Answer:
Explanation:
The flatworms are acoelomate organisms that include many free-living and parasitic forms. Most of the flatworms are classified in the superphylum Lophotrochozoa, which also includes the mollusks and annelids. The Platyhelminthes consist of two lineages: the Catenulida and the Rhabditophora. The Catenulida, or “chain worms” is a small clade of just over 100 species. These worms typically reproduce asexually by budding. However, the offspring do not fully detach from the parents and therefore resemble a chain in appearance. All of the remaining flatworms discussed here are part of the Rhabditophora. Many flatworms are parasitic, including important parasites of humans. Flatworms have three embryonic tissue layers that give rise to surfaces that cover tissues (from ectoderm), internal tissues (from mesoderm), and line the digestive system (from endoderm). The epidermal tissue is a single layer cells or a layer of fused cells (syncytium) that covers a layer of circular muscle above a layer of longitudinal muscle. The mesodermal tissues include mesenchymal cells that contain collagen and support secretory cells that secrete mucus and other materials at the surface. The flatworms are acoelomates, so their bodies are solid between the outer surface and the cavity of the digestive system.
The rate of weathering depends upon the area's
a oxygen
b. climate
C.
water
d soil
Please select the best answer from the choices provided
0 A
B
с
D
Answer:
D is the Right Answer.
Explanation:
what type of cells produce gametes,sperm, and egg cell
Answer:
They are also referred to as sex cells. Female gametes are called ova or egg cells, and male gametes are called sperm. Gametes are haploid cells, and each cell carries only one copy of each chromosome. These reproductive cells are produced through a type of cell division called meiosis.
Explanation:
Answer:
sex cells.
Explanation:
Female gametes are called ova or egg cells, and male gametes are called sperm. Gametes are haploid cells, and each cell carries only one copy of each chromosome..
Good luck.
42._________is cell division that forms two genetically identical cells.
a. fission
b. immunity
c. fertilization
d. vaccination
Answer:
the answer should be A. Fission
Which of the following activities depend upon the availability of supplies of freshwater?
a agriculture
b bathing
C drinking
d all of the above
Fresh water is found in glaciers, ponds, rivers, etc. The activities that depend upon availability of supplies of fresh water includes: agriculture, bathing, drinking, laundry etc.
What is freshwater?Freshwater is a source of water which is renewable. It is replenished by a process called water-cycle.
There are multiple uses of fresh water. Some can be listed as:
For irrigation in agriculture.Industrial use.Household uses.Recreational activity.Thus, the correct option is d.
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Which action would best demonstrate that a scientist is being creative?
using prior knowledge to solve problems
O requiring evidence and thinking logically
O taking a closer look at the natural world
O following strict rules when using human test subjects
Answer:
using prior knowledge to solve problems
Explanation:
Just took the test and it showed the correct answer.
Which statement best describes the significance of Carrie Chapman Catt to
the women's rights movement?
A. She advocated protecting women's rights in the original
Constitution
B. She successfully argued for women's suffrage before the Supreme
Court
C. She served as president of the National American Woman
Suffrage Association,
D. She fought to have women's rights included in the Fifteenth
Amendment
Answer:
C. She served as president of the national american woman suffrage association
Explanation: The Women's Rights movement both began the same time or during the Absolutism movement and it caused by women thinking they we are fighting for African Americans, so they began the women's rights movement.
The contribution of Carrie Chapman Catt to the women's rights movement is best summed up by the fact that she was president of the national American woman suffrage group. So, the correct option is C.
Who was Carrie Chapman Catt?Leading advocate for the Nineteenth Amendment to the Constitution of the United States, which granted women the right to vote in the country in 1920, was Carrie Chapman Catt. From 1900 to 1904 and 1915 to 1920, Catt presided over the National American Woman Suffrage Association.
Women believed they were struggling for African Americans, therefore they started the women's rights movement, which both started at the same time or as part of the Absolutism movement. The fact that Carrie Chapman Catt served as president of the nationwide American woman suffrage organization best captures her role to the women's rights struggle.
Therefore, the correct option is C.
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What enzyme is found in the gut of Aphids that gives this insect an advantage over other insects by being able to digests sap and fuel their life mechanisms?
Answer:
Symbiotica colonises the gut, salivary glands and mouthparts (including the stylet) of the pea aphid Acyrthosiphon pisum, providing a mechanism to transfer the symbiont into host plants.aphids spread between plants by flying or crawling. Aphids cause damage by sucking sap from new growth on plants. They tend to cluster at the growth end of plants and attach themselves to the soft, green stems.
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Describe the two fields of study comparative and molecular
Answer:Comparative anatomy :compares fossilised structures to living organisms and compares the limbs of different organisms
Molecular biology: Compares cells of organisms and compares the Genomes of organisms
Explanation: Answered and got it right
What is a complete protein?
A.
A complete protein is a food source that contains all the essential amino acids.
B.
A complete protein is a food source such as vegetables and legumes.
C.
A complete protein is any food source that contains at least one essential amino acid.
D.
All of the above
Answer:
A.
Explanation:
A.
A complete protein is a food source that contains all the essential amino acids.
A complete protein is a food source that contains all the essential amino acids.
COMPLETE PROTEIN:
Proteins are biological molecules that are structurally made up of monomers called AMINO ACIDS.Proteins are source of nutrients to the body as they are used for varying functions like building and repair of tissues etc. However, based on the amino acid content, proteins can be either classified as complete or incomplete. Complete proteins are food sources that consists of the nine essential amino acids. The body cannot synthesize essential amino acids on its own, and therefore, require external sources of them.Learn more at: https://brainly.com/question/24231901?referrer=searchResults
which choice below represents an organism with two recessive alleles
Answer:
B
Explanation:
Because it continues
How many pairs of chromosomes does a human have in their liver cells
Answer: 46
Explanation:
In a normal human lever cell there are 46 chromosomes, because liver cells are somatic, so they are diploids, thus they have a full set of chromosomes.
If the amount of carbon changed in one part of a closed ecosystem, what happened to the carbon in the rest of the ecosystem?
Explanation:
Since carbon cannot be produced or used up, the total amount of carbon in a closed ecosystem does not change
The total amount of carbon in a closed ecosystem will not change in this type of scenario.
What is Ecosystem?This is referred to as all the organisms and the physical environment with which they interact.
The total amount of carbon in a closed ecosystem will not change as it can't be used up but maintains a cycle.
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11. Question: Imagine 20 babies were born. 10 had blue eyes, and 10 had brown eyes. What traits do their parents probably
have? (Remember brown B is dominant to blue b). Use what you know about dominant and recessive traits to explain
your answer. Provide your answer using at least two complete sentences. Refer to the rubric below to see how you will be
evaluated.
Answer:
the ans is bb and Bb
Explanation:
if you look at this picture you will understand.
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How does the cell membrane control what comes in and out of the cell?
The cell membrane contains pores that let all molecules in and out of the cell.
The cell membrane does not let anything in or out of the cell.
The cell membrane contains small pores that filters in needed substance and filters out waste product.
The cell membrane does not let substance in or out of the cell.
Answer:
The cell membrane contains pores that let all molecules in and out of the cell.
Explanation:
I believe it is this one not positive though
Answer:
I think its C. The cell membrane contains small pores that filters in needed substance and filters out waste products.
Explanation:
Sorry if it wrong it just makes the most sense.
3. Psychologists like to experiment on other organisms in their immediate environment, so Jenny
decided to perform a few experiments on her kitty, Precious. Jenny had a little clicker that makes
a loud 'CLICK' sound. She walked around the house, randomly clicking it while Precious rested in
the living room. Then Jenny sat down with Precious, and used the flash on her camera to flash a
bright light at the same time she clicked. Precious blinked because of the flash, and looked mildly
annoyed. Jenny repeated this process with her 4 times, then clicked the clicker, without using the
flash. She still blinked!
Neutral Stimulus:
Unconditioned Stimulus:
Unconditioned Response:
Conditioned Stimulus
Conditioned Response:
Answer:
Unconditioned Stimulus : Bright flash
Unconditioned Response : Eye blink
Neutral Stimulus/Conditioned Stimulus : Clicking sound
Conditioned Response : Eye Blink
Explanation:
A hydrogen atom has 1 electron. How many bonds can hydrogen form? Question 7 options: 4 2 3 1
Answer:
1
Explanation:
Because n form only a hydrogen atom has 1 electron, it can form only 1 bond.
Which evidence supports the claim that Earth’s continents formed during Precambrian time?
Compaction caused rock to cool and rise to form pieces of crust.
Earth collided with a large object and threw material onto Earth’s surface. Collisions with comets added land masses to Earth’s surface.
Earth’s surface cooled, causing rocks to cool and harden.
Answer:
Earth’s surface cooled, causing rocks to cool and harden.
Explanation:
explanation
The evidence that best supports the claim is ; ( D ) Earth's surface cooled, causing rocks to cool and harden
The precambrian time is the period which the earth is believed to have begin its formation, because during this period there were rocks believed to have formed from the cooled molten state of the earth and the presence of oceans also believed believed to have been formed from the cooling of water vapor which was present in the atmosphere.
Hence we can conclude that the evidence that best supports the claim is Earth's surface cooled, causing rocks to cool and harden.
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Why do countries not convert from the use of oil to solar energy?
Solar energy is more difficult to use than oil to make electricity.
It requires more work to use solar energy to make electricity.
Solar energy is a limited resource.
It is more expensive to create solar energy than use oil for making electricity.
Answer:
It is more expensive to create solar energy than use oil for making electricity.
Explanation:
Solar energy is a renewable source of energy from the sun. It is the most powerful and eco-friendly source of energy, however, many countries still do not use this source of energy in creating electricity. This is because the technology behind using solar energy to create electricity is very expensive in comparison with the use of oil.
In as much as solar energy is always readily available everywhere and everyday (natural), building the technology to make it generate electricity is huge. Hence, countries stick to the use of oil, which is way cheaper to operate.
Which of the following is the best definition of niche?
A. A group of organisms that produce fertile offspring
B. A group of organisms that interact within an ecosystem
C. All of the resources a species uses within its ecosystem
D. The place where a particular plant or animal lives
Answer:
C.
Explanation:
A niche refers to the way in which an organism fits into an ecological community or ecosystem. How an organism interacts with it's environment. So, I believe the answer to be C.
Hope this helps. :)
The best definition of niche is the place where a particular plant or animal lives. The correct option is D.
What is a niche?A niche is a term used for a place where the organism lives comfortably, and the environmental conditions are available for them. They use the resources and interact with other organisms.
It is a place where plants and animals live together and interact with each other.
Thus, the correct option is D. The place where a particular plant or animal lives.
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brefly describe alternational of generations i.n plants. Be sure to include a description of what alternation of generations is, the names of the generations, and their chromosomes number
Answer:
2 brefly describe alternational of generations i.n plants. Be sure to include a description of what alternation of generations is, the names of the generations, and their chromosomes number
What is weather?
A. What’s happening in space at a time and place
B. What’s happening in our atmosphere at a time and place
C. The average weather over many years
D. The average temperature over many years
Answer:
The answer would be B.
Explanation:
Which of the following correctly describe magnetic field lines?
Answer:
The answer is B
Explanation:
I hope that help :)
Answer:
Actually it is all of them
Explanation:
Shivering and sweating are two techniques that mammals use to
a) adapt to the temperature
b) develop a rise in body temperature
C) maintain homeostasis
d) use excess energy
Answer:
c.maintain homeostasis
What's the main reason why cell specialization is important?
Question 12 options:
It allows multicellular organisms to perform many distinct functions.
It allows unicellular organisms to perform many distinct functions.
It generates totipotent cells.
It creates cells at a faster rate.
Answer:
It allows multicellular organisms to perform many distinct functions.
Explanation:
Cell specialization is important primarily because it allows multicellular organisms to perform many distinct functions. Cell specialization isn’t important in unicellular organisms, because it doesn’t occur. Cell specialization isn’t important primarily for creating cells faster, and it doesn’t generate totipotent cells. Rather, totipotent cells are the stem cell progenitors that allow cell specialization to occur.
It makes it possible for multicellular creatures to carry out a wide variety of unique roles. Therefore, option (A) is correct.
What is cell specialization?The transformation of a stem cell into a differentiated cell type is accomplished by a process known as cellular differentiation. Typically, the cell will transform into a type that is more specialized.
The primary reason why cellular specialization is so important is that it enables multicellular organisms to carry out a wide variety of diverse jobs. Because it does not take place in unicellular creatures, the process of cell specialization is irrelevant to their biology. The primary reason why cell specialization is not crucial is that it does not produce totipotent cells, nor does it speed up the process of making new cells. Instead, totipotent cells are the progenitors of stem cells, which are the cells that can differentiate into specialized cell types.
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Which places the types of clouds in correct order from most thick and puffy, to most thin and wispy?
A. cirrus, stratus, cumulus
B.stratus, cumulus, cirrus
C.stratus, cirrus, cumulus
D.cumulus, stratus, cirrus
Answer:
a
Explanation:
plants have the ability to make there own growth ______while heterotrophs must consume theirs.
Answer:
by producing it/photosynthesis
Explanation:
Plants produce their food for growth through a process called photosynthesis. This is the process of where where plants transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses.
Answer:
Encyclopedic entry. An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Because autotrophs produce their own food, they are sometimes called producers.
Explanation:
Which best describes the structure of DNA?
A. Nucleic acids arranged in a double helix
B. A retread with two sister chromatids
C. Chromosomes linked in a loop
D. Alleles held together by genes
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Which of the following is a function of plant roots?
A) Acts as an anchor to hold the plant in the soil
B) Water and nutrients enter the plants from the roots
C) Absorbs oxygen for respiration
D) All of the above are functions of roots
Answer:
D
Explanation:
The roots act as an anchor and take in minerals/nutrients while the roots also take in oxygen. But for the Water, the leaves, roots and stem take in the water so all 9f the above.
Igneous rocks are classified based upon their
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Which statement best describes black holes?
Black holes are the remnants of dead, massive stars
Black holes are the remnants of planets that broke up from moving to fast.
Black holes are young stars that have not yet begun to shine.
Black holes are theoretical objects and have never been found.
Answer:
the last one
Explanation:
D. Black holes are theoretical objects and have never been found.
