a population of deer was threatened with overpopulation until cheetahs were imported. after a couple of years, there were fewer deer, but the average running speed of the deer had increased. this is an example of Predator-prey coevolution.
Overpopulation is a condition when a species have so much population that the carrying capacities of the nature starts getting exhausted.
Overpopulation is also not good for a population because it will causes depletion of the resources which will ultimately lead to the extinction of the species.
When the cheetahs are introduced in an area overpopulated with deer species, they will keep the population in check. Also, as deer have to save itself they have to increase their running speed to survive and hence evolve with same adaptation.
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4
Which of the following is true of asexual
reproduction?
A. It requires seeds.
B. It requires flowers.
C. It requires only one parent.
D. It requires sperm and eggs.
one molecule of dietary glucose can be oxidized through glycolysis and the citric acid cycle to generate a maximum of 32 molecules of atp. calculate the fraction of this energy that is lost when the glucose is stored as glycogen before it is catabolized.
One molecule of dietary glucose is oxidized through glycolysis and the citric acid cycle in order to generate a maximum of 32 molecules of ATP. Then 2/32 of this energy is lost when the glucose is stored as glycogen before it is catabolized.
If a dietary glucose is provided directly into the glycolysis pathways, a total of 32 molecules of the Adenosine triphosphate (ATP) are produced per molecule of glucose. Glycolysis provides a total production of 2 ATP per molecule of glucose.
Although the citric acid cycle (CAC) produces an additional 2 ATP per molecule of glucose. Oxidative Phosphorylation provide total of 28 ATP from the products of glucose catabolism. So, 32 molecules of ATP are produced in this way. A cell could even store dietary glucose for later use, in the form of glycogen.
However, In this pathway, 1 ATP is consumed to produce G1P (glucose-1-phosphate), and then it reacts with UTP (uridine triphosphate) to produce a UDP-glucose (uridine-diphospho-glucose). This step indirectly consumes ATP in form of a UTP substrate. 2 molecules of ATP consumed per molecule of glucose added to a glycogen polymer.
Therefore, If two molecules of ATP are consumed for storing glucose as glycogen. So, 6.25% or 2/32 of the energy stored as glucose is lost when it is stored as a glycogen.
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Oceans are small rivers that join the main river. *
true
False
Which of the following is true of enzymes?
A.Enzyme function is increased if the shape of an enzyme is changed.
B.Enzyme function is independent of physical and chemical environmental factors such as pH and temperature.
C.Enzyme function is dependent on physical and chemical environmental factors such as pH and temperature.
D.Enzymes increase the rate of chemical reaction by providing activation energy to the substrate.
Answer:
a
Explanation:
PLEASE HELP ASAP
95 POINTS!!!!
Answer:
5729.23 cubic meters
Explanation:
Which way of preparing food models a physical change that happens to food within the digestive system
Select one
Grinding fruit in a blender
Burning a marshmallow over a flame
Frying an egg in a skillet
Freezing a juice in an ice pop mold
Answer:
im pretty sure its
Frying an egg in a skillet
Explanation:
im so sry if im wrong have a good day/night (:
Which is not a characteristic of populations?
A. They are subject to limiting factors such as food supply and predators.
B. They grow and decline over time.
C. They interact with other populations in an ecosystem
D. They consist of all the species in a defined area.
Answer:
D is not a characteristic of populations
Explanation:
Populations are one species in a defined area, not all.
The one that is not a characteristic of the population is they consist of all the species in a defined area. The correct option is D.
What is a population?The human population has grown enormously. It has primarily accomplished this by producing a surplus of food and learning how to deal with illness. The fastest growth occurred between 1955 and 1975.
This is a term that refers to the human population that lives in a specific geographical area. The map depicts the concentration of the human population on the planet from all of the continents depicted.
A population pyramid is a diagram that depicts the total number of organisms that are successfully living and interacting with one another in a specific location at a given time. As a result, the population pyramid predicts that the population is increasing.
Therefore, the correct option is D. They consist of all the species in a defined area.
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u l, gu zh, li y, et al. genomic landscapeof cd341hematopoietic cells in myelo-dysplastic syndrome and gene mutationprofiles as prognostic markers.proc natlacad sci usa. 2014;111(23):8589-8594.
A set of malignancies known as myelodysplastic syndromes (also known as myelodysplasia) prevent your blood stem cells from developing into healthy blood cells.
