Answer:
there's primary consumers and secondary consumers. the primary consumers eats the producers and there herbivores. the secondary consumers eats the primary consumers and they can be omnivores
Explanation:
a population of animals is split in half by a river. Before speciation is completed, the two halves are rejoined when a drought causes the river to run dry. How would this impact the two populations?
A. Traits that had developed through mutation would still exist in only one of the halves
B. Speciation would still occur because the two halves would be too different genetically to interbreed
C. The two halves would be reproductively isolated
D. Gene flow would increase between the two halves, and speciation would not occur
d
please give branlyist
Answer: D. Gene flow would increase between the two halves, and speciation would not occur
Explanation:
Speciation is a phenomena of evolution of a new species from the existing parent species. This occurs when the population of the species gets separated due to geographical barrier, behavioral and due to temporal isolation (having distinct mating seasons). The members of the separated populations may undergo with genetic variations and mutations which may likely to produce a new species.
According to the given situation, if the split halves rejoined then speciation would not occur because speciation requires time for genetic variations and mutations to occur. As, a result of rejoining of the two halves the gene flow will occur due to inbreeding and speciation would not occur.
Animals with 3 issue layers may be characterized by the presence or absence of a _____________.
Coelom
Animals with 3 issue layers may be characterized by the presence or absence of a Coelom.
Explanation;Animals may be characterized by the presence of a coelom, formation of the mouth, and type of cell cleavage during embryonic development.Diploblasts contain two germ layers that is the inner endoderm and outer ectoderm, while triploblasts contain three germ layers, that is; endoderm, mesoderm, and ectoderm.Triploblasts can be further categorized into those without a coelom called acoelomates, those with a true coelom called eucoelomates, and those with “false” coeloms known as pseudocoelomates.may somebody help me please.
Here you go buddy.
Answer:
4. c) The cell enters [tex]G_{1}[/tex].
Cytokinesis is the last step in the process of cell division and it begins prior to the end of mitosis, in anaphase. Through this process, the cytoplasm of the dividing cell is split in two, and thus two identical daughter cells are obtained. These cells are diploid and thus contain a full complement of chromosomes.
5. c) [tex]G_{1}[/tex] --> S --> [tex]G_{2}[/tex] --> mitosis --> cytokinesis.
The cell division process begins with a cell growth period known as interphase.
During [tex]G_{1}[/tex], the cell increases in mass in preparation for cell division. All cellular contents, excluding the chromosomes, are duplicated. This is followed by the S phase in which the chromosomes are duplicated. This step end in [tex]G_{2}[/tex] during which the cell continues to increase in mass and synthesize proteins. Here, the duplicated chromosomes are also checked for errors and repaired if necessary.
During mitosis, the chromosomes in the nucleus are divided into two new nuclei through the mitotic spindle. The cytokinesis is the last step in which the cytoplasm is divided evenly into two new daughter cells.
6. a) DNA replication
During synthesis, the DNA contained within the chromosomes is replicated. This will result in a complete copy of the genetic material. This stage is preceded by the [tex]G_{1}[/tex] phase and followed by the [tex]G_{2}[/tex] phase. These three phases composed the cell growth period known as the interphase.
7. d) interphase
The interphase is a period in which the cell grows in mass ([tex]G_{1}[/tex] and [tex]G_{2}[/tex] phases) as well as a replication of the genetic material (S phase). This will result in a larger cell that will contain a copy of all the structures and genetic material found before the interphase.
8. d) DNA copying: synthesis phase
[tex]G_{1}[/tex] is the first phase in the process known as interphase. It is characterized by a duplication off all cellular structures with the exception of DNA. The DNA is copied during the synthesis phase, which starts at the end of [tex]G_{1}[/tex]. This DNA will be checked for errors and repaired during the [tex]G_{2}[/tex] phase.
9. b) [tex]G_{2}[/tex]:S
During prophase, the chromosomes inside the cell’s nucleus condense in tight structures. These are then arranged in a line along the equator of the cell during metaphase. The DNA contained within the nucleus is duplicated in the S phase and then are checked for errors during [tex]G_{2}[/tex].
10. c) The nucleus is divided into two nuclei
The genetic material that has been duplicated during the S stage of the interphase, will need to be divided so that two identical daughter cells may result. This occurs during the stage of cell division known as mitosis. The end result will be two nuclei that will belong one to each daughter cell.
11. b) Metaphase
Metaphase is the third of five step that compose the cellular division process known as mitosis. During this stage, the duplicated chromosomes in the S stage of interphase are arranged in a line along the equator of the cell. These in turn will be divided and thus for two new nuclei from that of the original cell.
Which feature is not found in all cells?
Nucleus is NOT found ALL cells.
Common features of cells include the cell membrane, the cytoplasm, and the cytoskeleton. Cells also have ribosomes, which are structures where proteins are made. . Cells are classified as prokaryotes or eukaryotes.
The smallest and simplest cells are prokaryotes. A prokaryotic cell is a cell that lacks a nucleus and other internal compartments. As a group they are also among the most ancient. Fossilized prokaryotic cells have been found in rocks over 3 billion years old. A eukaryote is a cell that has a nucleus and other internal compartments, known as organelles.
Hope this helps!!!!!!!!! ^_^
A feature that is not found in all cells is a nucleus as a nucleus is a membrane-bound organelle that is present in eukaryotic cells but not in prokaryotic cells, and the nucleus acts as the central repository for genetic material.
What is the significance of the different cells?In eukaryotic cells, the nucleus stores the genetic material and contains the cell's DNA in the form of chromosomes and it also plays an important role in regulating the expression of genes and controlling the cell's growth and division, while prokaryotic cells lack a nucleus and have a more simple structure than eukaryotic cells.
Hence, a feature that is not found in all cells is a nucleus as a nucleus is a membrane-bound organelle that is present in eukaryotic cells but not in prokaryotic cells, and the nucleus acts as the central repository for genetic material.
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need help help
what would happen to the cells if the body lost all its nutrients by way of the kidney
Answer:Your kidneys are bean-shaped organs, each about the size of your fist. They are located near the middle of your back, just below the rib cage. The kidneys are sophisticated trash collectors. Every day, your kidneys process about 200 quarts of blood to sift out about 2 quarts of waste products and extra water. The waste and extra water become urine, which flows to your bladder through tubes called ureters. Your bladder stores urine until you go to the bathroom.
Explanation:
Examine the weather map. The arrows are pointing to the line with triangles. What does the line indicated by the arrows most likely represent?
a front
an isotherm
high winds
high humidity
The correct answer is - a front.
On this image, the lines are representing a front, and since the signs are marked with blue color, it means that it is a cold front. The fronts are advancing masses of air. In this case, we have a cold front, thus we have advancing cold air masses in the western part of the US, and in the Great Lakes region and the northeastern part of the country. This means that these areas will be affected by colder air masses, that will bring in higher air pressure, colder weather, and cold winds from the direction from which these cold fronts are coming.
Simple Answer:
A front
<Jayla>
Many inlets form when severe storms carry large amounts of sand from around the mouths of streams or rivers out to sea. This fast erosion may seem negative, but it can help create a unique type of habitat.
This habitat is known as
A) a lake habitat.
B) a marine habitat.
C) an estuary habitat.
D) a barrier reef habitat.
The correct answer is c.
Answer:the person is right thank you (:
Explanation: lol i had the same question like this on usatestprep
How many bones in the body
206 bones are in the body
The adult human skeleton consists of 206 bones, although this number was around 270 at birth, the bones fuse together over time forming 206 bones.
How long does a mutation last?
Answer:
How long does a mutation last?
AS Long As The Cell Lives
Explanation:
Answer:
C: As long as the cell lives. Hope this helps! :D
Explanation:
What is the color of ozone?
