Answer:
The cell was first discovered and named by Robert Hooke in 1665. He remarked that it looked strangely similar to cellula or small rooms which monks inhabited, thus deriving the name. However what Hooke actually saw was the dead cell walls of plant cells (cork) as it appeared under the microscope.
two advantages of using meters as a measurement of length rather than old measurements of length
Answer:
Explanation:
Metric measurement is easier to learn because the units name have the same root word all over places that it is being used.
Accuracy
The use of meter ensures accuracy of measurement rather tham using the old method
It is an easier and convienient method to use in taken measurement.
It is an international system of unit hence it allows for continuity and transparency anywhere in the world.
It allows accurate conversion rate when using meter than old method.
What does it mean to be living?
Answer:
life depends on many chemical and physical processes
that’s I pretty vauge question and I could have multiple answer I think being alive is simply not dying yet
If someone is blood type O, then their blood contains antibodies for which antigens?
A. Neither Anor B
B.A
C. Both A and B
D.B
Answer:
I'll go with choice C...they have both atibodies A and B
Jerome is writing a paper about animal cell parts and organ systems that have similar functions. Which statement about the
similarity between a cell's membrane and the integumentary system could Jerome include in his paper?
please help
Answer:
They both provide protection for other structures.
Explanation:
Which of the following accurately describes the thermocline profile along the equator?
A. Due to constant temperatures, there's no thermocline in the tropical region. .
B. The equator is susceptible to extreme storms so the thermocline changes significantly throughout the year.
C. Due to constant temperatures, there's no thermocline in the polar regions.
D. The thermocline stays relatively stable throughout the year.
Answer:
B. The equator is susceptible to extreme storms so the thermocline changes significantly throughout the year.
Explanation:
Storms occurs on that locations where there is high temperature and high temperature is only present at the equator due to direct sunlight. So we can say that maximum storms comes at and near the regions of equator. The oceans present near the equator have a warm layer known as thermocline from where water is evaporated and the intensity of storms are also increases.
2. Copy/paste and align the first 5 bases of all introns. Which bases are conserved near intron start ("donor site")?
Answer:
This question is incomplete
Explanation:
Introns are non-coding regions of a DNA that removed by RNA splicing prior to translation. Alignment is usually done between sequences to see and understand the identity and similarity between two or more sequences.
A region/base is said to be conserved if there is NO change in any base in that particular region. A multiple sequence alignment (MSA) can be used to align the donor sites of all the introns to see the bases that have not "changed" (and still remained in there exact position) hence conserved across all the donor sites.
NOTE: The donor site of an intron is the 5' end, thus the first five bases in the 5' end are to be used here
You have formulated a hypothesis: "Mangos contain more vitamin C than oranges." To test your hypothesis you measure vitamin C levels in 20 oranges and 20 mangos from trees that were grown in the same orchard under the same environmental conditions (temperature, rain, sunlight). What is the independent variable in this experiment?
Question options:
A) The amount of rain and sunlight the trees received
B) Vitamin C levels
C) The type of fruit
D) The type of soil the trees grew in
Answer:
B) the type of fruit
Explanation:
The independent variable is the value that the experimenter changes/controls. The Vitamin C levels depend on the type of fruit, so the fruit is the independent variable. Hope this helps!
The value that the experiment modifies or controls is known as the independent variable. Fruit is the independent variable because fruit types vary in their quantities of vitamin C. Thus, option B is correct.
What is the independent variable?“X” is frequently used to indicate an independent variable. It is a variable that is independent of other variables.
The elements or circumstances that you can change in an experiment are referred to as independent variables. A dependent variable's value may be directly impacted by this variable.
The definition of an independent variable is exactly what it says. It is a stand-alone variable that is unaffected by the other variables you are attempting to assess. Age, for instance, could be an independent variable.
Anticipated to have an impact on the dependent variable. The experiment has no effect on this. It is a variable that can be altered by researchers to examine the independent variable.
Therefore, fruit is the independent variable, to vary in their quantities of vitamin C.
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A(n) scientific
is a simple representation of a more complex system.
