The digestive system stores and digests foods, transfers nutrients to the body, eliminates waste and absorbs water.
why are myxozoans actually a bad example of supposed evolution in action?
(I will give the best answer brainiest and extra points)
Explanation:
Myxozoans (phylum Myxozoa) are metazoan parasites utilizing invertebrate and (mainly) aquatic vertebrate hosts. They have in common with cnidarians the possession of virtually identical, highly complex organelles, namely the polar capsules in myxozoan spores, serving for attachment to new hosts and the nematocysts in surface epithelia of cnidarians, serving for food capture. Although myxozoan spores are multicellular, the simple trophic body forms of almost all species, reduced to syncytial plasmodia or single cells, reveal no clues to myxozoan ancestry or phylogenetic relationships. The myxozoan genus Buddenbrockia is one of only two known genera belonging to a clade which diverged early in the evolution of the Myxozoa. Today the Myxozoa are represented by two classes, the Myxosporea, containing all the better-known genera, which alternate between fish and annelids, and the Malacosporea, containing Buddenbrockia and Tetracapsuloides, parasitising bryozoans. The latter genus also infects salmonid fish, causing proliferative kidney disease (PKD). The enigmatic Buddenbrockia has retained some of its ancestral features in a body wall of two cell layers and a worm-like shape, maintained by four longitudinally-running muscle blocks, similar to a gutless nematode and suggestive of a bilaterian ancestry. Although some analyses of 18S rDNA sequences tend towards a cnidarian (diploblast) affinity for myxozoans, the majority of these studies place them within, or sister to, the Bilateria. The latter view is supported by their possession of central class Hox genes, so far considered to be synapomorphic for Bilateria. The simple body form is, therefore, an extreme example of simplification due to parasitism. Various hypotheses for the occurrence of identical complex organelles (nematocysts and polar capsules) in diploblast and triploblast phyla are evaluated: common ancestry, convergent evolution, gene transfer and, especially, endosymbiosis. A theory of the evolution of their digenetic life cycles is proposed, with the invertebrate as primary host and secondary acquisition of the vertebrate host serving for asexual population increase.
FIRST CORRECT GETS BRAINLIEST AND 25 POINTS
_____________________: Would be considered a pure element because ___________________________________________________________________________________________________________________________________________________________.
_____________________: Would be considered a mixture of elements because ___________________________________________________________________________________________________________________________________________________________.
_____________________: Would be considered a mixture of compounds because ___________________________________________________________________________________________________________________________________________________________.
_____________________: Would be considered a mixture of only one type of compound because __________________________________________________________
_____________________________________________________________________________.
Answer:
E would be considered a pure element beacuse there's only one type of atom
B would be considered a mixture of elements because there is more than 3 elements
C would be considered a mixture of compounds because there is more than 2 compounds
A would be considered a mixture of only one type of compound because there are 2 different atoms joined together
Which organelle of a cell contains its DNA? a) Mitochondria b) Membrane c) Cytoplasm d) Nucleus
Answer:
b po
Explanation:
kasi yan ang turo Ng teacher namin
Hope makatulobg
Which cricket got the mate in this comic?
A)The smartest and most resourceful.
B)The most attractive male.
C)The strongest singer.
Answer:
realistically
Its either
A)The smartest and most resourceful.
or
B)The most attractive male
as the singer would most likely get eaten
Explanation:
I it is most likely A tho so
A)THE SMARTEST AND MOST RESOURCE.
B)THE MOST ATTRACTIVE MALE.
C)THE STRONGER SINGER.
{ANSWER}➡A)THE SMARTEST AND MOST RESOURCE.
#CARRY ON LEARNING15. If a person feels pressure on her bladder, then she is experiencing -
o
A.)an external stimulus to stop drinking.
B.)an internal stimulus to drink more water.
C.)an external stimulus to release excess water.
D.)an internal stimulus to release waste.
Water, carbon dioxide, oxygen, and some other substances can pass through the cell membrane because...
Group of answer choices
they are organic.
they are small and nonpolar.
they are hydrophobic.
they are polar.
Answer:
its a
Explanation:
they are all organic
Which blood type would not be possible for children of a type AB mother and a type A father?
a. Type A
b. Type B
c. Type O
d. Type AB
Answer:
c. O
because no parent has o in their blood.
Explanation:
What is Newton's third law of motion
Answer:
His third law states that for every action (force) in nature there is an equal and opposite reaction.
Explanation:
The study of the connection of the roles of different animal systems is called
The connection between different animal systems is a part of ecology study, in which every animal plays a different role to balance the ecosystem.
What is ecology?In the ecology study of the interaction between organisms and their abiotic environment, different animal systems play different roles.
In a particular ecosystem, every organism is dependent on others to maintain a balanced life which affects its surrounding environment.
An animal system is a group of animals in a particular habitat that describe a particular species interaction in which an organism interacts with its surrounding environment.
Therefore ecology is the study of connections between different animal systems.
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Organ systems work together to meet the needs of the human body. How is the skeletal system related to the nervous system?
Answer:
The Skeleton forms a framework for the body and the joints of the bones hold the muscles together.Hence the muscles can move when there's an impulse from the brain (through nervous system.)
Describe a situation in which a bacteria-free environment would be desirable: not desirable:
desirable: When observing bacteria
not desirable: When eating food.
The United States uses about _______. of the worlds energy
Answer:
Here you go!
17%
Explanation:
Demand. With less than 5% of the world's population, the U.S. consumes almost 17% of the world's energy and accounts for 15% of world GDP.
Have a great day!
farmer plants the same crop in a field year after year. Every year there are months during which the field is left without any plants. The former notices a decline in soil quality during these months. What causes this dech
soil quality ?
Answer: A
Explanation: I think..
what are the five types of templements
Answer:
Site templates.
Snippets.
Navigation templates.
App templates.
Form templates.
Explanation:
Which of the following is NOT true regarding taproots?
A. Allows for the transport of sugars up the plant through the xylem.
B. The main root that grows down vertically allowing plants to penetrate deep into the soil
C. An advantage for plants growing in dry soils
D. Support and anchor plant to the soil
Answer:
A
Explanation:
Explain, using a named example, why many sex-linked diseases occur more frequently in men than women
Answer:
Because men have Y-chromosomes.
Explanation:
In women, the final chromosome is XX, but in men, it is XY. Because this Y gene is different, genetic disorders are typically linked to this chromosome. A mutation in the X chromosome is equally prevalent in the population, meaning that the Y chromosome makes a male more likely to have a disease because they are more likely to have a genetic disorder, due to having both an X and Y chromosome.
how does the digestive system interact with the musculoskeletal system
Translocator is to ER as _____ is to lysosome
Answer:
man complete the questions
What is
Age of fishes
Which one of the following requires the highest degree of metamorphism?
a. gneiss
b. shale
c. slate
d. schist
Answer: a. gneiss
Explanation:
Metamorphism can be defined as the synthesis or formation of minerals or rocks from the pre-existing rocks. This involves various physical and chemical processes. The physical processes include the application of heat and pressure. The chemical processes include the oxidation, reduction and other chemical reactions occurring within the rock. Gneiss is one of the highest grade of metamorphic rock. As it exhibit the coarsest grain size. Quartz, mica, and feldspar are the examples of gneiss.
how does an organism use the information in dna
Explanation:
DNA's instructions are used to make proteins in a two step process.
1st- Enzynes read the information in a DNA molecule and transcribe it into an intermediary molecule called messenger ribonucleic acid (mRNA).
2nd- Information contained in the mRNA molecule is translated into amino acids, which are the building blocks of proteins.
Explain how physical and chemical properties influence the formation of ocean current and the distribution of marine life
False answers will be reported but if your answer is good I will give it brainliest.
Physical and chemical properties influence the formation of ocean current and the distribution of marine life through the different features present.
What is Marine life?This is referred to as the animals, plants and other organisms which live in salt water sea and oceans.
Physical and chemical factors such as oxygen levels and light availability promotes the presence of of plants and animals as they are able to undergo photosynthesis and also respire thereby ensuring their increased growth and reproduction.
High ocean current also reduces the amount of organisms present in the marine life due to them being washed away to other parts and hindering their survival.
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CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION I WILL MARK YOU BRAINLIEST THANK YOU !!!
Answer:
Mercury :3
Explanation:
:3
Explain how the genetic disease called Sickle Cell Anemia is more prevalent in African- Americans compared to other races because of the Malaria Disease.
Answer:
Explanation:
This is because sickle cell disease is common in malaria dorminated area because their traits confers resistance to malaria. The red blood cells, which contain abnormal hemoglobin become sickle in shape after it has been affected by malaria parasite. Therefore, most American that have African ancestry are at high risk of
the disease because the African ancestry are carriers if this gene and are inherited by the Americans.
What challenges do researchers trying to breed fungus-resistant Cavendish bananas face?
The two diseases currently attacking banana crops around the world are known as Black Sigatoka and Panama disease. Both are caused by fungi species which grow inside banana organs, draining away their nutrients or reducing their ability to photosynthesise. These fungal parasites slowly starve the banana to death.
Explanation:
1
What gas do plants take in from the air for photosynthesis? (6.L.1.2)
Carbon Dioxide
Oxygen
Helium
Hydrogen
1
What does the length of night or dark periods control in flowering plants? (6.L.1.1)
Reproduction
Flowering
Smell
Color
What does the water molecule do in the Lithosphere during the Water Cycle.
Answer:It's a process that happens on a molecular level when the molecules of water are really energized and rise into the air.
Explanation:
The water comes out of the atmosphere and makes it to the surface
Water moves from the ground or oceans into the atmosphere through a process called evaporation.
PLEASE HELP! You have to figure out if there a advantage or disadvantage.
Answer:
Advantage, Disadvantage, Advantage, Disadvantage
Explanation:
Infecting a host easier is an advantage because they can reproduce more
Little diversity means they are killed more
Using little energy to produce means they can reproduce more
Not being able to adapt would lead to a less likely chance of survival
1. disadvantage
2.advantage
3.disadvantage
4.advantage
Explanation:
no need to explain
Scientific theories can be disproven or modified. True or false?
De
minor
The picture shows on ant infected with the fungus Cordyceps. An infected ant will move to an area that is favorable
for the growth of the fungus. The fungus will remain there while its mycelia replace the ant's tissues, causing death
and eventually releasing more spores that can Infect other ants.
Answer:
A
Explanation:
i just took test
They help regulate the population of the arthropods in the jungle.
What is Cordyceps?
A fungus called cordyceps is found in China's high mountain regions and feeds on specific caterpillars. It is occasionally employed as medication.
The majority of supplements use lab-made cordyceps. Despite the fact that cordyceps is occasionally referred to as a mushroom, the form of cordyceps created in a lab does not grow a mushroom.
By stimulating immune system cells and certain molecules, cordyceps may enhance immunity. In especially with lung or skin malignancies, it may also aid in the fight against cancer cells and reduce tumor size. Natural cordyceps can be pricey and difficult to get.
Therefore, They help regulate the population of the arthropods in the jungle.
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