Answer:
The correct answer is - option B. The presence of pups is the independent variable, and the frequency of sentinel behavior is the dependent variable.
Explanation:
The independent variable in a study or experiment is a variable that is subject to change or manipulated to see the effect on the result of the study by influencing the dependent variable. In this study, the independent variable that is manipulated is the presence of the pups to see what is led to the behavior of meerkats.
The dependent variable is a variable that is influenced in a study by the independent variable and led to the result of the study as the frequency of sentinel behavior is influenced by the presence of the pups so the dependent variable here is the frequency of sentinel behavior.
Geologists can use sedimentary rock to learn about climate in the past.
True
False
Answer:True
Explanation:
Why do most of the marine species live at or near the surface of the ocean
Answer:
Most marine organisms live within the sunlit surface waters. Strong sunlight supports photosynthesis by marine algae. Algae either directly or indirectly provide food for the majority of organisms. ... Most marine animals also live near the surface because this is where they can find food.
Explanation:
Brainliest please?
help please i beg i don’t know
Answer:B, D
Explanation:
When the roller coaster starts flying down the hill, it gains kinetic energy and loses potential energy.
Name five phycocolloids
Answer:
ALGAE
…walls of many seaweeds contain phycocolloids (algal colloids) that can be extracted by hot water. The three major phycocolloids are alginates, agars, and carrageenans. Alginates are extracted primarily from brown seaweeds, and agar and carrageenan are extracted from red seaweeds. These phycocolloids are polymers of chemically modified sugar molecules, such…
Explanation:
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using realistic science examples, explain how you would improve a cats litter box??
Answer:
Sir yes
Explanation:
Etc
how was the San Andreas Fault formed?
the creation of land in a subduction zone
consistent seismic activity
the kinetic energy in a rift valley
two plates moving past each other
Answer:
The correct answer is - two plates moving past each other.
Explanation:
The San Andreas Fault is a boundary or long valley that present at or represent the two different tectonic plates, North America plate meets the Pacific plate.
The origin of this valley is almost 30 million years ago in California. At that time both tectonic plates the Pacific Plate and the North America plate first met and slid past one another to make a boundary called a strike-slip fault. These are cause the biggest earthquakes.
Answer:two plates moving past each other
Explanation:
how did Gregor Mendel learn about heredity?
A. he collected detailed information on inherited traits of pea plants
B. he carefully observed the chromosomes of pea plants and collected data on them
C. he was a monk that studied how bees mated with each other and what their offspring looked like
D. he bred animals for desired traits and collected data on the offspring
E. he did research about the DNA of pea plants and kept detailed records
Gregor Mendel learn about heredity by collecting detailed information on inherited traits of pea plants. Thus, the correct option is A.
What is Heredity?Heredity may be defined as the process by which characters are transferred from one generation to the next generation. It is also known as inheritance.
Gregor Johann Mendel is known as the father of genetics because he gives the concept of genetics and heredity by demonstrating his experiments on the garden pea plants (Pisum sativum).
He collected descriptive information on characters like seed shape, seed color, flower color, pod shape, pod color, flower position, and stem height as well as the inherited traits of such characters.
Therefore, the correct option is A.
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Select the best answers from the drop-down menus.
regulate organ function.
control voluntary muscle movements.
control involuntary muscle movements.
Answer:
voluntary muscle movements
Answer: general visceral nerves
Somatic nerves
Special visceral nerves
Explanation:
100 POINTS PLZ!!! AND DO NOT SAY I.DK IT IS SO MEAN!! JUST DON"T ANSWER IT IF YOU DON"T KNOW THE ANSWER!
Use the library and other reference materials to research lupus. Then, write a 400-word report on what you have learned. Be sure to include symptoms, causes, and treatments.
Answer:
The one I chose is very interesting I think you will enjoy it.
