which of the following best describes why invertebrates isn't considered a scientifically valid word when classifying animals​

Answers

Answer 1
Taxonomy used to have two groups of vertebrates and invertebrates. But invertebrates are far more diverse when it comes to the phylogenetic tree. Vertebrates all share same characteristic which is a back bone made of vertebrae, but invertebrates don’t share a common anatomical structure that all have; they are radically different in structure so they can’t be grouped in a single group. You have Arthropoda, which all have jointed limbs and segmented bodies and molt their cuticles. There’s Cnidaria, which most have tentacles and nematocysts and are radially symmetrical. And Mollusca, which have a muscular foot and a part of their body called a mantle. All these groups are invertebrates, but there’s nothing they share in common WITHOUT referring to the fact that they don’t have vertebrae. So basically that’s just an example why they can’t be grouped into one category; they all have different characteristics and are placed in different areas of the animal kingdom’s phylogenetic tree. Hope this helps

Related Questions

is cashew a multiple fruit​

Answers

[tex]\text{Hey there!}[/tex]

[tex]\text{Question}\downarrow[/tex]

[tex]\text{is \bf{cashew}}\text{ a multiple fruit?}[/tex]

[tex]\text{Answer}\downarrow[/tex]

[tex]\boxed{\text{Unfortunately, it is NOT a multiple fruit or fruit in general.}}[/tex] [tex]\checkmark[/tex]

[tex]\text{Reason}\downarrow[/tex]

[tex]\text{Cashews are some sort of nut. It comes from a cashew nut tree.}[/tex]

[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{LoveYourselfFirst:)}[/tex]

organisms that rely on other living things for food are called

Answers

Answer:

organisms that rely on other living things for food are called heterotroph

Answer: heterotrophs

What is a histone protein

Answers

histones are highly alkaline proteins found in eukaryotic cell nuclei that package and order the DNA into structural units called nucleosomes

HELP!!! Coral bleaching events are occurring in coral reefs around the world. Which statement best describes how human activity will likely continue to cause a loss of reef biodiversity​

Answers

Answer:

A.

Explanation:

As humans continue the terrible actions on the ocean, the more the fish and other forms of life are forced into a smaller space, and then killed in the only space they have.

Answer: Option B

Explanation:

Ocean acidification is being the greatest threat to coral reef now a days, this is because the human activity is increasing the rate of carbon dioxide production in the atmosphere.

The coral reefs are experiencing degradation due to ocean acidification which causes rise in temperature due to increased concentration of carbon dioxide in water.

Hence, option B is correct.

two human activities that could contribute to the introduction of invasive species.

Answers

Answer:

Invasive species or alien species is the term referred to the organisms which are introduced in an ecosystem due to man made or any environmental activity. Humans play primary role in the introduction of invasive species in a certain ecosystem.

Explanation:

These activities may include the ships and boats flowing in aquatic regions of the world that carry novel aquatic organisms in their ballast water and propellers respectively. The small insects present into their shipping pallets and wooden parts are carried from one place to another place where they cause threat for the availability of food and nutrients to the already existing populations.

Another human activity that can contribute to the introduction of invasive species is the enhanced fuel consumption which leads to environmental pollution around the globe. This environmental pollution gets so immense in some areas that it can make the survival of existing species difficult and thus they move to new location for their survival.

Therefore, it can be seen that human activities have potential role in the spread and introduction of invasive species.

Hope it helps!

As an object travels around the sun or other large object, it travels on a fixed path that is
called its

A. period
B. orbit

C. perigee

D. revolution

Answers

Answer:

B. orbit

Explanation:

As an object travels around the sun or other large object, it travels on a fixed path that is  called its orbit.

A student conducts an experiment to see how music affects plant growth. The student obtains four identical plants. Each one is potted in the same type of soil and receives the same amount of sunlight and water each day. Plant A listens to classical music for three hours each day. Plant B listens to rock music for three hours each day. Plant C listens to country music for three hours each day. Plant D does not listen to any music at all.
2. In the experiment described in the scenario, which group represents the control group?