O A. pale blue
OB. bright yellow
O c.
pale green
OD. white
Ozone gas does indeed have a slight blue color. It is dark blue in a liquid form and purple-black in solid form. The color comes from the fact that it absorbs all wavelengths of light other than those in the blue region.
Ozone gas has a pale blue color. It is a bluish gas that is often associated with the upper layers of Earth's atmosphere,.
Option A is correct.
What is the ozone?Ozone is a molecule made up of three oxygen atoms. It is a pale blue gas that is odorless and tasteless. Ozone is found in the stratosphere, the layer of Earth's atmosphere that is about 10 to 50 kilometers above the Earth's surface. Ozone absorbs ultraviolet radiation from the sun, which helps to protect life on Earth from the harmful effects of UV radiation.
Ozone is also found in the troposphere, the layer of Earth's atmosphere that is closest to the Earth's surface. However, ozone in the troposphere is harmful to human health. It can cause respiratory problems, such as asthma and bronchitis. It can also damage plants and crops.
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PLEASEEEEEE I NEED HELP IN THIS QUESTION!!!!! 78 Points!!!!
The answer would be D
Which is not an echinoderm?
A)sea star
B)sea urchin
C)sand dollar
D)spider
Answer:
An echinoderm is a marine invertebrate. Starfish, Sea urchin, and Sand dollars are all echinoderms. A spider is an arachnid. Which means a spider is *NOT* an echinoderm.
Answer: D) Spider
Hope this helps. :-)
Answer:
D)spider
Explanation:
Starfish, Sea urchin, and Sand dollar, all of following are echinoderms. A spider is a an arachnid.
A neuron can have consecutive action potentials (one right after the next) without a break in between. true or false
A neuron can have a consecutive (one right after the next) without a break in between FALSE.
EXPLANATION: Neuronal refractory period The refractory period in a neuron occurs after an action potential and generally lasts one millisecond.
During chilly days, you might notice lizards lying (“basking”) in sunny areas. Why do lizards bask in the sun?
Question 10 options:
Ectothemic animals are lazy and the sun puts them to sleep.
Ectothermic animals need to get tanned by the sun's rays for camouflage.
Ectothermic animals use the suns rays to help them hide from enemies.
Ectothermic animals need the warmth from the sun to allow them to move around and hunt for food.
Answer:
It is D : Ectothermic animals need the warmth from the sun to allow them to move around and hunt for food.
Explanation:
I took the test and it said it was right
Lizards bask in the sun because ectothermic animals need the heat of the sun to move around and hunt for food.
What are ectothermic beings?When we talk about ectothermic animals, we are talking about beings that need external sources to maintain their temperature. This means that they need to be exposed to the sun or stay in a warm place, such as rocks. One group of animals that has this characteristic is the reptiles.
From this information, we can conclude that lizards warm in the sun because ectothermic animals need the sun's heat to move around and hunt for food.
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What is bio geochemical cycling?
Answer
Hi,
Geochemical cycling is the flow of substances or elements that occurs between reservoirs in Earth’s atmosphere, the water bodies and the lithosphere.
Explanation
A geochemical cycle is normally the path followed by chemical elements in the surface and crust of the Earth. The cycle starts with the crystallization of magma in the lithosphere at the surface or at depth. Weathering and surface alteration follows breaking down igneous rock that will be transported and deposited as sediments. The sediments become lithified and later metamorphosed until melting happens to form new magma.
Best wishes!
Match each organism with the correct description.
1. algae
omnivore
2. deer
carnivore
3. hawk
scavenger
4. human
decomposer
5. vulture
producer
6. mushrooom
herbivore
1. Algae
producer
2. Deer
herbivore
3. hawk
carnivore
4. human
omnivore (honestly a really broad statement but overall yes most humans are omnivores c:)
5. vulture
scavenger
6. mushroom
decomposer
hope this helps! :)
Answer:
1. Algae (Producer ) [Because all algae species are autotrophs]
2. Deer (Herbivore) [Because deer eat vegetation]
3. Hawk (Carnivore ) [They eat flesh]
4. Human (Omnivore ) [Eat everything including greens and flesh]
5. Vulture (Scavenger) [Feeds on dead remains]
6. Mushroom (Decomposer) [Degrades organic matter in soil]
Recent research has found that on one island of the Galapagos two finch species interbred.This interbreeding may have resulted in a hybrid species that ultimately led to the extinction of one of the species Darwin discovered. They call this speciation in reverse, or despeciation. Based on what you know about speciation, why are these terms appropriate?
According to Darwin, Speciation is the process of formation of new species from a parental population. It occurs when the members of a similar population no longer interbreed one another to produce fertile offspring within their natural environment.
What are Species?Species may be defined as a group of organisms that can reproduce intrinsically with one another and construct fertile offspring.
A single species can generate multiple species via the mechanism of reproductive isolation.
These terms are more appropriate because they illustrate the difference in the behavior of two or more species on the basis of isolating mechanisms.
Therefore, it is well described above.
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Answer:
Speciation is the method by which unique species evolve from a common ancestor. In this case, two of these species that split from a common ancestor interbred and created a hybrid. This hybrid was apparently stronger and possibly better adapted to the environment, which led to extinction of a species formed by the initial speciation event.
Explanation:
this is the edmuntum sample answer
Samuel wanted to test how well three types of soil holds water. He poked several small holes in the bottoms of three plastic cups and filled one with sand, one with clay, and one with loam. He set each cup of soil inside a slightly smaller cup, like in the picture shown. He poured the same amount of water into each cup of soil and came back one hour later to measure how much water had dripped through each soil. The following amounts of water were found at the bottoms of the smaller cups.
Sand: 4 ml
Clay: 0 ml
Loam: 2.5 ml
Based on this information, which statement is true?
A) He poured the most water into the cup containing sand.
B) He did not pour any water into the cup containing clay.
C) Clay retained the most water out of the three substances.
D) Sand retained the most water out of the three substances.
the answer to your question is D)
Answer:
C) Clay retained the most water out of the three substances
Explanation:
Based on this information, "clay retained the most water out of the three substances" is the statement that is true.
The experiment was carried out to test the water holding capacity of the three types of soil. In this experiment, 0ml of water was found at the bottom of the smaller cup which contains the clay soil, while sand and loam soil has 4mls and 2.5mls respectively. Clay soil has 0ml of water at the bottom of the cup because it retained the most amount of water and has the highest water holding capacity than the other soils. Clay soil has smaller fine particles. The smaller a soil particles are, the larger the soil’s surface area is, and so the more water the soil retains. This is why clay soil retained the most amount of water in the experiment.
The striking molecular similarities that exist between Earth's many diverse species can best be explained by A. random changes that occur separately in each species' genetic code. B. the sharing of common ancestors within the species' evolutionary history. C. the inability of the species to undergo evolutionary change over time. D. species mating with other species to produce offspring.
Answer:
B
Explanation:
While we may have many species on earth, they all share a common ancestor known as the cenancestor. Even when comparing the genomes of many different species on earth, these are a number of genes (approximately 300) that have been conserved throughout these species some of these being associated with cellular respiration and central dogma.
Answer: Option B
Explanation:
There are many different types of organism that is related to each other. Some of the organisms have been evolved from other organisms.
Two organism are said to be similar because the organism are closely related to each other. They have more recent common ancestors.
The characters in the organism are similar because they are related to each other by their ancestry.
What kind of a Erosion involves dissolved particles
The kind of erosion that involves dissolved particles is CALLED CHEMICAL EROSION.
Erosion refers to the action of surface processes which removes soils, rocks or dissolved materials from one point on the earth surface and transport it to another site.
Chemical erosion is the process by which a rock or other geological features are broken down as result of chemical process. Chemical erosion is also known as chemical weathering. The process of chemical erosion is brought about by water which react with mineral grains in rocks and soils to form new mineral grains and soluble salts. This is especially true for acidic water. Examples of chemical erosion are carbonation, hydrolysis, hydration and oxidation.
What is a pathogen? A microorganism that helps in digestion A microorganism that causes diseases An organism which is harmed by fungi An organism which is harmed by a virus
A microorganism that can cause diseases
Answer:
A microorganism that can cause diseases
Explanation:
A pathogen is a micro-organism that can cause diseases. It is tiny and can infect you easily.
Which of these statements best explains why the inner core of Earth does not melt although it has very high temperatures?
The liquid outer core cools the inner core.
The plastic mantle conducts the heat away from the core.
The iron which makes up the core melts at very high temperature.
The different layers of Earth exert pressure to keep the inner core solid.
Please don answer unless your fairly sure of yourself. thank you
Answer:
The core is in a cube structure, extreme temperatures make the atoms to move so quickly that there is no alteration of the structure hence, no melting.
Explanation:
In the case of extremely high temperatures, atoms change position but still keep their original shape.
Further explanation:
In the case of high temperatures, the atoms making up a cube move rapidly and change position, the change of position is the melting.
Answer:
Option D, The different layers of Earth exert pressure to keep the inner core solid.
Explanation:
Due to extreme high pressure at the core of the earth, the iron does not convert into liquid form. According to a research conducted by KTH Royal Institute of Technology, the iron acquires the body-centred cubic structure when it is at normal pressure but when the pressure is extremely high the iron acquires the shape of hexagonal with 12 points which is a close packed structure. Due to this close pack structure, iron remains solid in the inner core of earth.
Hence, option D is correct
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
A population of hyenas inhabits a tropical savanna. At the beginning of the year, there were 100 hyenas in the population. Throughout the year, 20 hyenas died, 35 hyenas were born, 5 hyenas migrated into the population, and no hyenas left the population. What was the size of the population at the end of the year?
At the end of the year, there were (blank) hyenas in the population.
Answer:
120 is the size of the population at the end of the year
Explanation:
Size of the population is given by
Total number of Hyenas present in the population + Total number of Hyenas born + Total number of Hyenas migration into the population – Total number of Hyenas died
Substituting the given values in above equation, we get -
[tex]= 100 + 35 + 5 -20\\= 120\\[/tex]
120 is the size of the population at the end of the year
At the end of the year, there were 120 hyenas in the population.
Step 1: Calculate the change in population due to births, deaths, and migration:
Starting population: 100 hyenas
Deaths: 20 hyenas
Births: 35 hyenas
Migration in: 5 hyenas
Migration out: 0 hyenas
Step 2: Calculate the net change in population:
Net change = Births - Deaths + Migration in - Migration out
Net change = 35 - 20 + 5 - 0 = 20 hyenas
Step 3: Determine the population size at the end of the year:
Population at the end of the year = Starting population + Net change
Population at the end of the year = 100 + 20 = 120 hyenas
Step 4: Conclusion:
At the end of the year, there were 120 hyenas in the population.
need help fast please!!!
1)what are two types of non mendelian inheritance
2)a trait that is controlled by a non mendelian gene is...?
Answer:
1.) Size, Hair Color
2.)a trait that is not passed down with dominant and recessive alleles from one gene.
Explanation:
What are mutations?
A) changes in nucleotides of a DNA molecule that affect the genetic message
B) repairs of damage to DNA molecules by specialized enzymes
C) removal of damaged DNA nucleotides by enzyme molecules
D) reduction in the rate of replication of DNA due to regulatory mechanisms
Mutations are permanent alterations of the DNA sequence that can affect an organism's physical traits, potentially causing diseases like cancer. They can be caused by errors during DNA replication or by environmental factors like chemical mutagens and radiation. Mutations range from point mutations to large chromosomal changes and can be benign, beneficial, or harmful.
