Answer:
B. The native species population would decrease because the nonnative species would be competing for food sources.
Explanation:
This question is describing the effect of invasive species. Invasive species are foreign species i.e. not native to a habitat or area, introduced into the area with the ability to outcompete and negatively affect the native species of that area.
Invasive species compete with the native species for food, space, mate etc., and tend to outgrow them. Hence, if a nonnative predator (invasive) species were introduced to an area, the native predator species in that area would decrease because the nonnative species would be competing for food sources.
Sort the steps of digestion in order from beginning to end.
- The stomach kills some bacteria and breaks food down into chyme.
- Nutrients from dissolved food are absorbed from the small intestine into the bloodstream.
- Water and nutrients are absorbed by the large intestine; chyme becomes waste matter.
- Saliva mixes with food and changes starches into sugars.
Saliva mixes with food and changes starches into sugars is the beginning step of the digestion.
What are the functions of saliva?Saliva is the medium that bathes the taste receptors in the oral cavity and in which aroma and taste compounds are released when food is eaten.
It is composed of water, mucus, proteins, mineral salts, and amylase. As saliva circulates in the mouth cavity it picks up food debris, bacterial cells, and white blood cells.
Saliva moistens the mouth for comfort, lubricates as you chew and swallow, and neutralizes harmful acids. It also kills germs and prevents bad breath, defends against tooth decay and gum disease, protects enamel, and speeds up wound healing.
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A water pipe bursting in the winter is a result of which type of weathering?
A. Biological
B. Exfoliation
C. Chemical
D. Freeze-thaw
Hurry!
Answer:
D
because water expands when it freezes
An ecosystem contains biotic and abiotic
factors. Which of the following would be
an abiotic factor?
A. a microorganism on an animal
B. fungi growing on a tree
C. nutrients in the soil
Answer:
nutrients in the soil is the correct answer
The correct answer is option (c) nutrients in the soil.
What is biotic and abiotic factors ?
Biotic and abiotic are the two essential factors responsible for shaping the ecosystem.The biotic factors refer to all the living beings present in an ecosystem, and the abiotic factors refer to all the non-living components like physical conditions and chemical agents in an ecosystem. Therefore, both the abiotic and biotic resources affect the survival and reproduction process.
Why other options are incorrect?
Option (a), (b) are incorrect as they are biotic factors.
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In a cell, resembling a factory which organelle best describes the factory job at hand? Answer the following.
1. Job:
Conveyor Belt
Job Description:
Moves the products to the shipping department
2. Job: Assembly Line
Job Description:
Products are created from raw materials on the assembly line
3. Job: Packaging and shipping
Job description:
Packs nutrients and sends them off for distribution
Does anybody know a nice place to watch the fireworks tomorrow around the San Francisco area??
Answer:
In the open
Explanation:
Or next to an attraction nearby
In 40 words or fewer, why do you think a 0.1% difference in DNA can
be useful to society?
(The answer is this ⬇️)
The 0.1% difference in DNA
can be used to identify
someone who has
committed a crime or free
someone who hasn't, to determine someone's family
heritage, and to help give a
person more precise
medical treatments.
To anyone who needs it
Answer:
The 0.1% difference in DNA
can be used to identify
someone who has
committed a crime or free
someone who hasn't, to determine someone's family
heritage, and to help give a
person more precise
medical treatments.
Explanation:
Easy points thxx
what is a skeleton and give two characteristics of a mammal
A skeleton is a structural frame that supports an animal body.
The skeletal system of mammals and other vertebrates is broadly divisible functionally into axial and appendicular portions.
There are two major types of skeletons: solid and fluid. Solid skeletons can be internal, called an endoskeleton, or external, called an exoskeleton, and may be further classified as pliant (elastic/movable) or rigid (hard/non-movable).
Fluid skeletons are always internal.
The presence of hair or fur.
A four-chambered heart.
Answer: well I know the skeleton is the bone structure in some living organisms if there a vertebrate
why is DNA a useful form of evidence for developing a phylogenetic tree?
a) DNA never changes
b) DNA is the newest thing in science
c) DNA is passed from generation to generation
Answer:
DNA is useful for a phylogenetic tree because DNA is passed from generation to generation.
the answer;
should be C
HAVE A NİCE DAY
Explanation:
greeetings from Turkey ツ
true or false each human somatic cell contains two copies of each chromosomes for a total of 23 chromosomes
Answer:
I'm pretty sure it might be false
Which of the following types of stars started out on the main sequence with the largest initial mass?
a, b, c, or d?
Answer:
answer: C
Explanation:
hope it helps thanks❤
Why has the number of people in the world increased if the human population growth rate has decreased?
Answer:
Life expectancy has steadily risen.
People live longer lives.
To understand the reasons why the number of people in the world has increased and the population growth rate has decreased, it is necessary to understand how the world's demographic growth rate is calculated.
The calculation is made from the balance between the total number of people alive and the total number of deaths that occurred in a period of time.
Therefore, we can understand that the population growth rate has decreased due to several relevant factors, such as:
Increased life expectancy.The decrease in infant mortality.Rising fertility rates.Urbanization.Economic development.These are some of the reasons that help us understand why population numbers increase and population growth rate decreases.
Economic development, new technologies and a better quality of life for the population are directly related to the decrease in the population growth rate.
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Part B: What is the name of the process that has occurred, and how would it likely occur in this population? (2 points)
Answer:
Explanation:
Please it seems your question is incomplete
Which statement best describes how a catalyst can speed up a chemical reaction?
a. The catalyst decreases the activation energy needed.
b. The catalyst increases the concentration of products.
c. The catalyst binds to enzymes to release substrates.
d. The catalyst increases the concentration of reactants.
D. The catalyst increases the concentration of reactants.
Answer:
D. The catalyst increases the concentration of reactants.
Explanation:
Explain what is happening between these 2 atoms.
Like a magnet they are repelling from each other
Can anyone tell me a simple definition for chemical coordination?
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Chemical Coordination is like the coordination that occurs between 1 or more organs / organ systems in multicellular organisms (for example ↦ humans, animals, birds etc.). During this chemical coordination, cells in the organs / organ systems will produce some chemicals which helps in regulating the activities of other cells in the body.
Example ↦ Endocrine glands in the pancreas secrete hormones which consist of proteins & lipids.
ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ
꧁❣ ʀᴀɪɴʙᴏᴡˢᵃˡᵗ2²2² ࿐
Molecules that do not contain carbon are called inorganic.
true
false
Answer: true
Explanation:
it does contain carbon
Organic molecules contain carbon and inorganic molecules do not contain carbon. Organic molecules are synthesized by living things and inorganic molecules are not. Organic molecules are consumed by living things and inorganic molecules are not. All organic molecules contain carbon, bonded to other elements.
So true.
The solutions in the two arms of a U-tube are separated by a membrane that is permeable to water and glucose but not to sucrose. Side A is filled with a solution of 4M sucrose and 2M glucose. Side B is filled with 2M sucrose and 3M glucose. Initially, the solution in side A, with respect to side B is______________.
Answer:
hypertonic
Explanation:
The solution in side A is hypertonic with respect to side B.
A hypertonic solution is a solution with a higher concentration of solutes in comparison with a neighbouring solution separated by a selectively permeable membrane.
In terms of both sucrose and glucose concentrations, the solution in side A is higher than the solution in side B of the U-tube. Hence, side A is hypertonic to side B.
A hypertonic solution is as opposed to a hypotonic solution with the latter having a lower concentration of solutes as compared to a neighbouring solution. Isotonic solutions have equal solute concentrations with their neighbouring solutions.
Drag the substances into the correct category
water
Reactants Products
oxygen
energy
carbon dioxide
glucose
Answer: 100% on edge
Reactants:: glucose and oxygen
Products:: carbon dioxide, energy, and water
Identify the error in the following statement: “Photosynthesis is a chemical reaction that takes place in the chloroplasts of green plant cells, where chemical energy is used to convert carbon dioxide and water into glucose and oxygen.”
A. “chloroplasts” should be “mitochondria”
B. “water” and “oxygen” should be switched
C. “chemical” should be “light”
D. No errors
Answer:
C light energy instead of chemical energy
Explanation:
Photosynthesis does take place in the chloroplasts (repirarion takes place in the mitochondria)
The equation for photosynthesis is Carbon dioxide + water --> glucose + oxygen (so that statement is correct)
Answer:
D. No errors
Explanation:
what is the name given to the male cell in the flower
Answer:
The name given to the male cell in the flower is called stamens and usually surrounds the pistil.
Explanation:
Hope this helps.
please answer this
Answer:
11. T
12. F
13. F
14. F
15. T
Some broad-spectrum proteases (protein hydrolyzing enzymes) and nucleases (nucleic acid hydrolyzing enzymes) that function in eukaryotic cells have an optimum pH close to 5.0, whereas the cytosol of most cells is closer to pH 7.0. Which part of a eukaryotic cell might you predict to have a low pH suited to maximizing the activity of these enzymes
Answer:
lysosome
Explanation:
The lysosome is a membrane-bound organelle found in nearly all eukaryotic cells. The lysosome contains different types of enzymes (i.e., proteases, nucleases, glycosidases, lipases, phosphatases) which are required for the digestion of macromolecules and microorganisms, and recycle macromolecules in the cell. These enzymes are only active in acidic (lysosome) conditions, and they can be deactivated in case of lysosomal rupture because in the cytosol the pH is neutral to slightly alkaline (∼7.3–7.4).
What term means removing the nucleus from a cell?
nuclear proliferation
enucleation
nuclear fission
disnucleation
Answer:
Enucleation
Explanation:
Identifica la opción que relaciona correctamente ambas columnas.
1a, 2c, 3d, 4b, 5e
1e, 2d, 3c, 4a, 5b
1c, 2e, 3a, 4d, 5b
1d, 2e, 3a, 4b, 5c
Complete question:
Identifica la opción que relaciona correctamente ambas columnas.
1a, 2c, 3d, 4b, 5e 1e, 2d, 3c, 4a, 5b 1c, 2e, 3a, 4d, 5b 1d, 2e, 3a, 4b, 5cncontrarás las columnas en archivos adjuntos
Answer:
1c, 2e, 3a, 4d, 5bExplanation:
Fenotipo: Parte de la información genética que se manifiesta en el individuo.
Puede definirse como la forma de expresión de uno o mas caracteres por parte del individuo. Muchos factores externos al individuo pueden moldear el fenotipo para hacerlo mas apto al medio. Asimismo el fenotypo y el ambiente actuan en forma conjunta para determinar el destino de los genes en el espacio y en el tiempo.
Cromosoma: Conjunto de ADN con forma de bastón o de X.
Todas las unidades genéticas que llevan información de herencia y que regulan los procesos celulares. Pueden distinguirse claramente durante la división cellar, durante la cual los cromosomas se condensan. La molécula de ADN en eucariotas es lineal y larga, y se asocia a proteinas llamadas histonas y a otras que no son histonas, formando la cromatina. Anted de la division celular la cromatina es laxa, y durante la división se condensa y se define en cromosomas. Cada cromosoma porta diferentes genes.
Alelo: Variante que determina un caracter (dominante or recesivo)
Los alelos son las distintas formas en las que un gen puede expresarse. Son las formas alternativas de un mismo gen. Resultan d la mutación de un gen original. Estas formas codifican para la misma caracteristica, pero exresando un fenotipo distinto al original.
Genotipo: Contiene el paquete completo de información genética
El conjunto de dos o mas alelos que un individuo tiene en un locus particular. Puede ser
HOMOCIGOTA, si el individuo tiene alelos iguales HETEROCIGOTA, si el individuo tiene alelos distintosGen: Información genética específica localizada en el núcleo de la célula. Fragmento de ADN.
Unidad de herencia que es transmitida de padres a hijos, de generación en generación. Estan fisicamente localizados en los cromosomas, por lo que puede definirse como un fragmento de ADN.
why do wild plants need to reproduce sexually as well as asexually ?
Please answer correctly
Answer:
Wild plants would need to reproduce sexually so that there can be variation throughout the species to reduce the number of plants being at risks to certain diseases if the environment is changing. However, the wild plants need to produce asexually if the environment is stable.
Wild plants need to reproduce sexually as well as asexually in order to create variation within a species and lower the number of plants that are susceptible to specific illnesses in a changing environment.
What are wild plants?Wild plants would need to reproduce sexually. However, if the environment is stable, wild plants must reproduce asexually. Since male and female gametes are not mixed, asexual reproduction produces plants that are genetically similar to the parent plant and increases survival.
A seedling formed from a seed matures more slowly and is less robust than a cutting or bud is taken from an older plant.
Therefore, in order to diversify within a species and reduce the number of plants susceptible to specific diseases in a changing environment, wild plants must reproduce both sexually and asexually.
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Formation of an RNA hairpin cannot be the sole factor in the termination of transcription in prokaryotes. Explain why.
Answer:
As the transcription process proceeds, a variety of secondary structures forms by the nascent RNA. t takes place due to the fact that portions of the transcript as complementary base pairs form.
The transcript could be pause but terminate, the hairpin loop causes RNA Pol to pause. There are two different ways to terminate transcription in prokaryotes
- intrinsic termination: in this no external factors required
- Rho protein termination: binds to end of msg and moves along by ATP hydrolysis to catch up (rho is faster)
In 1980, scientists suggested that the great mass extinction of 65 million years ago (which ended the reign of dinosaurs) may have been caused by a large impact from space. What discovery gives a big boost to this idea
Answer: the discovery of a buried crater (about 200 km across) near Chicxulub, Mexico
The discovery of a buried crater (about 200 km across) near Chicxulub, Mexico.
What is extinction?
Extinction is defined as the disappearance of an organism or a group of organisms as a result of environmental factors or changes in the members' evolutionary processes.
It can also be defined as an evolutionary process that causes a species or population to go extinct.
When there are no longer any living members of a certain animal or plant species anywhere in the globe, the species has become extinct.
Generally speaking, species disappear for the following reasons:
Genetic and demographic phenomena.Habitat destruction in the wild.Species introduction that are invasive.Global warmingHunting and illicit trade.Thus the discovery of a buried crater (about 200 km across) near Chicxulub, Mexico.
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What is the main source of nutrients for autotrophs?
Answer:
Most autotrophs use a process called photosynthesis to make their food. In photosynthesis, autotrophs use energy from the sun to convert water from the soil and carbon dioxide from the air into a nutrient called glucose.
Which cell feature is responsible for making proteins?
Answer
FRUITS AND VEGETABLE
A 70-year-old male presents with back pain, fever, and weight loss. He reports that he had a recent respiratory infection from which he thought he recovered. Tests revealed increased white blood cell count, and a diagnosis of endogenous osteomyelitis was made. The primary organism causing this condition is
Answer:
This question lacks options, options are:
a.Fatigue fracture
b.Stress fracture
c.Pathologic fracture
d.Greenstick fracture.
The correct answer is c.
Explanation:
A pathological fracture is one produced in a weakened bone as a result of trauma that would not cause such an effect on bones that had their composition, resistance or flexibility properties at the correct levels, that is, a pathological fracture is any loss of bone continuity that occurs in a weakened bone, secondary this weakness to the development of a disease. Endogenous osteomyelitis is a blood-borne bacterial infection that spreads to the bone.