A. Plant C
B. Plant B
C. Plant D
D. Plant A

Answers

Es la C la correcta

Answer: C. plant D

Explanation:

To study how music affects plant growth, the experiment exposes several identical plants to different types of music and there is a control plant that is not exposed to any music. Plant D does not listen to any music at all.

[tex]\textit{\textbf{Spymore}}[/tex]​​​​​​

what do proteins, nucleic, acids, and carbohydrates all have in common

Answers

Answer:

oxygen is common in them

Explanation:

ozygen is common in all of rhem

Answer:

Proteins, nucleic acids, and carbohydrates are macromolecules present in living organisms.

These molecules are composed of carbon atoms bonded together. These carbon atoms also bind to other elements such as hydrogen, oxygen, nitrogen and phosphorus. Each type of molecule has its own composition of different proportions.

A gardener places extra nutrients in the soil of a flower bed to make the
flower grow faster. Through which tissue would the nutrients first move into
the flower?
A. Chloroplasts
B. Phloem
C. Xylem
D. Amoeba

Answers

ANSWER:

Through xylem, the nutrients first move into the flower.

EXPLANATION:

The roots of the plant are responsible for absorbing water and nutrients from the soil. These are then provided to the vascular tissue xylem of the plants.

The xylem then transports all the nutrients to the different parts of the plant. The xylem being one of the two vascular tissues has a role of transporting 'water and nutrients' from soil to different parts of a plant.

Answer:C

Explanation:

18.   Based on this image, what can be inferred about the organization of life? 

      A. There are only two organisms within one population.  B. Bigger systems build on smaller systems.  C. There are no connections among organisms.  D. Smaller systems build on larger systems. 

  

Answers

Answer:

Answer choice B

Explanation:

As you move clockwise in the systems, each picture shows that the bigger systems come from and build off of the smaller systems

Answer:

The answer is B. Bigger systems build on a smaller system.

Explanation:

This image represents or wants to show how the biosphere is full of life, and how life is formed from the smallest particle. From the largest ecosystem to a small atom, all these are related and are equally important for all together to form the life of planet earth. In every living being there is a world of life that goes from a small atom forming a molecule, to creating a great living ecosystem.

two atoms have the same number of protons but different number if neutrons these atoms are:


A. electrons


b. molecules


c. radiation


d. isotopes

(apex)​

Answers

Answer:

isotopes

Explanation:

Answer:

Isotopes

Explanation:

The image below shows a chromosome with three genes labeled
gene 1
gene 2
gene 3
How are these three genes related?
A
All three genes are linked, and genes 2 and 3 are strongly linked
B.
All three genes are linked, and genes 2 and 3 are weakly linked
c.
Genes 1 and 3 are unlinked, and genes 2 and 3 are strongly linked
d. Genes 1 and 2 are unlinked, and genes 2 and 3 are weakly linked. I NEED THIS ASAP PLZZZZ???

Answers

Answer:

A

Explanation:

Linked gene are genes with a high probability of being inherited together. Linked genes are mostly found on the same chromosome and chromosome arm. The closer the genes are along the arm of the chromosome, the even higher degree of linkage – because even in cases of crossing over in meiosis I, they are more likely to remain together.

Answer:

A. All three Genes are linked, and genes 2 and 3 are strongly linked

Explanation:

when dna separates into two strands the dna would most likely be directly involved in ​

Answers

Answer:

Replication

Explanation:

DNA unwinds into 2 seperate strands during replication

DNA replication is the process in which DNA makes it copy and incorporate into the daughter cell. Cell division is the process in which the DNA is replicated and transmitted in the daughter cells.

DNA replication is the starts with the formation of a replication fork, in which the helical structure of the DNA is unwinded into two template strands.

The information coded into the template strand is copied into the complementary strand. The process of making a complementary strand from the template strand involves transcription, followed by a translation.

Thus, during cell division, the DNA is replicated and separated into two strands.

To know more about DNA replication, refer to the following link:

https://brainly.com/question/16464230

What similarities, if any, do you think exist between a human’s reproductive cycle and the life cycle of a fern? What differences, if any, can you think of?

