Answer:
A, 1/2
B, 1/2
C, 0
D, 0
E, 1/1
Explanation:
With O+ and AB+ the only possible combinations, via a punnett square, are A+ and B+.
Explain the parts of Darwin’s Theory of Natural Selection.
Fake answers will be reported
Answer:
more individuals are produced each generation that can survive. phenotypic variation exists among individuals and variation is heritable. those individuals with heritable trails better suited to the environment will survive.
Mistletoe steals nutrients and ____ from its host plant.
A. Carbon Dioxide
B. Water
ANSWER AND QUESTION.....
Mistletoe steals nutrients and """water"""
from its host plant.
A. Carbon Dioxide
B. Water
Mistletoe is the common name for obligate hemiparasitic plants in the order Santalales. They are attached to their host tree or shrub by a structure called the haustorium, through which they extract water and nutrients from the host plant. Their parasitic lifestyle has led to some dramatic changes in their metabolism.
Explanation:
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Examine the following scenarios and label population growth regulation as: DD) Density Dependent or DI) Density Independent (1.5 pts) a. A tornado in Oklahoma wipes out a population of scrub pine trees. b. b. Adelie penguin mating pair cannot lay eggs because all the nesting sites are being occupied by other mating pairs. c. A pack of hyenas chase & take down 10 gazelles from a larger herd.
The labelling of population growth regulation as; Tornado wiping out a population of scrub pine trees are Density Independent, Adelie penguin mating pair cannot lay eggs due to occupied nesting sites are Density Dependent, and Pack of hyenas chasing and taking down gazelles from a larger herd are Density Dependent.
Tornado wiping out a population of scrub pine trees: DI (Density Independent)
Tornadoes are natural disasters that can cause widespread destruction and affect populations regardless of their size or density. The impact of a tornado on the scrub pine tree population is not directly influenced by the density of the population. Therefore, this scenario is an example of density-independent regulation.
Adelie penguin mating pair cannot lay eggs due to occupied nesting sites: DD (Density Dependent)
In this scenario, the availability of nesting sites directly affects the ability of the Adelie penguin mating pair to lay eggs. As the nesting sites become occupied by other mating pairs, the density of the population increases, leading to competition for limited resources. The regulation of mating pair reproduction based on the density of the population is an example of density-dependent regulation.
Pack of hyenas chasing and taking down gazelles from a larger herd: DD (Density Dependent)
The behavior of the pack of hyenas in chasing and taking down gazelles is directly influenced by the density of the gazelle population. As the herd size increases, there are more potential prey available, leading to increased hunting success for the hyenas. Therefore, this scenario exemplifies density-dependent regulation, as the predator-prey interaction is influenced by the density of the gazelle population.
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Answer:
A
Explanation:
Answer:
D.
Explanation:
Describe the process of photosynthesis, in your own words.
Answer:
Photosynthesis is process by which green plants manufacture their food by making use of carbon dioxide and water in the presence of sunlight
3. Please rank the following topics from most to least interesting: (Fire Ecology - (FE), Noise Pollution and Mitigation Strategies (NP), College Majors and Careers in the Environment (CC), Great Pacific Garbage Patch (GP), EcoTourism
1.
2.
3.
4.
5.
6.
Why are there two numbers normally given when determining blood pressure?
Answer:
Both numbers are equally important and you need both. There are two because you need both.
Explanation:
When you go to take your blood pressure the top number is the systolic pressure and it measures the amount of pressure in your arteries during the contraction of your heart muscle. The bottom number is called the dialostic pressure and measures the amount of blood pressure of you heart muscle between beats. Healthy blood pressures numbers are 120 over 80, or 120/80.
hydrophobic substances question 13 options: a) can easily diffuse through lipid bilayers b) require transmembrane channels to diffuse through lipid bilayers c) are blocked by the hydrophilic core of a lipid bilayer d) are selectively transported across lipid bilayers.
The correct option is (a). Hydrophobic substances can easily diffuse through lipid bilayers. A lipid bilayer is a double layer of lipids that forms the core of nearly all cell membranes.
