A Cnidarian can have one of two basic body types, polypoid or medusoid. The polypoid is the configuration of corals and anemones, with the tentacles and mouth generally facing up, and the other side affixed to a substrate or connected to a colony of other creatures of the same species.
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Cnidarians, such as jellyfish and corals, have two body forms: polyp and medusa. Polyps are typically immobile with an upward-facing mouth and tentacles, while medusa are able to move with a bell-like body and downward-facing mouth and tentacles. Some cnidarians can display both body forms in their life cycle.
Explanation:Cnidarians, including jellyfish and corals, exhibit two general body forms known as polyp and medusa. The polyp form, akin to a stalk, is sessile (immobile) with tentacles and a single opening facing upwards. Examples include freshwater species of the genus Hydra and sea anemones. The medusa form is motile (able to move) and bell-shaped, with the mouth and tentacles hanging down from the body. Jellyfish are perhaps the most known representatives of the medusa form.
Additionally, some cnidarians are dimorphic, exhibiting both body forms during their life cycle. In these species, the polyp often serves as the asexual phase, with the medusa functioning as the sexual stage that produces gametes. However, species belonging to the class Anthozoa, which include sea anemones, sea pens, and corals, only exhibit the sessile polyp body form throughout their life cycle.
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The hypothalamus causes the anterior pituitary to secrete hormones by
A--nervous stimulation.
B--releasing hormones.
C--negative feedback.
D--releasing adrenalin.
D. Releasing hormones
Plants use the sugars they produce during photosynthesis to create which molecule
Answer:
sugar molecule
Explanation:
During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose.
Use the drop-down menus to match each description to the geologic era it describes.
The first birds and flowering plants appeared during this era. This is also when the most well-known dinosaurs lived.
1) Mesozoic
2) Cenozoic
3) Paleozoic
2020 on edge
Scientists agree that the term biodiversity describes the number and kinds of species in a location on Earth. Scientists have also identified alternate measures of biodiversity, some of which are important for planning how to preserve biodiversity including genetic biodiversity as well as ecosystem biodiversity. Because all life is interconnected and because the biosphere exerts such an influence on our man's presence on Earth, it is so very important that biodiversity be preserved.
Why is biodiversity important to man? Check all the statements that are true.
A) Maintaining genetic biodiversity of wild species of our crops that are related to domesticated species ensures our continued food supply.
B) Most aesthetically pleasing landscapes are poor in diversity of habitats and species.
C)Antibiotics are derived from bacteria and fungi.
D)Many plants produce secondary plant compounds that are used as medicines.
E)The ability to create new crop varieties relies on the unique properties of just one particular plant rather than a genetic diversity.
F)Undisturbed wild areas are important for all human recreation activities.
ANSWER :A C D F
I am not 100% sure but i’m pretty sure the answer is A.
Answer:
Its A, C, D, and F
Explanation:
I just took it on USATestPrep
Fill in the blank _____ Is Genetic information in the cells of all living things
Answer:
The answer is DNA
Explanation:
Answer:
DNA
Explanation:
Help Please!!!!!! I will appreciate it. SCIENCE
C. In order for something to turn into a fossil fuel it has to die and be buried. After it’s buried it gets compacted and over the years the pressure builds up so much that it changes forms. Hope this helped you :)
3. Which reproductive gametes are powered by many ATP and flagella?
A. Blastula
B. Eggs
C. Sperm
D. Ovum
Answer:
C
Explanation:
The flagella of the sperm are used to help it swim through the vagina and uterus so it reaches the fallopian tubes from where it will meet the egg and fertilize. The ATPs are found in the many mitochondria organelles in the sperm are used to generate the required energy to swim and breach the walls of the egg during fertilization.
Answer:C sperm
Explanation:
what the solution for ocean gyre?
If we can clean the ocean by removing the larger plastics currently polluting it we can help prevent that plastic from breaking down into micro plastics. Micro plastics are small plastic pieces that were broken down from larger plastics. Also we can recycle and prevent land paves.
Which level of a food chain breaks down dead organisms at every other level?
It should be the trophic level..
What parts of the cardiovascular system are involved in the pumping and circulating of blood?
artery
vein
heart
alveoli
Answer:
Heart and artery
Explanation:
It consists of the Heart and the blood vessels running through the entire body.
Why are the four inner planets in our solar system dense and rocky while the outer planets are gaseous
Final answer:
The inner planets are dense and rocky due to the high temperatures near the Sun which caused lighter materials to evaporate, leaving behind rocks and metals. The outer planets are large and gaseous because they formed in cooler regions where it was possible for gases and ices to condense around a dense core. The solar system also contains asteroids, comets, and the asteroid and Kuiper belts, showing a transition in composition.
