The trophoblast is mostly responsible for forming the placental tissue. The trophoblast is the outer layer of the blastocyst.
What is the trophoblast responsible for forming?Trophoblasts are cells forming the outer layer of a blastocyst, which provides nutrients to the embryo, and develops into a large part of the placenta.
They are formed during the first stage of pregnancy and are the first cells to differentiate from the fertilized egg.
Thus, The trophoblast is mostly responsible for forming the placental tissue.
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What is an acid?
A. a compound that releases OH- in a solution and has a higher concentration of OH- than H+
B. a compound that releases hydrogen ions in a solution and has a higher concentration of H+ than OH-
C. a compound releasing the exact same amount of OH- and H+ into a solution
Answer:
so the answer would be B
Explanation:
A substance that has more number of H+ ions than OH– ions is called acid.
Producers _____.
cannot make their own food
get their energy from the sun
release carbon dioxide as a waste product of photosynthesis
transfer 100 percent of their energy to the consumers that eat them
Answer:
"Get their energy from the sun!"
Explanation:
Producers (plants, for example) make their own food and energy with some help from the sun!
what is a group of organisms with exactly the same traits called
Answer:
the group of organisms with exactly the same traits is called species
define open and close type of circulatory system which is found in men
Open Circulation:
Open circulatory systems are common to most arthropods and mollusks. They have a heart that pumps blood into a hemocoel. The blood then diffuses back into the blood vessels.
Tissues tend to be surrounded by blood, and the blood flows freely throughout the body tissues. In this type of circulatory system, blood tends to be sluggish because it is diffusing rather than readily being pumped through vessels.
Animals with an open circulatory system tend to be small organisms, so the blood doesn’t have far to travel. These animals typically have low metabolisms. They don’t tend to need quick energy or immune defenses.
Closed Circulation:
In a closed circulatory system, the blood stays within blood vessels. In this way, blood is kept separate from body tissues. This system has a heart that pumps blood through a continuous circulation pattern. As such, the blood tends to be pumped at a higher pressure.
In organisms with a closed circulatory system, the blood does not fill body cavities. Many vertebrates, such as humans, have a circulatory system known as the cardiovascular system and a secondary system known as the lymphatic system.
Animals with a closed circulatory system tend to be larger than those with an open circulatory system—consider, for example, an elephant versus a grasshopper. This type of system can transport blood to extremities while maintaining a higher blood pressure than the open circulatory system.
There are several different heart configurations for an animal with a closed circulatory system. Most mammals have a four-chambered heart, which separates the oxygenated blood from the deoxygenated blood. A fish has a two-chambered heart, which pumps blood directly to the gills to become oxygenated and then throughout the body. Amphibians have three-chambered hearts, where oxygenated and deoxygenated blood mix within the heart before being pumped to the body.
how many national parks are in the u.s
Answer:
the us has 63 national parks, which are congressionally-designated protected areas operated by National Park service, an agency of the department of the interior.
How does the exchange of oxygen and carbon dioxide occur in the lungs and tissues ?
Answer:
Gas exchange happens in the alveoli in the lungs and the capillaries that envelop them. When you inhale oxygen, this one moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli. In simple words the exchange comes from the inhalation and exhalation of gases
What type of rock is most likely to contain a index fossil within it?
Answer:
I think it's sedimentary rock
What Is the major difference between coal and oil?
Answer:
Coal is decayed and compressed ancient plants while oil is ancient algae deposits. Coal is dry land and oil is wet lands
Explanation:
For the following isotopes that have missing information, fill in the missing information to complete the notation (a) 3414x1434x (b) 36xpx36p (c) 57xmnx57mn (d) 12156x
Isotopes are the species having equal range of electrons and protons however distinct range of neutrons.
What are atomic no.?
Atomic range is the range of electrons gift withinside the atom of the detail.Atomic mass is the range of protons and neutrons gift withinside the atom of the detail.
The widespread illustration of an detail is as X A Z.Where A is the atomic range, X is the image of the detail and Zis the atomic mass of the detail.The atomic mass of the detail is written after the hyphen.The atomic mass is 34 and atomic no. is 34 is silicon.Atomic no. is 15 then the values of x is also 15.Atomic mass is 121 and no. is 56 for barium.\Read more about the isotopes :
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During the notation of isotopes, Atomic number (Z), and atomic mass (A) are used distinctly.
What do you mean by Isotopes?Isotopes may be defined as a member of a family of an element that all have the same number of protons but different numbers of neutrons.
