Answer:
A) Phloem
Explanation:
How does a bacterium compare to a frog at the cellular level?
Answer:
Bacterium is prokaryotic while frog is eukaryotic, also Bacterium is unicellular while frog is multicellular
Explanation:
Bacteria can be considered unicellular prokaryotic organisms, whereas a frog is a multicellular eukaryotic organism.
What are prokaryotic cells?Prokaryotic cells are specific cells that do not have a cell nucleus and also lack membrane-bound organelles.
Conversely, eukaryotic cells contain organelles and the genetic material is compartmentalized in the nucleus.In conclusion, bacteria are unicellular prokaryotic organisms, whereas a frog is a multicellular eukaryotic organism.
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which part of Earth is not influenced by energy from the sun?
Answer: Mantle
Explanation:
21. All the following are differences between arteries and veins
except
arteries are thick and veins are thin
O arteries do not have valves and veins have valves
arteries connect to capillaries and veins do not connect to capillaries
arteries carry blood away from the heart and veins carry blood back to the heart
22. All the following are the 3 major parts of the cardiovascular system
VA
Answer:
Arteries connect to capillaries and veins don't connect to capillaries
Explanation:
Actually both are connected by capillaries
HELP GUYSSSSS PLS
Explain the role of insulin in the homeostatic regulation of blood glucose levels
Answer:
Insulin helps the cells absorb glucose, reducing blood sugar and providing the cells with glucose for energy. When blood sugar levels are too low, the pancreas releases glucagon. Glucagon instructs the liver to release stored glucose, which causes blood sugar to rise.
How does DNA analysis help scientists better understand evolution? (1 point)
O It spells out the amino acids that make up an organism.
o It shows us what codons an organism has.
o It helps chart changes in amino acid sequences over time.
O It shows us an organism's genome sequence.
Answer: i would say number one
Explanation: DNA and the genetic code reflect the shared ancestry of life. DNA comparisons can show how related species are. Biogeography. The global distribution of organisms and the unique features of island species reflect evolution and geological change
hope this help
Answer:
It helps chart changes in amino acid sequences over time.
Explanation:
I took the qc
4. In a prairie ecosystem, nitrogen and other matter builds up in animal
wastes. Which organisms return this matter to the ecosystem by
breaking down wastes?
Answer:
Fungi, insects, and earthworms
Explanation:
They decompose wastes, returning nitrogen back to the ecosystem.
PLEASE ANSWER ASAP
What do you notice about the anti parallel strands?
Answer:
Antiparallel: A term applied to two molecules that are side by side but run in opposite directions. The two strands of DNA are antiparallel. The head of one strand is always laid against the tail of the other strand of DNA
Question 17
Identify the organelle by its function
Creates ATP (energy) and known as the powerhouse of the cell.
name two components of blood that are not present in glomerular filtrate
Answer:
Filterable blood components include water, nitrogenous waste, and nutrients that will be transferred into the glomerulus to form the glomerular filtrate. Non-filterable blood components include blood cells, albumins, and platelets, that will leave the glomerulus through the efferent arteriole.
:_:
Blood cells and plasma proteins are the two components that are not present in glomerular filtrate.
What is blood cells?"A blood cell is a cell produced through hematopoiesis and found mainly in the blood."It includes RBCs, WBCs and platelets.What are plasma proteins?"Plasma proteins are proteins present in blood plasma."It plays an important role in immune system.What is glomerular filtrate?The filtrate formed after filtration of blood in the glomerulus is called glomerular filtrate. It consists majorly of water and other constituents such as amino acids, glucose, potassium, sodium, urea, uric acid and ketone bodies.The filtrate does not contain RBCs, WBCs, platelets and plasma proteins.
Hence, the blood cells and plasma proteins are not present in glomerular filtrate.
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stars a and b have the same luminosity, but star b is much farther away from earth. how does star a's apparent brightness compare with that of star b?
A. stars a and b have the same apparent brightness
B. star a has a greater apparent brightness than star b
C. star a has an apparent brightness that changes more than star b's
D. star a has a lesser apparent than star b
Answer: the answer is b.) star a has a greater apparent brightness than star b!!
Explanation: ap3x !!
The brightness can be compared as star a has a greater apparent brightness than star b (Option B).
What is star brightness?Star brightness refers to the amount of light released by a star and we can observe it for the Earth.
Star brightness largely depends on the distance that separates us from the star.Star brightness is a fundamental property to estimate the age of a particular star.