Hydrophobic substances can easily diffuse through lipid bilayers. A lipid bilayer is a double layer of lipids that forms the core of nearly all cell membranes. A lipid bilayer consists of two layers of hydrophobic (water-repelling) phospholipids, which face inward and surround a layer of hydrophilic (water-loving) molecules. The membrane is selectively permeable to allow the exchange of specific materials in and out of the cell. Small, uncharged molecules, such as hydrophobic substances, can easily diffuse through the lipid bilayer. Hydrophobic molecules are repelled by water molecules and attracted to lipid molecules, allowing them to diffuse through the membrane. Some examples of hydrophobic molecules that can easily diffuse through lipid bilayers include carbon dioxide and oxygen.
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you discover a fungus that contains a strange star-shaped organelle not found in any other eukaryotic cell you have seen. on further investigation, you find the following. 1. the organelle possesses a small genome in its interior. 2. the organelle is surrounded by two membranes. 3. vesicles do not pinch off from the organelle membrane. 4. the interior of the organelle contains proteins similar to those of many bacteria. 5. the interior of the organelle contains ribosomes. briefly describe how this organelle might have arisen?
The strange star-shaped organelle in the fungus might have arisen through endosymbiosis with a bacterium.
Endosymbiosis is a theory that proposes how eukaryotic cells evolved through the engulfment and integration of certain prokaryotic cells. In this case, the strange star-shaped organelle in the fungus possesses several characteristics that suggest it could have originated through endosymbiosis with a bacterium.
The presence of a small genome in the organelle's interior suggests it retains some genetic material, similar to mitochondria and chloroplasts, which are believed to have originated from endosymbiotic events.
The two membranes surrounding the organelle indicate that it may have been engulfed by the fungal cell, as seen in the engulfment of mitochondria and chloroplasts.
The absence of vesicle formation from the organelle membrane suggests that the organelle might have a different mechanism for protein trafficking and secretion compared to other eukaryotic cells.
The presence of bacterial-like proteins within the organelle's interior supports the idea that it originated from the engulfment of a bacterium.
The presence of ribosomes in the organelle indicates its ability to synthesize proteins, similar to mitochondria and chloroplasts.
Overall, these characteristics align with the theory of endosymbiosis, suggesting that the strange star-shaped organelle in the fungus might have originated through the incorporation and integration of a bacterial cell into the fungal cell.
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if a vector not have origin of replication result in what
Answer:
What will be the consequence of not having an origin of replication (ori) in the vector? Explanation: In the case ori is absent, the vector won't be able to replicate
Explanation:
As the replication won't take place, only one of the daughter cells would be having the vector. A colony of transformed colonies won't be obtained.
if a vector does not has the origin of replication result in not doing replication as the unit of replication is Ori.
In the case Ori is absent, the vector may not be capable of replicating. As the replication may not take place, the handiest one of the daughter cells might be having the vector. A colony of converted colonies may not be obtained.
What is transgene?
Of these, the maximum usually used vectors are plasmids. Common to all engineered vectors have a foundation of replication, a multi cloning site, and a selectable marker. The vector itself is normally a DNA series that includes an insert (transgene) and a bigger series that serves as the "backbone" of the vector.
Thus it is clear that if a vector does not have an origin of replication result in nonreplicating.
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Name one process that helps to create unique cells during meiosis.
Answer:
Processes:
Explanation:
Prophase I, Prometaphase I, Metaphase I, Anaphase I, Telophase I and Cytokinesis, Prophase II, Prometaphase II, Metaphase II, Anaphase II, and finally, Telophase II and Cytokinesis.
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Granite is formed when _____. limestone is changed by heat and pressure sediment is cemented with calcite magma cools under the surface of the Earth lava spills onto the Earth's surface and cools
Answer:
Granite is formed when molten magma flows and cools underground.
Explanation:
Granite is an intrusive igneous rock, so it forms underground.
Answer:
Granite is formed when molten magma flows and cools underground.
Explanation:
The igneous rock granite could be pressed below the Earth's surface until it changes into the metamorphic rock gneiss.
Describe two ways in which bacteria and the fungus Penicillium are similar and two ways they are different.
