Answer:
Theories may be revised over time as information is discovered or technology is developed.
Explanation:
A scientific theory is a term used when a statement tries to explain a natural phenomenon of nature based on scientific facts. In short, a theory is the representation of a set of hypotheses that was confirmed through an experiment and that tries to explain a phenomenon, but leaves room for revisions and updates to its explanation.
For this reason, we can say that theories are reformulated, revised and even discredited, when the advancement of scientific knowledge and technology allows the creation of new studies that show a different explanation and more consistent with reality.
Answer:C
Explanation:
Two students are planning an experiment that will test how planaria (aquatic flatworms) respond to different environments. They will conduct two investigations—one that tests the worms’ responses to different water temperatures and one that tests the worms’ responses to different levels of acidity. Student 1 wants to buy two groups of flatworms and use a different group for each investigation. Student 2 thinks the same group of worms should be used for both investigations.
Do you think either student’s method would give more accurate results? Why or why not? Explain your response.
Student 2 is correct and the same group of worms should be used.
What is an experiment?An experiment is the process by which we establish cause and effect relationships in science. The control variable are those that must be kept the same in the experiment.
We know that the experiment will only be valid if the research is carried out with the same group of worms. If different groups of worms are used, other factors may account for the results obtained.
Thus student 2 is correct and the same group of worms should be used.
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Which of the following is the best definition of an unsaturated fatty acid? 8 A. A basic unit of a lipid that consists of single and double carbon-to- carbon bonds B. A compound that carries hereditary information C. An insoluble compound made up of glycerol and three fatty acids D. A basic unit of a lipid that consists of only single carbon-to-carbon bonds
which question can be using the scientific process
Answer:
I'm not great with this subject... but what are the questions given? I may be able to help in that way
Explanation:
Which characteristic of life is being shown by the following image?
O Organisms react to stimuli
O Organisms grow and develop
O Organisms can adapt
O Organisms are made up of cells
O Organisms can use and obtain energy
Answer:
d
Explanation:
organisms are made up of cells
What molecule is the final electron acceptor in the Electron Transport Chain?
The final electron-accepting molecule in the electron transport chain is oxygen.
Role of oxygen in the electron transport chainOxygen mainly acts as an electron acceptor in the electron transport chain. More specifically, it acts as the final electron acceptor to ensure that oxidative phosphorylation takes place.
Without this final electron acceptor, the electron transport chain will not be able to complete the cycle, and energy molecules in the form of ATP will not be formed.
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What was the background information that Schleiden and Schwann
needed to perform their experiments about cells?
Theodore Schwann and Mattias Schleiden needed the background information about cell is that how cells originate and functions in the body of animals as well as plants.
What is the contribution of Schwann and Schleiden?Schwann and Schleiden proposed the cell theory, which states that all living organisms are composed of one or more cells. The cell is the basic unit of structure and function in organisms.
Each cell arises from a pre-existing cell.
The basic information that Schwann and Schleiden needed before performing the experiments about cells is how cell-derived in this nature become the most important part of life in living entities.
They also wanted to know the actual function and metabolic activities of the cell.
Therefore, it is well described above.
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‼️URGENT‼️
I really need help with this one problem
Answer:
C.
Explanation:
A. This makes no sense because the chart is only about the number of fish not about the number of plants that have grown
B. Makes no sense???
C. This is correct because it provides a reason why the number of fish in the stream next to the orchard have decreased
D. Makes no sense as well
In adult circumcision, a ________ incision is made in the skin and carried circumferentially.
During adult circumcision, a dorsal incision is made in the skin of an individual and carried circumferentially.
What is circumcision?Circumcision can be defined as a surgical procedure that involves a removal of the foreskin from the pe-nis (genital) of a male organism, especially at infant stage.
Based on medical information, a dorsal incision is made in the skin of an individual and carried circumferentially during the removal of the foreskin from the pe-nis (genital) of an adult (adult circumcision).
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What animal group lacks true tissues and includes species that are asymmetrical
The animal group which lacks true tissues and includes species that are asymmetrical is referred to as sponges.
What is Sponges?These are invertebrate animals which belong to the phylum porifera and consists of lots of pores.
They don't give equal parts when divided into half and they lack the presence of true tissues.
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The animal group which lacks true tissues and includes species which are asymmetrical is; Sponges.
Which animal group includes species that are asymmetrical?It follows from biology of classifications that the defining characteristic of sponges includes the fact that they lack true tissues and the species are asymmetrical. Hence, the features indicated in the task content are suggestive of sponges.
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A husband and wife have two sons. One boy has a straight thumb, while the other has a bent thumb. What causes this difference?
What kind of calls are usually smaller and found in simpler forms of life
What accurately describes a difference between fungi and plants?