Explanation:
Why Inner Planets are Dense and Rocky While Outer Planets are Gaseous
Our solar system is divided into two distinct types of planets: the inner planets (Mercury, Venus, Earth, and Mars) which are dense and rocky, and the outer planets (Jupiter, Saturn, Uranus, and Neptune) which are large and composed mostly of gases. This division is largely due to the heat of the Sun and the distance of the planets from the Sun during the formation of the solar system.
Formation of Inner and Outer Planets
The inner planets formed in a part of the solar system where temperatures were high due to the proximity to the Sun. This heat caused lighter materials, such as water, carbon dioxide, methane, and ammonia, to remain in gas phase or evaporate if they were present on the forming planets, leaving behind dense, rocky materials. As a result, the inner planets are composed primarily of rocks and metals which could withstand the high temperatures.
In contrast, the outer planets formed in cooler regions of the solar system, where it was cold enough for gases and ices to condense. These planets started with a dense core similar to the inner planets but were able to accumulate large amounts of light gases like hydrogen and helium from the solar nebula. This accumulation of gases around their cores is why the outer planets are much larger and have a gaseous composition.
Other Objects in Our Solar System
Beyond the planets, our solar system is also home to asteroids, comets, the asteroid belt located between Mars and Jupiter, and the Kuiper Belt and Oort Cloud which contain many icy bodies. These objects represent a transition in composition from the rocky materials of the inner solar system to the icy constituents of the outer solar system.
The main function of the human digestive system is to
A) rid the body of cellular waste materials
B) process organic molecules so they can enter cells
C) break down glucose and convert it to ATP
D) change amino acids into proteins and carbohydrates.
Answer:
The correct answer is A
Explanation:
The digestive system takes cellular waste and basically just flushes it out. I took this test as well and got it correct. If its correct for u pls mark brainliest answer. I need it for a challenge. Good luck with your quiz!(:
The primary function of the human digestive system is to break down food into smaller molecules so they can be absorbed into the bloodstream and supplied to the body's cells. Food undergoes both mechanical and chemical digestion in the stomach and intestines, leading to absorption of nutrients.
Explanation:The main function of the human digestive system is B) process organic molecules so they can enter cells. The digestive system begins this process in the mouth where food is broken down mechanically by teeth and chemically by salivary enzymes.
It continues in the stomach where gastric juices break down proteins. After that, in the small intestine, enzymes from the pancreas further break down food, allowing nutrient molecules including carbohydrates, proteins, and fats to be absorbed into the bloodstream.
The digestive system finishes this process in the large intestine, where water and electrolytes are reabsorbed back into the system, essentially leaving waste material that is then excreted via the rectum and anus. Therefore, the principal job of the digestive system is to break down food into tiny molecules and deliver them into the cells to be used as fuel for energy, growth, and cell repair.
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Which of these is an environmental effect of building dams?
(A) Decreased Water Tempature Upstream
(B) Soil Erosion Upstream
(C) Increased Land Fertility Downstream
(D) Weed (Not Marijuana plant Bush Weed) Growth Downstream
The question is B soil erosion upstream
Answer:
The answer is weed growth downstream
Explanation:
I did the test
Which describes the relationship between a genotype, a phenotype, and an organism’s experiences?
Answer:
A phenotype is the physical appearance of a trait in an organism, which may be influenced by the organism's experiences. ... A phenotype is an organism's allele combination. A genotype is the physical appearance of a trait in an organism, which may be influenced by the organism's experiences.
Explanation:
Phenotype is like the appearance like color genotype is like the dna off is what’s it’s made of
NEED HELP ASAP PLZ!!
In addition to surface tension what's responsible for driving ocean waves?
A. The coriolis effect
B.Thermohaline Circulation
C. Centrifugal force
D. Drag from wind
Answer:The weather can create a wave. Such as the wind. Aslo the moon plays a big part in creating tides.
Explanation:
Answer: Option 'D' is correct.
Explanation:
In addition to surface tension, drag from wind is responsible for driving ocean waves.
The significant feature of waves is wind. And speed of wind determine the frequency of waves in oceans.
So, drag from wind helps in driving the ocean waves.
Hence, option 'D' is correct.
7. Population growth is limited by density-dependent factors such as
A.)volcanoes and earthquakes
B.)droughts and floods
C.)predation and disease
D.)biotic and abiotic factos
Answer: D.)Biotic and Abiotic factors
Explanation: The living things in an ecosystem are called biotic factors. Living things include plants, animals, bacteria, fungi and more. The non living parts of an ecosystem are called abiotic factors. In an ecosystem some abiotic factors are sunlight, temperature atmospheric gases water and soil. These would not limit pop growth as much as predation and disease.
What is an adaptation?
A. A trait that makes an organism more likely to survive.
B. A mutation that either helps or hurts an organism.
C. A way for an ecosystem to recover after a disturbance.
D. A trick that an organism learns that helps it survive.
Answer: A
Explanation: an adaption is when an organism evolves to adjust and survive in it's environment
An adaptation is a trait that helps an organism survive by making it better suited to its environment.
Explanation:An adaptation is a trait that makes an organism more likely to survive. It is a characteristic or behavior that helps an organism better suited to its environment and increases its chances of survival and reproduction.
For example, the long neck of a giraffe is an adaptation that helps it reach leaves on tall trees for food. The camouflage of a chameleon is another adaptation that allows it to blend in with its surroundings and avoid predators.
Therefore, the correct answer is A. A trait that makes an organism more likely to survive.
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what is the code for building amino acids
Answer:
12345
Explanation:
12345
The image below was generated by the National Oceanic and Atmospheric Administration (NOAA) to monitor weather systems that could evolve into tropical cyclones. Satellite images and weather data have been entered into a computer model, which has identified three systems that might become tropical cyclones. Each system is associated with a different likelihood of turning into a tropical cyclone.
The image suggests that there is _______ in the computer models used to make weather predictions.
A. no error
B. some uncertainty
C. zero accuracy
D. perfect accuracy
(Edit: It's B)
Answer:yo no se mucho de esto pero yo creo que es la A por que el clima cambia siempre por ejemplo un dia es soliado y al dia siguiente es nublado o algo asi y es cierto el clima cambia constantemente como las personas
Explanation:
Answer:
ITS B
Explanation:
Study the amino acid sequences of the same protein taken from four different species of
plants. Which pair of plants is most closely related?
Species 1: A-P-A-C-W-
Species 2: G-P-G-S-F-
Species 3: A-P-A-C-F-
Species: -N-K-M-H-H-
A.Species 2 and 4
B.Species 1 and 3
C.Species 3 and 4
D.Species 1 and 2
Answer:
D species 1and 2 is the following answer of the following answers
Answer:
B) Species 1 and 3
Explanation:
Species 1 and 3 have four proteins in common, while the others have less.
What's the requirement of every single natural process on Earth?
A. Energy source
B. Oil
C. Sunlight
D. Trees
Answer:
energy source
Explanation:
The study of a living being is called biology. There are two types of living species and these are plants and animals.
The correct answer is option C that is sunlight.
What is natural?The thing which is made up naturally and we can not be made up human process is called natural.Every Cell requires energy for working and the unlimited source of energy is the sun.
Hence, every cell needs energy.
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does the distance from the sun affect seasons? Why or why not?
Seasons are not caused by the Earth's distance from the Sun, but by the tilt of the Earth's axis. This 23.5° tilt results in varying angles of sunlight over the course of a year, causing different hemispheres to experience summer or winter when they are tilted toward or away from the Sun, respectively.
The idea that the distance from the Sun affects seasons is a common misconception. In reality, it is not the distance that causes the seasons but rather the tilt of the Earth's axis. While the Earth's orbit around the Sun is slightly elliptical, meaning the distance does vary, this variation is about 3% which is too small to significantly affect the Sun's heating of the Earth.
The true reason behind the changing seasons is the 23.5° tilt of the Earth's axis. This tilt ensures that during different times of the year, either the Northern or the Southern Hemisphere will be tilted toward the Sun, resulting in more direct sunlight and, consequently, warmer temperatures. Conversely, when a hemisphere is tilted away from the Sun, it experiences less direct sunlight and thus cooler temperatures.
For example, during the month of June, the Northern Hemisphere is tilted toward the Sun and enjoys summer, while the Southern Hemisphere, being tilted away, experiences winter. Conversely, in December, the Southern Hemisphere leans into the Sun and witnesses summer, whereas the Northern Hemisphere leans away and undergoes winter.
Which of the following groups contain organisms that have tissues and organ systems?
A.
prokaryotes
B.
eukaryotes
C.
bacteria
D.
protists
Answer: c bacteria
Explanation:
hey there. i saw someone said C.bacteria, they were wrong. the correct answer is B. eukaryotes :)
Hazardous waste is produced only by industry, such as factories or office parks. True False
Answer:
The statement is False.
Explanation:
Hazardous waste is the waste which effect environment by destroying is equilibrium and impose dangerous effects on public health. Hazardous waste could be flammable, Corrosive, explosive or toxic. This type of waste is not only produces by factories and office but our house hold items are also producing Hazardous waste products. For example, pesticides, paints, human feces, battries and CFC produced by Refrigerators and Air conditioners. There are several home appliances which are creating problems to environment due to lack of safe disposal. Additionally, Our transport vehicles are also emitting toxic gasses to the environment.