What is myelodysplastic syndrome?A collection of conditions known as myelodysplastic syndrome (MDS) include dysplasia of bone marrow myeloid lineages, inefficient hematopoiesis, and frequent development of acute myeloid leukemia (AML). CD34(+) hematopoietic stem/progenitor cells (HSPCs) from eight patients of refractory anemia with excess blasts (RAEB), a high-risk subtype of MDS, were subjected to whole-genome sequencing. 96 protein-coding genes had mutations that were determined to be similar to those reported in AML in terms of nucleotide substitution patterns. In six of the eight cases where subclones were found, clonal architecture analysis indicated them, but HSPC expansion status was heterogeneous according to mutation detection of CD34(+) versus CD34(-) cells.Learn more about the myelodysplastic syndrome with the help of the given link:
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If a molecule of DNA has 30% Adenine how much of the other bases will be present?
Thymine: 30% Cytosine: 15% Guanine: 15%
Thymine: 30% Cytosine: 15% Guanine: 15%
Thymine: 30% Cytosine: 20% Guanine: 20%
Thymine: 30% Cytosine: 20% Guanine: 20%
Thymine: 15% Cytosine: 30% Guanine: 30%
Thymine: 15% Cytosine: 30% Guanine: 30%
Thymine: 20% Cytosine: 30% Guanine: 30%
Answer:
If a DNA molecule has 30% Adenine the percentage of the other bases is Thymine: 30% Cytosine: 20% Guanine: 20%.
Explanation:
When the percentage that a base has in a DNA molecule is given, the percentage of the other bases can be known using the Chargaff's base pair rule.
A DNA molecule has the information of the genome of a living being, according to a specific sequence of its nitrogenous bases adenine, guanine, cytosine and thymine.
Chargaff was able to establish that in a DNA molecule the ratio of purine : pyrimidine of 1:1, so there must be the same amount of thymine as adenine and a similar amount of guanine for the cytosine, taking into account the complementarity of bases.
Taking into account the law of the base pair, if in a DNA chain there is 30% of Adenine, in the molecule there is:
Adenine 30%. Thymine 30%. Cytosine 20%. Guanine 20%. Total ..... 100%In this case, the Chargaff rule is useful to determine the percentage of nitrogenous bases that exist in a DNA molecule, knowing the percentage of a single base.
2. How would the amount of oxygen absorbed by the cells be different in an athlete who is blood doping, compared to a normal athlete?
Answer:
in an athlete that os blood doping there wooed be more oxygen absorbed-by the read blood cells and will get less
Blood doping frequently results in an increase in the level of hemoglobin in the blood. An oxygen-carrying protein found in blood is called hemoglobin. The red blood cells of an athlete who uses blood doping should absorb more oxygen and will get less.
What is blood doping of athlete?Blood doping is a type of doping in which more red blood cells are added to the bloodstream to improve sports performance.
An athlete's aerobic capacity (VO2 max) and endurance can be enhanced by having more of these blood cells, since they transport oxygen from the lungs to the muscles.
Athletes in a range of endurance sports, such as swimming, cycling, and skiing, use blood doping.
Some people view the use of plasma injections by athletes in other sports as a sort of blood doping because they help them recover physically faster between competitions.
Therefore, amount of oxygen absorbed by the cells be different in an athlete who is blood doping, compared to a normal athlete.
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pls help me ill give brainliest .
help please and thank you
Answer:
d
Explanation:
what type of symbiotic relationship do rhizobium and plants have?
Explain why the biomass decreases as you move up trophic levels. When would the opposite be true?
Answer:
.
Explanation:
Biomass decreases as you move up because there is a larger amount of producers than of carnivores at the upper trophic levels.
Identify the body planes and cavities in these diagrams.
The body planes and cavities in the diagram are: (11) Sagittal body plane; (12) Coronal body plane; (13) Transverse body plane; (14) Dorsal cavity; (15) Thoracic cavity; (16) Abdominal cavity; (17) Pelvic cavity; and (18) Ventral cavity.
The body planes are the geometrical lunes through which the body can be divided into two halves. These are hypothetically decided planes. There are three types of body planes: coronal, sagittal and transverse.
The body cavities are the hollow spaces that hold the organs and tissues of the body. These cavities are lined and separated by membranes. There are two large body cavities in humans: the dorsal and ventral. They further constitute of various small body cavities.
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Which of the following could be seen directly In a karyotype of an unborn baby?
Answer: teeth.
Explanation:
what evidence do we get from fossils?
Answer: This evidence reveals what our planet was like long ago. Fossils also show how animals changed over time and how they are related to one another.
Explanation:
Which example is not an organism?
bacteria
lung
mold
human
Answer:
Lung
Explanation:
Please help I will mark you brainliest
How are plants and animals similar and different as to how they transport molecules throughout their bodies?
PLEASE HELP ME, WILL GIVE BRAINLIEST!!
Let's do some calculation! Using the information below, calculate the speed of the wave. MAKE SURE TO INCLUDE YOUR UNITS!
wavelength = 3.7 cm and frequency = 8.4 Hz
Answer:
0.31m/s
Explanation:
Given parameters:
Wavelength = 3.7cm
Frequency = 8.4Hz
Unknown:
Speed of the wave = ?
Solution:
The speed of a wave is the product of its wavelength and frequency. It is mathematically expressed as;
Speed of the wave = Frequency x Wavelength
Convert cm to m;
100cm = 1 m
3.7cm = 0.037m
Now,
Speed of the wave = 8.4 x 0.037 = 0.31m/s
please answer this question for me
Answer:
Structure Z is the cell wall and is very strong. It keeps out pathogens because of its thick layer
Explanation:
the discovery of microbes as discrete entities sharing many of the characteristics of larger plants and animals was made possible by the .
The discovery of microbes as discrete entities sharing many of the characteristics of larger plants and animals was made possible by the development of microscope.
What is a Microscope?This is referred to an instrument which is commonly used in the laboratory to examine objects that are too small to be seen by the na-ked eyes. It does this by the process of enlargement of the objects and it brought about new discoveries about plants and animals.
It made the organelles present in cells to be more visible and their similarities and differences were noted which were also compared to that of microbes so as to find out their common ancestry.
This is therefore the reason why discovery of microbes as discrete entities sharing many of the characteristics of larger plants and animals was made possible by the instrument.
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what is the chloroplasts?
8. What types of data can be controlled in an experiment? Give an explanation of each.
behavioral and antennal responses of drosophila suzukii (diptera: drosophilidae) to volatiles from fruit extracts. environ. entomol.
Behavioral and antennal responses of drosophila suzukii Diptera Drosophilidae to volatiles from fruit extracts. environ. Entomol.
Drosophila melanogaster, recognized colloquially because the fruit fly stays one of the most usually used model organisms for biomedical science. For multiple hundred years,
Drosophila is derived from the Greek phrase drósos method dew loving. They belong to the Droso Aphididae family and are maximum regularly called fruit flies or regularly called vinegar, wine, or pomace flies. Their fundamental distinguishing individual is to stay on fruits, which are ripped or rotten.
Drosophila has the most effective 4 pairs of chromosomes which might be smooth to examine. The Drosophila genome is considerably homologous to that of the human genome which makes the have a look at certain genes less difficult.
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In these experiments, researchers are taking brain cells from patients with disorders like autism and schizophrenia and using them to grow tissue which produce organoids miniature versions of the body's organs. How might studying these brain organoids help patients with these disorders?
Answer:
It could help in knowing in detail the etiology of the pathology, in order to evaluate the prognosis and its most appropriate treatment.
Explanation:
When cultivating the cells, it is possible to observe if they worsen the pathology before certain means or stimuli, or even the consumption of drugs and derivatives.
Not only with that, the beginning of this pathology is called etiology, when the etiology is studied in detail, the ideal treatment is the one that is determined, since the focus to attack is known so that these pathologies do not advance or even revert .
HELP HAHA PLS GRADES ARE DUE TODAY
Answer:
false and chemical
Explanation:
Answer:
1 t 2 physcal
Explanation:
what is abberant motor behavior
Answer:
according to whether the "activity disturbance"
Explanation:
brainest plz
Answer:
dunno tbh g
Explanation:
what structure pull the chromosomes apart
Answer:
Spindles
Explanation:
brainliest?
Answer:
mitotic spindle
Explanation:
Which of the following best describe the term “crossing over”?
A. n exchange of information between two homologous chromosomes
B. molecular interaction between two sister chromatids
C. molecular interaction between two non-sister chromatids
D. A separation of two sister chromatids
Answer:
A - An exchange of information between two homologous chromosomes
Explanation: