Answer:
it makes the food smaller
Explanation:
Mechanical digestion is a purely physical process that does not change the chemical nature of the food. Instead, it makes the food smaller to increase both surface area and mobility. It includes mastication, or chewing, as well as tongue movements that help break food into smaller bits and mix food with saliva.
The biological species concept cannot be applied to fossils. Which alternate approach to identifying species would be most useful for classifying fossil organisms? A. an approach based on genetic history B. an approach based on molecular biology C. an approach based on measurable physical traits D. an approach based on use of reproductive barriers
Answer:
C . an approach based on measurable physical traits
Which of the following represents the initial stage of learning in the process of conditioning? A. Acquisition B. Generalization C. Discrimination D. Stimulus contiguity Please select the best answer from the choices provided A B C D.
Answer:
A
Explanation:
Aquistion
During what stage(s) of the cell cycle is the cell actively dividing?
Answer:
interphase
Explanation:
The cell cycle has two major phases: interphase and the mitotic phase (Figure 1). During interphase, the cell grows and DNA is replicated. During the mitotic phase, the replicated DNA and cytoplasmic contents are separated, and the cell divides.
PLEASE HELP!
A. What kind of weather is associated with a low-pressure area?
B. What happens to the air of the low pressure areas that leads to this type of weather?
Answer:
clouds and precipitation that minimize temperature changes throughout the day
Explanation:
I just took the test and got an A on it
In aerobic respiration, glucose and oxygen are used up and carbon dioxide, water and __________ are released. What one word completes the sentence?
Answer:
energy
Explanation:
aerobic respiration is the term for the chemical reactions in cells that use oxygen to break down nutrients molecules to release energy. The energy produced is 2830kJ of energy
Kinetic energy is described as
Question 1 options:
Decreasing energy
Stored energy
Elastic
Movement
Answer:
elastic
Explanation:
The kinetic energy of a body can be decreased in two cases: When it is stored in the form of potential, for example: elastic or gravitational energy. Or when there are dissipative forces capable of transforming it into other forms of energy, as does the friction force. Which transforms kinetic energy into thermal energy.
PA BRAINLIEST
HOPE IT HELPS
GOD BLESS
There are various types of energy in the surrounding. The different types of energy are as follows:-
Wind energyHeat energyLight energyWater energyThe energy formed by the motion of any particle in a random manner is called kinetic energy. The energy is stored in the particle of the matter.
Hence, according to the question, the correct answer is movement.
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The action by which a fluid enters the microhematocrit tube because of the attraction between the fluid and the tube is called
The action by which a fluid enters the microhematocrit tube because of the attraction between the fluid and the tube is called capillary action.
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Explain please
Answer:
Site A W,X,Y,Z
Site B W,Z,Y,X
Explanation:
this is true believe meTrue or false: Most muscles contain a combination of all three muscle types, slow oxidative, fast oxidative, and fast glycolytic.
Thanks to what we know about muscles and the fibers they contain, we can confirm that the statement in the question is in fact true.
Muscle is a type of tissue which due to coordinated systems that make up their composition, have the ability to contract. This ability allows for greater efficiency. In humans, the muscle systems are classified into three kinds:
Cardiac muscleSkeletal muscleSmooth muscleDespite the different classifications and functions of each muscle type, each of these muscles contains a combination of three types of muscle fibers, which are the fibers listed in the question:
Slow oxidativeFast oxidativeFast glycolytic.To learn more visit:
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Which of the following is TRUE of the biodiversity on Earth?
1. There are more categorized than uncategorized species on Earth.
2. There are more uncategorized than categorized species on Earth.
3. There are no uncategorized species on Earth.
4. There are more known species of plants than any other group of organisms.
5. There are more species of mammals than species of insects.
Answer:
5.
Explanation:
Hope this helps. ||-//
The statement which is true about biodiversity on Earth is that there are more categorized than uncategorized species on Earth. Thus, the correct option is A.
What is Biodiversity?Biodiversity may be defined as the sum total of all living organisms found on the earth.
On Earth, there are about 8.7 million species found in which 95% of them are categorized but approximately 5-6% of the remaining are still uncategorized.
Insects have the highest number of species found in nature. It alone has over 7 lakhs of species.
Therefore, the correct option for this question is A.
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New genetic combinations are a result of
a. Nondisjunction
b. Crossing over
c. accidents
d. all of the above
Answer:
Explanation: D
what color does iodine turn in the presence of starch?
Write a clear, thoughtful 2 paragraph argument that explains HOW 3 body systems work together to promote life functions.
0
No Effort
10
Student correctly identifies at least 3 body systems from the seven systems taught in class.
Student applies knowledge of each body system giving their function and major organ/s.
Student clearly demonstrates through explanations of how each body system works with each other.
Student uses learned writing strategies and writes in complete sentences
Minimum of 8 complete sentences.
