A(n) ______ is the smallest unit of an element that maintains the properties of that element.
Question 2 options:
molecule
nucleus
atom
particle
The S-P interval of seismic waves recorded at a seismometer is 8 minutes. Approximately how far away is the earthquake’s epicenter from the seismometer? [equation: (S-P interval) = 0.00146 (distance to epicenter)]
a.8 km b. 550 km c. 5,500 km d. less than 1 km 12.
The correct answer would be 5,500!!
When a drug blocks reuptake or breakdown of a neurotransmitter by the action of enzymes, the drug is acting as an _____?
Neurons communicate with other neurons and stimulates effector cells which includes both blank and blank?
Neurons use electrical and chemical signals to communicate with other neurons and with effector cells, which are muscle cells and glands. They do so through synapses where neurotransmitters are released to convey signals.
Neurons communicate with other neurons and stimulate effector cells which includes both muscle cells and glands.
Neurons are excitable cells capable of creating tiny electric currents to transmit signals. They consist of dendrites, a cell body, and an axon. The dendrites carry information toward the cell body, and then the signal travels along the axon to reach either another neuron or an effector cell. At the point of contact, which is the synapse, neurotransmitters are released to convey the signal to the next cell. Muscle cells and glands are common targets for these signals, ultimately resulting in motion or secretion, respectively.
The communication between neurons, and from neurons to effector cells, is essential for the nervous system to control body functions, ranging from the simple reflex action to complex behaviors and cognitive processes.
What part of the brain triggers a head movement in response to a loud sound in the environment?
The brain stem, particularly through the brain stem reflex, is responsible for triggering a head movement in response to a loud sound, after the inner hair cells of the cochlea in the auditory system detect the sound and send signals via the auditory nerve.
The part of the brain that triggers a head movement in response to a loud sound is primarily the brain stem, specifically the reflex pathways within it. When a loud sound occurs, it is detected by the inner hair cells in the cochlea of the auditory system. These cells convert the sound vibrations into electrical signals that are transmitted to the auditory nerve. This auditory information then reaches the brain stem where an automatic response, the brain stem reflex, is initiated to draw attention to the sound. This reflex can lead to various reactions, including turning the head toward the sound source.
In which stages of meiosis are the chromosomes considered tetrads?
Describe the relationship between scientific research and the use of environmental resources
What’s the answer to number 13? I’m stuck
Name the two kingdoms that only contain prokaryotes.
All the areas of the planet that will support life
A) Biome
B) Biosphere
C) Ecosystem
D) Population
your best answer is Biosphere
which answer best explains why the townshend acts were passed
A) to raise money for Great Britain's debts
B) to punish the colonies for the Boston Massacre
C) to prevent colonists from protesting against Great Britain
D) to punish the colonies for the Boston Tea Party
Your small intestine can absorb ____ without any prior digestion into smaller molecules
Which of the following is not an example of a molecule?
A. KOH
B. H2S
C. 03
D.Mn
Answer:
Mn is the answer
Explanation:
Mn is not an example of a molecule. Mn represents the chemical symbol for the element manganese, the correct option is D.
Mn is the chemical symbol for the element manganese, and it is not an example of a molecule. In the context of chemistry, elements are the basic building blocks of matter, and they consist of only one type of atom. Manganese is an element with atomic number 25, and its chemical symbol is Mn.
Molecules, on the other hand, are formed when atoms of different elements combine through chemical bonds. For instance, [tex]H_2O[/tex] (water) is a molecule made up of two hydrogen atoms and one oxygen atom. Therefore, Mn, being a single atom representing an element, is not a molecule, the correct option is D.
To learn more about molecule follow the link:
https://brainly.com/question/32298217
#SPJ6
What is the difference in structure between plant and animal cells?
what are the three main parts of the scientific process?
a) predicting, inferring , and drawing conclusions
b) activating knowledge, and inferring
c) observation, experimentation, and scientific
d) data collection, analysis, and hypothesis formation
The scientific process consists of three main parts: observation, experimentation, and scientific reasoning.
Option (c) is correct.
Observation involves gathering information about a phenomenon or a problem through the senses or using instruments. It is the first step in the scientific process and provides the foundation for further investigation.
Experimentation involves designing and conducting controlled experiments to test hypotheses or theories. Through carefully planned experiments, scientists manipulate variables and collect data to analyze and draw conclusions.
Scientific reasoning is the process of analyzing data, evaluating evidence, and drawing logical conclusions based on the results of experiments. It involves critical thinking, interpreting data, and identifying patterns or relationships.
The scientific process is an iterative and ongoing cycle. After drawing conclusions, scientists often refine their hypotheses and design new experiments to further investigate the topic or expand knowledge in the field.
While options a), b), and d) touch upon aspects of the scientific process, option c) provides a more comprehensive and accurate representation of the main components involved in scientific inquiry.
