Answer:
hello your question lacks the required options
Group of answer choices
It allows the animal to consume a second meal while the first is being digested.
It permits development of specialized enzymes and concentration of digestive juices in different regions.
It permits more time for enzymatic action.
Additional physical cutting and grinding of the food bolus is made possible.
All of the above are advantages
answer : All of the above are advantages
Explanation:
An animal with a gastrovascular cavity has some advantages over the animal with a tube-type digestive system . a gastrovascular cavity allows for the digestion and transport of nutrients across the body and is found in phyla and Platyhelminthes
The major advantages the gastrovascular cavity has includes :
It allows the animal to consume a second meal while the first is being digested.
It permits development of specialized enzymes and concentration of digestive juices in different regions.
It permits more time for enzymatic action.
Additional physical cutting and grinding of the food bolus is made possible.
If the scientific name of the tiger is Panthera tigris then: to what genus do tigers belong?
Extend your thinking: Biological evolution is the process by which populations of organisms change over time. How could natural selection lead to evolution?
Explanation:
Natural selection is a process where organisms that are better adapted to an environment will survive and reproduce. This means that the advantageous alleles of this variant organism are passed on to offspring. Over many generations, the process of natural selection leads to evolution occurring.
Environments change over time, and natural selection acts on the genetic diversity in species. After many generations in this new environment, the current population may not look like their ancestors because natural selection has changed them – they have evolved – to survive in the new environment
Natural selection is the process through which populations of living organisms adapt and change. Natural selection can lead to speciation, where one species gives rise to a new and distinctly different species. It is one of the processes that drives evolution and helps to explain the diversity of life on Earth
Natural selection could lead to evolution when mutated genes are passed on from parents to offsprings over time. Details about evolution can be found below.
What is natural selection?Natural selection is a biological process by which living organisms become better adapted and suited for survival and reproduction.
Natural selection occurs in living organisms and over time leads to the evolutionary process.
Therefore, it can be said that natural selection could lead to evolution when mutated genes are passed on from parents to offsprings over time.
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What is the importance of having bacteria that is helpful
Answer:
The bacteria in our bodies help degrade the food we eat, help make nutrients available to us and neutralize toxins, to name a few examples[8]; [9]; [10]. Also, the microbiota play an essential role in the defense against infections by protecting the colonized surfaces from invading pathogens.
Explanation:
The bacteria in our bodies help degrade the food we eat, help make nutrients available to us and neutralize toxins, to name a few examples[8]; [9]; [10]. Also, the microbiota play an essential role in the defense against infections by protecting the colonized surfaces from invading pathogens.
35 points please help science biology
Euglena are unicellular organisms classified into the Kingdom Protista, and the Phylum Euglenophyte. All euglena have chloroplasts and can make their own food by photosynthesis. They are not completely autotrophic though, euglena can also absorb food from their environment; euglena usually live in quiet ponds or puddles.
Euglena move by a flagellum (plural ‚ flagella), which is a long whip-like structure that acts like a little motor. The flagellum is located on the anterior (front) end, and twirls in such a way as to pull the cell through the water. It is attached at an inward pocket called the reservoir. Color the reservoir grey and the flagellum black.
The Euglena is unique in that it is both heterotrophic (must consume food) and autotrophic (can make its own food). Chloroplasts within the euglena trap sunlight that is used for photosynthesis, and can be seen as several rod like structures throughout the cell. Color the chloroplasts green. Euglena also have an eyespot at the anterior end that detects light, it can be seen near the reservoir. This helps the euglena find bright areas to gather sunlight to make their food. Color the eyespot red.Euglena can also gain nutrients by absorbing them across their cell membrane, hence they become heterotrophic when light is not available, and they cannot photosynthesize.
The euglena has a stiff pellicle outside the cell membrane that helps it keep its shape, though the pellicle is somewhat flexible and some euglena can be observed scrunching up and moving in an inchworm type fashion. Color the pellicle blue.
In the center of the cell is the nucleus, which contains the cell's DNA and controls the cell's activities. The nucleolus can be seen within the nucleus. Color the nucleus purple, and the nucleolus pink.
The interior of the cell contains a jelly-like fluid substance called cytoplasm. Color the cytoplasm light yellow. Toward the posterior of the cell is a star-like structure: the contractile vacuole. This organelle helps the cell remove excess water, and without it the euglena could take in some much water due to osmosis that the cell would explode. Color the contractile vacuole orange.
At sea level a kilogram weighs approximately?
Answer:
2.2 pounds.
Explanation:
a kilogram is 2.2lbs, and at sea level weighs 2.2 pounds, as sea level is the same as 0ft.
Answer:
2 pounds
Explanation:
1 kilogram = 2.20462 pounds = 2 pounds
so, 1 kilogram weight is approximately equal to 2 pounds.
Plants store water and food in the:
cortex
xylem
phloem
epidermis
Answer:
xylem
Explanation: have fun
Answer:
xylem
Explanation:
5. Which of the following is the name for all the materials carried by a stream other than the water itself?
a, discharge
b, flow
c, gradient
d, stream load
Which word is a synonym for Heterotroph?
