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28. What substance is a liquid at 4000 °C?
carbon
phosphorus
xenon
arsenic
nitrogen
Answer:
its carbon............
Answer:
Against the wall and the other side and rear bumpers to be a great...
lest 5 Adaptation to oxygen up take for mounting climbers