Jaime went to the doctor because several strange things have been happening to him. He first noticed that sometimes when he tries to touch something he is unable to feel it. Then he noticed that when he tried to walk his legs wouldn’t always move the way he wanted them to. Lastly, he has been unable to control when he urinates.
HUMAN BODY SYSTEMS QUICK GUIDE
Circulatory : Transport gasses(oxygen,CO2) and nutrients throughout body;
Digestive: Breakdown of nutrients (food);
Nervous: Process & respond to stimuli;
Respiratory: Gas exchange;
Muscular: Movement;
Excretory: Eliminates waste to maintain homeostasis;
Immune: Defense against disease
Answer:
water is H2o have a good day
Explanation:
Most of Earth's species of flowering plants depend on insects to pollinate their flowers.
True
Or
False
Answer:
True :)
Explanation:
Most species of flowering plants rely on vectors to move pollen and these vectors include insects, butterflies, birds, water and wind.
Fermentation occurs in the
presence of ATP
absence of ATP
presence of oxygen
absence of oxygen
Answer:
Fermentation occurs in the absence of oxygen.
Kinetic energy depends on
Question 2 options:
Density and volume
Mass and speed
Position and height
Heat and pressure
Hurry please i am timed and i will give brainliest answer
Answer:
Kinetic energy depends upon Mass and speed.
Explanation:
HOPE IT'S CORRECT
Answer:
Kinetic energy is the stored energy in a moving object
Explanation:
if a truck has low kg means it has less kinetic energy thus making the answer C
FIRST ONE TO ANSWER GETS BRAINLEST ANSWER How does the skull's structure help it perform its function?
a. The skull has marrow in it which produces blood cells
b. The skull has sharp teeth which are used in eating
c. The skull is hard which protects the brain from being injured
d. The skull is flexible which allows the brain to grow
Answer:
c. The skull is hard which protects the brain from being injured
Explanation:
Answer:
The one that makes sense is C.) "The skull is hard which protects the brain from being injured." here's why:
Explanation:
The skull performs vital functions. Mainly, it supports and protects the head's soft tissues. The baby's skull is soft but as the bones developed, the bones of the skull form a tough, fibrous membrane and slowly fuse to form a single skull. The mandible is the only bone that separates from other parts of the skull. The skull or known as the cranium in the medical world is a bone structure of the head. It supports and protects the face and the brain. The adult skull has a total of 22 individual bones. They don’t move and united into a single unit. The skull performs vital functions. Mainly, it supports and protects the head’s soft tissues. The baby's skull is soft but as the bones developed, the bones of the skull form a tough, fibrous membrane and slowly fuse to form a single skull. The mandible is the only bone that separates from other parts of the skull. So, as our cranium grow it gets tough enough to protect the brain from injury!
hopefully I helped! have a great day!
What is the constituent of red blood cell, white blood cell, platelets, plasma?
Please answer me I want your answer
Answer:
Plasma is the main component of blood and consists mostly of water, with proteins, ions, nutrients, and wastes mixed in. Red blood cells are responsible for carrying oxygen and carbon dioxide. Platelets are responsible for blood clotting. White blood cells are part of the immune system and function in immune response.
Explanation:
find the answer here
Spindle fibers are composed of which type of protein?
Answer:
Hey there. The answer should be Tubulin.
Explanation:
Spindle fibres are formed from microtubules which are made up of a protein called Tubulin.
Cetaceans (whales, dolphins, and porpoises) are all Mammals. Whales usually are larger and slower in the water. Porpoises normally do not have a pronounced beak as a dolphin would. Dolphins have a curved dorsal fin. Dolphins and Porpoises are extremely intelligent. They are warm-blooded. All dolphins are whales, but not all whales are dolphins. Different animals live in different areas. Killer whales are adapted to colder areas, and they stay in the colder water. Bottlenose dolphins are best suited for warmer areas such as the Atlantic Ocean, so they will have less body fat or flubber because they live in a warmer climate. The Killer Whale will need more body fat because of the colder temperatures. They have smooth bodies to help them swim. They have tiny hairs, but as they age, the hair disappears. They can stay underwater longer based on their breathing and extract oxygen from water; they make super high pitch noises that Bounce off objects in the water Back towards the Dolphins to help determine the location; this is called Echolocation.
How does this diversity and adaptations differ from the diversity encountered on land?
Answer:
no worries no any answer
Explanation:
sorry I don't know about that
I am in class 8 only sorry
3. The abilities to dissolve in water and to conduct electricity are examples of
A. natural properties.
B. chemical properties.
C. natural laws of matter.
D. physical properties.
Answer:
D
Explanation:
dna is synthesized through a process known as _____.
Dna is synthesized through a process known as DNA Replication.
DNA is synthesized through a process known as - DNA replication or semiconservative replication.