The ways in which, bacteria and the fungus Penicillium are similar is; Microscopic organisms, Environmental presence, and the ways in which, bacteria and the fungus Penicillium are different is; Cell type and structure, Mode of nutrition.
Similarities between bacteria and the fungus Penicillium;
Microscopic organisms; Both bacteria and Penicillium are microscopic organisms. They cannot be seen with the glance and require a microscope for observation.
Environmental presence; Both bacteria and Penicillium can be found in a wide range of environments. They are highly adaptable and can thrive in various habitats, including soil, water, air, and even the human body.
Differences between bacteria and the fungus Penicillium;
Cell type and structure; Bacteria are prokaryotic organisms, which means they lack a true nucleus and other membrane-bound organelles. They have a simpler cell structure compared to the eukaryotic fungus Penicillium. Penicillium has complex cellular structures, including a well-defined nucleus and various organelles.
Mode of nutrition; Bacteria and Penicillium differ in their modes of nutrition. Bacteria can be autotrophic, obtaining energy through photosynthesis, or heterotrophic, obtaining energy by consuming organic matter. In contrast, Penicillium is a heterotrophic fungus, obtaining nutrients by absorbing organic matter from its surroundings.
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What is your opinion on the use of CRISPR on germ-line cells and why?
A. 2-3 sentences
B. 1-2 sentences for your opinion and 1-2 sentences for your supporting evidence.
Answer: https://medlineplus.gov/genetics/understanding/genomicresearch/genomeediting/
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Which of the following sentences are the best short summary for a flashlight?A A flashlight flashlight has has many many uses.uses.A A flashlight flashlight is is able able to to create create light light energy, energy, which which allows allows us us to to see see in in the the dark.dark.A A flashlight flashlight is is a a necessary necessary tool tool for for every every household.household.A A flashlight flashlight is is a a portable, portable, battery-battery-operated operated device device that that makes makes light.light.
Answer:
The last one
Explanation:
Flashlight is a portable, battery-operated device that makes light.
A flashlight is a portable, battery operated device that makes light is the best short summary for a flashlight.
What are the features of flashlight?A flashlight or torch is a portable hand-held electric lamp. Formerly, the light source typically was a miniature incandescent light bulb, but these have been displaced by light-emitting diodes since the mid-2000s.
The three main features for a flashlight are Dimensions, Battery, and Light. Each of these characteristics are very important when it comes to selecting a flashlight.
Flashlights are used as a light source outdoors, in places without permanently installed lighting, during power outages, or when a portable light source is needed.
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what is carrying capacity related too
Answer:
The number of organisms which can survive to the resources within an ecosystem.
Explanation:
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1) Read the following paragraph and answer the following questions.
The countries which do not have oil reservoirs in their land, import oil from other countries. But sometimes during transportation of oil through sea routes, accidental oil spill occurs. This oil spilled in the ocean may prove fatal and toxic to aquatic animals. Therefore, removal of this spilled oil is essential for protection of aquatic life. For removing this oil layer, certain microbes like Pseudomonas spp and Alcanivorax borkumensis are used. These microbes have the ability to destroy the pyridines and other toxic chemicals. The hydrocarbonoclastic bacteria (HCB) are able to decompose the hydrocarbons and bring about the reaction of carbons with oxygen resulting in formation of CO2 and water. Like oil spills cause damage
to aquatic life, plastic forms the major part of the garbage on the land. Plastics are difficult to degrade as they are made up of PET, by research various species like Vibrio and Ideonella sakaiensis which can degrade PET have been identified. There are certain species of microbes which can decompose rubber from garbage.
a) How are aquatic organisms affected by oil spills in the ocean?
b) Which type of chemical compounds are degraded by microbes used for
clearing oil spills?
c) Name any two species of microbes which can degrade rubber from
garbage.
d) Why should there be a ban on plastic bags?
Answer: See explanation
Explanation:
a) How are aquatic organisms affected by oil spills in the ocean?
Aquatic organisms are affected by oil spilled as it is fatal and toxic to them. It can cause death, habitat degradation, vulnerability to predators and can also lead to the inability to hatch their eggs.
b) Which type of chemical compounds are degraded by microbes used for
clearing oil spills?
