The chart shows embryos of different animal phyla.
Based on the evidence of their embryos, which pair of phyla are most closely
related?
O A. Echinodermata and Annelida
O B. Mollusca and Arthropoda
O C. Mollusca and Echinodermata
O D. Annelida and Chordata
Answers
Answer: B
Explanation:
AP*X
Invertebrates with an exoskeleton, segmented bodies, and paired jointed appendages are known as arthropods.
Molluscan animals have soft bodies that are triploblastic, bilaterally symmetrical, and coelomate. Malacology is the study of Mollusks. They are slow-moving invertebrates with a thin fleshy envelope or mantle that protects the visceral organs.
What are the similarities between Mollusca and Arthropoda?They are triploblastic creatures.They are animals with bilateral symmetry.They're coelomates.They are organized at the organ system level.Thus, we can conclude that option B, Mollusca, and Arthropoda are correct.
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Related Questions
Which statement best describes how a catalyst can speed up a chemical reaction? The catalyst decreases the reaction energy needed. The catalyst increases the concentration of products. The catalyst binds to enzymes to release substrates. The catalyst increases the concentration of reactants.
Answers
Answer:
The catalyst decreases the reaction energy needed.
Explanation:
The catalyst speeds up chemical reactions by decreasing the amount of activation energy/reaction energy needed in the reaction.
Compared to reactions without catalysts, they are much faster because there is less activation energy needed.
Catalyst is any substance that causes or increases the rate of a chemical reaction without itself being consumed For example - enzymes are biocatalysts.
The catalyst can speed up a chemical reaction by reducing the activation energy or by changing the reaction mechanism.
The minimum amount of extra energy required by a reacting molecule to get converted into the product is defined as activation energy.
So, the correct answer is The catalyst decreases the reaction energy needed.
Other options-
The catalyst increases the concentration of products- incorrect. Catalysts do not affect the equilibrium concentrations of products or reactants. The catalyst binds to enzymes to release substrates- incorrect. The catalyst binds to the substrate and converts the substrate into products.The catalyst increases the concentration of reactants- incorrect. Catalysts do not affect the equilibrium concentration of products or reactants.Learn more about activation energy-
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NEED HELP ASAP
In vitro experiments model the conditions in living cells. Which of the
following is not an advantage of in vitro experiments ?
O A. The lack of interference from cell parts during observations
O B. The reduction in extra substances that can confuse results
O c. The unnatural behavior of some enzymes in a test tube
O D. The ability to control all possible variables
Answers
why is the dominant allele called dominant.
A. There is always at least one dominant allele
b. there are always more dominant alleles in a genotype
c. it dominates the phenotype
d. the dominant alleles are the only kind that determine phenotype.
Answers
Answer:
It dominates the phenotype
Explanation:
The phytoplankton at the bottom of the pyramid take in and store a certain amount of the Sun's energy. Does all of the energy stored by the phytoplankton reach the top level of the pyramid?
Answers
How many total, non-unique alleles are there for each gene in a population of 250 humans?
a- 250
b- 1000
c- 125
d- 500
Answers
Answer:
its 500
Explanation:
i just took the quiz and this was the right answer.
Answer:
I hope this helps.
Explanation:
A class is doing a science experiment to investigate the blood types of each of the students. Which label would be on the container in which the students dispose of materials that have leftover blood? chemical waste broken glass hazardous waste trash
Answers
Answer:
hazardous waste
Explanation:
Blood is a biohazardous waste, also called infectious waste or biomedical waste, is any waste containing infectious materials or potentially infectious substances such as blood. Of special concern are sharp wastes such as needles, blades, glass pipettes, and other wastes that can cause injury during handling.
Which animal has a single-loop circulation?
Answers
Answer:
Fish
Explanation:
Fish are vertebrates and only have a single loop-circulation system.
Answer:
fish
Explanation:
i just took the test. hope this helps
A
Identify the structures in the cell pictured on the
right
Label A
Label B
Label C
Label D
D
<
<<
DONE
С
B
Answers
Answer: Label d?
Explanation:
*PLEASE ANSWER* What is a sudden increase in temperature of a natural body of water that can harm aquatic organisms? a.) land pollution b.) thermal pollution c.) air pollution d.) acid rain
Answers
Answer:
The answer is option B.
