Watching CrashCourse video, I learned the 3 basic elements of taxonomy, which are the three domains are Archea (formed by prokaryotic beings, such as archaea), Bacteria (formed by prokaryotic beings, such as bacteria and cyanobacteria) and Eukarya (formed by eukaryotic beings).
What is the concept of taxonomy?Taxonomy is the branch of biology responsible for identifying and classifying all animals and plants that inhabit the Earth, based on the different characteristics they share with each other.
What is taxonomy and examples?Taxonomy is the area of Biology that classifies, organizes and describes living beings. It is like a library that organizes each group into its categories, in an order that facilitates understanding and searching for features.
With this information, we can conclude that Taxonomy is a method used in biology to name, identify and classify living beings.
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Genotype: BBee
Phenotype:
DONE
V fur and
V eyes
[tex]black \: dominant = BB \\ phenotype = black \: fur \\ \\ red \: eyes \: recessive = ee \\ (not \: masked \: b y \: the \: dom \: trait) \\ phenotype = red \: eyes[/tex]
Answer:
Explanation:
Genotype: BBee
Phenotype:
✔ black
fur and eyes
red
What could a scientist do to determine what era the Eocene period belongs to on the geologic time scale?
learn what happened during Precambrian time
study information related to the Cenozoic era
view the timing of events in the Mesozoic era
research events that happened during the Paleozoic era
The Eocene occurred during the Terciaty period. To determine the era the Eocene period belongs to, a scientist should study information related to the Cenozoic era. Option B).
What is the Cenozoic?The Cenozoic is an era that covers the period from 65 million years ago to the present.
Significant events during the period,
During this era, there is a decrease in temperature (which until that moment was significantly higher than the current temperatures) and begins an aridity process.Since most cretaceous plant species got extinct, there is significant radiation of angiosperm and their consequent domain on the ground.
Following this diversification, different insects evolve following the different types of plants. Coevolution and pollination acquire protagonism.
During this period, mammals radiated too, originating in the current region of China.
Occurs the evolutive radiation of teleosts and birds.
The Cenozoic era includes the tertiary and quaternary periods.
⇒ Tertiary
Paleocene (65-55 my ago)Eocene (55-33 my ago)Oligocene (32-23 my ago)Miocene (23-5 my ago)Pliocene (5-2 my ago)
⇒ Quaternary
Pleistocene (2-0.02 my ago)Holocene (0.02 - 0 my ago)Since the Eocene occurred during the Terciaty period (Cenozoic era), to determine what era the Eocene period belongs to on the geologic time scale, a scientist should study information related to the Cenozoic era. Option B).
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What is the dependent variable that impacts the amount of solar energy in a location?
A. Latitude
B. Longitude
C. Prime meridian
D. Equator
Which parts of a plant are responsible for reproduction? Describe the role that each of them will play.
Describe what occurs during the process of seed development.
Based on your knowledge of flowers, why do you think most flowers are bright in color?
The parts of a plant that are responsible for reproduction are the flowers, they are present only in the most evolved group of plants called angiosperms. Flowers can be hermaphroditic or monoecious when they have both female (carpels) and male (stamens) structures.
Describe what happens during the seed development process.Germination is a succession of stages that resume the development of the embryo and the beginning of the formation of a new seedling. We can summarize germination as the process of transforming the seed into a new plant. The seed consists of the embryo, endosperm and integument.
Based on your knowledge of flowers, why do you think most flowers are brightly colored?Are mainly related to pollination by animals. This is due to the fact that the flower acts as a form of attraction for pollinators, therefore, mechanisms are needed to guarantee the visitation of these animals.
With this information, we can conclude that flowers inherit their appearance through genes. Pigments are born in these plants, producing a range of colors across the spectrum. The same chemical, carotenoid, that produces the pigment in tomatoes and carrots also produces the yellow, red, orange colors in certain flowers.
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Cystic fibrosis is a recessively inherited disorder that results from a mutation in the gene encoding CFTR chloride ion channels located on the surface of many epithelial cells. As shown in the figure, the mutation prevents the normal movement of chloride ions from the cytosol of the cell to the extracellular fluid. As a consequence of the mutation, the mucus layer that is normally present on the surface of the cells becomes exceptionally dehydrated and viscous.
An answer to which of the following questions would provide the most information about the association between the CFTR mutation and the viscous mucus?
O Is the mucus also secreted from the cells through the CFTR proteins?
O What is the change in nucleotide sequence that results in the CFTR mutation?
O How does the disrupted chloride movement affect the movement of sodium ions and
water by the cell?
O How does the mutation alter the structure of the CFTR proteins?
Answer:
the answer is b because it's right
What would happen if in a pcr reaction you used a dna polymerase isolated not from thermus aquaticus, but from an organism that grows at lower temperature?.
There would be very little or no DNA produced if in a pcr reaction you used a dna polymerase isolated not from thermus aquaticus, but from an organism that grows at lower temperature .
What is the purpose of PCR?