The chemical compound degraded by microbes are clearing oil spills are Pseudomonas spp and Alcanivorax borkumensis.
c) Name any two species of microbes which can degrade rubber from
garbage.
These are Vibrio and Ideonella sakaiensis.
d) Why should there be a ban on plastic bags?
There should be a ban on plastic bags as they're difficult to degrade as they are made up of PET.
What are the general climate regions on earth?
The Earth has three main climate zones: tropical, temperate, and polar.
Answer: warm, hot, cold, chilly
Explanation:
In the embryonic stage, which of the following develops before other parts of the body?
a) The head
b) The foot
c) The spine
d) The stomach
The head develops before other parts of the body in the embryonic stage. The correct option is a.
During embryonic development, the head is one of the first structures to form before other parts of the body. This early development of the head is a fundamental aspect of vertebrate embryogenesis. The process starts with the formation of the neural tube, which gives rise to the central nervous system, including the brain.
The development of the neural tube occurs early in embryogenesis and serves as a foundation for the subsequent development of other organ systems.
As the neural tube develops, it gives rise to the structures of the head, including the brain, face, and sensory organs. This initial development of the head provides the framework for the formation of other structures and systems in the body, such as the spinal cord, limbs, and internal organs.
While other parts of the body, such as the foot, spine, and stomach, will eventually develop during subsequent stages of embryonic development, the head takes priority in terms of early formation. The correct option is a.
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Neuromodulation is the release of chemicals (other than ____________ ) from cells that locally regulate or alter the response of neurons to neurotransmitters. The substances released are called ____________ . Neuromodulation generally results in either facilitation or inhibition. When there is greater response from a postsynaptic neuron because of the release of neuromodulators it is ____________ . This may result from either ____________ amount of neurotransmitter in the synaptic cleft or ____________ number of receptors on postsynaptic neurons. When there is less response from a postsynaptic neuron because of the release of neuromodulators, it is called ____________ . This results from either ____________ amount of neurotransmitter in the synaptic cleft or ____________ number of receptors on postsynaptic neurons.
Answer:
Neurotransmitters; neuromodulators; facilitation; an increased; an increased; inhibition; a decreased; a decreased.
Explanation:
In Biology, stimulus can be defined as an obvious change in either the chemical or physical structure of an organism' environment (either external or internal). Thus, all living organisms (both animals and plants) respond to changes in their environment and consequently, an appropriate response or reaction is made. Also, stimulus arising from within the organism is known as internal stimulus while those from its environment are known as the external stimulus.
In organisms, the specialized cells that detect stimulus are generally known as sensory receptors while a group of these receptors is referred to as sense organ.
Neuromodulation is the release of chemicals (other than neurotransmitters ) from cells that locally regulate or alter the response of neurons to neurotransmitters. The substances released are called neuromodulators. Neuromodulation generally results in either facilitation or inhibition. When there is greater response from a postsynaptic neuron because of the release of neuromodulators it is facilitation. This may result from either an increased amount of neurotransmitter in the synaptic cleft or an increased number of receptors on postsynaptic neurons. When there is less response from a postsynaptic neuron because of the release of neuromodulators, it is called inhibition. This results from either a decreased amount of neurotransmitter in the synaptic cleft or a decreased number of receptors on postsynaptic neurons.
Which is NOT needed to complete photosynthesis?
A. water
B. oxygen
C. sunlight
D. carbon dioxide
After eating a sugary snack, a person's blood sugar
level may rise for a short period of time. Which
statement describes the body's way of restoring
homeostasis?
A. The brain will stimulate the body to sweat
in order to increase blood sugar levels.
O B. The brain will stimulate the cells to produce
more sugar, increasing blood sugar levels.
C. The brain will stimulate the cells to
maintain the elevated blood sugar levels.
O D. The brain will stimulate the release of a
chemical that will lower blood sugar levels.
I Now Give Up On Life :) Don't Try And Stop Me
Wdym you give up...
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read the article and use the information to answer the following questions. cholera in haiti what events likely led to the outbreak of cholera in haiti?