Thermal pollution
Hope this helps you
13
Select the correct answer.
A farmer changed certain timings of his farming operations to control pest infestation in his field. Which pest control method did he use?
OA
genetic pest control
B. biological pest control
C. cultural pest control
OD
chemical pest control
О Е
mechanical pest control
Reset
Next
Answers
Answer:
Is it chemical pest control?
Explanation:
Might I be right.....
Answer:
C
Explanation:
Cultural pest control is done at a particular te set to be done.
Plants absorb sunlight through Photosynthesis. Which characteristic of life is this an
example of?
A. Obtains and uses energy
B. Responds to stimuli
C. Grows and develops
D. Homeostasis
Answers
Answer:
A. Obtains and uses energy
The characteristic of life shown here is plants obtain and use energy.
What is photosynthesis?By using the energy from sunlight, plants, some bacteria, and some protozoa make sugar, which cellular respiration then transforms into ATP, the "fuel" that all living things use. The green pigment chlorophyll is responsible for the transformation of inefficient solar energy into useful chemical energy. The photosynthetic process makes use of water and emits the oxygen that is vitally necessary for our continued existence.The overall reaction of photosynthesis is:6H₂O + 6CO₂ + light energy → C₆H₁₂O₆+ 6O₂
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The lipid composition of the membranes of different organisms can vary, depending on the organism's environmental conditions. Which of the following best describes the hydrocarbon tails in the phospholipid bilayer of organisms that thrive in extreme cold? They will be unsaturated to prevent packing, decreasing viscosity. They will be saturated to prevent packing, decreasing viscosity. They will be unsaturated and pack together to increase viscosity. They will be saturated and pack together to increase viscosity
Answers
Answer:
They will be saturated and pack together to increase viscosity.
Explanation:
Hope it helps.
Design an experiment that would help you collect the data you have identified in question four independent variable - x , dependent variable - y.
What is independent variable?The indepent variable is something that is stable , it does not change & the dependent variable is that variable that depends on the independent variable.
The experimenter's chosen variable or variables are considered independent. The anticipated "cause" will be this manipulation. The independent variable's value determines how much the dependent variable is worth.
The result of the cause will be this (if the manipulation succeeds). One group of volunteers receives a medication, while the other receives a placebo. Cancers diminish in the medication group but they do not in the control (placebo) group.
Therefore, Design an experiment that would help you collect the data you have identified in question four independent variable - x , dependent variable - y.
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In the punnet square,fill in the shaded boxes with the alleles of. Each parent. Use B for the dominant allele (black fur) and b for the recessive allele (white fur)
Answers
Answer:
male - female blck is tge answe ok
Answer:
Male - B
Female- b
combination is Bb on all
Black fur- 100%
White fur- 0%
Explanation:
right on edge
Please help me, and only provide with the given answers so I am not confused. The curve on the left shows the height of a population of penguins. The curve on the right shows the population five years later. What has happened to this population? (Available answers are in photo) Will mark best answer BRAINLIEST
Answers
Explanation:
DIRECTIONAL SELECTION!!!!!!!!!!!!!!!!!!
The population of penguins has gone through the directional selection.
What is directional selection?It is a mode of negative natural selection in which an extreme phenotype is favored over other phenotypes.
This causes the allele frequency to shift over time in the direction of that extreme advantageous phenotype.
How these two graphs shows directional selection?On each graph, the X-axis variable is the type of phenotypic trait (here height) and on the y- axis variable is the number of penguins.
Left graph shows the population before directional selection and right graph shows the population after directional selection.
Here height of the penguins reduces and favored over time due to directional selection.
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A very metabolically active cell is likely to have lots of which type of organelle?
Answers
Answer:
The answer will be mitochondria.
Explanation:
I hope this helps :)
Please help
Lightning converts_________
into ________.
A. nitrates, atmospheric nitrogen
gas
B. ammonia, nitrites
C. nitrites, ammonia
D. atmospheric nitrogen gas,
nitrates
Answers
Answer:
The answer is option D.
atmospheric nitrogen gas,
nitrates
I hope this helps you
Answer:
D. Atmospheric nitrogen gas, nitrates
Explanation:
The enormous energy of lightning breaks nitrogen molecules in the stmosphere and allows their atoms to combine with oxygen in the air forming nitrogen oxides. These dissolve in rain, forming nitrates, that are carried to the earth.
(Hopefully this helps somehow)
_____ is a product of photosynthesis that becomes
food for the autotrophs that produce it.
Answers
Answer:
Glucose
Explanation:
Glucose is a product of photosynthesis that becomes food for the autotrophs that produce it.
Consider the chromosome. The parts of a chromosome are labeled. The lines on the chromosome are labeled b. Which best describes the function of the part labeled b? carries all the genetic information of the organism provides all of the master instructions of the cell joins sister chromatids codes for a specific trait
Answers
Answer:
carries all the genetic information of the organism
Explanation:
Genes are located on many chromosomes. In other words, a particular section of the genome is located on each chromosome.
What are the main role of chromosome in the information?The primary function of the chromosomes is to transfer DNA, the fundamental component of genetic material. The genetic instructions for numerous biological functions are encoded in DNA.
Chromosomes, which resemble threads, are located in the nucleus of both animal and plant cells.Protein and a single molecule of deoxyribonucleic acid make up each chromosome (DNA).
These processes are necessary for the development, maintenance, and procreation of the organisms.Proteins like histones, which protect the chromosomes.
Therefore, DNA is passed down from parents to children and contains the precise instructions that give each sort of living thing its individuality.
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The connection between producers and consumers is that only
a: heterotrophs can perform photosynthesis to produce energy for all life
b: heterotrophs can perform cellular respiration producing oxygen for all organisms
c: producers use cellular respiration to produce energy for all life
d: autotrophs can use sun energy to produce energy for all organisms
Answers
defend Human Evolution against Scientific Creationism
Answers
Answer: According to the National Academy of Sciences (NAS), a scientific theory is “a well-substantiated explanation of some aspect of the natural world that can incorporate facts, laws, inferences, and tested hypotheses.” No amount of validation changes a theory into a law, which is a descriptive generalization about nature. So when scientists talk about the theory of evolution—or the atomic theory or the theory of relativity, for that matter—they are not expressing reservations about its truth.
Explanation: The theory of evolution, meaning the idea of descent with modification, one may also speak of the fact of evolution. The NAS defines a fact as “an observation that has been repeatedly confirmed and for all practical purposes is accepted as ‘true.’” The fossil record and abundant other evidence testify that organisms have evolved through time. Although no one observed those transformations, the indirect evidence is clear, unambiguous and compelling.
20 points and brainlist and thanks please Mike wrote the characteristics of two types of galaxies as shown below: Type A: Does not have a regular shape Type B: Forms a perfect sphere or a smooth flattened oval Which statement is correct?
Type A is a spiral galaxy and Type B is an elliptical galaxy.
Type A is an elliptical galaxy and Type B is a spiral galaxy
. Type A is an irregular galaxy and Type B is an elliptical galaxy.
Type A is an elliptical galaxy and Type B is an irregular galaxy.
Answers
Answer:
The answer is B. Please do as you said
Answer:
the answer is B
Explanation:
I got a 100 on the test
PLLLEAAASE HELP!! This presentation will explain how energy from the sunlight is used during photosynthesis
• Detailed descriptions of what happens during
A) photosynthesis (the light-dependent reactions and the light-independent reactions)
B) transitioning between photosynthesis and respiration
C) cellular respiration or fermentation
• An explanation of how the molecules in photosynthesis and cellular respiration are similar. Please include descriptions of the molecules involved in
each of the processes above.
• Complete sentences should be used in all written descriptions and explanations
• Illustration , diagrams, or images that help explain the transition between the reactions of photosynthesis and cellular respiration
A) You can create your own images, or use images from websites or other sources
B) if you use premade images, you will need to give a reference of the source of that image and create your own unique caption to describe the
image
Your presentation should be detailed and organized, but it can be presented in a variety of ways
• ustrated story
• slide presentation
. comic strip
Answers
Answer:
Detailed descriptions of what happens to the carbon atom:
during photosynthesis (the light-dependent reactions and the light-independent reactions)
transitioning between photosynthesis and respiration
during cellular respiration or fermentation
An explanation of how the carbon atom is transferred between molecules. Please include descriptions of the molecules involved in each of the processes above and be sure to mention the movement of electrons and energy as the carbon atom moves from one reaction to another.
During cellular respiration:
The cell is oxidized.
Transitioning between photosynthesis and respiration:
It is taken from CO2 converted to glucose then either converted back to CO2 or it is used for other processes and may expelled another way.
How is the carbon atom transferred between molecules:
The electrons move through a series of electron carrier proteins, called the electron transport chains, within the thylakoid membrane.For every 12 of the resulting three-carbon molecules made, two are removed to build organic compounds and 10 continue on in the cycle. The two three-carbon molecules that are removed bond together, forming a six-carbon sugar such as glucose.
What happens to the carbon atom during:
Photosynthesis: carbon is taken in from the air, in the form of carbon dioxide and through the energy provided from sunlight it is converted to a carbon chain known as a sugar.
Explanation:
I did this in 4th grade.
A student lists the numbers of fish, snails, and frogs in an
aquarium.
Which two terms describe this type of data?
O A. Discrete
O B. Quantitative
C. Qualitative
D. Continuous
Answers
Answer:A-discrete
Explanation:Discrete data is a information that we collect and that can be counted and only has a certain number of values.
The image shows a paramecium and a bacterium. One of these organisms is very good at rapidly adapting to environmental changes because it has the ability to take in stray genetic information from the environment. Which structure allows the organism to do this?
Answers
Answer:
The bacteria forms new kind of cells to adapt to a new environment. This adaptation is under tight genetic control, involving the expression of multiple genes.
the bacteria need to adjust their enzyme levels in order to quickly benefit from the nutrient mix that is currently available in the surrounding.
If the living environment undergoes a sudden change, the bacterium's own production of proteins has to fulfill these changes in an effective way.
What is a similarity between a tulip and a crocodile? A function of both of their outer coverings is to reduce water loss. In both the tulip and crocodile the male reproductive organ is the testes. The tulip and crocodile both have internal skeletons that support them. The outer coverings of the tulip and crocodile both protect the organism.
Answers
Answer:
A function of both of their outer coverings is to reduce water loss
Explanation:
Crocodile and Tulips are both distinct species of organisms. Crocodile belongs to Kingdom Animalia while Tulips belong to Kingdom Plantae. However, despite their elaborate differences, they do have one feature in common, which is the function their outer covering performs.
Tulips are temperate plants I.e. like cold regions, hence, their outer covering functions to prevent excessive loss of water. On the other hand, the scaly skin of the crocodiles help them against water loss. This is common between the two different species.
Does anyone know how to graph solubility curve?
Answers
Answer:
All you need to do is draw the lines connecting the dots. I couldn't do it with this platform.
Explanation:
Using the drop-down menus below, identify the processes cells use to maintain homeostasis
Answers
Answer:
OsmosisActive TransportPassive TransportDiffusionExplanation:
Answer:
Osmosis
Active Transport
Passive Transport
Diffusion
Explanation:
An example of subjective information is: a. five petals b. red stem c. shrub d. beautiful leaves
Answers
Answer: The answer is D - Beautiful leaves.
Explanation: Subjective data is gathered from the patient telling you something that you cannot use your five senses to measure. If a patient tells you they have had diarrhea for the past two days, that is subjective, you cannot know that information any other way besides being told that is what happened.
Answer:
the correct answer is d
Explanation:
i have done lessons on subjective information
Labeling the Amino Acid Structure Using the drop-down menus, label the parts of an amino acid. Label A Label B Label C
Answers
Answer:label a:amino group
Label b:R group
Label c:carboxyl group
Explanation:
Label b:R group, Label c:carboxyl group.
What are Amino acid?All living things employ amino acids as building blocks for proteins. Twenty distinct amino acids are required by your body for proper operation.
You must consume essential amino acids through the food you eat. Beef, eggs, and dairy products are just a few examples of meals that contain essential amino acids.
The building components of protein are amino acids. Long strands of amino acids make up proteins. Numerous distinct proteins in your body each perform vital functions. Each amino acid sequence in a protein is unique.
Therefore, Label b:R group, Label c:carboxyl group.
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Use the drop-down menus to complete the sentence below. A is an organism that may be eaten by a .
Answers
Answer:
A
✔ primary consumer
is an organism that may be eaten by a
✔ secondary consumer