To amplify (copy) a gene so it can be detected.
How do the strands separate during PCR?
The hydrogen bonds between the two strands are broken by the DNA polymerase. During the annealing process, the primers split the strands. - The hydrogen bonds between the two strands are broken by the high heat of the denaturation stage.What is a PCR test ?
Targeting particular DNA fragments and amplifying (increasing in number) them artificially is done using the polymerase chain reaction technology. Describe how primers are used in PCR. The primer is a synthetic DNA strand that has bases that are complementary to the bases at the start of the DNA fragment that will be amplified.Learn more about PCR
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Which choice uses a nonrenewable energy resource to generate energy?
biomass power plant
fireplace that burns wood
nuclear power plant
wind farm
heeellllp meeeeeeeeeeeeee!!!!!
Answer:
Explanation:
its the fireplace ahhhhhhhhhhhhhhhhh
1. made of DNA holds genetic information
3. This type of ER transports and modifies lipids
4. type of respiration that does not use oxygen
6. Found only in plant cells, this surrounds the cell
8. the jelly like area in cell that hold organelles
13. type of transport that does not require energy
14. nerves that regulate responds to stimuli
Answer: im not sure
Explanation:
The use of propaganda as a way of exerting influence over others is what type of structural power?
Answer:
i think is the soft power
what is the source of mold on bread
Answer:
Well, mold develops and grows eventually forming a colony due to spores landing on the bread and multiplying, hence growing the mold.
Where does mold on bread come from?
On bread, molds (many colonies of various sorts) develop from microscopic fungi that float in the atmosphere.
The fungus that causes mold develops as extremely little filaments called hyphae, which enable the fungus to float and be transported by the air. The hyphae spread by forming an apparent, hairy network when they land on bread or other organic materials. The color of the spores that develop on the end of the hyphae determines the color of the mold network .There are molds that grow as single-cell spores as opposed to mold that grows as multicellular hyphae with a spore at the end. They are known as yeast.
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Eddie
3. The buccal cavity comprises ________,_______and __________.
4. Movement of food through oesophagus __________.
The movement of food through the esophagus is called peristalsis.
What is the buccal cavity?The mouth is what we generally call the buccal cavity. It is an opening that contains the teeth and the tongue. The tongue plays the important role of serving as the organ of taste while the teeth serves to marsh food. It is the white strong structure that occurs in the mouth that enables is to masticate our food. Also in the mouth we have the salivary gland which plays the role of secreting the saliva and we know that the saliva contains from enzymes that makes it possible for the digestion of food to commence at the moth. It the follows that the buccal cavity is made up of the teeth, tongue and salivary glands.
Food moves into the stomach via the esophagus. Thus movement is slow and is aided by the muscles that line the gastro intestinal tract. As such, movement of food through the esophagus is called peristalsis.
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List the pathway of an oxygen gas molecule from the surrounding air through the respiratory system to the blood. Just list the names of the respiratory structures involved,
The names of the respiratory structures involved include the following: nasal cavities (or oral cavity) > pharynx > trachea > primary bronchi (right & left) > secondary bronchi > tertiary bronchi > bronchioles > alveoli.
What is respiration?Respiration is defined as the oxygenation of blood through the intake of oxygen and the removal of carbon dioxide.
The pathway of oxygen gas molecule from the surrounding air through the respiratory system to the blood include respectively the following:
Nasal cavities (or oral cavity): This has a direct association with the outside oxygen from the environment.pharynx: This so also called the throat.trachea: This is also called the wind pipe.Primary bronchi (right & left): This divides from the trachea to form two bronchi.Secondary bronchi:Tertiary bronchi:bronchioles:alveoli.Learn more about respiration here:
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13. Which of the following drugs is not a hallucinogen?
A. Mescaline
B. PCP
C. Heroin
30 points!! Please helppp!! It’s the last question!! The following diagram shows the branching tree for four kingdoms and some of their shared derived characteristics.
What shared characteristic can be written at point X? Use complete sentences to explain your answer.
These are synapomorphies, or shared derived features. These are the traits that arose in particular groups of creatures' progenitors and were then passed on to those groups' offspring (or lineages).
What is synapomorphies?A unique character or character state that has evolved from its ancestor is known as an apomorphy.An apomorphy that is shared by two or more taxa is referred to as a synapomorphy and is thought to have originated in those taxa's most recent common ancestor. Synapomorphy suggests homology in cladistics.A characteristic or trait obtained through evolution from a similar ancestral form and shared by two or more taxonomic groups.Synapomorphies are traits that a group of taxa share because they descended from a single ancestor. Thus, synapomorphies provide as proof of historical connections and the corresponding hierarchical structure.An advanced character state that is shared by two or more taxa and that is obtained through evolution.It is inherited from the most recent common ancestor, whose own ancestor is presumed not to contain such qualities.Learn more about synapomorphies here:
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Which are done by a plant's roots? Select three options. Ohold the plant in the ground keep the plant standing tall soak up nutrients soak up sunlight soak up water
Answer:
The plants root soak up nutritions and soak up water.
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Most of the air we breathe is made of what molecule?
A. Carbon dioxide
B. Water vapor
C. Nitrogen
D. Oxygen
Answer:
C. Nitrogen
Explanation:
The composition of air is as follows:
nitrogen 78%
Oxygen 21%
carbon dioxide 0.03 %
water vapour 0.2 to 0.4 %
Proper functioning of our digestive system is due to the presence of
our diet.
-What are plate boundaries?
-What types of boundaries are there?
-What usually happens when each type of boundary moves?
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The tyres of tractor are wide and large .Give reason.
Maybe this is the answer
Proper functioning of our digestive system is due to the presence of
Proper functioning of our digestive system is due to the presence of Fiber/roughage in our diet.
Explanation:The consumption of roughage, or fiber, has long been recommended as a way to alleviate digestive issues, such as constipation. However, it also plays a number of other critical roles in the body as well. As an example, plant foods are rich in fiber that can promote optimal gut health, keep you at a healthy weight, and even reduce your risk of heart disease. This is because they provide a healthy source of roughage.
Hope this helps :)
Need help please with this
TSH controls hormone synthesis, ADH decreases urine, melatonin is involved in circadian rhythm, TH regulates metabolism, insulin is produced in the pancreas and Aldosterone regulates salt.
What is a hormone?A hormone is a chemical messenger used by the body to play a specific function and thus maintain homeostatic balance.
Hormones are secreted by specialized cells such as insulin that is secreted by pancreatic islet cells in this organ (i.e., the pancreas).
In conclusion, the function of TSH is to control hormone synthesis in the thyroid, ADH decreases the amount of urine, melatonin is involved in circadian rhythm, TH is a thyroid hormone that regulates metabolism, insulin is produced in the pancreas and Aldosterone regulates salt amount.
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What is used as evidence to develop a phylogenetic tree?
A. the fossil record
B. only living organisms
C. drawings of older species that are extinct
A phylogenetic tree is the representation of the evolutionary relationships among species. The fossil records are used as evidence to develop a phylogenetic tree. Thus, option A is correct.
What is a fossil record?A fossil record is a depiction of the organisms that shared common ancestors and depicts the change in the structural and functional unit of the organism over many years of time.
They are used to illustrate the phylogenetic tree to show the morphological, structural, chemical, anatomical, etc variations in species that shared ancestry.
Therefore, option A. fossil records are used to show the common ancestry at the nodes.
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Answer: A. the fossil record
Explanation:
Which type of bond forms between water molecules?
capillary bond
hydrogen bond
covalent bond
polar bond
The answer is hydrogen bond.
Between water molecules, hydrogen bonds can be seen, which is due to the polar nature of water.
Why human, monkey, horses and birds are considered to have evolved from the same ancestors?
Answer:
Everything at some point belonged to a common ancestor, but these four species are considered to be like this because of similar ancestral traits that have been passed on to generations such a homologous pairs, vestigial structures, they are all mammals, similar amino acid sequences, vertebraes, etc.
In which step of the design process do you test the design?
Evaluate the design.
Communicate the design.
Make a prototype.
Identify the goal.
Answer:
Here it is- xXMonkey
My Best Guess:
Make a prototype
Which goals are more effective since they depend on factors that you can control?
Answer:
Explanation:
Endurance. Effective goals are demanding but achievable, is a description of what goalsetting principale. Set challenging and realistic goals. To restore energy levelss within the muscles and recover from fatique is a function of what principle. Rest.
What is the function of the enzyme amylase?
Answer:
Explanation:
Amylases' main function is to hydrolyze the glycosidic bonds in starch molecules, converting complex carbohydrates to simple sugars. There are three main classes of amylase enzymes; Alpha-, beta- and gamma-amylase, and each act on different parts of the carbohydrate molecule
soil fertility diagnosis
Answer:
Diagnostic testing for nitrogen soil fertility can provide a very effective guide to nitrogen fertilizer management. Diagnostic N testing requires sampling of the subsoil, at least to the third foot depth. The soil test N index is the total of nitrate-nitrogen from the surface layer to the depth sampled
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Which of these is the most important reason to reduce demand for renewable resources?
To allow resources to be replenished naturally is the most important reason to reduce demand for renewable resources.
The term "renewable resources" refers to natural resources that are replenished by nature. These are resources that can be used indefinitely and are replenished naturally, such as sunlight, water, and air, among others. Natural resource exploitation and consumption harm the ecosystem and cause pollution. Utilizing less natural resources, such as wood and fossil fuels, will safeguard both environmental and human health. A natural resource that can be replenished to replace the portion used up by usage and consumption is known as a renewable resource, also known as a flow resource. This replenishment can occur naturally through reproduction or through other recurring processes in a limited amount of time on a human time scale.
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What is a hypothesis?
A. A random guess
B. An educated prediction based on knowledge
C. A theory
D. A way for scientists to make up lies