DNA replicationsynthesis of new DNA. a double-stranded DNA molecule is copied to produce two identical DNA molecules.is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information or DNA.the replication takes place in the following steps:step 1in the nucleus of the cell the DNA double helix separates after that an enzyme named DNA helicase attaches to the DNA molecule and moves along the molecule and 'unzips' the two strands of DNA
Step 2since nucleotides are floating in the nucleus that means there are A, G, T and C's floating around also. these are bases that form hydrogen bonds with the bases of DNA strands.
Step 3
the enzyme they call DNA polymerase catalyzes the formation of the sugar-phosphate units at the sides of the helix and connects one base pair to the next one
Thus, DNA is synthesized through a process known as - DNA replication or semiconservative replication.
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A fatal central nervous system disorder caused by more than 35 repetitions of a particular set of three base pairs is:
Answer:
Huntington's Disease
Explanation:
Which term refers to the microscopic physical gap between the presynaptic and postsynaptic neurons at a chemical synapse
The gap between the presynaptic and postsynaptic neurons at a chemical synapse is the Synaptic cleft.
The neurons are the smallest units of the nervous system. They are equally referred to as the nerve cells.
The presynaptic neurons that receives the fired action potential through its axon terminals.
This leads to release of neurotransmitters found in the synaptic vesicles of the presynaptic neurons.
These neurotransmitter are released into the physical gap between the presynaptic and postsynaptic neurons called the Synaptic cleft.
The neurotransmitters are then received by the postsynaptic neurons.
Therefore, the gap between the presynaptic and postsynaptic neurons at a chemical synapse is the Synaptic cleft.
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The erythrocytes main function is which of the following?
Kill invaders/pathogens
Keep the oxygen supply flowing
Close open wounds by clotting
Answer:
The 2nd option. "Keep the oxygen supply flowing"
Erythrocytes carry oxygen to tissues which turns into energy. It also carry carbon dioxide away from the cells.
Plant and animal cells have a lot in common. Compare and contrast the two cells. Select the features that you find in BOTH types of cells. Question 17 options: membrane, nucleus, cytoplasm, membrane, chloroplasts, nucleus cell wall, cell membrane, nucleus cell membrane and cell wall, chloroplasts.
Answer and explanation:
Animal cells do not have cell walls or chloroplasts but both plant and animal cells contains nucleus and cell membrane.
Match each part of the respiratory system with the correct label.
Answer:
1 Nose
2 Mouth
3 Pharynx
4 Larynx
5 Trachea
6 Bronchi
7 Bronchioles
8 Alveoli
Explanation: are correct for your numbers in edg
Following are the parts of Respiratory system:
1.Nose
2. Mouth
3. Pharynx
4. Larynx
5. Trachea
6. Bronchi
7. Bronchioles
8. Alveoli
What is Respiratory System?The respiratory system is the network of organs and tissues which helps with breathing that includes the airways, lungs, and blood vessels. The muscles that power the lungs are also part of the respiratory system. They work together to move oxygen throughout the body and to clean up waste gases like carbon dioxide.
Respiratory system consists of following parts like
Nose--> Mouth--> Pharynx --> Larynx --> Trachea --> Bronchi --> Bronchioles --> Alveoli
The respiratory system has many functions others than inhaling (breathe in) and exhaling (breathe out), it:
It allows talking and smelling.It warms the air to match the body temperature and moisturizes it to the moisture level the body needs.It transports oxygen to the cells in your body.It removes waste gases, including carbon dioxide, from the body when you exhale.It protects the airways from harmful substances and irritantsThus, following are the parts of Respiratory system:
1.Nose
2. Mouth
3. Pharynx
4. Larynx
5. Trachea
6. Bronchi
7. Bronchioles
8. Alveoli
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To maintain homeostasis, ADH functions via a ______ feedback mechanism that responds to blood ______ concentration.
Answer:
negative, salt
Explanation:
ADH functions via a negative feedback mechanism that responds to blood salt concentration to maintain homeostasis.
What is homeostasis?In order to maintain a constant state between internal conditions and the external environment, a cell's response to its environment is known as homeostasis.
Because of their complexity and uniqueness to living things, the coordinated physiological responses that keep the majority of the body's dynamic equilibrium in place have been given the name "homeostasis."
Ex: When it's cold outside, we start to shiver and use energy to stabilize our body temperature. This is where the cell regulates cell temperature, fluid balance, sugar balance, etc. through it.
Therefore, there is negative feedback that responds to blood salt concentration.
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Draw a line to connect the following terms to their definitions.
Answer:
If I am not wrong 1 and A
2 and C
3 and B
Answer:
I do not know this question I
Explanation:
Hahahh and I will be unable to attend the meeting on the 27th July 4th and I will not be able to attend the meeting on the 27th of this month so that I can make the necessary changes to the meeting on the 27th of this month and will have to wait until I get back to the office tomorrow and
In mitosis, the nuclear envelope must first break down so the duplicated DNA can segregate into separate daughter cells. Which phase does this happen