Answers

Answer:

Plant Reproduction and Life Cycle. The life cycle of a plant is very different from the life cycle of an animal. Humans are made entirely of diploid cells (cells with two sets of chromosomes, referred to as ''2n''). ... Plants, however, can live when they are at the stage of having haploid cells or diploid cells.

Explanation:

In an animal life cycle, male and female parents each create sex cells (sperm and eggs) that unite to form a fertilized egg and develop into an offspring organism. Plants, likewise, have sperm and eggs in their life cycles, but these are produced by an intermediate stage between the adult and the offspring.

Humans and ferns are similar as both fertilize to give rise to a new life while different as the haploid form of life present in the ferns life cycle and both male and female reproductive parts are present in one plant.

Life Cycle of fern:The diploid fern gives rise to haploid spores which grow and form a gametophyte plant in which the male and female reproductive systems present. Male gamete fertilizes with the female gamete to form a diploid spore (seed) which gives rise to a new fern.

Human’s reproductive cycle :Human is diploid animal and male and female are clearly distinguished. Male sperm fertilizes the female egg to form a zygote which gives rise to a new human.

Therefore, humans and ferns are similar as both fertilize to give rise a new life while different as the haploid form of life present in the ferns life cycle and both male and female reproductive parts are present in one plant.

Learn more about Ferns:

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What is a B cell
A.)A pathogen that makes antigens
B.)A lymphocyte that makes antibodies
C.)An antigen that makes antibodies
D.)A virus that makes bacteria

Answers

Answer:

B.)A lymphocyte that makes antibodies

Explanation:

B cells creates antibodies, which help fight foreign viruses and bacteria to help prevent an individual from getting sick.

Many different populations of marine life live at a coral reef. This is an example of which of the following? Ecosystem diversity Genetic diversity Natural selection Species diversity

Answers

Answer:

Specie diversity

Explanation:

Let's understand each option to get to know that why specie diversity is the right option.

1- Ecosystem diversity shows that how different types of habitats there can be where the organisms can live, for example desert ecosystem, tundra ecosystem etc.

2-Genetic diversity means the diversity or variety present in the genetic makeup of organisms which leads to variation among same traits in organisms, for example, many types of eye color, many kinds of facial feature, height ranges etc.

3- Natural selection is based on a theory that there lies a competition of food and resources between organisms for survival. One who has better ability to grab resources survives better and is called fittest.

4- Specie diversity simply indicates that how many diverse kinds of specie or populations can stay at same habitat or ecosystem which perfectly suits our given situation in question.

Hope it helps!

Answer:

species diversity

Explanation:

Which is a result of a seasonal change (meaning a change that happens over
and over at a certain time of yean?

A Chipmunks sleeping underground through the winter
B
Mice growing larger due to having a large food supply
C
Grasses being killed by the spread of a virus
D
Plankton dying due 1 an oil spill in the ocean

Answers

Answer:

A. Chipmunks sleeping underground through the winter

Explanation:

A seasonal change in the behavior of a living organism is a change that occurs every year at a particular time. The reasons for the occurrence of such changes are so that the organism has advantage in survival in the environment. In this case we have the chipmunk that sleeps underground through the winter. We have an animal which exhibit a seasonal change every year, during the winter period. The reason for this is that the chipmunks have very quick metabolism, so if they are active during the winter they will starve because of lack of food. Instead, the chipmunks have evolved to hibernate during the winter, thus slowing down the work of their hurt during the winter and sleep, until the spring comes.

Answer:

Chipmunks sleeping underground through the winter

Explanation:

apex

What happen to the ocean floor in deep-ocean trenches

Answers

Answer:

it is destroyed as it plunges into the mantle

Deep-ocean trenches, such as the Mariana Trench, are formed by the process of subduction where one tectonic plate is pushed beneath another.