Lupus is a multisystem disease in which autoantibody production can lead to inflammation and tissue
damage in any part of the body. The pathogenesis of lupus is thought to be a combination of
predisposing genetic factors and environmental factors such as medication, or infectious agents that
trigger an abnormal immune response. This occurs when Suppressor T cells fail to suppress, in other words there are defects in cell signaling
hope this helps <333 luv yuu
Explanation:
Answer:
he is correct
Explanation:
What are the most reactive elements of the periodic table
Answer:
The reactivity of alkali metals increases from the top to the bottom of the group, so lithium (Li) is the least reactive alkali metal and francium (Fr) is the most reactive.
All of the following statements about a pure substance are true except:
Answer:
I think the one that is not true is it can always be easily seperated physically.
Explanation:
please answer quick and honestly, will choose brainliest. 16 points
How can you use isobars to determine approximate wind speed and direction using the pressure map?
Answer:
Since variations in air pressure drive the winds on Earth, isobars also give meteorologists an easy way to assess wind direction and speed. Closely spaced isobars indicate large pressure changes over a small area, causing wind speeds to increase.
Hope this helped! :}
2. The researchers in the film spent a month collecting and identifying various species of animals and plants. These species were then added to a database of all species in Gorongosa. Provide two (2) reasons why building a species database will be useful for the restoration project.
Answer:
Importance of building specie database, for restoration projects.
Explanation:
Restoration implies human intervention, for renewing - degraded ecosystems & habitats.
Building species data base is important for this, as - wildlife is an integral part of habitat. Understanding their favourable living ambience in ecosystem - like temperature, humidity, sunlight & water access and migration patterns is important - in effort to restore environment in real sense.
AWNSER ASAP
Identify the two careers that do not require any college education.
dental assistant
dietitian
home health aide
physician assistant
social worker
Answer:
the two careers that don't require any college education are a dental assistant and a home health aide
Explanation:
using the process of elimination....
a dietitian requires a bachelor's degree,
physician assistant needs a masters degree (in most cases)
social worker needs a bachelor's degree
this means the other 2 remaining options...
dental assistant & a home health aide do not require a college education
Which layer of soil contains large rocks that have not been weathered yet?
A. Topsoil
B. Dirt
C. Bedrock
Answer: Option C.
Bedrock
Explanation:
Bedrock consist of hard rock that has not been weathered because bedrock is the hard rock that is found under surface materials like soil and are components of quartzite, limestone , basalt and granite. It is a solid and it is bound very tight. It also form parent rock and it can remain on the top of the soil which later weathered and form soil and can be taken away by wind, water, gravity e.t.c.
How many muscle types do mollusca have?
Answer:
Mollusca is one of the most diverse groups of animals on the planet, with at least 50,000 living species (and more likely around 200,000). It includes such familiar organisms as snails, octopuses, squid, clams, scallops, oysters, and chitons.
Explanation:
Answer:
i beleive they have 5 in total
How would my life change if I stopped using plastic? Use your brain and imagine.
Answer:
your waste would cut down and your carbon footprint would shrink and also you can call yourself a tree hugger.
Explanation:
Answer:
Explanation:
The ocean and lands will be cleaner. However, certain materials made of plastic won't exist. Humans may end up using more fabrics or recyclable materials (like what Birkenstocks are made of).
Earth's crustal bedrock at the Mid-Atlantic Ridge is.
composed mostly of
1. Basalt with a density of 2.7 g/cm3
2. basalt, with a density of 3.0 g/cm
3. granite, with a density of 2.7 g/cm3
4.granite, with a density of 3.0 g/cm
Answer: basalt, with a density of 3.0 g/cm^3
Explanation:
Earth's crystal bedrock on the Mid-Atlantic Ridge consists typically of basalt, with a density of 2.7 g/cm3.
What is Mid-Atlantic Ridge?A petrographic have a look at of rocks dredged from the Mid-Atlantic Ridge via way of means of the studies vessel, Atlantis, in 1947 and 1948 suggests that olivine basalt and basalt are the maximum not unusualplace rock kinds of the Mid-Atlantic Ridge.
If magma cools quickly, as an example whilst basalt lava erupts from a volcano, then many crystals shape very quickly, and the ensuing rock is fine-grained, with crystals commonly much less than 1mm in size.
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Question 9 of 26-0OS
What does the passage and diagram above best imply?
Cellular Respiration
Oy
Carte
Diside
ATE
Mitochondria
Glucose
Water
CH, O, + 6O, CO + 6H,O +ATP
.
Cellular respiration is a process that converts glucose into chemical energy (ATP) in the chloroplast of the cell
The main product of cellular respiration is ATP; waste products include carbon dioxide and water
o Oxygen and glucose are both products of cellular respiration
Cellular respiration refers to the metabolic reactions and processes which occur in the nucleus of organisms
Previous
Answer:
cellular respiration is a process that converts glucose into chemical energy (atp) in the chloroplasts of the cell
Explanation:
give any two medical uses of oxygen
Explanation:
Medical oxygen is used to: ... restore tissue oxygen tension by improving oxygen availability in a wide range of conditions such as COPD, cyanosis, shock, severe hemorrhage, carbon monoxide poisoning, major trauma, cardiac/respiratory arrest. aid resuscitation.
this is you're answer please give me thanks
Answer:
In cells, oxygen is needed for aerobic respiration, which allows for the extraction of energy from ingested foods. Thus supplemental oxygen at home and in hospitals is vital for those with breathing disorders such as emphysema.
Compressed oxygen tanks are used by mountaineers at high elevations to counteract the decreased O2 pressure at these altitudes.
Supplemental oxygen is needed for surgical patients intentionally rendered paralyzed for medical procedures, in which "heart-lung machines" keep their vital functions going.
Oxygen can be used as a sterilizing agent to kill certain anaerobic bacteria that are killed by sufficient exposure to the gas.
Industrial Uses of Oxygen:
Oxygen is needed for the reaction that converts carbon to carbon dioxide gas in steel working, which takes place under high temperatures in a blast furnace. The carbon dioxide produced allows for the reduction of iron oxides into more pure iron compounds.
Oxygen is used in other applications involving metal and requiring high temperatures, such as welding torches.
Aerospace Uses of Oxygen:
In liquid form, oxygen is used widely as an oxidizing agent for use in missiles and rockets, where it reacts with liquid hydrogen to produce the terrific thrust needed for take-off. Astronaut spacesuits include a nearly pure form of oxygen.
Oxygen is used to degrade hydrocarbon compounds, which are broken apart by heating them. This is used to create combustion that usually liberates water and carbon dioxide, but can also produce the hydrocarbons acetylene, propylene and ethylene.
Oxygen is used in sewage-treatment and water-purification plants. It is forced through water to increase the production of bacteria that metabolize waste products in the water.
Oxygen gas (O2) is needed to produce energy in things not linked to an electrical supply of their own, such as generators and vehicles (e.g., ships, airplanes and cars).
Worldwide, renewable energy is the fastest growing source of energy yet it only
provides 10% of our total energy. Explain two positives and two negatives associated
with renewable resources.
Answer with Explanation:
Positive
1. They don't create too much pollution, which makes them "clean."
It allows us to have a clean air because there's no need of burning them just like the fossil fuels (non-renewable).2. They don't cost too much to run.
The supply of these resources doesn't cost anything at all. For example, solar energy relies on the heat of the sun. The sun's heat is definitely free and can be found in most sunny places.Negative
1. Setting up is expensive.
An example of this is the "wind turbine" that costs millions of dollars in order to set up.2. The output is affected by many factors.
Depending on the kind of renewable resource, most of these are affected by many factors. For example, wind turbines rely on wind's blowing while the hydroelectric powers can be affected by drought.Assume a seed eating finch population is currently at carrying capacity and the availability of food decreases dramatically. What will happen to the carrying capacity
Answer:
This question lacks options, options are:
A.Carrying capacity will increase B.Carrying capacity will decrease C.Carrying capacity will remain unchanged. The correct answer is B.
Explanation:
Ecologists define 'carrying capacity' as the population of a certain species that a defined habitat can support indefinitely, without permanently damaging the ecosystem on which they are dependent,that is, the ecological carrying capacity of an ecosystem is the maximum growth limit of a biological population that the environment can support in a given period, without negative effects on that population or on the environment.
Assuming that the motion of the object remains the same, at what position will the object be when it had traveled for a total of 6 s?