In conclusion, the brightness can be compared as star a has a greater apparent brightness than star b (Option B).
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Humans
have many interactions with the environment. Briefly describe how human activities can affect the environment of organisms
living 50 years from now. In your answer, be sure to:
A. Identify one human activity that could release chemicals harmful to the environment.
B. Identify the chemical released by the activity.
C. State one effect the release of this chemical would most likely have on future ecosystems.
D. State one way in which humans can reduce the production of this chemical to lessen its effect on future
ecosystems.
Answer:
Explanation:
human contanials alot
A. Burning fossil fuels, releasing chemicals into the atmosphere, reducing the amount of forest cover, and the rapid expansion of farming, development, and industrial activities are releasing carbon dioxide into the atmosphere and changing the balance of the climate system.
What are fossil fuels?Fossil fuel is defined as non-renewable energy sources such as coal, coal products, natural gas, derived gas, crude oil, petroleum products and non-renewable wastes.
B. When fossil fuels are burned, they release nitrogen oxides into the atmosphere.
C. Burning of fossil fuel contribute to the formation of smog and acid rain. The most common nitrogen-related compounds emitted into the air by human activities are collectively known to as nitrogen oxides.
D. One way in which humans can reduce the production of this chemical to lessen its effect on future ecosystems is to use alternative fuels such as solar, wind or water.
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which pair of terms describes studies that give specific information about movement, behavior, and composition of ancient species?
a. trace fossils and original material
b. camouflage and mimicry
c. mold and cast
d. embryology and comparative anatomy
Answer: A because before used to be fossils.
Not shure just double check but from my side its A
Explanation:
cell division occurs once mitosis ,meiosis, or both
Answer:
Mitosis
Explanation:
Answer:
Mitosis.
Explanation:
Proteins work as buffers to prevent acidosis
O
O False
Answer: ima say its true
Explanation: Several substances serve as buffers in the body, including cell and plasma proteins, hemoglobin, phosphates, bicarbonate ions, and carbonic acid. ... The respiratory and renal systems also play major roles in acid-base homeostasis by removing CO2 and hydrogen ions, respectively, from the body.
Large molecules that are built from repeating smaller molecules called
(Insert first answer) are called (insert second answer)
Answer:
The first answer would be a polymer and the second answer would be a monomer.
Sustainable agriculture is farming that conserves natural resources and helps keep the farmed land productive indefinitely . This kind of agriculture minimizes the amount of energy , water , pesticides , and fertilizer needed to grow crops . Sustainable agriculture involves planting productive , pest resistant crops that require fewer resources and less maintenance . How do the resources needed for sustainable agriculture compare with the resources needed for large scale agriculture ? I’m
Answer:A
Explanation: more resources are usually need it for the initial set up and planning of traditional large scale agriculture techniques.
Drag the tiles to the correct boxes to complete the pairs.
Match the characteristics with the phylum.
water vascular system
tentacles with stinging cells
molting for growth
the presence of mantle
Arthropoda
Cnidaria
Molluska
Echinodermata
Answer:
Water vascular system = Echinodermata
Tentacles with stinging cells= Cnidaria
Molting for growth= Arthropoda
Presence of mantle= Molluska
Explanation:
Which of the following is a density-dependent factor?
a. food availability
b. volcanic eruptions
c. cold weather
Answer:
a) food availability
Density-dependent factors have varying impacts according to population size. Different species populations in the same ecosystem will be affected differently. Factors include food availability, predator density and disease risk. Density-independent factors are not influenced by a species population size.
1)How do mutations impact
the process of translation?
2)How did a mutation affect a human population of West Africa?
Answer:
hey are you kpop fan??
you know bts???
The Earth's magnetosphere is created by: A. a fusion in Earth's core
B. spinning in the Earth's core
C. gravity in the Earth's core
D. too much heat in the Earth's core
Answer:

solar wind
The magnetosphere is the region of space surrounding Earth where the dominant magnetic field is the magnetic field of Earth, rather than the magnetic field of interplanetary space. The magnetosphere is formed by the interaction of the solar wind with Earth's magnetic field.
Submit your project researching some environmental problems caused by the agriculture and natural resource industry. Be sure your
essay includes the following:
• the name of the article, author, and publisher or site owner;
• a description of the problem;
• a discussion of how it relates to agriculture or natural resources;
• a discussion of potential solutions to the problem; and
• a discussion of your own ideas on the causes of and solutions for the problem.
Ok
Answer:
this is what i put, i tried my best and im sorry its not the greatest but maybe it can help some of you out and give you some ideas.
Agriculture is the leading source of pollution in many countries. Pesticides, fertilizers, and other toxic farm chemicals can poison fresh water, marine ecosystems, air, and soil. They also can remain in the environment for generations.
What are the major environmental problems caused by agriculture?Agriculture contributes to a number larger of environmental problems that cause environmental degradation including climate change, deforestation, biodiversity loss, dead zones, genetic engineering, irrigation problems, pollutants, soil degradation, and waste.
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.
Fossil fuels began to be used, which led to increased pollution, and the construction of factories led to the loss of habitat for many wild animals. The development of agriculture has led to the emergence of new plant varieties, domestication of animals, and disturbance of soil composition.
Therefore, some of the environmental problems caused by the agriculture and natural resource industry are well described above.
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This man took the evolution work of Darwin and applied it to human cultures, arguing that just like species, some cultures are better adapted to the world than others (that is, they are more successful at extracting resources and providing for their offspring), and for this reason, those more successful cultures are superior.
a) Herbert Spencer
b) Franz Boas
c) E. B. Tylor
d) Lewis Henry Morgan
Answer:
A
Explanation:
A
Franz Boas took the evolution work of Darwin and applied it to human cultures (Option b).
Franz U. Boas was an anthropologist and who has been considered as the "Father of American Anthropology".F. Boas is known due to the theory of cultural relativism, which states cultures are essentially similar.Boas work's is in consonance with Darwin's ideas of natural selection and evolution.In conclusion, Franz Boas took the evolution work of Darwin and applied it to human cultures (Option b).
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need the answer asap!!
Answer:
Cell division, as this includes meiosis and mitosis, which are types of asexual reprodcution
Explanation:
What is the approximate straight-line distance from Mt. Marcy to Slide Mt.?
Answer:
93.2 miles
Explanation:
Explain the reason the Type AB and Type O blood phenotypes always have the same
genotype, whereas the Type A and Type B blood phenotypes have two possible allelic
combinations.
Answer:
Because A is co-dominant to B and O is recessive, so the genotype is the same as the phenotype. But A can have 2 genotypes because A can mask a recessive allele, which makes the phenotype A. B can also mask a recessive allele, which makes the phenotype B.
Examples
AO (genotype) = A (phenotype)
BO (genotype) = B (phenotype)
describe the three general methods used by ecologists to study organisms
Answer: The three main research methods used are observation, modeling, and experimentation.
Explanation:
Observation:
Every experiment requires observation. Ecologists must observe the environment, the species within it, and how those species interact, grow and change. Different research projects different types of assessments and observations.
Ecologists sometimes use a desk-based assessment, or DBA, to collect and summarize information about specific areas of interest. In this scenario, ecologists are using information already collected from other sources.
Oftentimes, however, ecologists rely on observation and fieldwork. This entails going into the habitat of the subject of interest to observe it in its natural state. By doing field surveys, ecologists can track the population growth of species, observe community ecology in action and study the impact of any new species or other introduced phenomena in the environment.
Each field site will differ in nature, shape, or other ways. Ecological methods allow for such differences so that different tools can be used for observations and sampling. It is crucial that sampling be done randomly to combat bias.
Modeling:
Ecological methods rely heavily on statistical and mathematical models. These provide ecologists with a way to predict how an ecosystem will change over time and react to changing conditions in a system.
Modeling also provides another way to decipher ecological information when fieldwork is not practical. There are several drawbacks to relying solely on fieldwork. Because of the typically large scale of fieldwork, it is not possible to replicate experiments exactly. Sometimes even the lifespan of organisms is a rate-limiting factor for fieldwork. Other challenges include time, labor, and space.
Modeling provides a method in which to streamline information more efficiently.
Examples of modeling include equations, simulations, graphs, and statistical analyses. Ecologists use modeling for producing helpful maps as well. Modeling allows for calculations of data to fill in gaps from sampling. Without modeling, ecologists would be hampered by the sheer amount of data that needs to be analyzed and communicated. Computer modeling allows for comparatively rapid analysis of data.
A simulation model, for example, enables the description of systems that would otherwise be extremely difficult and too complex for traditional calculus. Modeling allows scientists to study coexistence, population dynamics, and many other aspects of ecology. Modeling can help predict patterns for crucial planning purposes, such as for climate change.
Humanity’s impact on the environment will continue. It, therefore, becomes ever more crucial for ecologists to use ecological research methods to find ways to mitigate the effects on the environment.
Experimentation:
The overarching purpose of ecological methods for research is to get high-quality data. Experiments must be carefully planned.
Hypothesis: The first step in any experimental design is to come up with a hypothesis or scientific question. Then, researchers can come up with a detailed plan.
Factors that affect fieldwork experiments include the size and shape of an area that needs to be sampled. Field site sizes range from small to very large, depending on what ecological communities are being studied. Experiments in animal ecology must take into account the potential movement and size of animals.
For example, spiders would not require a large field site for study. The same would be true when studying soil chemistry or soil invertebrates. You could use a size of 15 meters by 15 meters.
Herbaceous plants and small mammals might require field sites of up to 30 square meters. Trees and birds might need a couple of hectares. If you are studying large, mobile animals, such as deer or bears, this could mean needing a quite large area of several hectares.
Deciding upon the number of sites is also crucial. Some field studies might require only one site. But if two or more habitats are included in the study, two or more field sites are necessary.
Tools: Tools used for field sites include transects, sampling plots, plotless sampling, the point method, the transect-intercept method, and the point-quarter method. The goal is to get unbiased samples of a high-enough quantity that statistical analyses will be sounder. Recording information on field data sheets aids in the data collection.
A well-designed ecological experiment will have a clear statement of purpose or question. Researchers should take extraordinary care to remove bias by providing both replication and randomization. Knowledge of the species being studied as well as the organisms within them is paramount.
Results: Upon completion, collected ecological data should be analyzed with a computer. There are three types of ecological experiments that can be made: manipulative, natural, and observational.
Hope This Helps!
The 3 general methods used by ecologists to study organisms include:
ObservationModellingExperimentationObservation involves observing organisms in their natural habitats or environments and then recording the findings. It is usually done by field surveying.
The different species living in an environment, how they interact with each other and other abiotic components of the environment are some of the observations taking during field surveys. The growth of individual species, the effects of introducing new species, their adaptations and other areas of community or ecosystem ecology can be studied through observation.
Modelling requires a simulation of real-life ecological processes through different manipulations. This could be done in the laboratory, on the field, or even on the computer. Computer modelling requires that data from observation or experimentation are supplied as input and the inputs are subject to mathematical maneuvering.
With models, complex ecological processes can be simulated and analyzed and extrapolated to deduce how things might happen in real life ecological interactions.
Experimentation involves setting up experiments following the scientific method. It can be a observational or controlled experiments.
Observational experiments requires studying organisms, populations, communities, or ecosystems through pure observation without changing or manipulating any variable.
Controlled experiments requires that variables are introduced and manipulated in some groups while some groups serve as the baseline without any manipulated variables.
Data are obtained from experiments and these are analyzed in relevant ways to support or reject hypotheses.
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Most prokaryotes have a single ______ molecule found in the cells cytoplasm. This large DNA molecule is typically referred to as the cells _________.
Answer:
most prokaryotes have a single double stranded circular DNA
the cell's nucleoid
What kind of neurons are sending messages from the brains to legs ordering them to dance ?
Answer:
motor neurons
Explanation:
( i believe ,, correct me if i am wrong )
the sensory neurons collect stimuli from your surroundings or they send messages to the relay neurons ,, and therefore causes the motor neurons to act on the command to move a certain body part .
When Joe saw the Rocky Mountains for the first time, he exclaimed, "These Mountains are much younger than ours back East!" Which feature supports his conclusion that the Rockies were relatively young mountains? * a)they have rounded tops b)weathering has not yet hardened the rock c)they have sharp peaks
The statement "they have sharp peaks" is a feature supports his conclusion that the Rockies were relatively young mountains.
What is a mountain?A mountain is an elevated area of the crust of the Earth, typically with steep sides that reveal a substantial amount of bedrock that has been exposed. Although definitions vary, a mountain is often taller than a hill, rising normally at least 300 meters above the surrounding terrain, and differs from a plateau in having a constrained peak area.
it is a landform that rises significantly above the surrounding terrain. Mountains, which are steeper than hills, are created when the Earth's crust's tectonic plates collide and push the land upward where they do. As an alternative, molten rock that has broken through the Earth's surface can also rise up and form mountains.
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which of tge following is true about Earth's temperatures?
Answer:
Water vapor and clouds are the major contributors to Earth's greenhouse effect
Explanation: