Crayfish exoskeleton is the part of the creature which shows autotomy and regeneration.
What is autotomy?Autotomy or self-amputation is the behavior of an animal shedding or discarding one or more of its own appendages, frequently as a self-defense technique to elude a predator's grasp or to distract the predator and thus allow escape.
Are Autotomy and regeneration the same mechanisms?No. Autotomy and regeneration are different processes however they are similar:
Certain living organisms like crayfish exhibit two processes: autotomy and regeneration.The primary distinction between autotomy and regeneration is that during autotomy, body parts are eliminated or shed from the body, but during regeneration, body parts are replaced or formed into a new creature or the amputated body part is regrownHow does crayfish undergo autotomy and regeneration?Crayfish belong to the class of crustacenas which regularly shed their exoskeleton through autotomy and regrow a new one through regeneration.the exoskeleton is rigid and hence does not grow along the size of the creature which allows the creature to shed it off. this process is known as MOLTING.Crayfish molt because as their size grows, they must shed their hard exoskeletons and grow new, larger ones. A crayfish molts six to ten times throughout its first year of existence.Molting normally takes only a few minutes. On the back side, the crawfish's brittle exoskeleton breaks between the carapace (head) and abdomen (tail), and the crawfish normally retreats by tail flipping.hence autotomy and regeneration go along each other in crayfish.
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Do the animals keep any of their previous structures?
Answer:
These structures are formed in similar ways during embryonic development and share like arrangements; however, they have somewhat different forms and functions. They are called homologous structures.
Explanation:
Which two worldwide agreements were written to address climate change?
a) Endangered Species Act and the Kyoto Treaty
b) Kyoto Treaty and the Paris Climate Accord
c) Lacey Act and the Paris Climate Accord
d) Montreal Protocol and the Lacey Act
Answer:
B
Explanation:
Which factor affects the climate of an area due to differences in specific heat?
Please help ASAP
A mountains
B large bodies of water
C latititude
D longitude
Answer:
c latititude
Explanation:
Latitude or distance from the equator – Temperatures drop the further an area is from the equator due to the curvature of the earth. In areas closer to the poles, sunlight has a larger area of atmosphere to pass through and the sun is at a lower angle in the sky.
Suppose that leg length in the Halkan pogo-bouncer, a common insect on the planet Terran02, is determined by five loci, A, B, C, D and E. Pogo-bouncers with the genotype aabbccddee have legs that are 5 mm long; and those with the genotype AABBCCDDEE have legs that are 55 mm long. What is the leg length of our friendly pogo-bouncer whose genotype is AaBBCcDDEe
Answer:
The leg length of the individual whose genotype is AaBBCcDDEe equals 40mm.
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
Similarities between plant cell,prokaryote cell and eukaryotic cell
Answer:
In structure, both animal and plant cells are quite similar. Both possess nucleus and plasma membrane, a selectively permeable membrane of the cell. Both animal and plant cells include membrane-bound organelles with their specialized functions.
I need someone to help me by answering this questions....
sorry I don't know maybe I should try
Which process requires energy from food to help a cell maintain homeostasis?
A. a phosphate ion being released from ATP
B. a phosphate ion being added to ADP
C. the conversion of glucose to oxygen
D. the creation of RNA from DNA
Answer:
B
Explanation:
Help i need all 3 done
Answer and Explanation:
1. Transform
2. Convergent
3. Divergent
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What mechanism is responsible for the obvious signs of an intoxicated person?
muscle cells have been blocked by dopamine
nerve cells are not functioning at all
cells are prevented from releasing hormones and enzymes
nerve cells are not effectively communicating with muscle cells
Answer:
nerve cells are not effectively communicating with muscle cells
Which characteristic could help you distinguish between types of fungi
Answer: The correct answer would be the spores made by the fungi.
The major phyla of the fungi are usually classified on the basis of characteristics of sexual structures.
For instance, the chytridiomycota produce zoospores, the blastocladiomycota undergo sporic meiosis, the ascomycota forms ascospores et cetera.
Fungi are mainly classified into seven phyla:
Microsporidia
Chytridiomycota
Blastocladiomycota
Neocallimastigomycota
Glomeromycota
Ascomycota
Basidiomycota
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Produces little to no Greenhouse Gase
Group of answer choices
coal
nuclear
natural gas
petroleum
Answer: I think it's c im sorry if it's wrong
Explanation: I took the test on Monday
28. The model below shows what happens to chromosomes during a certain part of the cell cycle. Why
is this step in the cell cycle important for maintaining a functioning organism?
1 chromosome
1 chromosome
(before mitosis)
(after replication)
centromere
1 chromatid
per chromosome
2 chromatids
per chromosome
a. Each cell needs a complete set of organelles in order for the cell to work properly
b. Copying the DNA provides more instructions so the cell can work more efficiently
C. Each cell needs to receive a complete copy of the chromosomes in order for the cell to work
properly
yes
Answer:
C. Each cell needs to receive a complete copy of the chromosomes in order for the cell to work properly
Explanation:
The model in this question depicts the process of DNA replication, which is the process whereby an identical copy of DNA is made. Based on the model in the question, one (1) individual chromosome forms two (2) sister chromatids per chromosome. Each sister chromatid contains the replicated DNA.
This process is very important and must occur prior to any cell division because every cell needs to receive a complete copy of the chromosomes in order for the cell to work properly. For example, each human cell must receive 23 pairs of chromosome or 46 chromosomes in order to function well and this is ensured by DNA replication.
After much research and DNA analysis, it has been determined that species in the same clade are actually more distantly related than originally thought. What is one way that the cladogram may change because of this information?
Answer:
Explanation: protein synthesis
Answer: b) A node would be introduced.
Suppose the stereocilia of one hair cell become permanently bent toward the kinocilium. What will most likely happen as a consequence
Answer:The options are not given, here are the options from another website.
a. A single pitch will be constantly perceived
B. A single pitch will no longer be perceivable
c. A or B depending on the hair cell's location
d. A or B depending on the bending's direction.
The correct option is d.
A or B depending on the bending's direction
Explanation:
This is because stereocilia are normal bent where there is a shearing force that occur when there is a up and down movements of the basilar membrane . When stereocilia bend towards the kinocilium, it make it depolarizes the cell and lead to the afferent activity to rise up and when the stereocilia bend away from the kinocilium , it hyperpolarizes the cell and lead to a reduction in afferent activity.
The consequences of this are that a single pitch will be noticed, or no pitch will be noticed. This will depend on the direction the stereocilia have bent.
We can come to this answer because:
Stereocilia are cellular accessories that help cells move around.They can curve up or down, generating different but very important effects.If the curvature is made towards the kinocilium, we can notice the formation of a pitch, as the cell becomes polarized.If the curvature is in the opposite direction to the kinocilium, the cell will be depolarized and it will not be possible to visualize the pitch.In this case, we can state that the consequences of the curvature of the stereocilia will depend on the side towards which this curvature is directed.
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What would the dna look like if it was made from dna with the following sequences?
GCTTAAC
AND
TTAACGC
Answer:
Explanation:
This is what it would look like with it's corosponding parts
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Which of these conditions may prevent mold from growing?
A.
high humidity
B.
freezing temperatures
C.
warm temperatures
D.
low humidity
A population of 24000 has couples that have 2 babies. What is the number of babies?
Answer:12000 babies
Explanation: 24000/2 = 12000
Define protein synthesis
Answer:Protein synthesis is the process in which cells make proteins
Explanation:
Protein synthesis is the process in which cells make proteins. It occurs in two stages: transcription and translation. Transcription is the transfer of genetic instructions in DNA to mRNA in the nucleus. It includes three steps: initiation, elongation, and termination
I cannot understand why answer is D ... can someone pls help me.
Answer:
It is quite simple.
Lets start from the markings above the topic "external temperature."
3 lines after 20 C is 23 C. As you can see, both of them (animal 1 and animal 2 wave drawing on the graph) meet at that point. So thats why Option D is correct
The theory of Copernicus contained six hypotheses:
The sun is at the _______ of the planets.
The Earth is ______ of the planets.
All the planets _______around the sun.
Each planet revolves around the sun in its own______ and at different _______
.
The moon______ around the Earth.
The stars are ______part of the solar system.
Answer:
The theory of Copernicus contained six hypotheses:
The sun is at the center of the planets.
The Earth is one of the planets.
All the planets orbit around the sun.
Each planet revolves around the sun in its own orbit and at different distances.
The moon orbits around the Earth.
The stars are not part of the solar system.
Explanation:
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How does DNA fit inside the nucleus of a cell?
1. DNA is a short molecule
2. DNA is tightly coiled into chromosomes
3. only part of the DNA fits in the nucleus
4. each nucleus contains only one gene
Answer:
2
Explanation:
DNA is tightly packed up to fit in the nucleus of every cell. As shown in the animation, a DNA molecule wraps around histone proteins to form tight loops called nucleosomes. These nucleosomes coil and stack together to form fibers called chromatin
Answer:
DNA is tightly coiled into chromosomes
Explanation:
Other answer is correct
All igneous rock forms from cooling lava/magma, despite this, not all igneous rocks look the same. For example, some igneous rocks, like granite, have large crystals. The best explanation for this is
Answer:
depends on the mineral, metal, and compression content
Explanation:
without these variables we wouldnt have the different compositions and varieties of stones.
why most plants cannot survive in deserts?
Answer:
maybe beacuse there not enough water and its too hot the sun will dry them up
Explanation:
Answer:
Because the ground is not fertile.
and there is too much of sunlight.
Why did land animals evolve back to aquatic environments?
Answer:
Life on Earth began in the water. So when the first animals moved onto land, they had to trade their fins for limbs, and their gills for lungs, the better to adapt to their new terrestrial environment. ... In air, eyes can see much farther than they can under water.Explanation:
Answer: Life on Earth began in the water. So when the first animals moved onto land, they had to trade their fins for limbs, and their gills for lungs, the better to adapt to their new terrestrial environment. ... In air, eyes can see much farther than they can under water. Tetrapods evolved from a group of organisms that, if they were alive today, we would call fish. They were aquatic and had scales and fleshy fins. ... Between 390 and 360 million years ago, the descendents of these organisms began to live in shallower waters, and eventually moved to land.
Explanation:
Oak Trees drop their leaves each fall and grow new loaves each spring within an oak tree population, there can be variation in when the new leaves sprout What advantage to the oak trees have by
sprouting leaves the soonest?
They can reproduce more quickly.
B They receive the most sunlight
c They can store more water.
D. They can grow deeper roots
Answer:
Awnser b
Explanation:
What is chlorophyll
Answer:
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⏩ Chlorophyll is the green pigment present in plants that helps in photosynthesis.
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ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ
# ➳ GuMiHo ࿐
The digestive system contains a variety of parts that perform specific functions within the body. The small and large
intestines have some similarities and some differences. Which function is only performed in the small intestine?
O water absorption
O vitamin absorption
O mineral absorption
O production of chyme
Answer:
d
Explanation:
Answer: d
Explanation:
If a skin cell of a dragon has 24 chromosomes, how many chromosomes are in a gamete of the dragon?
Answer:
meiosis
By the end of meiosis, the resulting reproductive cells, or gametes, each have 23 genetically unique chromosomes. The overall process of meiosis produces four daughter cells from one single parent cel
Explanation:
took test on edge
during photosynthesis,an energy transformation take place.which one of these happens during photosynthesis
Answer:
In a broader sense, photosynthesis, including CO2 anabolism, can be divided into several steps: i) photoelectric charge isolation using photon energy (conversion to electrical energy), ii) fixation of electrical energy in the form of chemical energy (ATP synthesis), and iii) chemical reactions involving ATP (fixation ..
Explanation:
WhiWhich of the following statements about traits is true?
A. All organisms within a population will have the sametraits.
B.A trait that is helpful in one environment will benefit organisms in all environments.
C. Organisms with helpful traits are more likely to survive and pass those traits on to their offspring.
D. An organism cannot have traits that would help it survive in environmental conditions that are different from the conditions of its habitat.
Answer:
C
Explanation:
Survival of the fittest
Answer:
I believe the correct answer is
C. Organisms with helpful traits are more likely to survive and pass those traits on to their offspring.