Group of answer choices
A)Consumer
B)Monster
C)Bacteria
D)Producer
Which is required for the light-independent reactions in photosynthesis to occur?
wo
Answer: require light energy and water, and the L-IND reactions require ATP, NADPH and CO2.
Explanation:
Which of the following describes the
cytoskeleton?
A. a web of proteins that gives shape and
support to the cell
B. a membrane-bound organelle that contains
genetic material
C. the outer covering of a cell that separates it
from the environment
D. the structure that contains the information
about how to make a cell's proteins
Answer:
either b or c
Explanation:
its been a while since I took biology but I'm pretty sure its in between those two answers
Describe the role of ATP and enzymes in the underlying molecular processes, including what happens to the free energy of some of the molecules involved.
Answer:
Role of ATP and enzymes are very important.
Explanation:
The role of ATP and enzymes are very important in the process of digestion because enzyme speedup the chemical reaction such as digestion without using in it and when the break down of micromolecules such as glucose occurs, energy is produces in the form of adenine tri phosphate (ATP) that is used in different activities whereas the free energy of some molecule is utilized in doing some useful work.
GIVING BRANLIEST HELP ME PLEASE!!!
Answer:
B I think, Good luck
Explanation:
Answer:
A: The ability to maintain homeostasis
Explanation:
Hope this helps:)
During which phase of mitosis do the chromosomes head
to opposite ends of the cell?
A.anaphase
interphase
B.metaphase
C.prophase
D.telophase
Answer:
CA __________________ is a place holder or object where you can store a value or piece of data named by you
Sound is created by our vocal cord due to
(a) Air in lungs
(b) Vibration in lungs
(c) Vibration in throat
(d) none of these
Answer:
c
Explanation:
for me Vibration in throat
Water has a variety of unique properties, including a low melting point, ability to dissolve other substances, and strong adhesion and cohesion. Which statement is MOST useful for explaining the unique properties of water? A. Water molecules are nonpolar, so a very minimal electrical force attracts them to one another. B. Water molecules may sometimes gain or lose an oxygen atom to become ions, which are held together by ionic bonds. C. Water molecules are held together by hydrogen bonds, which are attractive forces stronger than ionic bonds. D. Water molecules are held together by hydrogen bonds, which are attractive forces weaker than covalent bonds.
Answer:
D. Water molecules are held together by hydrogen bonds, which are attractive forces weaker than covalent bonds
Explanation:
Water is a chemical molecule with unique properties such as a low melting point, ability to dissolve other substances, and strong adhesion and cohesion, as stated in this question. This unique properties can be attributed to the HYDROGEN BONDING that holds the molecules of water together.
However, the hydrogen bonding of water molecules is an attractive force that is quite WEAKER than ionic or covalent bonds but it holds water molecules tightly to one another.
he basic functional unit of the nervous system is the neuron. What is the major function of this cell type
Answer:
They provide structure and support, facilitate growth through mitosis, allow passive and active transport, produce energy, create metabolic reactions and aid in reproduction.
why do our digestive systems produce separate enzymes to digest proteins, fats, and carbohydrates?
Answer:
The digestive system produces different types of enzymes in order to convert proteins, fats and carbohydrates into smaller molecules and facilitate their absorption.
Explanation:
Once food is ingested, it must go through a process of digestion, which involves the conversion of food into smaller molecules, in order to facilitate its absorption at the intestinal level.
There are different enzymes, produced in the digestive system, for this purpose:
Proteases degrade meat proteins to convert them into amino acids. Lipases convert fats into fatty acids. Amylases convert sugars and carbohydrates into glucose.The main objective is to obtain the fundamental components of each food to be assimilated by the organism, via intestinal absorption.
Oxygenic photosynthesis at first caused a mass extinction, but also allowed complex life on Earth to develop. In what ways does free oxygen allow complex life
Answer:
Oxygen would be played a key role in evolution of complex organisms because this molecule is required to efficiently produce chemical energy during cellular respiration
Explanation:
Chloroplasts originated from endosymbiotic cyanobacteria 1,500 million years (mya) ago. Like chloroplasts, mitochondria originated from cyanobacteria, and also approximately at the same time. Mitochondria are organelles capable of generating energy by burning oxygen during cellular respiration (aerobic respiration). During this period (1,500 mya), complex cells became able to efficiently produce energy by using oxygen in aerobic reactions, which can be attributed to the emergence of mitochondria. Interestingly, it has been shown that during the next 500 mya, different groups of organisms composed of more than 50 different cell types evolved (including algae, fungi and early animals). Therefore, it is possible to hypothesize oxygen would be a critical molecule without which complex organisms couldn't evolve.
Oxygen played a vital role in evolution of complex life because the transfer of electrons from organic molecules to oxygen released a large amount of energy, thus resulting in efficient production of chemical energy during cellular respiration.
For life to exist, energy must be available and abundantly so, in order to carry out the vast array of activities that makes life possible.
At first, only simple life forms which did not depend on oxygen existed. This life forms were collectively known as anaerobes.