Fungi are different from plants in that they are achlorophyllous.
Fungi vs plantsFungi and plants are both eukaryotic in nature when it comes to their cells.
However, plants differ from fungi in that plants contain a green pigment known as chlorophyll while fungi do not. The green pigment enables plants to photosynthesize.
Thus, fungi are said to be achlorophyllous.
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write the categories of classification in hierarchical sequence
Answer:
these are the seven taxonomic units:
Kingdom -it has the largest number of members and also the largest taxonomic unit
phylum (animals)/division (plants)
class
order
family
genus
species-it has the least number of members who freely interbreed to give rise to an infertile of spring
Explanation:
hope you got it! if there's any question feel free to ask .good day.
Answer:
Kingdom
Phylum/division
Class
Order
Family
Genus
Species
Explanation:
formulae
King
Philip/David
Can
Order
For
Green
Soaps
What blood vessel is a tributary of the hepatic portal vein?
According to the research, the linear vein is a tributary blood vessel of the hepatic portal vein.
What is the hepatic portal vein?It is a blood vessel that carries deoxygenated blood from the digestive organs and the spleen to the liver.
The linear vein is one of the branches of the celiac trunk that supplies the spleen and gives off branches to the stomach and pancreas.
Therefore, we can conclude that according to the research, the linear vein is a tributary blood vessel of the hepatic portal vein.
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Why do you think the bones of the legs are at particular risk for fractures in rod
A comparison that does not use "like" or " as" is known as ...
hyperbole
onomatopoeia
metaphor
simile
Answer:
Metaphor is the answer.
What are the defining characteristics of reptiles?
Reptiles are a group of vertebrate animals in the Reptilia class.
What are reptiles?
They are animals in the Reptilia class. Their main characteristics include:
They have backbones.Their body temperature varies with that of the environment.Their bodies are covered with scales.Fertilization is internal and reproduction is by laying eggs or giving birth to live ones.More on reptiles can be found here: https://brainly.com/question/15147975
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Active and passive immunity involves all of the following except receiving mother's antibodies through breast-feeding. exposure to a pathogen either naturally or by vaccination. memory B cells responding to a second exposure to the same pathogen. the stimulation of a nonspecific immune defense. receiving mother's antibodies through the placenta.
Explanation:
Immunity is the ability of an animal to resist infection.
There are two types of immunity in the body; INNATE OR INHERITED IMMUNITY AND ACQUIRED IMMUNITY. Inherited immunity it is the type of immunity that one is born with. It is passed from parent to offspring.
Acquired immunity is immunity to particular infections that is not inherited but has developed in the animal's life as it interacts with its environment. Acquired immunity can develop naturally in which case it is called NATURAL ACQUIRED IMMUNITY OR ARTIFICALLY.
ACTIVE IMMUNITY is the form of acquired immunity in which the body produces its OWN antibodies against infections. While PASSIVE IMMUNITY is the form of acquired immunity in which an individual is PROTECTED AGAINST INFECTION BY RECEIVING ANTIBODIES.
NATURAL ACQUIRED IMMUNITY
when attacked by the same pathogens again, they don't became seriously ill. this is because memory cells are able to recognise the antigens and stimulate the immune system to produce antibodies against the pathogens. This is known as NATURAL ACTIVE ACQUIRED IMMUNITY. It develops when one recovers from an infection.
During pregnancy, the mother passes antibodies across the placenta to the foetus. At birth the baby gets antibodies from the mother through breast milk. This is natural passive acquired immunity.
What are the two types of hypotheses used in a hypothesis test? how are they related?.
Answer:
the null hypothesis and the alternative hypothesis.
Explanation:
null contains a statement of equality (greather than or equal to, less than or equal to, equal to) and the alternative is the complement of the null hypothesis statement that must be true if H0 is false and it contains a statement of strict inequality (greater than, less than, not equal to)
Which represents a negative impact of technology?
A. Accessible technology
B. Production of waste
C. Improvement in climate
D. Access to more resources
Answer:
B
because it is harmful
summary of what occurs during transcription
The act of copying information from a strand of DNA into a fresh messenger RNA molecule is called transcription (mRNA).
DNA preserves genetic material as a reference or template safely and permanently in the cell nuclei.
The process of gene expression starts with transcription. A gene's DNA sequence gets transcribed into RNA during this process. The DNA double helix must unwind close to the gene being transcribed before transcription can begin. A transcription bubble is the term for the area of opened-up DNA.
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What is cladistics?
OA. The comparison of species based on common behavioral
characteristics
B. The comparison of species based on their geographic range
C. The comparison of species based on the presence or absence of
ancestral traits
D. The comparison of species based on common physical
characteristics
The comparison of species based on common physical characteristics Thus, the correct option is D.
