Answer:
Fossils are the preserved remains or traces of animals, plants, and other organisms from the past. Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today.Explanation:
What causes the different layers in our atmosphere?
A form of mitotic cell division that serves as a means of reproduction in amebas and various
other protists is
Answer:
The Cell Cycle | Back to Top
Despite differences between prokaryotes and eukaryotes, there are several common features in their cell division processes. Replication of the DNA must occur. Segregation of the "original" and its "replica" follow. Cytokinesis ends the cell division process. Whether the cell was eukaryotic or prokaryotic, these basic events must occur.
Cytokinesis is the process where one cell splits off from its sister cell. It usually occurs after cell division. The Cell Cycle is the sequence of growth, DNA replication, growth and cell division that all cells go through. Beginning after cytokinesis, the daughter cells are quite small and low on ATP. They acquire ATP and increase in size during the G1 phase of Interphase. Most cells are observed in Interphase, the longest part of the cell cycle. After acquiring sufficient size and ATP, the cells then undergo DNA Synthesis (replication of the original DNA molecules, making identical copies, one "new molecule" eventually destined for each new cell) which occurs during the S phase. Since the formation of new DNA is an energy draining process, the cell undergoes a second growth and energy acquisition stage, the G2 phase. The energy acquired during G2 is used in cell division (in this case mitosis).
Explanation:
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What would happen if you cut all of the nerves to and from the heart, but otherwise kept the heart properly nourished
Answer:
The heart would no longer function because all communication to the brain is no longer there and your heart could either stop beating, or be off rhythm.
Explanation:
MERCURY HAS A MEAN TEMPERATURE OF 167 DEGREES CELSIUS YET ICE HAS BEEN DETECTED IN DEEP CRATERS. EXPLAIN HOW THIS PRESENCE OF ICE IS POSSIBLE
Answer:
In 0 K =-273.15 C therefore 239 k= -34.15 C
Explanation:
i just happened to find the answer
Mercury is a metal which is liquid at room temperature. It has shown to have unique properties like the presence of ice. This is because the planet does not get sufficient heat transport.
How ice is present on Mercury?Mercury does not have a substantial atmosphere to transport heat around the planet. The darkness of the planet allows ice to remain frozen despite the extreme temperature of the world.
The Earth-based radar imaging of Mercury has revealed areas of high radar reflectivity near the poles that could indicate the presence of ice in these regions. There are dozens of areas with generally circular shapes.
Mercury is the only metal that is a liquid at standard temperature and pressure, all the other metals are solid. The other metals like rubidium, cesium, and gallium melt at a temperature just above room temperature but mercury stay as a liquid at all the temperatures.
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How does the disease in the krill population impact the penguins population
Answer:
A disease in krill can impact the penguin population because it could infect many penguin and kill them, lowering the population.
Which of the following is created by meiosis?
A. Liver cells
B. Sperm cells
C. Unicellular organisms
D. All of the above
The correct answer would be B, correct me if I'm wrong.
HELP PLS
The movement of Earth's tectonic plates relate to many factors, including density differences in the plates and
A.
convection cells in Earth's atmosphere.
B.
convection currents in Earth's mantle.
C.
how closely humans monitor plate movements.
D.
the number of species living on each plate.
Answer:
Convection currents in the Earth's mantle.
amylase is a biocatalyst that hydrolyzes starch into simple sugar molecules in the pancreas. Which best describes amylase ?
Answer: The options are not given, here are the options.
A. lipid
B. protein
C. fatty acid
D. carbohydrate
The correct option is B.
Protein.
Explanation:
Protein best describes Amylase because it is an enzyme and Enzymes are biological molecules called protein that speed up the rate of chemical reactions. Therefore amylase is a biocatalysts or protein that breakdown starch into simple sugars molecules in the pancreas like glucose which can easily be absorb by the blood. All enzymes are protein and amylase is an enzyme in the digestive system.
structures under flexor retinaculum
Answer:
radial brusa and ulnar brusa
Explanation:
median nerve
What three categories of energy expenditure make up the total energy expenditure? Define each briefly. For the average person, how much does each contribute to the overall required?
The categories of energy expenditure include the following:
Resting metabolic rate - This is the total number of calories burned when your body is completely at rest and accounts for 60-75 percentThermic effect of feeding - This happens during feeding in which the metabolic rate increases and heat is produced and accounts for 5-15 percentThe thermic effect of activity - the amount of energy burned during all physical activity and accounts for 15-30 percent.What is Energy expenditure?These are the processes which involves how energy is used or spent. The categories are mentioned above with their appropriate explanations.
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Part D
The organism you chose was previously classified by a scientist. What five questions could the scientist ask
that would help classify your organism?
The scientist could ask:
Is it a Mammal?
Is it similar to any other organism?
What type of habitat does it live in?
What are some of it's behavior attributes?
Is it cold blooded or warm blooded?
The scientist could ask five questions in order to classify the organism are
1. what is the meaning of classification
2. what is the need of classification?
3. why we classify organisms?
4. what are the standard criteria for classification?
5. how do we classify organism?
What is organism classification?
A classification system of organism are used by scientists to divide the all the known organisms into groups based observable features.
This system is otherwise known as taxonomy which is subdivided into subgroups like Kingdom, Phylum, Class, Order, Family, Genus, and Species.
Kingdom is based food intake mechanism, Phylum is based on external symmetric appearance.
Class with significant symmetry, order with an unique characteristics, family belongs to the groups which share more similar characteristics.
Genus is generic name of an organism, species is most strict level of classification.
For example Home sapiens, where Homo is genus and sapiens is species.
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Match the following groups to their descriptions:
- Amoebozaons
- Stramenopiles
- Alveolates
- Rhizarians
- Excavata
A. have a cell wall and both an outer and an inner membrane. There are no membraneous organelles in this group.
B. have a feeding groove on one side and are usually single-celled. Members include organisms with heterotrophic, photosynthetic, parasitic, or symbiotic lifestyles.
C. use pseudopodia to move and may be either single-celled or multicellular. Members within this group exhibit free-living and parasitic lifestyles.
D. have a tinsel flagellum and are photosynthetic.
E. have elaborate tests composed of calcium carbonate, silicon, or strontium salts. Members have thin pseudopodia that project from the test.
F. have membrane-enclosed sacs beneath the plasma membrane. There are photosynthetic and heterotrophic members in this group.
Answer:
1. Archaeplastida.
2. Excavata.
3. Amoebozaons.
4. Stramenopiles.
5. Rhizarians.
6. Alveolates.
Explanation:
Protists can be defined as any group of eukaryotic organisms that belongs to the kingdom protista and are not plant, animal or fungus.
These are the six (6) groups of protists;
A. Archaeplastida: have a cell wall and both an outer and an inner membrane. There are no membraneous organelles in this group.
B. Excavata: have a feeding groove on one side and are usually single-celled. Members include organisms with heterotrophic, photosynthetic, parasitic, or symbiotic lifestyles.
C. Amoebozaons: use pseudopodia to move and may be either single-celled or multicellular. Members within this group exhibit free-living and parasitic lifestyles.
D. Stramenopiles: have a tinsel flagellum and are photosynthetic.
E. Rhizarians: have elaborate tests composed of calcium carbonate, silicon, or strontium salts. Members have thin pseudopodia that project from the test.
F. Alveolates: have membrane-enclosed sacs beneath the plasma membrane. There are photosynthetic and heterotrophic members in this group.
How have increased carbon dioxide levels and temperatures affected living organisms?
Answer:flowers and other living plants need carbon dioxide but humans need oxygen so human population might decrease of sum like dat
Explanation:
Explain the difference between Mass, Volume, and Density.
Answer:
mass is the amount of quantity possessed by a body
volume is the amount of space occupied by a liquid enclosed in a container
density is the mass per unit volume
Explanation:
it is the quality of sound of an instrument
a.fine b.rondo c.timbre d.musical form
Answer:
I think a( doing this so I can bla bla bla. if police say they will not let you know what is the next step for me and my wife
below show plant and animal cells o
B
C
F
D
E
Plant Cell
Animal Cel
(a)
Which labelled part is selectively permeable on the
(0)
plant cell?
(ii)
animal cell?
____ refers to using the resources carefully and giving them time to renew.
a.
Disposal
b.
Conservation
c.
Recycle
d.
Reuse
Answer:
b. Conservation
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Which resource takes the longest amount to form?
Sunlight
Water
Wood
Coal
Answer: Coal
Explanation:
suggest two possible reason why there were no predator on the island?
Although most of the mechanisms of evolution are nonrandom, the one that is absolutely random is ________.
Answer:
The correct answer is D.) genetic drift
Explanation:
Genetic drift refers to a population's unpredictable oscillations in the number of gene variants. When the occurrence of various forms of a gene, known as alleles, increases and decreases by chance over time, this is known as genetic drift. The changes in allele frequencies are used to measure these differences in allele presence. I hope this helps! ^-^
Bacteria that are resistant to more than one antibiotic are called superbugs. Compare the control and antibiotic data from the three farms and select all the true statements.
A: Another superbug was created by using the same method of giving antibiotics to chickens as Monita Farms.
B: Our experiment was a failure.
C: The data for the control farm shows that not administering antibiotics helps to prevent superbug creation.
D: Natural selection is not a possible cause of the superbug creation on Monita Farms.
E: There was no reason to test the control solution.
Answer:
A and C according to another https://brainly.com/question/22872829
Explanation:
Why do scientists believe Neanderthals had some interbreeding with AMHs?
Explanation:
However, in 2016 researchers published a new set of Neanderthal DNA sequences from Altai Cave in Siberia, as well as from Spain and Croatia, that show evidence of human-Neanderthal interbreeding as far back as 100,000 years ago farther back than many previous estimates of humans' migration out of Africa (Kuhlwilm Dec 11, 2020
Name Four agro-processing methods
Answer:
Canning. The food is heated to a high temperature. ...
Fermentation. The breakdown of sugars by bacteria, yeasts or other microorganisms under anaerobic conditions. ...
Freezing. ...
Modified atmosphere packaging.
Explanation:
Milling, fermentation, drying, and canning are four agro-processing methods.
Milling: It involves the grinding, crushing, or pulverizing of agricultural raw materials such as grains, cereals, or oilseeds to produce flour, meal, or other powdered products.
Fermentation: In agro-processing, It is utilized to produce food and beverage products such as bread, cheese, yogurt, beer, wine, and pickled vegetables.
Drying: It is a method used to remove moisture from agricultural commodities to enhance their shelf life, prevent spoilage, and enable further processing or storage.
Canning: It helps extend the shelf life of perishable food items, including fruits, vegetables, meats, and seafood, by creating a sterile and oxygen-free environment.
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Which compound is a product of photosynthesis and a reactant for cellular respiration
Answer:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.
Explanation:
Glucose is a product of photosynthesis and a reactant for cellular respiration.
PHOTOSYNTHESIS:
Photosynthesis is a process in which green plants obtain their food in the presence of sunlight. The chemical equation is as follows:6CO2 + 6H2O → C6H12O6 + 6O2
CELLULAR RESPIRATION:
Cellular respiration is the process by which living organisms obtain energy by breaking down food molecules in their cells:C6H12O6 + 6O2 → 6CO2 + 6H2O
From the above two equations, glucose compound is a reactant for cellular respiration but a product of photosynthesis.Learn more at: https://brainly.com/question/13721588?referrer=searchResults
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Answer:
Worms live in the soil. But after a rain, soil pores and worm burrows fill with water. The worms can't get enough oxygen when the soil is flooded, so they come to the surface to breathe.
HELP NEEDED PLEASE!!
Which properties of nerve cells are most important for their ability to carry out their task in helping animals deal with sensory input?
A. Nerve cells are sometimes packed closely together and sometimes widely spaced
B. Nerve cells can carry signals and connect all parts of the body to the brain
C. Nerve cells can be damaged by a serious injury or by disease
D. Nerve cells grow and reproduce like other cells of the body
Please just tell me which one it is! Thanks! Have a great day!
Answer:
B
Explanation:
Nerve cells can carry signals and connect all parts of the body to the brain
Explain how a hypothesis may become a theory
10 POINTS PLLZZZ HELP!!URGENT
Answer:
c
Explanation:
During which phase of the cell cycle does the cytoplasm of a cell divide to form two daughter cells?.
Answer:
Cytokinesis
Explanation:
Cytokinesis is the last part of the Miotic phase. This is when the cytoplasm splits apart. A way to remember this is that cytoplasm and cytokinesis both start with "Cyto".
Explain how your neighborhood can be described as an ecosystem. Include examples of biotic and abiotic factors. Describe the levels of organization found in your neighborhood from the smallest level of organization to the largest. Provide an example for each.
Answer:
Ecologists often work at five broad levels, sometimes discretely and sometimes with overlap: organism, population, community, ecosystem, and biosphere.
Organisms make up a population. Multiple populations of different species make up a community. Communities in a particular area make up an ecosystem. All of the ecosystems on Earth make up the biosphere.
From smallest to largest:
Organism: Organismal ecologists study adaptations, beneficial features arising by natural selection, that allow organisms to live in specific habitats. These adaptations can be morphological, physiological, or behavioral.
Population: A population is a group of organisms of the same species that live in the same area at the same time. Population ecologists study the size, density, and structure of populations and how they change over time.
Community: A biological community consists of all the populations of different species that live in a given area. Community ecologists focus on interactions between populations and how these interactions shape the community.
Ecosystem: An ecosystem consists of all the biotic and abiotic factors that influence that community. Ecosystem ecologists often focus on flow of energy and recycling of nutrients.
Biosphere: The biosphere is planet Earth, viewed as an ecological system. Ecologists working at the biosphere level may study global patterns—for example, climate or species distribution—interactions among ecosystems, and phenomena that affect the entire globe, such as climate change.
An ecosystem consists of all the living organisms and the physical environment which interact with each other. This includes nutrient cycling and energy flow.
What is Ecosystem?An ecosystem consists of all the living organisms and the physical environment with which they interact in the surrounding environment. The biotic and abiotic components in an ecosystem are linked together through nutrient cycle and energy flow. Energy enters into the system through photosynthesis and is incorporated into the plant tissue.
Biotic factor is the living matter which is present in an ecosystem such as the producers which include plants, consumers such as herbivores, carnivores and other living organisms. Abiotic factors include all those matter in the ecosystem which is non-living, such as air, water, soil, temperature, etc.
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