Students planted three bean seeds. after several days, they observed that the seeds' roots were growing downward into the soil. which type of topism were the roots displaying?
In contrast to cooperative hunting, which are benefits of herding only? Check all that apply. foraging reproduction divison of labor protection aerodynamic efficiency hydrodynamic efficiency
OPTION A, B, C.
The benefits of herding as opposed to cooperative hunting include efficient foraging, increased protection, and division of labor among the herd members, all of which contribute to survival and sustenance of the group.
Explanation:In contrast to cooperative hunting, there are distinct benefits for animals living in herding societies. The key benefits of herding include foraging, protection, and division of labor.
Foraging becomes more efficient in herds. Animals can cover larger areas and gather food resources more swiftly and with reduced risks. This gathering of food resource is often guided by the herding society's knowledge about their environment, vegetation, and water sources.
The protection element is a crucial advantage of herd living. Members of a herd can look out for one another and provide greater defense against predators. This is especially notable in 'clumped' population distributions, where the safety of individuals is improved within the group structure.
Last but not least, division of labor is another crucial benefit. Tasks within the herd can be distributed among different members, creating a more balanced and efficient system. This includes aspects like taking care of young ones, sourcing food, or even roles in herd defense.
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________ is the arrangement in which two dissimilar organisms live together.
The term coined to signify a drop in testosterone levels in older men is:
Which of the following life processes has evolved and been conserved through nearly every modern organism?
Answer:
Metabolism
Explanation:
I had the same question
Which is not be a mechanism through which an infectious disease can emerge?
a. decreased transmissibility
b. different portal of entry
c. increased incidence
d. increased virulence?
What capillaries have endothelial cells pierced by filtration pores that allow the rapid passage of small molecules?
Carbon monoxide poisoning in homes is an unlikely health problem. True of False .... I put False
What are three ways a synthetic polymers affect the environment
Answer:
A - Some synthetic polymers use materials from Earth that are nonrenewable.
B - They can end up as waste products that sometimes can’t be recycled.
C - They sometimes release toxins into the environment.
Explanation:
Not D - Synthetics are made so they aren't in limited supply
Not E - While this may be true it has not effect on the environment
A device in which a chain reaction is initiated and controlled with the purpose of producing electrical power is called _____.
A. a nuclear reactor
B. breeder rods
C. protons and neutrons
D. spent fuel
A device in which a chain reaction is initiated and controlled with the purpose of producing electrical power is called a nuclear reactor.
A nuclear reactor is a device that is created to control a chain reaction in order to produce a steady flow of neutrons created by the fission of heavy nuclei. Nuclear reactors are differentiated by their uses into research reactors and power reactors. The research reactors are used for conducting basic research and to produce medical isotopes for cancer treatment and imaging, while power reactors are mainly used for generating electricity.
Which of the following are possible causes of global warming? Check all that apply.
human activitydifferences in emitted energy from Earthnatural fluctuationschanges in distance to the Sunpoor measurement
Answer: Human Activity and Natural Fluctuations
Explanation:
A. Human activity
C. Natural fluctuations
Global WarmingGlobal warming usually refers to human-induced warming of the Earth system.
Causes of Global Warming:Greenhouse Gases, Variations in the Sun's Intensity, Industrial Activity, Agricultural Activity,Deforestation, Natural fluctuations.Thus, the possible causes of global warming are options A and C.
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The most abundant gases in the earth's present day atmosphere (by volume) are ____.
Why do you feel hot and cold at the same time when you're sick?
Which type of RNA is NOT involved in the translation process shown in the image?
When assessing a client who gave birth 12 hours ago, the nurse measures an oral temperature of 99.6° f (37.5° c), a heart rate of 82 beats/minute, a respiratory rate of 18 breaths/minute, and a blood pressure of 116/70 mm hg. which nursing action is most appropriate?
The nursing action appropriate for this kind of case is encouraging
increased fluid intake
The rationale behind this is that around the first day of
postpartum, slight dehydration usually causes a slightly elevated temperature;
the nurse should also encourage increased fluid intake to counter dehydration.
Aspirin is contraindicated in postpartum clients because its anticoagulant
effects may induce the risk of hemorrhage. Reassessment in vital signs every 4
hours is sufficient to evaluate the effectiveness of hydration measures. If the
patient’s oral temperature exceeds 38 degrees Celsius or 100.4 degrees
Fahrenheit, the nurse should request an antibiotic order since this may suggest
an infection.
Review the water cycle diagram below. What would be the effect on the mountains if the ocean were not nearby?
