Answer:
If snakes were removed the grass hopper population would increase
Explanation:
If snakes went there to eat the grass hoppers more grass hoppers would be alive cause of course theres not that much to eat them
Does species are largest unit of life?
Answer:
no. domain is the largest scale of measuring of life
Based on the article, which statement accurately describes garlic mustard and trillium in the forest?
( 1 ) Trillium and garlic mustard are both native plats.
( 2 )Trillium is a native plant, and garlic mustard is an invasive plant.
( 3 )Trillium is an invasive plant, and garlic mustard is a native plant.
( 4 )Trillium and garlic mustard are both invasive plants.
The answer is number ( 2 ).
Answer:
For the answer is 2, or for people who don't know what number are it is b.
Explanation:
Trillium is a native plant, and garlic mustard is an invasive plant.
What is Trillium?Trillium is a genus of herbaceous perennial flowering plants native to temperate regions of North America and Asia. The plants are commonly known as trilliums or wake robins, and are well known for their distinctive three-petaled flowers, which are typically white, pink, or red in color.
Trilliums typically grow in wooded areas and are often found in large colonies. They are important components of temperate forest ecosystems, providing food and habitat for a variety of animals, including insects, birds, and small mammals. Trilliums are also highly valued by wildflower enthusiasts and are widely cultivated for their attractive flowers and foliage.
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State the three basic premises of the modern cell theory
Answer:
1) All living things are made up of cells.
2) Cells are the building blocks/smallest unit of life.
3) All cells come from preexisting cells (cell division).
Explanation:
The three basic premises of the modern cell theory are as follows:
All living organisms whether plants or animals are made up of cells. A cell is the smallest unit of all living organisms.It is the basic structural and functional unit of organisms. Who proposed the cell theory?The cell theory was proposed by German botanist M. J. Schleiden and German zoologist T. Schwann in 1839. They proposed cell theory after studying numerous plants and animals.
Cell theory was further refined by German biologist Rudolf Virchow in 1855. According to him, all cells are arising from pre-existing cells. It may also be represented as "omnis cellula a cellula".
Till then all sorts of living entities are following all the three premises of the cell theory except virus.
Therefore, the three basic premises of the modern cell theory are briefly mentioned.
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What is the function of the flesh of fruits?
Answer:
It serves as an attractant for animals so they can eat it and help in dispersal of the seeds. It also acts as a protective covering for the seeds inside.
Explanation:
What we call the "flesh of the fruit" is actually the ovary of a flowering plant.
Which of the following pairs is mismatched? Select one: a. endoderm - bone b. mesoderm - muscle c. ectoderm - skin d. neuroectoderm - nervous system e. neural crest cells - peripheral nervous system, skin pigment, tissues of the face
Answer: a. endoderm-bone
Explanation: In the context of embryonic development, bone tissue may arise from several precursor cell populations, such as the neural crest (some facial bones), lateral mesoderm (bones of the limbs, among others), and paraxial mesoderm (vertebrae and part of the skull). There is no evidence to suggest that any of the bony structures is derived from the endoderm germ layer.
Populations and Communities Unit Test 3 of 34Items Item 3 Two closely related species of birds live in the same tree. Species A feeds on ants and termites, while Species B feeds on caterpillars. The two species coexist successfully because they interbreed The two species coexist successfully because each occupies a different niche The two species do not coexist successfully because they compete for food The two species do not coexist successfully because they use different methods of reproduction
Answer: The two species coexist successfully because each occupies a different niche.
Explanation:
Two species of birds that are closely related to each other tend to live on the same tree because they occupy different niche. Two different species coexist as they have different food preferences.
Niche of the species can be defined as the the contribution of the species in the ecosystem and different organism contributes differently in the ecosystem.
There are many factors such as distribution, temporal and spatial distribution which can be different for both of the species.
So, the difference in the niche of the species enables them to coexists.
Male peacocks have tail feathers that make up 60% of their body length. During the mating season they fan their tails and shake these feathers in front of females. Females evaluate the tail-shaking behavior as part of selecting their mate. Which behavior is most likely to have been the original behavior that, through natural selection, resulted in this mate choice behavior of tail shaking?
1. head movement to make eye contact
2. involuntary muscle contraction such as shivering
3. sound production with the larynx flight
4. grooming feathers with the beak
Is it a, b, c, or d ? (Zoom if you can’t see)
What is the difference between waxing and waning
Answer:
Waxing and waning moons appear to face different directions.
Answer:
the difference between waxing and waning is.
Explanation:
waxing is when the moon goes from new to crescent, first quarter and so on. waning is when the moon is technically getting smaller. going from full to third quarter second, first, till it gets to cresent moon.
The beaches at a nearby lake have been closed because of high E. coli counts. The lake is surrounded by agricultural areas and summer cottages. We know that different species of vertebrates have different E. coli strains in their digestive tracts. What represents a hypothesis for the source of the high E. coli counts?
Answer:
Runoff from dairy farms causes high E. coli counts
Explanation:
Based on the scenario being described within the question it can be said that one hypothesis for this would be that the runoff from dairy farms causes high E. coli counts. This is because this runoff caries vasts amounts of organisms across the land and brings various animals which drink from the excess water and spread and increase the e.coli count.
Which agent of erosion most likely moves sediments in a sand dune? *
1)Wind
2)Running water
3)Glaciers
4)Wave action
Explanation:
which agent of erosion most likely moves sediments in a send dune.
Glaciers
The agent of erosion most likely moves sediments in a send dune is wind. Thus, option A is correct.
What is wind?
Wind has been defined as the geological phase through which a landform or land mass has been attached to sediments, soil, and rocks.This occurs when the wind slows down or some barrier, like a rock or a clump of grass, traps the sediment of wind-blown sands.
Wind deposition is an agent of erosion which most likely moves sediments in a sand dune. This increases in pace as the wind passes up and over the barrier. It takes the grains of sand up the gently sloping, salting upwind side of the dune.
Natural sand dunes usually start as windblown sand that accumulates in a sheltered area behind some type of obstacle such as piles of seaweed and a hill of sand made up of wind on the coast or in a desert and it is because of erosion by wind strong winds blow across the loose sand on the surface of the earth including sands found in deserts.
Therefore, The agent of erosion most likely moves sediments in a send dune is wind. Thus, option A is correct.
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A regular progression of species replacement is called __________.
Answer:
this should help you figure this out!
Explanation:
a somewhat regular progression of species replacement is called succession consists of a community and all the physical aspects of its habitat such as the soil water and weather. Ecosystem.
Ecological succession is the term used to describe a regular progression of species replacement in an ecosystem, whereby increasingly complex species adapt and replace the existing species until a stable climax community is established.
Explanation:A regular progression of species replacement is called ecological succession. This is a process observed in ecology where ecosystems change and develop over time. At the start of this process, a relatively barren area may only support simple life forms such as algae or bacteria. As time progresses, increasingly complex species adapt to the new conditions and replace the existing species. This continues until a stable community is established, often referred to as a climax community. An example of this could be a new volcanic island that initially has no life, but over hundreds of years, becomes a complex forest ecosystem.
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Pepsinogen is produced by __________ and is activated by __________
Answer:
The correct answer is "Chief cells; hydrochloric acid secreted by parietal cells".
Explanation:
Pepsinogen is produced by chief cells in the gastric system. Pepsinogen is a precursor of pepsin, a powerful digestive enzyme that is activated when pepsinogen is exposed to gastric acid in the gastric lumen. This gastric acid is actually hydrochloric acid that is secreted by parietal cells, which are epithelial cells located in the gastric glands.
What is a cell feature that distinguishes a colonial organism from a multicellular organism
Answer:
The difference between a multicellular organism and a colonial organism is that the individual organisms that form a colony or biofilm can, if separated, survive on their own, while cells from a multicellular organism (e.g., liver cells) cannot.
Explanation:
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Individual organisms from a colony or biofilm can survive on their own if they are separated, whereas cells from a multicellular organism cannot. This is the distinction between a multicellular organism and a colonial organism.
What is colonial organism?A colony in biology is made up of two or more conspecific individuals that coexist or are related to one another.
There are advantages for both parties to this connection, such as improved defense or the capacity to assault larger prey.
Multiple independent unicellular creatures make up a colony. All multicellular organisms are interdependent.
Cells from a multicellular organism cannot survive on their own if they are separated, in contrast to individual organisms from a colony or biofilm. This distinguishes a colony organism from a multicellular creature.
Thus, this is the difference between a colonial organism and a multicellular organism.
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Which option BEST explains how yeast interacts with sugar?
Answer:
Yeast can use oxygen to release the energy from sugar like you can in the process called respiration. So, the more sugar there is, the more active the yeast will be and the faster its growth up to a certain point - even yeast cannot grow in very strong sugar such as honey.
