Answer:
Arteries = Transports blood away from the heart. They carry oxygenated blood away from the heart and to the body with the exception of the pulmonary artery that takes deoxygenated blood from the heart to the lungs to be oxygenated. They have large muscular walls to withstand the pressure of the heart beats and since there is such large pressure, they have smaller lumen compared to the veins as the pressure drives the blood forward.
Veins = Transports blood to the heart. They tend to carry deoxygenated blood to the heart except for the pulmonary vein. Large lumen and small muscular walls with valves. The large lumen is so that more blood can flow through the veins as there's less pressure which is also why there are smaller muscular walls. There are also valves in the veins to prevent the backflow of blood.
Capillaries = Allows gas exchange and waste diffusion into blood. It is also one cell thick to allow diffusion to happen efficiently and the small structure increases the surface area to volume ratio.
What does 100% humidity mean?
The air cannot hold any more water vapor.
The air can still hold a lot of moisture.
The humidity is low.
There are 100 kilograms of water vapor in the air.
Answer:
I think it's the first one, the air cannot hold anymore water vapour
Answer:
A. The air cannot hold any more water vapor.
Explanation:
Which of the following statements is true regarding cellular respiration and photosynthesis?
1. Cellular Respiration and photosynthesis both involve water
2 Cellular respiration and photosynthesis both use light to produce sugar
3. Cellular respiration and Photosynthesis both use light to produce energy
4. Cellular respiration requires light energy and photosynthesis requires chemical energy.
A. Statements 1 and 2
B Statements 1 and 4
C Statements 2 and 3
D Statements 3 and 4
a
Explanation:
cellular respiration and photosynthesis bothq iuse light sugar chemicals and both use water
A diploid cell turns into 4 haploid cells with no duplicated chromosomes. What did the cell go through?
A. mitosis
B. meiosis
C. budding
D. transfiguration
Answer:
B. meiosis
Explanation:
Meiosis is the process that produces our gametes. A cell that undergoes meiosis will divide twice resulting into 4 haploid daughter cells.
Which is
required for both anaerobic respiration and aerobic respiration?
•
oxygen
water
mitochondria
glucose
Answer:
oxygen
Explanation:
is it still 1810 or another year earlier or later
What is the normal pulse range for a child 2-5 years of age?
A) 80 to 160 bpm
B) 60-90 bpm
C) 60-100 bpm
D) 80-120 bpm
Answer:Children 1 to 2 years old: 80 to 130 beats per minute.
Explanation:
Mark buys 250 shares of stock in a fund with a net asset value of $25.17 and an offer price of $25.30. Mark wants to sell all of his shares when he can profit $1,000. If Mark sells his shares today, he would have proceeds of $7,300. Determine if Mark should sell his shares today and why.
a.
Mark should not sell his shares because he would have a loss rather than a profit.
b.
Mark should not sell his shares because he would not have as much profit as he’d like.
c.
Mark should sell his shares because he will make the profit he wants to make.
d.
There is not enough information given to know if Mark should sell his shares or not.
Answer:
B is the answer
Explanation:
I just took the test!
The other person is correct! The answer is B: Mark should not sell his shares because he would not have as much profit as he’d like.
------------------------------------------------------------
Have a great day and God bless! :D
How does the water chemistry change as carbon dioxide gas is dissolved in the ocean
water?
Answer:
Dissolved carbon dioxide reacts with water and dissociates into bicarbonate ion (HCO3-) and a hydrogen ion (H+)
Explanation:
Why is cloning so difficult? ASAP
Answer:
Scientists require two cells to clone an animal: an egg and a donor cell. The nucleus of the egg is removed and replaced with the nucleus of the donor cell. It can take 100 or more cloning attempts and just as many egg cells to finish the process for the animals we know how to clone.
Explanation:
Homeostasis plays a major role in the proper functioning of the body. It is regulated
by different mechanisms such as osmoregulation, thermoregulation, and chemical
regulation by different systems in the body like respiratory system, digestive
system, nervous system, and urinary system.
These systems maintain homeostasis in the human body by -
A releasing a stimulus when hormone levels increase or decrease
B decreasing the movement of blood to organs to maintain heart function
creating more proteins to code for cell repair
D increasing the rate of cell division to provide new cells
How are GM sugar beets different to normal sugar beets?
Answer:
A genetically modified sugar beet is a sugar beet that has been genetically engineered by the direct modification of its genome using biotechnology. Commercialized GM sugar beets make use of a glyphosate-resistance modification developed by Monsanto and KWS Saat.
Explanation:
hop it will help
Consider the aquatic phosphorus cycle. Phosphorus is the limiting nutrient for aquatic organisms. Decomposition naturally returns
phosphorus to the aquatic cycle, but phosphates from fertilizers, sewage and detergents can cause pollution in lakes and streams.