To learn more about scientific process here
https://brainly.com/question/1347425
#SPJ2
The hypothesis that the great serpent mound may relate to halleys comet is bolstered by
As newts' poison became more toxic, the garter snake's resistance to it became more efficient. This is an example of _____. coevolution divergent evolution convergent evolution adaptive radiation
Answer:
Coevolution
Explanation:
Coevolution is the process of reciprocal adaptation of two or more species or populations due to their close interaction for a longer period of time. It is a mutual adaptation and occurs by development of certain morphological and behavioral features in each of the species. Increased efficiency of Newt's poison is rendered less harmful by garter snake as they develop more resistance for it.
A human skin cell, in prophase of mitosis, contains 46 chromosomes. how many chromatids does it contain in total?
When body temperature rises, a center in the brain initiates physiological changes to decrease the body temperature. this is an example of diagnostic regulation. positive feedback. negative feedback. nonhomeostatic regulation. fever?
When body temperature rises, a center in the brain initiates physiological changes to decrease the body temperature. this is an example of negative feedback.
Further explanation
A normal human's body temperature is 37°C. A center in the brain initiates physiological change to help maintain our body temperature is called hypothalamus. The main job of the hypothalamus is to maintain homeostasis and to control certain hormones.
When we are exercising, the hypothalamus senses that you are too hot, then it sends signals to your sweat glands to make you sweat and cool you off. When the hypothalamus senses that you are too cold, it sends signals to your muscles that make you shiver and create warmth.
Maintenance of homeostasis usually involves negative feedback loops. Negative feedback is a reaction that causes a decrease in function. It occurs in response to some kind of stimulus.
On the other hand, positive feedback loops are usually found in processes that need to be pushed to completion, for example in the process of childbirth. The neurons send a signal that leads to release of the hormone oxytocin from the pituitary gland. The positive feedback continues until the baby born.
Learn more
Hypothalamus https://brainly.com/question/410831
Maintaining body temperature https://brainly.com/question/1196542
Keywords: negative feedback, body temperature, maintaining body temperature
Why do cells have plasma membrane?
A. To separate the inside of cell from its environment
B. To separate proteins from the nucleus
C. To define the size of cell
D. To distinguish plants from animals
What are intelligent buildings designed to do?
All organisms are capable of _____.
a. quick escape from predators.
b. changing shape to blend into their surroundings.
c. consuming other organisms.
d. growing and reproducing.
Answer:
the answer is D
Explanation:
i did the quize on this
The commonly used acronym for the condition of joint pain due to wearing down of the articular cartilage, sometimes resulting in bone-on-bone contact, is __________.
Scientists once believed that Tyrannosaurus rex dragged its tail along the ground. Today, they know that T. rex did not drag its tail but held it aloft, above the ground. This change in scientific consensus happened because
Answer:
Because all the scientific discoveries must be supported by various studies in order to regarded as valid.
Explanation:
It is known that scientific discoveries are getting updated and renewed constantly, however, both of these have nothing to do with the believing in one's idea more than another. It is also witnessed that some of the scientists do support the notion that the T-rex dragged its tail. However, now it is known that T-rex did not drag its tail but held its aloft above the ground. This change in scientific consensus by various scientific discoveries, which would have been supported by numerous studies in order to be regarded as valid.
In which of the following ways is DNA replication similar to transcription?
A) New cells are created after both have happened.
B) Cytosine pairs with guanine in both.
C) Both take place in the cell cytoplasm.
Answer:
B) Cytosine pairs with guanine in both.
Explanation:
DNA replication is the process by which DNA makes an identical copy of itself during cell division. In this process the DNA polymerase adds a new strand of DNA to the template strand by matching Cytosines with Guanines and Adenines with Thymines.
In transcription a copy of a specific DNA fragment is made, however, this copy has Adenines paired with Uracils instead Adenines with Thymines.
In both, replication and transcription Cytosine pairs with guanine.
A substance received or given off by your body will likely pass through which type of tissue?
A ____________ serves as a wrapping around largely mobile joints and secretes synovial fluid that serves to lubricate joint movement.
The phenotype frequency in a population changes after each generation. which would most likely be causing this? apex
organisms compete for shelter is correct
Define and understand what isomers are
When compounds that are formed from ionic bonds decompose, the products are usually _____. atoms of the original reactants simple molecules ions of the original elements of no further chemical value
-Ions of the original elements
When compounds that are formed from ionic bonds decompose, the products are usually ions of the original elements.
Explanation;Ionic bonds are bond that are formed by metals and non metals, where metals loose electrons while non metals gain electrons to form stable atoms.The loss of electrons by metals results to formation of cations (positively charged ions) while the gain of electrons by non metals results to formation of anion (negatively charged ions). When they combine they form ionic compoundsWhen these ionic compounds decompose they form ions of original metal. For example NaCl which is an ionic compound will decompose to form sodium ions and chloride ions.