The ocean floor in deep-ocean trenches is significantly affected by geological processes. These trenches represent the deepest parts of the ocean floor and are created by the process of subduction, where one tectonic plate is forced beneath another and into the Earth's mantle. The area surrounding these trenches is often characterized by active volcanic activity and earthquakes due to the movement of the tectonic plates.

For example, the Mariana Trench, the deepest known part of the ocean, is a result of such a subduction zone. Material from the subducting plate is pushed into the mantle, contributing to intense geological activity. Over time, sediment and debris from erosion, biological activity, and volcanic eruptions may accumulate in the trench, altering the floor's composition.

Deep-ocean trenches are also situated close to features like mid-ocean ridges and abyssal plains. Mid-ocean ridges are where new oceanic crust is formed, hinting at the dynamic and cyclical nature of the ocean floor's topography. The rocky landscape of a trench contrasts with the relatively flat abyssal plains nearby, which are among the flattest and smoothest regions on Earth's surface.

Which describes a promoter?

Answers

Answer:

the first part of an operon that regulates where, when, and to what level a gene is expressed

Explanation:

Put the following levels of organization in order from smallest to largest: ecosystem, biome, population, biosphere, biological community, and organism.

Answers

Organism

Population

biological community

ecosystem

biome

biosphere

PS:increasing order

Population is a group of organisms of d same species

A biological community is the population of organisms living together and interacting in a given area

Ecosystem is the interaction between living and non living organism in a community

Biomes are biological communities that are formed in response to a shared physical environment

Biosphere is the part of the earth that contains living organism

The levels of organization in order from smallest to largest is - Organism, population, biological community, ecosystem, biome, biosphere

There are different levels of organization in every system including the biological system or ecological systems. In this case, there are various levels of the ecological system where:

Organism - an individual in a population that is a unit level and smallest in a particular organization.Population - a group of individuals within the particular species found in a specific area, and able to reproduce.Community - group of two or more species in a population found in a geographical area.Ecosystem - a community where the interaction between biotic and abiotic (non-living) components.Biome - an ecological area with the same climate and biodiversity that may have multiple ecosystems within it.Biosphere - all living organisms along with the spheres, interact with different geosphere.

Thus, The levels of organization in order from smallest to largest is - Organism, population, biological community, ecosystem, biome, biosphere.

Learn more about the ecological organization:

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What happens during anaerobic cellular respiration

Answers

In anaerobic respiration, glucose breaks down without oxygen. The chemical reaction transfers energy from glucose to the cell. Anaerobic respiration produces lactic acid, rather than carbon dioxide and water.

Hope this helped, please make to make me brianliest answer ❤️

Answer:    

Lactic acid fermentation may occur. Cells covert pyruvic acid into lactic acid. NADH is converted to NAD+. No additional ATP is produced after glycolysis. Alcohol fermentation may occur.Cells convert pyruvic acid to carbon dioxide and alcohol.

What would MOST LIKELY happen if the amount of phytoplankton in the ocean were reduced?

Answers

Answer:

The ocean food chain would shrink, as the phytoplankton are the base of the food chain

Explanation:

Atmospheric carbon dioxide levels would increase because phytoplankton are plants that use carbon dioxide in photosynthesis to grow.

Atmospheric oxygen levels would decrease since there would be more carbon dixodie (the carbon dioxide is converted to oxygen and carbohydrates by photosynthesis).

Oceanic pH levels would decrease, that is the ocean would become more acid. This would be due to higher levels of carbon dioxide, which makes carbonic acid when it dissolves.

It would cause the food chain to collapse

Which of the following is a compound? A.)Ne B.) N2 C.) NaCl D.) O2

Answers

Answer:

c. NaCl is a compound

Explanation:

Ccccccccccccccccccccc

What will a hypothesis become if it supported by repeated experimentation

Answers

Answer:

A hypothesis can become a scientific theory if it is supported by repeated experimentation.

Answer:

Sample Response: Corn starch, one of the covalent compounds, is solid at room temperature. The property of being solid is more common to ionic compounds. So, the hypothesis was mostly supported except for this one data point.

Put the stages of fossil fuel formation in their correct order pleaseeee.

* Natural gas is forced into crevices or
sedimentary rock pores.

•Oxygen is used up or expelled.

•Amount of heat dictates physical state of
fuel

•Material is buried in sediment and silt.

•Heat and pressure are applied.

•Organic material decomposes

Answers

Answer:

Explanation:

•Material is buried in sediment and silt.

•Organic material decomposes

.Oxygen is used up or expelled.

•Heat and pressure are applied.

•Amount of heat dictates physical state of  fuel

* Natural gas is forced into crevices or  sedimentary rock pores.

For fossil fuels to form, the correct natural processes must play out in a geologic formation. Fossil fuels are sourced from materials that becomes buried in sediments usually in a sedimentary basin. In the basin, the organic material decomposes in the presence of oxygen. With increasing compaction and burial, the oxic environmental cuts off and the decomposition ceases. As burial continues, heat and pressure is applied to the formation and natural gas is produced. The amount of heat dictates the physical state of the fuel that would be produced be it solid, liquid or gas. The fuel is then forced into reservoir rocks through traps.

Answer:

The correct answer is

-Organic material decomposes.

-Material is buried in sediment and silt.

-Oxygen is used up or expelled.

-Heat and pressure are applied.

-Amount of heat dictates physical state or fuel.

-Natural gas is forced into crevices or sedimentary rock pores.

Explanation:

For PLATO students

Which cell structures are seen in all cell types? Check all that apply.

DNA

cytoplasm

nucleus

ribosomes

cell membrane

Answers

the nucleus is seen in all cell types

Answer:

DNA

cytoplasm

 

ribosomes

cell membrane

Explanation:

Nucleus is not seen in all cell types.


How does translation form proteins?
DNIA

Answers

The ribosome reads an mRNA in codon (3  consecutive nucleotides) sequences. It begins with a start codon that codes for methionine. As the ribosome reads the codons, the respective tRNA (with the respective anticodon) is recruited bringing in an amino acid coded for by the codon. The amino acid brought in then forms a peptide bond (mediated by peptidyl transferase enzyme) with the preceding amino acid. This continues until the whole mRNA is read or until a stop codon is encountered. A polypeptide will eventually have been formed.

A population is growing at a rate of 2,4, 8, 16, 32. Which type of growth does this describe?

Answers

Answer:

C: Exponential growth

Explanation:

In Biology, economics and Mathematics, exponential growth means when the increase in population is happening at constant rate and it is positive.

So as we can see in the example that growth rate is almost doubling in each cycle, or it can be  expressed as 2^1, 2^2, 2^3, 2^4, 2^5.

We also use a formula for deriving and expressing population's exponential growth: Nt = N0 exp (r.t)

Here Nt indicates the number of organisms of a subject population in a certain time t, where r indicates the intrinsic growth rate and t being the time. The expression () is the Euler constant with value 2.718.

Hope it helps!

Answer:

Exponential rate

Explanation:

The given sample population is:

                             2, 4, 8, 16, 32

We have just two types of growth rate, linear and exponential growth rate. Linear growth rate inceases by a common or a constant difference. For example, given a set of values:

                         1,2,3,4,5 : we see that each value increases by 1

For exponential growth rate the values increase by a constant ratio. For example:

                 1, 4, 16, 64: we see a constant ratio of 4

From the given set of values, a constant ration best fits the increment. The ratio factor is by 2. This is an exponential growth rate.

Earth is home to more than 20 million kinds of organisms, and all have DNA made up of only four types of nucleotides. The bodies of each kind of organism grow and function according to instructions in their DNA. Such variety is possible because each organism's DNA molecules:
A.
can quickly change into different shapes.
B.
contain two strands of nucleotide bases.
C.
contain a unique sequence of nucleotide bases.
D.
combine easily with other molecules.

help MEEEEEEE please

Answers

Answer:i think it could be C im not sure

Explanation:

Final answer:

The Earth's biodiversity is attributed to the unique sequence of nucleotide bases in each organism's DNA, allowing for a vast combination of genetic codes despite the use of only four types of nucleotides.