A. 2 m
B. 0 m
C. 1 m
Answer:
B. 0 m
Explanation:
The graph given is a position - time graphical model of the motion of a body.
The y-axis denotes the position of the body and the x- axis is the time taken.
To solve this problem, since the velocity of the motion is constant and no acceleration, we trace up the point 6s on the x-axis and find the y-axis equivalent.
Completing the graph, the point lies on 0m. At 0m, the object would have traveled for 6s.Answer:B. 0 m
Explanation:The graph given is a position - time graphical model of the motion of a body.
The y-axis denotes the position of the body and the x- axis is the time taken.
To solve this problem, since the velocity of the motion is constant and no acceleration, we trace up the point 6s on the x-axis and find the y-axis equivalent.
Completing the graph, the point lies on 0m.
At 0m, the object would have traveled for 6s.
how does phosphorus enter the phosphorus cycle?
Answer:
Phosphorus moves in a cycle through rocks, water, soil and sediments and organisms. Over time, rain and weathering cause rocks to release phosphate ions and other minerals. This inorganic phosphate is then distributed in soils and water. Plants take up inorganic phosphate from the soil.
Explanation:
Question 9 of 25
Which is an example of current electricity?
A. Positively charged particles are attracted to negatively charged
particles.
OB. Negative and positive electric charges build up in different regions
of a cloud.
OC. Electrons flow from an outlet into a toaster, causing it to heat a
slice of bread.
OD. A person rubs a shoe on a rug, causing extra electrons to be
transferred to the shoe.
Answer:
D. a person runs a shoe on a rug, causing extra electrons to be transferred to the shoe
Answer: C. electrons flow from an outlet into a toaster causing it to heat a slice of bread
Explanation:
A PEX
what are three of the human body's defensive barriers and how do they keep the human body healthy
In what way do two alleles for the some trait differ?
A. The are found on different chromosomes.
B. They consist of different sequences of DNA
C. They are produced by two different people.
D. They are complementary.
Answer:
B. They consist of different sequences of DNA
Explanation:
Alleles are contrasting or alternative forms of a gene. A diploid organism i.e an organism with two sets of homologous chromosome, contains two alleles for each gene that encodes a trait. Although the two alleles of that particular gene encodes the same trait, they can encode different phenotypes i.e way it is expressed because they contain different sequences of DNA.
For example, in a gene coding for height in pea plants, two alleles, T and t are responsible. Allele T codes for tall height (phenotype) while allele t codes for short height (phenotype). Although the two alleles are for the same trait, they differ in the content of their DNA sequence, hence, are expressed differently or variably.
What do mutated proto-oncogenes cause?
Answer: Bad gene
Explanation:
They can cause and become a ''bad'' gene, a gene that is not good.
That gen is not good because it can become permanently activated or turned on in the times where it is not supposed to happen and because of that cell can grow out of control. When a cell is growing out of control it can be really bad because it can cause cancer.
Which statement best describes how some trees respond to decreasing
temperatures and shorter days in the fall?
Answer: they drop their leaves and go into dormancy
Explanation:
Answer:
they drop their leaves and go into dormancy[
Explanation:
With a light-sensitive chemical, plants can sense the differences in day length. For example, in the fall, when the days start to get shorter, the trees sense that there is less sunlight. The plant is stimulated, and it sends messages telling the leaves to change colors and fall.
Who said all animals were made of cells
Answer:
Theodor Schwann said all animals were made of cells.Explanation:
I hope l helped ❤❤❤It was proposed by Theodor Schwann that animals were made of cells.
Although Robert Hooke (who coined the term “cell”) first noticed them in 1695, it wasn’t until 1839 that Theodor Schwann (author of “The Theory of Cells”) and Mattias Schleiden first proposed the idea that all living things are made up of cells.
An animal cell is an eukaryotic cell with a plasma membrane surrounding it. The cell has a membrane-binding nucleus and a liquid cytoplasm and does not have a cell wall like a plant cell. Animal cells are part of the kingdom Animalia.
Theodor Schwann coined the term cell theory and claimed that all living things are made up of cells and that cells were the smallest and most fundamental component of all living things.
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