What is cladistics?Cladistics is a method of biological taxonomy that organizes taxa in a branching hierarchy so that all members of a given taxon share the same ancestors and defines taxa uniquely by shared traits not present in ancestral groupings.
Clades, which are collections of organisms made up of an ancestor species and its offspring, are also identified through cladistics.
A cladogram only displays one probable phylogeny for a collection of organisms. It can shed light on the process of evolution. A cladogram should not be viewed as a representation of genuine evolutionary processes, though. It may or may not depict what actually occurred. It merely illustrates what might have occurred.
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Robert Hooke first observed cork under a microscope in jail so he named the small cubicles cells
False True
Answer:
False
Explanation:
The statement is false. Though "Robert Hooke" was the first person to observe cork under microscope. He named the small cubicles cells because it used to remind him of the cells in the monastery (a place for monks).
Answer:
False
Explanation:
RobERT Hooke observed the cork first and names the particles as cells .
But he did that in Monastery not jailHence the statement is false
What are the main functions of red blood cells ?
Answer:
carrying oxygen
This diagram shows a chemical reaction in which two glucose molecules combine to form a molecule of maltose.
Drag the labels to their appropriate locations in the diagram.
First, drag the labels of Group 1 to their respective targets to identify the types of sugars and the type of reaction shown.
Then drag the labels of Group 2 to their respective targets to identify the atoms, chemical groups, or molecules involved.
Not all labels will be used.
Option A is amino acids and D is peptide bond.
How protein is formed?Proteins are the polymer of amino acids which means that large number of amino acid combines to form protein molecule. The function of protein is to make muscle cells inside the body. The bonds present in protein are peptide bonds.
Proteins made up the structure of many enzymes or in other words, Enzymes are proteins that are comprised of amino acids which are linked together in one or more polypeptide chains.
So we can conclude that Proteins are the polymer of amino acids.
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he condition of the Earth’s atmosphere at a given place and time is known as __________.
A.
climate
B.
precipitation
C.
temperature
D.
weather
Answer: D weather
Explanation:
When cartilage is produced at the epiphyseal side of the metaphysis at the same rate as bone is deposited on the opposite side, bones.
Answer:
grow longer
Explanation:
In a long bone, the epiphyseal is the growing region. In young bones, bone formation occurs in a layer of hyaline cartilage. The epiphyseal plate forms cartilage on the epiphyseal end. Cartilage is calcified on the diaphyseal side, and the diaphysis lengthens.
It starts to grow longer
Sort the activities based on whether they decrease or maintain biodiversity.
The activities that decrease the biodiversity are excessive mining to obtain minerals and releasing sewage water into lakes.
The activities that maintain biodiversity are planting more trees and prohibiting fishing during breeding season.
What is biodiversity?The range of plant and animals on the planet or in a specific natural surroundings, that is significant and desirable.
Nature was despite everything is a productive wellspring of motivation in drug store, beauty care products, and agro-food enterprises for the revelation of bioactive items.
Informatics is currently present in most human exercises. In silico devices might help in various situations while concentrating on normal substances: in pharmacognosy, to store and construction the enormous and expanding number of information, and to work with or speed up the examination of regular items concerning conventional purposes of normal assets; in drug revelation, to soundly plan libraries for screening normal compound mimetics and distinguishing proof of organic exercises for normal items.
The activities based on whether they decrease or maintain biodiversity are:
Maintains :planting more trees
Decreases: excessive mining to obtain minerals
Decreases: releasing sewage water into lakes
Maintains: prohibiting fishing during breeding season
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Answer:
Explanation:
PLANTING MORE TREES EXCESSIVE MINING TO OBTAIN MINERALS RELEASING SEWAGE WATER INTO LAKES PROHIBITING FISHING DURING BREEDING SEASON
How many pressure points are in your arm?- don't answer if you don't want notifications-
Answer:
In acupressure, pressure points are thought to be powerfully sensitive parts of the body. Some people believe that by applying pressure to our body’s pressure points, it can help relieve pain, establish balance, and improve health throughout the body.
Explanation:
As an individual ages, new neurons and dendrites appear, but others atrophy. Compared to when they were adolescents, adults have fewer neural connections and their brain size _____ as they continue to age.
The brain and central nervous system shrink as we age.
What happens to the brain when we age?The brain is one of the most important organs in our body because all the nerve signals are produced there for our body to function.
In the brain we find nerve connections through neurons. A particular aspect of them is that during childhood and adolescence they multiply as we learn new things.
However, once we reach the stage of old age, these nerve connections deteriorate and are reduced, therefore, the size of the brain and the central nervous system decreases.
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