A. Condensation rates would increase dramatically.
B. Vapor pressure and atmospheric pressure would increase.
C. Snowmelt runoff would increase slightly.
D. There would be much less precipitation and evaporation.
Answer:
D
Explanation:
I just the flvs test.
In guinea pigs, dark hair (D) is dominant over light hair (d) and curly hair (C) is dominant over smooth hair (c). Complete a dihybrid cross for parents with the genotypes: DdCc × DdCc and answer the following in complete sentences.
1. Describe how you would set up a Punnett square for this cross.
2. List the likelihood of each possible offspring genotype.
3. List the likelihood of each possible offspring phenotype.
A complex, unlearned, and fixed pattern of behavior common to all members of a species is called:
The complex, unlearned, and fixed pattern of behavior common to all members of a species is called an instinct. Instincts are innate behaviors that are genetically programmed and are typically essential for survival or reproductive success.
These behaviors are not learned or acquired through experience but are instead present from birth. Instincts can include various behaviors such as mating rituals, migration, territorial defense, parental care, and hunting strategies.
They are characteristic of a particular species and are often crucial for the survival and adaptation of individuals within that species.
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Scientists are conducting eDNA surveillance. Why would the scientists use a control sample that is known to be from bighead carp?
A: To see if samples contain the same DNA
B: To increase the number of DNA strands
C: To identify a new species of carp
D: To produce multiple banding patterns
The answer is A. to see if samples contain the same DNA.
Answer: Option A
Explanation: This method employed for the surveillance for the detection of any invasive species in the water sample.
A control sample of the Bighead Carp is used as a control to check whether the sample that is tested includes the same DNA or not.
This method is used to find out whether the sample which is used for testing includes the DNA of any invasive species.
What rock gets flattened when Gneiss is formed?
Science help
How does a scientist compare the age of a rock with other rocks?
(a) by determining the relative age of the rock
(b) by deciding the exact date the rock was formed
(c) by finding the level of radioactive isotope decay in the rock
(d) by finding the absolute age of the rock
2. Which of the following could be used to interpret the geologic history of a location?
(a) human remains
(b) atmospheric components
(c) rock layers
(d) plant life
3. Geologists frequently look at the relationships among rock layers. Which statement best describes the information geologists get from studying these relationships?
(a) They can tell how old the rocks are.
(b) They get a sense of which rocks are the most valuable.
(c) They get a sense of the history of the area they are investigating.
(d) They can tell how dense the rocks are.
4. Which of the following events separate geologic time into eras and periods?
(a)the appearance and disappearance of groups of organisms
(b)the number of earthquakes occurring at that time
(c)the appearance and disappearance of volcanoes
(d)the creation of new ocean ridges
5. Which of the following provides evidence that has helped earth scientists determine the age of the earth more precisely?
(a) tree rings
(b)earth's distance from the sun
(c)helium dating
(d)radioactive dating
6. While collecting samples or rocks, a scientist collects several samples that contain fossils. What is most likely the type of rock in the scientist's samples?
(a)Mineral
(b)Igneous
(c)Sedimentary
(d)Metamorphic
7. If a sandstone in contact with a granite contains fragments of the granite, what can you infer?
(a)The granite was intruded into the sandstone.
(b)The granite is older than the sandstone.
(c)The sandstone and granite are the same age.
(d)The granite is younger than the sandstone
(d) by finding the absolute age of the rock
Explanation:The relative age of a rock is not an exact number or age; rather it's the comparison of one rock or fossil to another to determine which one is older or younger. Scientists use carbon dating to calculate the age of a rock. Organic material from the rock is tested and that information is used to calculate the estimated age.
C) Rock layers
Explanation:The Fossil Record and Geologic Time Fossils of plants and animals are present in some rocks. These fossils contribute to our understanding of geologic time and they show us the time span when and how a civilization used to live.
Answer to Q3:
(c) They get a sense of the history of the area they are investigating.
Explanation:Fossils scaled into rocks are fundamental to the geologic time scale. For instance rocks formed during the Proterozoic Eon may have fossils of relative simple organisms, such as bacteria, algae, and wormlike animals while Rocks formed during the Phanerozoic Eon may have fossils of complex animals and plants such as dinosaurs, mammals, and trees.
Answer to Q4:
(a)the appearance and disappearance of groups of organisms
Explanation:the appearance and disappearance of groups of organisms in different geological eras of earth history shows the time span of that era. This time span can be easily determined from the fossils present on sedimentary rocks because they show the family or group of those species which were present in that particular time period.
Answer to Q5:
(d)radioactive dating
Explanation:Scientists use radioactivity techniques to determine the age of earth. As we know radioactive substances emit energy continuously and they have a certain half life period so calculating the half life period can show us the age of earth by comparing the half lives of different radioactive elements. For example in uranium-lead dating, for instance, the radioactive decay of uranium into lead proceeds at a reliable rate.
Answer to Q6:
(c)Sedimentary
Explanation:Mostly sedimentary rocks like limestone and shale are the best options in the formation of fossils. Igneous rocks are formed directly from hot lava that is why they would not be able to preserve any remnants of living organisms that fall in it during its formation.
Answer to Q7:
The granite is older than the sandstone.
Explanation:The principle of inclusions states that with sedimentary rocks, if inclusions are found in a formation, then the inclusions must be older than the formation that contains them. So in simple words pieces of the older rock will be included in the younger rock therefore option B is the correct answer.
Nuris is writing a paper on the scientist who first named cells after studying cork under a microscope. Who is her paper about?
(Select all that apply.) Ecosystems _____.
can be small
can be large
are made of biomes
only have living parts
have nonliving parts
The answers would be "can be small", "can be large", and "have nonliving parts". This is 100% correct, because I got it right on my lesson.
Answer:
The answers are:
- Can be small
- Can be large
- Have nonliving parts
Explanation:
An ecosystem is a biological system constituted by a community of living organisms and the physical environment where they are related (that is, it is composed of both living and non-living parts). It is a unit composed of interdependent organisms that share the same habitat. A biome is made up of many similar ecosystems, so an ecosystem is much smaller than a biome, although the size of the ecosystems can vary (they can be large or they can be small).
Describe three approaches used to slow down the rate of extinction
The three ways or approaches that one can do to slow down extinction or in a way to preserve biodiversity are the following;
- Breeding endangered species that may preserve and multiply their species
- Protecting the endangered species in a way that they should not be held captive, be sold or kill for materialistic goods or food products
- Prevention of using animal testing in factories and companies
Salutations! would you kindly help me out on this question?
The diagram shows embryo development of four different animals. How is this
evidence to sugest that life changes over time?
A: Stiking similarites at early developmental stages is evidence that they came from a common ancestor.
B: Late-stage embyronic development illustrates how aacquired characteristics have caused these to become more differentiated over time.
C: These stages indicate that animals within a species must have changed over time.
D: The DNA of all these life forms begins exaclty the same and then changes over time as it replicates to produce the orgainsms different traits
When dna replication halts in a polymerase chain reaction, owing to the incorporation of a tagged base into a growing dna chain, a(n) _____ results?
How is the California quail adapted to live in the chaparral biome?
Answer:
They can acquire their moisture from insects and succulent vegetation but in extreme period the chaparral birds can fly to distant water sources in this arid biome they must leave for looking water, with theirs color they can camouflage in the foliage against the depredation. During drought years, the plants eaten by California quail inhibit its reproduction because of several compounds chemicals.
Why does your breathing rate increase when you exercise?
When the cell excretes sodium from within, against the natural tendency of matter, it is performing _____.
passive diffusion
facilitated diffusion
active transport
pinocytosis
When the cell excretes sodium from within, against the natural tendency of matter, it is performing active transport.
In active transport the molecules move across a membrane from the region of lower concentration to a region of higher concentration using the cellular energy for the motion against the concentration gradient.
The cell excreting sodium from within is a part of the sodium potassium pump. In sodium-potassium pump the sodium ions are transported from inside the cell to outside actively although the concentration of sodium is higher outside the cell. The energy which is used to transport sodium from inside to outside and potassium from outside to inside both against the concentration gradient is obtained through the breakdown of the ATP molecule.
Stimulation of the vagus nerve in the baroreceptor reflex causes __________.
The stimulation of the vagus nerve in the baroreceptor reflex leads to parasympathetic stimulation, which decreases heart rate and cardiac output to help lower high blood pressure and maintain vascular homeostasis.
The baroreceptor reflex is a critical component of the body's ability to maintain vascular homeostasis. When blood pressure rises too high, the baroreceptors increase their firing rate, leading to parasympathetic stimulation of the vagus nerve, which slows the heart. Conversely, when blood pressure becomes too low, the rate of baroreceptor firing decreases, prompting an increase in sympathetic stimulation and a reduction in parasympathetic tone to raise the heart rate and blood pressure.