Because the electron acceptors they used then were not very efficient in accepting electrons during the oxidation of organic compounds to produce energy, life remained in simple forms as microorganisms.
However, as the atmosphere became progressively richer in oxygen, some anaerobic microorganisms evolved who were able to obtain energy by passing electrons to oxygen.
Endosymbiotic associations which eventually became permanent between aerobic and anaerobic microorganisms gave rise to structures such as the mitochondria, plastids and chloroplasts.
This ability to effectively use oxygen as electron acceptors to produce energy as in mitochondria as well as produce oxygen as in chloroplasts led to the appearance of more complex life forms who were able to carry out more complex life activities due to efficient production and utilization of energy. These life forms include the algae, fungi and early multicellular animals.
Therefore, it can be concluded that oxygen played a vital role in evolution of complex life because the transfer of electrons from organic molecules to oxygen released a large amount of energy, thus resulting in efficient production of chemical energy during cellular respiration.
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A joint can only perform these movements: flexion/extension and abduction/adduction. It is therefore a:_______ joint.
a. biaxial
b. multiaxial
c. uniaxial
Answer:
A. Biaxial Joint
Explanation:
Flexion refers to a motion that reduces the angle between two body parts. An example is the knee.
Extension refers to a movement that increases the angle between two body parts. An example is also the knee.
Abduction refers to movement away from the midline of the body.
Adduction refers to movement toward the midline of the body.
A Biaxial joint is a joint that allows for movement within two planes.
The wrist is a good example of a biaxial joint
Why must an owl
swallow its prey whole?
Answer:
Owls swallow their prey whole or in large pieces but do not produce enough stomach acid to digest bones, fur, feathers and scales. Because undigested body parts could injure the owl’s intestine, the animal needs another way to deal with that part of its diet. That’s where owl pellets come in. An owl has two stomachs. Most birds can’t chew their food, and owls are no exception. Owls usually swallow their prey whole; they differ from other species of birds because they don't have a crop, the baglike organ used to store food after it has been swallowed so that it can be digested later
Explanation:
Hope it Helps :)
Answer:
Owls swallow their prey whole or in large pieces but do not produce enough stomach acid to digest bones, fur, feathers and scales. Because undigested body parts could injure the owl's intestine, the animal needs another way to deal with that part of its diet. ... The bones, fur, feathers and scales remain in the gizzard.
Explanation:I’m big brain
Children’s books, mysteries, fictions, novels, and magazines are all examples of writing by authors whose purpose is to?
Answer:
To entertain and develop inspiration and curiosity in people
Explanation:
When testing tonicity of red blood cells, if the solution became opaque after adding blood cells, you could assume
Answer:
The solution was hypertonic and that the cells had burst.
Explanation:
When testing tonicity of red blood cells, if the solution became transparent after adding blood cells, you could assume the solution was hypotonic and the cells had burst.
Tonicity of the red blood cells is the degree or measure of the red blood cells ability to change the volume of a cell by alternating water amount.From the above we can therefore say that the answer When testing tonicity of red blood cells, if the solution became transparent after adding blood cells, you could assume the solution was hypotonic and the cells had burst is correct
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The process of making bread is an example of:
1) Cellular respiration
2) Alcoholic Fermentation
3) Aerobic Fermentation
4) Lactic Acid Fermentation
why do neutral elements form ions ?
Answer:
because they can be atoms
Explanation:
and they can also remove one or more electrons at a negatively charged.
What 3 molecules, bonded
together, create a single link in the DNA chain
Answer:
nucleotides, phosphate, sugar (for a better explanation go to google and that should help you! I hope this helps you)
An animal cell is placed in an aqueous solution. The cell has a solute concentration of 6%, while the aqueous solution has a solute concentration of 18%. What will happen to the cell? *
1.The cell will swell with solutes
2.The cell will swell with water
3.The cell will shrivel from losing solutes
4.The cell will shrivel from losing water
Answer:
It is 2.
Hope this answer really helps
:)
Explanation:
Enzymes affect the reactions in living cells by changing the
(A Products of the reason
B( Speed of the reaction
C( temperature of the reaction
D(pH of the reaction
How are mass extinctions different from normal extinctions in the fossil record?
Answer:
normal extinction is the same as background extinction, where only one specific species goes extinct. Mass extinction is more wide spread where most of the living plants and animals goes extinct, at least half. In relation to fossil record, that refers to the amount of time a living organism turns to fossils/minerals.
Explain what would happen if the body's kidneys failed?
A. The body will not be able to produce enough blood.
B. The body will not be able get rid of waste products made by cells.
C. The body will not get sufficient amount of clean water.
D. The body will not be able to dispose of carbon dioxide in the blood.
Answer:
b:) the body will not be able to get rid of waste products made by cells
Explanation:
Weigh is a measure of pull of gravity on an object true or false
Answer:
The answer is "TRUE!"
Explanation:
Weight is a source of forceful motion that is generated by the pull of gravity. Gravity that is originated in the center of the earth, attracts smaller objects towards that center, in which the measurement of how strong that force really is, is weight.
Answer:
true
Explanation: weight measures the pull, describing gravity