The outbreak of cholera in Haiti was first reported in October 2010. It was the first time that this illness was seen in the country since 1960.
The outbreak of cholera in Haiti was first reported in October 2010. It was the first time that this illness was seen in the country since 1960. It was not known to be endemic in Haiti, which meant that it had not occurred there for at least the previous five years. Cholera is a bacterial illness that is transmitted through contaminated water or food. It causes severe diarrhea, vomiting, and dehydration. The illness can be fatal if left untreated. Cholera is known to occur in countries with poor sanitation and hygiene practices. It is also more likely to occur in areas with high population density, such as refugee camps or slums. In Haiti, a combination of factors likely led to the outbreak of cholera. The country was still recovering from a devastating earthquake that occurred in January 2010. Many people were living in crowded tent camps without access to clean water or sanitation facilities. In addition, heavy rains in the weeks before the outbreak likely contaminated the Artibonite River, which is a major water source for many people in the region. This contamination likely led to the spread of cholera throughout the area. Overall, the outbreak of cholera in Haiti was a tragic reminder of the importance of clean water and sanitation in preventing the spread of infectious diseases.
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(07.03 MC)
An advantage of disposing of municipal solid waste in a landfill rather than in an
incinerator is that, unlike incinerators, landfills
can be used to generate electricity
do not require electricity to operate
do not contribute greatly to smog or acid rain
can store hazardous materials such as motor oils and pesticides
the use electricity more
Answer:
I and III only
At which classification level could two organisms belonging to the same group have the LEAST
in common?
class
family
order
species
Explanation:
Species but dot take my word on it is was an educated guess
Answer:
Explanation:
Species
kingdom is further split into phylum or division, class, order, family, genus, and species, which is the smallest group.
The science of classifying organisms is called taxonomy and the groups making up the classification hierarchy are called taxa.
Hemosiderin found in macrophages and PMNs in lung tissue indicate which of the following?
a. Aggregation
b. Anemia
c. Pulmonary congestion
d. Transudation
Hemosiderin found in macrophages and PMNs in lung tissue indicates (Option c.) Pulmonary congestion.
Hemosiderin is a pigment that results from the breakdown of hemoglobin, the iron-containing molecule found in red blood cells. It is typically stored within macrophages and neutrophils (PMNs) in tissues.
In the context of lung tissue, the presence of hemosiderin in macrophages and PMNs suggests pulmonary congestion. Pulmonary congestion refers to the accumulation of fluid, often blood or blood-derived components, within the lungs. It can occur due to various conditions such as heart failure, inflammation, or lung damage.
The presence of hemosiderin indicates that red blood cells have leaked into the lung tissue, possibly due to increased blood vessel permeability or congestion. Macrophages and PMNs phagocytose the leaked red blood cells and store the iron pigment, hemosiderin, as a result.
Therefore, the presence of hemosiderin in macrophages and PMNs in lung tissue is an indication of pulmonary congestion.
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Which of the following is the specific part of the antigen that antibodies bind to?
a. immunogen
b. epitope
c. hopanoid
d. hapten
The portion of the antigen known as the immunogen that antibodies specifically attach. These bonds could be Van der Waals forces, electrostatic bonds, or hydrogen bonds. Hence (a) is the correct option.
The location where an antigen binds to an antibody is created by the CDRs of the heavy and light chains juxtaposed on the surface of the antibody molecule. The particular antigen-binding location in the variable region of an antibody molecule known as a paratope interacts with the spot of an antigen molecule called an epitope, which is referred to as an antigenic determinant. S. aureus possesses a protein called protein A on its cell wall that can bind antibodies of any specificity.
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will jaws of life damage the environment
Answer:
No
Explanation:
This tool does not effect the environment because it doesn't contain any harmful chemicals that would interfere with the environment's well being.
The jaws of life does not damage the environment.
What are jaws of life?It is basically the rescue tool that are applied for the difficult and the emergency situations like when the car is crushed. Moroever, the tool does not impact the environment because it does not comprise of any harmful chemicals that impact the well-being of the environment.
Therefore, The jaws of life does not damage the environment.
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