[tex]_14X^3^4[/tex], indicates that atomic number is 14, while atomic mass is 34, where X is Silicon. [tex]_XP^3^6[/tex], indicates that the element is Phosphorus, atomic mass is 36, while X is 15 which is atomic number. [tex]_XMN^5^7[/tex], indicates that the element is Manganese, atomic mass is 57, while X is the atomic number which is 25. [tex]_5_6X^1^2^1[/tex], indicates that the atomic number is 56, while the atomic mass is 121, where X is Barium.
Therefore, it is well described above.
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A person with a(n) _____ case of tuberculosis (TB) will test positive for the bacteria but will not show signs of the illness and cannot communicate the disease to others.
A person with a(n) epidemic case of tuberculosis (TB) will test positive for the bacteria but will not show signs of the illness and cannot communicate the disease to others.
What is tuberculosis?Mycobacterium tuberculosis is the bacteria that causes tuberculosis (TB). It is disseminated when a person with active tuberculosis in their lungs coughs or sneezes and someone else inhales the TB bacteria-laden droplets.
Tuberculosis is a global pandemic diseases. he didnt shows so much sign because the disease symptoms might be on starting stage.
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The blood does all of the things below except one. Which one does the
a. Carries oxygen to all the cells
b. Delivers glucose to all the body's cells.
c. Break down food
d. Helps the body to fight disease with white blood cells
Answer:
C break down food.
Explanation:
The blood does carry oxygen and delivers glucose. It also helps fight disease with white blood cells
so the only option left is C. Break down food; which the digestive system does.
Where do the storms hit the hardest in europe?
Answer:
The effects of tropical cyclones in Europe and their extratropical remnants include strong winds, heavy rainfall, and in rare instances, tornadoes or snowfall. There are only two modern cyclones officially regarded as directly impacting mainland Europe while still fully tropical or subtropical: Hurricane Vince in 2005, which struck southwestern Spain as a tropical depression; and Subtropical Storm Alpha in 2020, which made landfall in northern Portugal at peak intensity. Hurricane Debbie in 1961 may have still been tropical when it made landfall in northwestern Ireland, but this is disputed.[nb 1] In 1842, it is believed that a hurricane struck Europe.
In eukaryotic cells, translation occurs in the ________.
Answer:
The cytoplasm.
A car travels 10 km in 15 minutes. What is the average speed of the car?
what happens to water and dissolved minerals after they move across the epidermis of a root
Answer:
it will dissolve
Explanation:
CARRY ON LEARNING
End of semester test, Plato Biology A 6.0 help please.
Plato biology
Plato biology is denoted by great greek philosopher PlatoHis full name is platonon He belonged to AthensHe was born in ancient Greek periodCardiac muscle is striated.
Why is this beneficial?
A. because striated muscle has digestive enzymes, allowing it to
break through clogged arteries
B. because striated muscle tires easily
C. because striated muscle is voluntary, allowing you to stop your
heartbeat if necessary
D. because striated muscles can be trained, allowing you to
strengthen your heart with exercise
Answer:
D. because striated muscles can be trained, allowing you to strengthen your heart with exercise
Explanation:
Striated muscles convert chemical energy into physical work. You can make your striated muscles stronger with exercise. This helps the heart perform its function better and more efficiently.
Striated muscle does not have digestive enzymes and does not play a role in digestion. Striated muscles are very strong, and besides, that doesn't show why its beneficial anyway. It is impossible to voluntarily stop your heartbeat. If you did, you'd die.
Therefore, the best answer is D.
hope this helps!
The wide variety of organisms present in coral reefs and their complex relationships make coral reef preservation an important priority. Please select the best answer from the choices provided T F
Answer:
TRUE
Explanation:
All organisms work together to make the reef dynamic and complex entity.
Sperm are produced in the __________ by a process called ______.
a. testes, spermatogenesis
b. scrotum, spermatogenesis
c. epididymis, spermatogenesis
d. testes, epididymis
Answer:
a. testes, spermatogenesis
Explanation:
The testes are responsible for making testosterone, and for producing sperm.
Spermatogenesis is the process of sperm cell creation and development. When this process comes to the end, sperm is kept in the epididymis.
Explain what invasive species are in scientific reasoning
Answer:
An invasive species is an introduced, nonnative organism (disease, parasite, plant, or animal) that begins to spread or expand its range from the site of its original introduction and that has the potential to cause harm to the environment, the economy, or to human health.
Explanation:
Technology allows farmers to:
A) use less water.