Explanation:

The variety of life on Earth is possible because each organism's DNA molecules contain a unique sequence of nucleotide bases. This means the correct answer to the student's question is:
C. contain a unique sequence of nucleotide bases.

Despite the fact that all organisms use DNA as their genetic material with the same four types of nucleotides (adenine, thymine, cytosine, and guanine), the sequence of these bases can vary immensely. This variation allows for the incredible diversity of life we see on Earth. Just as combinations of zeros and ones can create vast amounts of different programs and data in computer systems, the combinations of A, T, C, and G in various sequences form the genetic code that directs the growth and function of every living organism.

Which of the following is a characteristic of a strong base?
O
A. It contributes OH-ions to a solution.
O
B. It contributes H+ ions to a solution.
O
C. It does not completely dissociate in water.
O
D. It is more concentrated than a weak base.

Answers

Answer:

A. it contribus OH-ions

Final answer:

A characteristic of a strong base is the complete ionization in solution to release OH- ions. Concentration doesn't define a base's strength; rather, it's the degree to which it dissociates in water. Acids, contrastingly, donate H+ ions.

Explanation:

Among the provided options, the correct answer is 'It contributes OH- ions to a solution'. Strong bases are substances that completely ionize in solution and release OH- ions. A base can be thought of as a substance that donates hydroxide ions. On the contrary, substances that contribute H+ ions are known as acids. The concentration of a solution doesn't define whether it's a strong or weak base, but rather the degree of dissociation does. Strong bases completely dissociate, as opposed to weak bases which only partially do so.

Learn more about Strong Bases here:

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The two triangles below are similar. What is the similarity ratio of ABC to DEF?A) 3:1B) 1:3C) 2:1D) 1:2 What was a negative consequence of industrial capitalism? Six years ago my son was one-third my age at that time.Six years from now he will be one-half my age at that time.How old is my son? The nucleus of a hydrogen atom is a single proton, which has a radius of about 1.0 10-15 m. The single electron in a hydrogen atom orbits the nucleus at a distance of 5.3 10-11 m. What is the ratio of the density of the hydrogen nucleus to the density of the complete hydrogen atom? the artists of the renaissance focused on all of the following exceptA. humans and their experiencesB. individual achievementsC. using perspective to make two dimensional work appear three dimensionalD. the Cathholic Church as an all powerful entity Write a C++ programthat returns the type of a triangle (scalene, equilateral,orisosceles). The input tothe program should consist of the lengths of thetriangle's3 sides. what is the equation for the line of reflection?x=3y=3y=xx=6 In vibration analysis, can damping always be disregarded? Assume that by continuing your education, you increased your yearly earning potential from $21,484 to $39,746. If the additional education costs $18,000, in about how many years will it pay for itself? You are called for a young man who was diving head first off a dock into a lake. Bystanders say he struck his head on the bottom because the water was too shallow. They said he was not breathing when they pulled him from the water and they have been performing rescue breathing for him. He is awake, but he is unable to breathe on his own. What type of damage or injury does this indicate?A. Damage to C-3, C-4, or C5B. Closed head injuryC. Damage to his thoracic spineD. Open head injury I need help with this problem. Which logarithmic equation has the same solution as x-4=2^3 What problem are parents of an adolescent more likely to face? What is the constitutional basis for the expressed powers of the federalgovernment? Thermosetting polymers are polymers that becomes soft and pliable when heated. ( True , False ) A rectangle is inscribed with its base on the x-axis and its upper corners on the parabola y = 11 x 2 . What are the dimensions of such a rectangle with the greatest possible area? At the mall, buying a pair of shoes and buying a book are independent events.The probability that a shopper buys shoes is 0.15. The probability that a shopper buys a book is 0.10.What is the probability that a shopper buys shoes and a book? The picture represents the excretory system.Which is represented by the X?nephronureterbladderurethra Evaluate 2^-4 TOOOOOOOOOOONGAAAAAAAAAAAAAA Is (4y-8)cm divided by 2 equals to 4y-8cm over 2 and then a cm or is it (2y-4)cm?