Explanation:
In the moss life cycle _____ cells within a sporangium undergo _____ to produce _____ spores. In the moss life cycle _____ cells within a sporangium undergo _____ to produce _____ spores. diploid ... mitosis ... diploid haploid ... mitosis ... haploid diploid ... meiosis ... haploid diploid ... mitosis ... haploid haploid ... meiosis ... haploid
In the moss life cycle, diploid cells within a sporangium undergo meiosis to produce haploid spores. Therefore, option c is correct
- Sporangium: The sporangium is a structure in mosses that contains diploid cells.
- Meiosis: Within the sporangium, diploid cells undergo meiosis, a type of cell division that reduces the chromosome number by half, resulting in the formation of haploid spores.
- Haploid Spores: These haploid spores are released from the sporangium and dispersed by wind or water, eventually germinating into haploid gametophytes, the next stage in the moss life cycle.
- Alternation of Generations: Mosses exhibit alternation of generations, where the haploid gametophyte generation alternates with the diploid sporophyte generation.
- Importance: This process ensures genetic diversity in moss populations by shuffling genetic material through meiosis, ultimately contributing to the survival and adaptation of mosses in diverse environments.
The complete Question is given below:
In the moss life cycle _____ cells within a sporangium undergo _____ to produce _____ spores. In the moss life cycle _____ cells within a sporangium undergo _____ to produce _____ spores.
a. diploid ... mitosis ... diploid
b. diploid ... mitosis ... haploid
c. diploid ... meiosis ... haploid
d. haploid ... meiosis ... haploid
e. haploid ... mitosis ... haploid
In order to perform this experiment what two experimental factors were kept constant
Why is only a small amount (approximately 10%) of energy available from
one trophic level to the next in a food web? *
Answer:
The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat
Explanation:
Final answer:
Only about 10 percent of the energy at one trophic level is available to the next level, with the rest being used for metabolic processes or lost as heat. This energy loss is why food chains usually have no more than four trophic levels.
Explanation:
Energy is passed up a food chain or web from lower to higher trophic levels. However, generally only about 10 percent of the energy at one level is available to the next level. The other 90 percent of energy is used for metabolic processes or given off to the environment as heat. This loss of energy explains why there are rarely more than four trophic levels in a food chain or web.
3 interesting facts about down syndrome
Answer:
There are three different types
In the U.S, black or African American infants with Down syndrome have a lower chance of surviving beyond their first year of life than other races
There are more than 400,000 people living with Down syndrome in the U.S
Explanation:
Final answer:
Down syndrome is a genetic disorder caused by an extra copy of chromosome 21. It is the most common chromosomal disorder and affects approximately 1 in every 700 babies. People with Down syndrome can lead fulfilling lives and make valuable contributions to society.
Explanation:
Down syndrome is a genetic disorder caused by the presence of an extra copy of chromosome 21. Some interesting facts about Down syndrome include:
An individual with Down syndrome has 47 total chromosomes, instead of the usual 46.Down syndrome is the most common chromosomal disorder, affecting approximately 1 in every 700 babies born.People with Down syndrome can lead fulfilling lives and make valuable contributions to society with the right support and opportunities.What is the largest sediment that can be transported by a stream that has a velocity of 50 cm/sec?
A)Pebbles
B)Clay
C)Sand
D)Cobbles
The largest sediment that can be transported by a stream that has a velocity of 50cm/sec is; Sand.
Stream VelocityFirst, a general relationship between stream Velocity and diameter of the sediments is that as the stream Velocity increases, the diameter of the sediments increases and vice versa.
Additionally, the slower the stream Velocity, the lighter is the sediment it can transport.
Hence, the stream in discuss can transport sand sediments.
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A stream with a velocity of 50 cm/sec can transport larger sediments. Among the options provided, cobbles are the largest sediments that can be transported by a stream with this velocity.
Explanation:The size of the sediment that a stream can transport depends on its velocity. In the case of a stream with a velocity of 50 cm/sec, it is capable of moving larger sediments compared to a slower-moving stream. From the options provided, the largest sediment that can be transported by a stream of this velocity is D) Cobbles.
Just to give you additional information, pebbles indeed are smaller than cobbles, while clay and sand are still smaller yet, broken down by the stream's kinetic energy into finer particles. Thus, a stream with a velocity of 50 cm/sec has the power to move cobbles, as well as all smaller types of sediment.
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Under what circumstances should Bipolar Disorder (Manic-Depressive Disorder) be treated with anything other than mood-stabilizing medications?
Lithium and anticonvulsants (and sometimes antipsychotics) are typically the treatment of choice for treating patients with Bipolar Disorder. Is it ever appropriate to use antidepressants in treating a Bipolar patient? Is Electroconvulsive Treatment (ECT), or other alternative modalities, ever preferred for a patient with this diagnosis? Is psychotherapy alone effective or ethical?
Answer:
[tex]x^{2} \sqrt{x}[/tex]
Explanation:
The imperial shrimp, Periclimenes imperator, is sometimes seen riding on the back of large sea cucumbers. The shrimp gets to move around to areas with food and expend very little energy, while the sea cucumber is unaffected. What type of relationship is this, and why?
A. Commensalism, because one species benefits
B. Mutualism, because both species benefit
C. Parasitism, because one species is harmed
D. Predation, because one species dies
What does it mean for a lipid to be saturated or unsaturated
Which characteristics of adaptive immunity ensures that vaccination effectively prevents disease?
Explanation:
Immunological memory of adaptive immunity ensures that vaccination effectively prevents disease
When the adaptive immune system is exposed to a new threat, the specifics of the antigen are memorized so we are prevented from getting the disease againThe concept of immune memory is due to the body’s ability to make antibodies against different pathogensA vaccination against a virus can be made using either active, but weakened or attenuated virus, or using specific parts of the virus that are not activeBoth attenuated whole virus and virus particles cannot actually cause an active infection, they mimic the presence of an active virus in order to cause an immune response, even though there are no real threats presentBy getting a vaccination, one is exposing the body to the antigen required to produce antibodies specific to that virus, and acquire a memory of the virus, without experiencing illness
What happens to the nitrogen when organisms die?
Final answer:
When organisms die, the nitrogen in their bodies is released through decomposition and can be recycled back into the environment through various processes.
Explanation:
When organisms die, the nitrogen in their bodies is released through the process of decomposition. Decomposers, such as bacteria and fungi, break down the organic compounds in dead organisms and release nitrogen in the form of ammonium ions into the soil. This ammonium can then be absorbed by plant roots or converted into nitrates by nitrifying bacteria in the soil. Ultimately, this nitrogen can be recycled back into the atmosphere through the process of denitrification, where bacteria convert nitrates back into nitrogen gas.
Many scientists believe that dinosaurs became extinct due to
Answer:
A. Medeore. Strike
Explanation:
There are 40 individuals in population 1, all with genotype A1A1, and there are 25 individuals in population 2, all with genotype A2A2. Assume that these populations are located far from each other and that their environmental conditions are very similar. Based on the information given here, the observed genetic variation is most likely an example of:
a. genetic drift.
b. gene flow.
c. disruptive selection.
d. discrete variation.
e. directional selection.
Answer:
Genetic drift
Explanation:
Genetic drift can also be referred to as allelic drift, it refers to the variation in allelic frequencies within a particular population over a period of time. It can also be referred to as the random fluctuations in the number of genotypes within a population. Genetic drift is not influenced by the environment and is usually more pronounced in a small population of organisms.
For example, a population of birds can consist of green feathers and blue feathers with the green feathers as the dominant allele, but as a result of random fluctuations, the offspring may all be with green feathers and hence could eliminate or reduce the allele responsible for blue feathers over time.
Rising sea levels could increase the __________ of ground water, making it undrinkable and harming aquatic plants and animals
rising sea levels could increase the salinity of ground water...
which of the following processes results in adaption
1)natural selection
2)genetic drift
3)nonrandom mating
4)migration
5)mutation
Answer:
1. Natural Selection
Explanation:
Explain how one receptor can induce different phenotypes in different cell types.
Answer:
It is possible since a receptor can activate different signaling pathways in different cell types
Explanation:
In a cell, a receptor bind to a specific ligand to activate a signaling pathway, while the same receptor may bind either with the same or another ligand in another cell type and thus activate another signaling pathway
One receptor can induce different phenotypes in different cell types as a
result of the ability to activate different signaling pathways in different cell
types in the body.
Receptors are compounds which have a particular substrate it binds to which are known as ligands when information is to be conducted from one point to another.
Cells have receptor which bind to a specific ligand in order to activate a
signaling pathway. The receptor however can bind to a ligand found in
another type of cell which explains how it's able to induce different
phenotypes in different cells.
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