B) spray fewer pesticides.
C) increase crop yields.
D) All of these choices are correct.
Read a quotation by New York Senator William Marcy. To the victor belong the spoils of the enemy. Based on this quotation, William Marcy could best be described as a Jackson historian. a Jackson rival. a Jackson opponent. a Jackson supporter.
Answer:
William Marcy could best be described as a Jackson supporter.
Explanation:
Based on this quotation, William Marcy could best be described as a Jackson supporter, William Marcy's support for Andrew Jackson's political stance, hence option D is correct.
What is a quotation by New York Senator William Marcy?This claim demonstrates William Marcy's support for Andrew Jackson's political stances. In this context, the term "spoils" refers to advantages that were acquired as Andrew Jackson gave his loyalists posts in the administration. When Marcy made this remark, he was really supporting one of Jackson's appointees.
Marcy is definitely an Andrew Jackson supporter since he is trying to argue that people who backed him should be the ones to gain from his government.
Therefore, William Marcy's support for Andrew Jackson's political stance, hence option D is correct.
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Which statement best describes the effect of texture on absorption of radiant energy?
Rough and smooth surfaces do not absorb energy.
Rough and smooth surfaces affect the absorption equally.
Rough surfaces absorb more energy than smooth surfaces.
Rough surfaces absorb less energy than smooth surfaces.
Rough surfaces absorb more energy than smooth surfaces because of its irregular shape and low reflectance.
Describes the effect of texture on absorption of radiant energy?
Rough surfaces are better absorbers as well as emitters of heat energy than smooth surfaces because smooth surface is a good reflector and a poor absorber so its emissivity is low.
So we can conclude that Rough surfaces absorb more energy than smooth surfaces because of its irregular shape and low reflectance.
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Answer:C on edge 2023
Explanation:
explain how the fossil record provides evidence for the idea of natural selection
Fossil records provide evidence of natural selection because one can see what species and what type of species (specifically what type of special trait the species had) reproduced and lived for longer.
For example, we have 5 different fossils of the same animal;
1. Lived about 45 years; had long legs that made it run faster - 5 offspring
2. Lived about 8 years; had short and stubby legs, was very slow - 0 offspring
3. Lived about 67 years; had long legs that made it run faster and a good nose - 8 offspring
4. Lived about 40 years; had a good nose and normal legs - 6 offspring
From all of that information you can see that the prefered trait was having longer legs and a good nose survived and reproduced multiple time, you can also see that the organism that had short legs did not survive for long and did not reproduce.
The Punnett square predicts the ratio of genotypes in the offspring, based on the genotypes of the parents. The Punnett square below examines the chance of offspring having freckles, which is a dominant trait..
Answer:
75 percent
Explanation:
ANSWER:
75% of the offspring will have freckles according to the unit square prediction.
This is due to the dominance of dominant gene present in one of those parents. This is shown in their off springs, general the ratio of dominant to recessive is 3:1.
EXPLANATION:
Punnett square method is a square which is helpful in detecting out the genotype of the off springs. This method shows the probability of offspring having a particular genotype.
It is a summary of maternal alleles with paternal alleles. This is a common method used by all the biologist for predicting about the offspring genotype.
Robert Hooke observed a slice of cork under a microscope. He saw what looked like “pores” or “cells” in it. Hooke can assume that the cork is most likely - Answer F A man made material G A type of living organism H A type of mineral J A petroleum based produc
Answer:
A type of living organism
Explanation:
I am in Biology and we went over this
suggest to the government,proper and pratical ways to control waste pastic in the country
Identify the limitations of the carbon model(s) in accounting for all of
Earth's carbon.
The carbon model is the flow and the movement of the carbon and its compound in the atmosphere. Climate change is the limitation of the carbon model.
What is climate change?A climate change is a variation in the weather and the climate pattern due to a change in temperature and other atmospheric factors. It will lead to a transformation in the flow of carbon in the environment.
Increased carbon in surroundings increases temperature and results in a change in seasons and humidity levels, leading to changes in the rainfall.
Therefore, climate change is the limitation of the carbon model.
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Which biome would be found furthest north?
Answer:
an artic tundra
Explanation:
What do we get from cereals, pulses, fruits and vegetables?
Answer:
Cereals give carbohydrates which provide energy.
Pulses give proteins which build our body.
Vegetables and fruits provide vitamins and minerals.
Answer:
Cereals give carbohydrates which provide energy.
Pulses give proteins which build our body.
Vegetables and fruits provide vitamins and minerals.