A mutation is a permanent alteration in the nucleotide sequence of a genome, which may occur due to various reasons such as damage to DNA, replication errors, or the action of mobile genetic elements. Mutations can lead to changes in an organism's phenotype or observable characteristics, playing a critical role in both normal and abnormal biological processes. This includes contributing to evolution, the emergence of cancer, and the complexities of the immune system.
Among the different types of mutations are point mutations (a change in a single nucleotide), insertions, deletions, and large-scale mutations that alter chromosomal structure. While some mutations are benign or even beneficial, others can be deleterious, leading to diseases like cancer, or even be lethal.
Mutagens, including radiations like X-rays and gamma rays, as well as chemical substances, can cause mutations. Some mutations occur spontaneously and can be passed on to next generations if they occur in germ cells, or remain confined to an individual if they occur in somatic cells.
What actions help protect the land?
different laws actually help protect the land
A Density Independent Limiting Factor is a limiting factor of a population that can affect the population growth no matter what the population density.what is a density independent limiting factors that can affect the human population growth of South Carolina?
A). Tornadoes
B). Water supply
C). Living space
D). Disease
Answer:
A. Tornadoes
Explanation:
Tornado is a climate change that is density independent factor, and will exert influence on the size of population, no matter what is the density of that population. While on the other hand their are density dependent factors, whose effect become intense as the size of that particular population increases e.g. spread of a certain disease in an area will be more where people are living in close proximity.
Answer: A. Tornadoes
Explanation:
DNA contains all the genetic information within an organism. DNA translates nitrogenous bases into proteins. DNA contains many chromosomes that are passed from parent to offspring during reproduction.
DNA is the genetic material responsible for inheritance and is passed from parent to offspring for all life on earth. DNA must be replicated accurately to preserve its integrity. DNA also directs and regulates protein synthesis in a cell.
Explanation:DNA serves two essential functions that deal with cellular information. First, DNA is the genetic material responsible for inheritance and is passed from parent to offspring for all life on earth. To preserve the integrity of this genetic information, DNA must be replicated with great accuracy, with minimal errors that introduce changes to the DNA sequence. A genome contains the full complement of DNA within a cell and is organized into smaller, discrete units called genes that are arranged on chromosomes and plasmids. The second function of DNA is to direct and regulate the construction of the proteins necessary to a cell for growth and reproduction in a particular cellular environment.
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DNA contains genetic information, but it does not directly translate nitrogenous bases into proteins. Chromosomes carry genetic material and are passed during reproduction.
DNA Contains Genetic Information:
DNA (deoxyribonucleic acid) is a molecule that carries genetic information in all living organisms. It consists of sequences of nucleotides containing adenine (A), thymine (T), cytosine (C), and guanine (G). The order of these nitrogenous bases forms the genetic code.
DNA Does Not Directly Translate Nitrogenous Bases into Proteins:
The process of translating genetic information into proteins occurs through a two-step process: transcription and translation. DNA serves as a template for RNA (ribonucleic acid) during transcription. Nitrogenous bases in RNA (adenine, uracil, cytosine, and guanine) complement those in DNA. The mRNA (messenger RNA) produced during transcription carries the genetic code to the ribosomes, where translation occurs, converting the code into proteins.
DNA Contains Chromosomes Passed During Reproduction:
DNA is organized into structures called chromosomes. Chromosomes carry genes, which are segments of DNA that encode specific traits. During reproduction, chromosomes are passed from parent to offspring. In humans, for example, each parent contributes half of the chromosomes to the offspring, ensuring genetic diversity.
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What is genetic drift
when you start to feel like someone from the different sex
Answer:
variation in the relative frequency of different genotypes in a small population, owing to the chance disappearance of particular genes as individuals die or do not reproduce.
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What Is the purpose of an amino acid codon chart?
They specify the order of amino acids in a protein from N-terminus to C-terminus
Each group of three bases in mRNA constitutes a codon, and each codon specifies a particular amino acid (hence, it is a triplet code). The mRNA sequence is thus used as a template to assemble—in order—the chain of amino acids that form a protein.