Over-enrichment of phosphate in freshwater can lead to which, when they die and decay, leads to
A)
a lower pH; acidification
B)
algal blooms; eutrophication
turbidity; decreased photosynthesis
D)
increased decomposition; poor growing conditions
Answer:
B
Explanation:
At school, i will offer my help to my teachers with__________________
The complete question:
At school, I will offer my help to my teachers with by relieving them of their teaching activities.
At the school, I will offer my help to my teachers with support by relieving them of their teaching activities.
What are the roles of the student to the teacher in a school setting?A school setting is an institution where formal education takes place. This dissemination of formal education is done by professional educationists popularly called teachers in high school to the students.
In a school setting, the role of the student to the teacher includes some of the following:
Maintaining order in the classroom when the teacher is teachingAssisting the teacher with the arrangement of booksArrangement of the tables and the chairs in the right order. etc.Therefore, we can conclude that at the school, I will offer my help to my teachers with support by relieving them of their teaching activities.
Learn more about a school setting here:
https://brainly.com/question/25930442
#SPJ4
describe 2 ways a red blood cell is adapted to carry oxygen in the human body
Answer:
They are small enough to fit through narrow vessels, have a thin membrane as well as a concave shape, allowing them to absorb gases like oxygen and such very easily.
What is the name of this apparatus that zandile set up the following apparatus to investigate how temperature affects transpiration rate
Potometer is the apparatus which was used to investigate how temperature affects transpiration rate.
What is a Potometer?This is also referred to as transpirometer and it measures the level of water uptake in a leafy shoot.
Increase in temperature will lead to transpiration which can be detected by using the potometer to measure the water level.
Read more about Potometer here https://brainly.com/question/9014885
#SPJ1
Carbon dioxide is called a greenhouse gas because it helps to trap heat from the Sun in Earth’s atmosphere. This keeps Earth’s temperature warmer than it would otherwise be. In this respect, how does carbon dioxide in the carbon cycle affect water in the water cycle?
A. It allows the oceans to contain more water than they would otherwise be able to. B. It leads to ocean water dissolving more salt than it has dissolved in the past. C. It enables more water to evaporate and enter the atmosphere. D. It causes more water to be frozen in ice caps at the poles
Carbon dioxide in the carbon cycle affect water in the water cycle in a way that it enables more water to evaporate and enter the atmosphere. (Option C)
How Carbon Dioxide Affects Water CycleCarbon dioxide molecules provide the greenhouse heating needed to maintain water vapor concentrations. When carbon dioxide concentrations drop, Earth cools, some water vapor falls out of the atmosphere, and the greenhouse warming caused by water vapor drops. Dissolving carbon dioxide in the ocean creates carbonic acid, which increases the acidity of the water.
Read more on Carbon Dioxide effect on Water Cycle:
https://brainly.com/question/17135130
#SPJ1
One of the most heavily planted crops at the time was red winter wheat. This crop has a maximum root depth of 5 feet. It is planted in mid-August and harvested around mid-May. How might the replacement of native species with this domesticated crop have contributed to the Dust Bowl
The replacement of native species with this domesticated crop increases the Dust Bowl situation.
What is the effect of domesticating crop to the dust bowl?The replacement of native species with the domesticated crop have high contribution to the Dust Bowl because farming of domesticated crop requires tillage which leads to dust bowl. Wind erosion occurs when the tillage practices are done.
So we can conclude that the replacement of native species with this domesticated crop increases the Dust Bowl situation.
Learn more about crop here: https://brainly.com/question/18243424
#SPJ1
Question 3 of 11
which three sentences describe how a wildfire can harm a forest
ecosystem?
Answer:
The wildfires can damage forests that remove carbon dioxide. The wildfires also emit carbon dioxide, and these damaged trees do not have the strength to remove the carbon dioxide from the air. So this causes well-known global warming, which is a bad sign and is harmful to the atmosphere. And on top of that, the wildfires inject soot and aerosols into the air, causing quite complicated effects on the environment's ability to warm and cool on a regular basis.
Wildfires can ruin not just forests, but our world.
If there's anything else I can do here, please let me know.
in Japan, food scientists have produced a type of watermelon that is square instead of
oval. It allows more watermelons to be stacked in the grocery stores. Scientists
have also developed a watermelon that is seedless that attracts buyers who prefer
not to have seeded watermelons. Corn is often genetically modified so that it is
resistant to specific diseases and pesticides
Genetically modified (GM) foods are the ones came from organisms whose genetic material (DNA) are altered as they do not occur naturally. Food shortage, cost, variety can make people support the GM foods, while, religious beliefs, allergy, and worrying about the food can limit the support for these foods.
What are the characteristics of GM foods?Genetically modified (GM) foods are those derived from organisms the ones genetic material (DNA) has been altered as they do not occur naturally.
Its characteristics are:
More nutritious food.Less use of pesticides.Faster growing plants and animals.Disease- and drought-resistant plants.As food shortage, cost, variety can make people support the GM foods, while, religious beliefs, allergy, and worrying about the food can limit the support for these foods.
Thus, the correct option is A.
For more details regarding genetically modified crops, visit:
https://brainly.com/question/21807373
#SPJ1
Atoms of isotopes of the same element contain the same number of
Atoms are the smallest unit of matter. Atoms of isotopes of the same element contain the same number of protons.
What are isotopes?Isotopes are atoms of the same element which have different numbers of neutrons but the number of protons and electrons remains same.
As the isotopes of the atom have the same number of protons, so, their atomic number will also be the same.
Thus, it can be concluded that atoms of isotopes of the same element contain the same number of protons.
For more details regarding isotopes, visit:
https://brainly.com/question/11680817
#SPJ4
by which process do organisms adapt and evolve?
Answer:
Natural selection
Explanation:
the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways.
Describe how a zygote with trisomy 21 is likely to
occur during fertilization.
Answer:
If the paired chromosomes fail to separate during meiosis in the female, then the resulting daughter cells will receive either 2 or no copies of chromosome 21. If the resulting egg with 2 copies of chromosome 21 is fertilized with a normal sperm, the resulting zygote with be trisomy 21
Explanation:
Why is it important for scientists to have a way to organize all living things? (You will
have to use your brain here…
Answer:
Scientists categorize living things in order to organize and make sense of life's tremendous diversity. Classification also assists them in comprehending how living things are related to one another.
Explanation:
brainliest pls
alr thank you have a awesome day
What bivalve was a keystone species in Iowa, making sure the water stayed clean and filtered?
The bivalve that was a keystone in Iowa, making sure the water stayed clean and filtered, is shellfish.
What are shellfish?Shellfish is a term used to describe the fishes that have exoskeleton and are used to eat.
The shellfish is divided into two groups:
Crustaceans: shrimp, prawn, lobster, etcMolluscan/ bivalves: oysters, clams, mussels, etc.So, the molluscan are believed to keep the water bodies clean
Thus, the keystone species is shellfish.
Learn more about shellfish
https://brainly.com/question/9612277
#SPJ1
What is the goal of humanity?
Answer:
to realize the Principle of Universality
How can scientists Maximize the production and efficiency of micro algae ?
Who give me the answer first and correct I will give brainliest
I need the answer ASAP
Answer:
by providing healthy nutritional source and put them in pure culture
I really need help it’s about the solar system to fill in the blanks and I really do not know what to do at all
After eating a lunch of a sandwich and chips, the carbohydrates from the sandwich changes the amount of glucose in the blood. How does the body maintain homeostasis?
The body will stay in homeostasis by shivering to help increase metabolism of the food ingested from the lunch.
The body will try to increase the level of glucose in the blood which decreases after eating a sandwich.
The body will try to stay in homeostasis by increasing the heart rate to increase the level of glucose in the blood.
The body will try to decrease the level of glucose in the blood which increases after eating a sandwich.
To maintain homeostasis the body will try to decrease the level of glucose in blood which increases after eating sandwich.
What do you mean by homeostasis?"It is a self-regulating process by which biological systems maintain stability while adjusting to changing external conditions."When a person eats food containing carbohydrate, the blood glucose level increases.
This in turn stimulate pancreas to secrete Insulin which converts glucose to glycogen to maintain normal blood sugar level(thus maintains homeostasis).
Hence, the body will try to decrease the level of blood which increases after eating a sandwich.
To know more about homeostasis here
https://brainly.com/question/3888340
#SPJ2
which human activity uses the most water?
a. transportation
b. irrigation
c. drinking
d. mining
Answer:
drinking is the activity uses the most water in human body
How do cytotoxic t-lymphocytes destroy infected cells?
Cytotoxic T cells kill their targets by programming them to undergo apoptosis. When cytotoxic T cells are mixed with target cells and rapidly brought into contact by centrifugation, they can program antigen-specific target cells to die within 5 minutes, although death may take hours to become fully evident.
How do T lymphocytes destroy infected cells?In cellular immunity, a killer T cell identifies and kills a virus-infected cell because of the viral antigen on its surface, thus aborting the infection because a virus will not grow within a dead cell.
Thus, Cytotoxic T cells kill their targets by programming them to undergo apoptosis.
To learn more about T lymphocytes click here:
https://brainly.com/question/12324561
#SPJ4