Answer:
A model scientific is a simple representation of a more complex system.
Explanation:
The scientific model is a simplified representation of scientific systems that are more complex or impossible to see by the human eye, such as an atom or a solar system. Although this representation is simplified, it has the responsibility to produce all the essence, content and behavior of the original systems, thus allowing the models to be used in scientific studies and research and to promote concrete results that provide accurate information about the original systems.
Label the membranes in the transverse section through the thorax.
Answer:
Please see below
Explanation:
A transverse section of the thorax has been attached as an image herein.
The thorax is essentially the chest area of the organism's body. Inside the thoracic cavity, the serous membranes (known as pleurae) are responsible for separating the lungs from the boundary of the thorax. Visceral pleura is present on the external side of the lungs. The parietal pleura is present on the inner side of the thoracic cavity and the diaphragm. In between the 2 pleurae, there is a lining of serous fluid present.
Cell to cell communication is a key component of higher order biological organization and responses. Communication evolved billions of years ago among ancient bacteria. There are 7 characteristics of life. Which characteristic is used for cell-cell communication? A) living things reproduce B) living things grow and develop C) living things are composed of cells D) living things respond to their environment
Answer : (D)
Explanation: Just as we communicate to each other to initiate a response, cells must also communicate. Of the 7 characteristics of life the characteristic that states a living things respond to their environment most closely relates why cell communication is important and it evolved
Energy through
an ecosystem,
whereas nutrients are
Answer:
Flows; Recycled
Explanation:
A scientist was observing a specimen under a microscope. He obtained the specimen from pond water. He observed that the specimen was egg shaped, had hairy structures all over its body, and was covered by a membrane. He also noticed two nuclei in the specimens body. To which phylum did the organism belong?
Answer:
The correct answer is : ciliophora is the phylum.
Explanation:
Ciliophora is a phylum which comprise organism of ciliates groups. Ciliates are protozoans found in aquatic or near aquatic conditions. These organism have egg like body in shape however some have different shape. The major characteristic feature is cilia, a hair like structures present on the body of these organisms.
They have cell with cytoskeleton, cilia, two different types of nuclei.The hair like structure called cilia used for collecting food and movement or locomotion.
Thus, the correct answer is : ciliophora is the phylum.
Answer:
B. ciliophora
Sid wants to compare two different brands of batteries. Which of the following experiments would help sid do this? A. Use one battery brand in a portable radio and the other brand in a remote-control car and compare their performance. B.Use one battery brand to power a handheld fan on a hot day and the other battery brand to power the fan on a cold day. C. Compare how long it takes to recharge a size AA battery from one brand with how long it takes to recharge a size D from the other brand. D. Use each battery brand on the same portable radio and measure how long the batteries last.
Answer:
Use each battery brand on the same portable radio and measure how long the batteries last.
Explanation:
When comparing things to each other in an experiment, the only difference in the experimental set-up should be the things being compared. In this case, the battery brand is the thing being compared, and so everything but the brand should remain the same.
Answer:
D. Use each battery brand on the same portable radio and measure how long the batteries last.
Explanation:
When comparing things to each other in an experiment, the only difference in the experimental set-up should be the things being compared. In this case, the battery brand is the thing being compared, and so everything but the brand should remain the same.
What is a sperm cell
Answer:
Sperm is the male reproductive cell, or gamete, in anisogamous forms of sexual reproduction. : )
Why is it important to pull the inoculating needle out of the FTM via the same path you inserted it?
Answer:
to minimize the amount of oxygen introduced to the contents of the tube.
A team of researchers is investigating the effects of anewchemotherapy drugon the growth of tumors. They find three patientsto participate in the experiment.Patient oneis 24 years old, one is 25 years old, and one is 82 years old.The team provides 1 week of chemotherapy to the 24-year-old, 3 days of chemotherapy to the 25-year-old, and 4 weeks of chemotherapy to the 82-year-old. They then collecteddata on tumorgrowth in each patientimmediately after the first day of chemotherapy.They found that the tumors did not grow from the initial measurementsprior to chemotherapy. Based on this theteam concludes that the new chemotherapy drug is very effective
Answer:
experiment-a treatment was given to the patients [fish oil or placebo]
UwU
Which of the following is an example of an emergent property?
Answer:
When gears and other structures are assembled into a bicycle, the entire assembly can propel the rider.
Hope this helps :)
The emergent property is that cell is the basic unit of life, one or more cells combine to form organism. The correct option is A.
What is emergent property?An emergent property is a distinctive feature that an entity acquires after becoming a part of a larger system.
Emergent properties aid in the adaptation of living organisms to their surroundings and enhance their likelihood of survival.
Carrying capacities for all species in an ecosystem's biological community are an emergent phenomenon of the ecosystem in its entirety because each species' food supply is a result of what happens in other parts of the ecosystem.
In the given scenario, cells being the basic fundamental structural unit of life, is forming a complete organism. This property of cell is indicating the emergent property.
Thus, the correct option is A.
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Your question seems incomplete, the missing options are attached in the image below:
8th Grade Science question I’m in a hurryyy
Which of the following most accurately represents the various feeding relationships within an ecosystem?
A. A feeding diagram
B. A food web
C. A food chain
D. A biomass pyramid
Why don’t prokaryotic cells divide through mitosis?
Mitosis requires a cell membrane, and prokaryotes don’t have a cell membrane.
Mitosis and cytokinesis require cytoplasm, and prokaryotes don’t have cytoplasm.
Mitosis is division of the nucleus, and prokaryotes don’t have a nucleus.
Mitosis requires DNA and chromosomes, and prokaryotes don’t have chromosomes.
Answer:
Prokaryotes such as bacteria propagate by binary fission. ... In bacterial cells, the genome consists of a single, circular DNA chromosome; therefore, the process of cell division is simplified. Mitosis is unnecessary because there is no nucleus or multiple chromosomes. This type of cell division is called binary fission.
Explanation:
i hope this helps
Answer:
Mitosis is division of the nucleus, and prokaryotes don’t have a nucleus
Explanation:
Gradpoint
This frog is about to be food for a snake. Which type of nutrition does the snake use, and which type of nutrition does the frog use? Justify your answer. If you do a CORRECT OR PLAUSIBLE ANSWER I WILL GIVE BRAINLIST
Answer:
both frog and snake use heterotrophic nutrients type.
Investigate and draw the structure (and provide the name) for 3 common antioxidants that are commonly consumed and write a detailed description of how these antioxidants work. Then, provide a mechanism clearly illustrating how one of the antioxidants works
Answer:
vitamin A.
vitamin C.
vitamin E
Explanation:
Vitamin A act as an antioxidant in our body by neutralizing the free radicals present in our body which are responsible for a great damage in our body. polyene units present in vitamin A is responsible for neutralizing the thiyl radicals and peroxyl radicals which causes oxidation. Vitamin C has the ability to stabilize ascorbyl-free radical by giving the hydrogen atom which removes the oxidizing agent from the body. Vitamin E is responsible in order to stop the formation of Reactive oxygen species that cause oxidation in our body when the oxidation of fats occur.
What do you feel really got the biotech industry started and how was it different from what came before it? g
Answer:
When the human being realized that he could use living beings or their derivatives to produce products of human interest on a large scale, the biotech industry started. This sector was different from what existed before it, because it used tiny elements such as proteins, bacteria and DNA, to manufacture the products.
Explanation:
As you may already know, biotechnology is the science that allows the use of living beings and their derivatives for the manufacture of biological products much needed in human daily life. Biotechnology has been used since the beginning by mankind. This can be seen in the manufacture of bread and wine, for example. However, this science only became something industrial, when the human being realized that it was advantageous to use organisms for the production of products on a large scale.
This was an industrial innovation, since until then, the industry did not use organisms and elements so small for the production of its products.
Which of the following correctly pairs the macromolecule with its monomer?
A. protein- monosaccharide
B. Lipids- Fatty acid
C. carbohydrate- amion acid
D. nucleic acid- amino acid
Answer:
The correct answer is : option B. lipids - fatty acid.
Explanation:
Fatty acid and glycerol are the building blocks or monomers of the lipids, lipids itself is a building block that make a cell structure and cell function. These are acts as component for cell membrane, helps in signalling and storehouse for energy.
Amino acids are monomer of protein molecule, monosaccharides for carbohydrate and nucleotide are monomer of nucleic acid.
Thus, the correct answer is : option B.
The branch of science which deals with a living being is called biology.
The correct option is B.
There are 4 types of biomolecules present in the cell, these are as follows:-
CarbohydratesProteinLipidsInorganic saltAll these polymers are made up of monomers. The repetitive attachment of the monomer will join together to form a polymer.
The monomers are as follows:-
Protein -- amino acidCarbohydrates- sugarNucleic acid - NucleotideLipid - fatty acidsHence, the correct option is B that is Lipids- Fatty acid.
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What is the difference between and acid and a base
hope that helps !
When is it okay for a client to become intimately involved with their trainer? A. If both parties consent to it B. Never C. If the trainer's manager knows about it D. Always and involves momentum
Answer:
B. Never
Explanation:
Personal trainers (PT) are individuals hired to improve the fitness (mostly by exercise or dieting) of another person, known as the client. Not only do personal trainers possess the skills and knowledge to go about their jobs, they are also certified, hence, making them professionals at what they do.
Series of conversations, sometimes personal can occur between the PT and the client in order to extract information needed to successfully help the client. However, a personal trainer is mandated to be PROFESSIONAL while performing this role. One of the professional ethics of the job is that personal trainers are NEVER to get into any intimate relationship with their clients. This is a serious offence that can cost a trainer not only his/her job but also professional license.
Answer:
never
Explanation:
The scuba diver is a living system. The scuba gear or self- contained underwater breathing apparatus, is a system of air exchange. How are these two systems interacting? What are inputs and outputs of these systems
Answer: The carbon dioxide is the output and oxygen is the input of the Scuba apparatus.
Explanation:
The scuba apparatus is a life saving apparatus used by the sea divers. It recycles the exhaled gas and removes the carbon dioxide and compensates for the utilized oxygen gas before the diver is actually supplied with the gas for the purpose of breathing in a circuit. Hence, the carbon dioxide gas is the output and the oxygen is the input.
Which of the following steps comes after the hypothesis and prediction step in the scientific method? A. Observation B. Results and interpretations C. Analysis of data D. Experiment E. Publication
Answer:
D. Experiment
Explanation:
Because the steps are
1.Question:
2.Research
3.Hypothesis: .
4.Experiment:
5.Observation:
Which of the following is one of the seven basic characteristics used to classify living things?a. possession or lack of lysosomes.b. the presence or absence of hair.c. presence or absence of four limbs.d. ability or inability to do photosynthesis.e. the presence or absence of yellow pigment.
Answer:
D.ability or inability to do photosynthesis
Explanation:
Because feeding is one of the features of living things and green plants feed by photosynthesis which is the process where by they convert light energy to chemical energy in the presence of chlorophyll
Answer:
D
Explanation:
Classification in living things can be done using different factors, the system of classifying living thing scientifically is called taxonomy.
The ability of an organism to photosynthesize is one of the main characteristics of classifying.
All green plants, some bacteria and Algae that has chlorophyll content photosynthesize to produce their own food, this makes them less dependent but a primary producer.
This ability to is used to differentiate between photosynthetic organisms and non photosynthetic organisms and also help classify living organism
How do environmental scientists use technology to track gray wolves ?
Answer:
by using GPS labels
Explanation:
Different sensing technologies are nowadays used to track animal movement. In particular, terrestrial animal sensing technologies include, among others, Global Positioning System (GPS), radio telemetry, acoustic telemetry, environmental sensors, automated data-retrieval, etc. These technologies allow us to learn more about animal behavior and provide useful information for ecological/environmental researchers. In the case of GPS, satellite networks can be used to track migratory patterns.