Answer: Free nerve endings
Explanation:
A free nerve ending can be defined as the bare nerve endings that are unspecialized afferent nerve fibers which sends its signal to sensory neuron.
The main function of these nerve endings is to being the signals to the brain from the periphery of the body. They can sense itch, hair movement, temperature, pain et cetera.
Answer:
The cell membrane help to maintaining homeostasis by regulating the flow of substances through it and by recognizing potentially harmful agents to the cell.
Explanation:
Cellular membrane is constituted by a lipidic bilayer, whose characteristics allow it to behave as a semi-permeable membrane to the passage of substances.
The selective permeability of the membrane makes it possible to regulate the passage of water, molecules and ions through it into the cell and from there into the extracellular space, a characteristic that allows the maintenance of homeostasis.
Additionally, the cell surface can identify foreign and potentially harmful agents, which can affect the internal balance, preventing in most cases their passage into the cell.
The cell membrane maintains homeostasis through its selectively permeable nature which controls the transport of substances in and out of the cell. The fluidity and flexibility of the cell membrane is crucial in this process. In addition, it provides cell identification and controls interactions with the environment.
The cell membrane plays a crucial role in maintaining homeostasis by controlling the content of the cell. It does this by being selectively permeable, which means it allows only certain molecules to pass through. Transport of materials such as water, oxygen, nutrients, and waste products in and out of the cell is managed by the membrane transport mechanisms.
The cell membrane's fluidity aids this process, enabling proteins to move to areas where they are needed. Furthermore, it is flexible enough to let cells like red and white blood cells change shape as they navigate through narrow capillaries.
Moreover, the cell membrane is responsible for defining the cell's borders and managing its interaction with the environment, including taking in substances, excluding others, and excreting in controlled quantities. It also carries markers that allow cells to recognize each other, a crucial ability for tissue and organ formation, and immune response.
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B. Classification can change with new discoveries and evidence.
C. Classification does not change with more evidence.
D. Phylogenetic trees are inaccurate.
Answer;
B. Classification can change with new discoveries and evidence.
Explanation;
-Classifying organisms on the basis of descent from a common ancestor is called phylogenetic classification
-A phylogenetic tree is a visual representation of the relationship between different organisms, showing the path through evolutionary time from a common ancestor to different descendants. Trees can represent relationships ranging from the entire history of life on earth, down to individuals in a population.
Answer:
The correct answers are "A magnetic field is the area around a magnet where a force is exerted on certain objects", "Magnetic field lines spread out of the north end of the magnet" and "Magnetic fields are three-dimensional and resemble a bubble".
Explanation:
Three statements that define a magnetic field are:
1. "A magnetic field is the area around a magnet where a force is exerted on certain objects". Magnetic field force is driven by moving electric charges and the objects that are susceptible to the forces are known as electromagnetic objects.
2."Magnetic field lines spread out of the north end of the magnet". Magnetic fields are taken to be outward from the North pole to the South Pole. This direction takes place on Earth as well, because Earth function as a giant magnet.
3. "Magnetic fields are three-dimensional and resemble a bubble". Magnetic field forces are driven following a bubble like configuration and affects the objects upon this configuration.
Answer:
Guys the answer is "A", "D", and "E"
Explanation:
I don't know why you guys gave the guy above me a bad rating, give him 5 stars people, he is also right.
Have a Jocular Day
Taxonomy is the classification of organisms into a system that indicates natural relationships (evolutionary relationships). This theory describes, names, and classifies organisms.
According to evolutionary history and taxonomy, tigers resemble gorillas more closely than they resemble fish.
b. ATP, oxygen
c. oxygen, ATP
d. NADH, NAD+
Living organisms undergo vital processes such as respiration, excretion, digestion, and reproduction to survive.
Thus, the living organisms who respire aerobically use oxygen to break down glucose and release ATP molecules.
Learn more about Respiration here:
Answer:
Enzymes
Explanation:
Amoeba uses enzymes to breakdown organic molecules because enzymes are biological catalysts that help to speed up the rate of chemical reaction or breakdown large molecules.
Amoeba have vacuole which fuses to the lysosomes by cytoplasmic movements. The lysosomes are organelles that contain enzymes amylase and proteinase which help to digest carbohydrates and proteins.
An amoeba in a pond uses enzymes to break down the organic molecules in a paramecium that it engulfs and consumes.
An amoeba, a type of single-celled organism, engulfs its food and then breaks it down using a biological catalyst known as enzymes. The enzymes are involved in the process of digestion, which allows the amoeba to obtain nutrients and energy from its food, in this case, a paramecium. Enzymes work by lowering the activation energy for a reaction, making it easier for the reaction to occur and therefore the digestion process in amoeba happens more quickly.
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