Answer:
false
Explanation:
it is also produced by households
(((PLEASE HELP QUICK))) How is energy related to the change of state represented by the model?
A) Atoms gain energy as a solid changes to a liquid.
B) Atoms gain energy as a solid changes to a gas.
C) Atoms lose energy as a solid changes to a liquid.
D) Atoms lose energy as a solid changes to a gas.
I believe the answer is c
Answer: A) Atoms gain energy as a solid changes to a liquid.
Explanation: Atoms in liquid possess more energy than the atoms in solid. The change of state from a solid state to a liquid state is called melting. Energy is applied to the molecules in solid state the molecules begin to move quicker and begins to break away from the other molecules. The heat absorbed leads to the molecules to moving farther apart from others thereby overcoming the intermolecular forces of attraction between them.
The solid state gains energy in form of heat as solids converts to liquid.
anything that is built or created in an organized manner
Answer:
structure
Explanation:
Anything that is built or created in an organized way refers to the field of Engineering. It involves using scientific and mathematical principles to design, build, and maintain various structures, machines, systems, in a systematic and organized manner.
Explanation:When we talk about anything that is built or created in an organized manner, we are generally referring to the field of Engineering. Engineering is a discipline involving the application of scientific and mathematical principles to design, build, and maintain structures, machines, systems, and processes in a systematic, deliberate, and organized manner. For instance, building a bridge, designing a computer software, creating a sustainable energy system, or even developing a city's infrastructure, are all tasks that fall within the realm of engineering. These tasks all require a careful, thoughtful approach where factors such as functionality, sustainability, and safety are taken into account.
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A dense group of bacteria that are difficult to treat with antibiotics is called
A. a biofilm.
B. lysogenic.
C. a plasmid conjugate.
D. parasitic.
Answer:
A
Explanation:
Biofilms are a colony of bacteria that secrete a layer of extracellular matrix (made of polymeric substances of proteins or polysaccharides) that is hard to penetrate with antibiotics. The bacteria in the biofilm also function in coordination and are able to adapt to different factors hence making them hard to eradicate. They can be found in the inside surface of sewage pipes.
Answer:
A. a biofilm
Explanation:
Biofilms are a colony of bacteria that secrete a layer of extracellular matrix (made of polymeric substances of proteins or polysaccharides) that is hard to penetrate with antibiotics. The bacteria in the biofilm also function in coordination and are able to adapt to different factors hence making them hard to eradicate. They can be found in the inside surface of sewage pipes.
PENN
Select the correct pairing of an event with its effect on the Earth's surface.
A.
flood: a rock mass sliding down a mountainside onto the Earth's crust
B.
tornado: masses of ice that move soil across the Earth's crust
C.
glacier: a piece of rock collides with the Earth's crust
D.
volcano: the eruption creates new land on the Earth's crust
Answer:
D. volcano: the eruption creates new land on the Earth's crust
Explanation:
The volcanic activity is crucial for the formation of new crust on the planet, be it oceanic or continental one. Through the eruptions, the volcanoes release pyroclastic material, and more importantly and in much higher amounts, they release lava. The lava quickly starts to cool off on the surface of the Earth as the temperature is much lower. As it cools off, the lava becomes igneous rocks, more specifically extrusive igneous rocks. These new rocks are actually the new crust on the Earth's surface, thus increasing the land mass.
Clouds form when water vapor in the atmosphere cools to _______.
a) its dew point
b) its relative humidity
c) its convection point
d) its precipitation
Answer:
A
Explanation:
Answer:
The answer to the question: Clouds form when water vapor in the atmosphere cools to:____, would be, A: Its dew point.
Explanation:
Clouds are simply the visible condensation of the warm air that rises into the cooler atmosphere. Once this happens, with the moisture carried in the warm air, the cooler atmosphere will bring down the temperature of the air, and the water inside it in form of vapor, till it reaches dew point. Once there, the air condenses into either water dropplets, or crystals, making clouds look like formed pieces of cotton. If condensation is light, the clouds will appear white, and clear, as condensation gets higher, and temperatures change, the cloud will get darker, as it gets heavier with water. At its breaking point, water will come down now condensed either as rain, or ice, depending on temperatures.
what is a punnett square
It looks like a for square game set up
Basically it is used to predict the genotype of something
Answer:
A Punnett square is a tool that uses the genotypes of the parents to predict the probability of the possible phenotypes of their offspring.
Explanation: