first invertebrates to develop a true nervous system​

Answers

Answer 1

Answer:

Coelenterates are the first invertebrates to develop a true nervous system.


Related Questions

What is fulgurite? ? ?????????????

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Answer:

Fulgurites, commonly known as "fossilized lightning", are natural tubes, clumps, or masses of sintered, vitrified, and/or fused soil, sand, rock, organic debris and other sediments that sometimes form when lightning discharges into ground.

is cloud and moisture the same​

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no, it can definitely get in the cloud

Answer:

I'm pretty sure that clouds and moisture are not the same thing

Explanation:

please help me with this i’ll give brainlist

Answers

Answer:

(a) base

none of the other make sense

it’s b- revolving nosepiece

the base is lower on the microscope

At the completion of meiosis I, are the cells diploid or haploid? Explain.

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Answer:

During meiosis I, the cell is diploid because the homologous chromosomes are still located within the same cell membrane. Only after the first cytokinesis, when the daughter cells of meiosis I are fully separated, are the cells considered haploid.

Vitamins are created during:

A. Photosynthesis
B. Peroxidation
C. Combustion
D. All the above

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I believe it’s A.
If I’m wrong I’m sorry I think that’s what they said in school

Giving Brainliest!!!!!!!!

Answers

Answer:

organelles

Explanation:

since multicellular plants and animals have organs that perform specific functions, eukaryotic cells have organelles to perform their specific functions.

Choose the stage that best matches the description given.

In warm, humid climates, only dry bones would exist at this stage.

Day 1
Day 2
After day 50
Days 3-17
Days 26-43
Days 18-25

Answers

In order for an organism to decompose to the point that only dry bones will remain, it is estimated that in warm and humid environments the process will take roughly three weeks, In which case the options of Days 26-43 as well as after day 50 are correct.

Decomposition is what happens to any dead organic material. Decomposition is when the organic material is broken down into smaller compounds, organic or not. This process is affected by a variety of conditions including:

TemperatureHumidityPresence and species of insectsElements to which the material is exposed

and so on. Each of these factors can greatly impact how fast something will decompose.

The question at hand gives us the conditions for the fastest decomposition, given that this process is accelerated in warm and humid conditions. When in these conditions, it is estimated that an organism can take a minimum of three weeks to reach the stage in which all that is left is the skeleton (dry bones).

Three weeks consists of 21 days, however, option 6 that states "Days 18-25" is not being included given that during days 18-21, elements other than bones may still be present. For this reason, the correct answer is any day after day 21, that is, days 22-50+. Therefore, options 5 and 3 can both be considered correct as in those days only dry bones will remain.

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Answer: if u say this: In warm, humid climates, only dry bones would exist at this stage. on whatever your search thing

it shows that and it shows that a person on brainly said 18-25 but its the 26-43 one I think I'm not fully sure. Apologies but beware about all the other questions it made me get alot wrong those people on here are wrong i might be to  

Explanation:

Days 26-43

Type of molecule ,been having a hard time figuring it out

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I don’t really know but i’m pretty sure a Nucleic Acid if you’re learning about macromolecules

Answer: Cyclic adenosine monophosphate

Explanation:

Pollen is analogous to ____ in males

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Sperms (Pollen is technically a male gametophyte, meaning an organism that makes “gametes”, which in this case is sperm.).

why fertilizer is important​

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Answer:Fertilizers provide crops with nutrients like potassium, phosphorus, and nitrogen, which allow crops to grow bigger, faster, and to produce more food. To grow, plants require nitrogen compounds from the soil, which can be produced naturally or be provided by fertilizers.

Explanation:

2. The youngest part of the ocean floor is found at the
A. convergent boundary
C. transform-fault
B. divergent boundary
D. hot spot

Answers

Answer:

B. Divergent Boundary

Explanation:

The plates are moving apart, so magma is coming up and cooling into new fresh rock.

Can someone give me a example? I dont know how to write my equation​

Answers

Answer:

population increased: -1+3= 2

population decreased: 5-6= -1

stable population: 98-98=0

Explain why energy from the sun is essential for the cycling of nutrients

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Answer:

light energy is needed in photosynthesis or else the plant will die. no light no starch no starch no life rip

What is the difference between environmental science and environmentalism?

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Answer:Environmental science is the pursuit of knowledge about the workings of the environment and our interactions with it. Environmentalism is a social movement dedicated to protecting the natural world. Nature makes resources at similar speeds.

Explanation:

defirent between bacteria and virus​

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Answer:

On a biological level, the main difference is that bacteria are free-living cells that can live inside or outside a body, while viruses are a non-living collection of molecules that need a host to survive.

Hair color is determined by a single gene with a series of alleles, each resulting in different colors. Black, brown, blond and other hair colors are examples of___?
A. incomplete dominance
B. multiple alleles
C. sex-linked trait
D. polygenic traits

Answers

Answer:

dissimilar appearence or properties.

Explanation:

Hair color is not so simple as that. Most traits, especially those as complex as color, are controlled by many alleles at many loci. That's why there are different kinds of brown, blond, and red hair in the population. There is no "hair color gene." A fascinating paper came out a few years ago, identifying dozens of SNPs playing a role in hair and eye color. It's a deep, deep rabbit hole that we have only begun to plunge into.

If a bee is flying in a circle at a constant speed Is the bee acceleratiy

Answers

Answer:

If a bee is flying in a circle at a constant speed, is the bee accelerating? YES, the bee is accelerating. Because acceleration is the change in velocity per unit of time, and the bee is constantly changing direction, the bee is also constantly changing velocity and is therefore accelerating.

Explanation:

Hope it helps

Answer:

Yes it is accelerating

Explanation:

I don't know if you mean accelerating but yes (In mechanics, acceleration is the rate of change of the velocity of an object with respect to time.)  

What makes plants wilt?

Answers

The dehydrated collapsing cells in the leaves and stems cant stay together

Recently there has been a decline in the abundance of life on coral reefs. Scientists are unsure why, but one of the explanations for it is that global temperatures are increasing, making water temperatures rise. These small changes are killing off some of the smallest animals on the reef, which then affects the entire food chain. Which of the following would NOT help protect the diversity of the coral reef?

a: creating coral reefs in cooler waters ?
b: limit fishing around reefs
c : ban places of anchors in reef
d: ban cities into discarding sewage into coral reefs

Answers

C bbbbbbbbb bbbbbgyygsgduhejjrjkrjjdjjjbnnfhf

Limit fishing around reefs would not help to protect the diversity of coral reefs.

What are coral reefs?

Coral reefs are among the world's most diversified ecosystem and an underwater habitat that is characterized by corals that construct reefs. 

Coral polyps, the invertebrates responsible for reef formation, come in a variety of shapes and sizes, including vast reef-building colonies, graceful flowing fans, and even small, solitary species.

Coral polyp colonies are bound together by calcium carbonate to build reefs.

According to UNESCO, if we continue to generate greenhouse gases at current levels, the coral reefs in all 29 reef-containing World Heritage sites would be extinct by the end of this century.

The Paris Agreement's goal of keeping global average temperature far below 2°C above pre-industrial levels is the only way for coral reefs to survive.

Hence the correct option is B.

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One of the roles of ecological succession is to encourage biodiversity in a habitat. Ecological succession occurs in stages and permits a habitat to allow new species to grow in number as the habitat A)is destroyed B)remains the same C)undergoes change D)is relocated

Answers

C as the habitat undergoes changes is ur answer

Ecological succession occurs in stages and permits a habitat to allow new species to grow in number as the habitat undergoes change. Thus C is the correct option.

What is ecological succession?

Ecological succession is defined as the process through which the mix of species and habitat in an area changes over time.  Gradually these communities replace one another until a climax community like a mature forest is reached, or until a disturbance, like a fire, occurs.

There are two major types of ecological succession namely primary succession and secondary succession. Primary succession occurs when a new patch of land is formed or exposed for the first time.

Secondary succession occurs when a climax community or intermediate community is impacted by a disturbance.

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How is CO2 essential for life?

Answers

Answer:

if there will be no CO2 then there will be no food because the green plants produce food using the CO2 only

Explanation:

brainliest plz

Answer:

Carbon dioxide provides the carbon that is the building block of all life. Plants consume carbon dioxide to grow and animals consume plants to obtain the necessary carbon for existence. ... All plants and animals die. The carbon eventually becomes coal, natural gas and crude petroleum locked inside the earth

Define radiation energy

Answers

Answer:

Radiation energy can be defined as energy produced from the sun, chemicals, or waste. Radiation is any energy that causes some consequence to out body or animal.  

Explanation:

answer →  energy that travels by waves or particles

write the chemical equation of aerobic respiration?​

Answers

Answer:

[tex]\huge\color{cyan}\boxed {\colorbox{black}{ANSWER}}[/tex]

C6H12O6 + 6O2 ⟼ 6CO2 + 6H2O + 38(ATP)

According to the figure, is this population more likely to grow slowly or quickly in the next 10 years

Answers

Answer:

There isn't enough information to answer this question. Maybe if you add the figure I would be able to help you get an answer. Have a good day :)

Explanation:

How do cells respond to signaling?

Answers

Answer:

Cells have proteins called receptors that bind to signaling molecules and initiate a physiological response

"Different receptors are specific for different molecules. ... Receptors can also respond directly to light or pressure, which makes cells sensitive to events in the atmosphere."

got it from g00gle:)

Explanation:

ounces is In the apothecary system of measurement, equal to one apothecary pound. a) eight O b) 16 c) 12 d) four

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What is the function of the sodium potassium pump?

To move sodium ions extracellularly and potassium ions intracellularly
To move sodium and potassium ions extracellularly
To move potassium ions extracellularly and sodium ions intracellularly
To move sodium and potassium ions intracellularly

Answers

Answer:

D) To move the sodium and potassium ions intracellularly

Enzyme activity generally increases as temperature increases within an enzyme’s optimal range because an increase in temperature causes an increase in molecular motion. This increase in molecular motion results in the enzyme and its substrate coming into contact with each other more often. At too high a temperature, however, the enzyme will become denatured and no longer be able to function. As the video describes, that is what happens when someone has a high fever.

What do you think happens to enzyme activity as temperature decreases outside an enzyme’s optimal range? Explain your answer in terms of molecular motion.

Answers

This most reliable temperature is commonly around human frame temperature (37.5 °C) for the enzymes in human cells. Above this temperature, the enzyme shape begins to interrupt down denature given that at better temperatures intra- and intermolecular bonds are broken because of the enzyme molecules' advantage of even greater kinetic electricity.

Each enzyme has a temperature variety in which a maximal charge of response is accomplished. This maximum is referred to as the temperature most desirable of the enzyme. The most excellent temperature for maximum enzymes is set at ninety-eight. 6 tiers Fahrenheit (37 ranges Celsius). There also are enzymes that work nicely at decreased and better temperatures.

Most activity is accomplished on the enzyme's ultimate temperature. The lively website online of the enzyme modifications shape as the temperature rises above the surest temperature, resulting in a decline in interest. Above and under the highest quality temperature, activity decreases.

Most enzyme functions are done at 37∘C in humans due to the fact the enzymes are capable of holding their structure at that temperature, allowing it to break down complex molecules efficiently.

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example of potential or kinetic energy?​

Answers

Potential energy is  the buildup of energy.

Example: When a bow is pulled back it creates a buildup of energy (potential energy) for the arrow to go forward.

Kinetic energy is the the energy of motion

Example: You sprint to the finish line of a track and try to stop but due to kinetic energy you won't stop immediately but you slowly decelerate.

girlcome 5324611502 p-here​

Answers

Um what do you mean by that ?

HELLO, have a nice day....

is a plant a cell, a tissue or an organ

Answers

All plants are organs
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