1. Explain why testosterone can improve performance in sport.
2. Describe the role of oestrogen in the menstrual cycle.
Answer:
1How does testosterone enhance performance? Testosterone acts on muscle cells by binding to a specific receptor protein, the androgen receptor. Upon testosterone binding, the androgen receptor signals to the muscle cell to activate the pathways that trigger an increase in muscle mass, called muscle hypertrophy.
2The oestrogen causes growth and repair of the lining of the uterus wall. Oestrogen inhibits FSH. When oestrogen rises to a high enough level it causes a surge in LH from the pituitary which causes ovulation where an egg is released from the follicle (Day 14 of the cycle).
Which blome or ecosystem has a long dry season that makes the growth of trees difficult?
A. grassland
B. boreal forest
C.
D.
deciduous forest
benthic zone
Grassland biome or ecosystem has a long dry season that makes the growth of trees difficult
What are biomes?Biomes are large geographical area of land consisting of a particular community of living organisms which occur as a result of the prevailing climatic conditions of the area.
Several biomes exist such as grassland, deciduous forests, alpine forests etc.
Grassland biomes are made of organisms which have been adapted to limited rainfall and long dry season.
Therefore, grassland biome or ecosystem has a long dry season that makes the growth of trees difficult.
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Earth has a bulge near the Equator due to its rotational momentum.
True
False
Answer:
false because it happens of centripetal forceExplanation:
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HELP ILL MARK BRAINLIEST !!
Answer:
you were correct its 16 cups
Explanation: good job!
When fertilization occurs, one half of the dna comes from the ____ and one half from the ______
Answer:
mother.....father
Explanation:
mother.....father
Before using any chemical in the lab, why should one first read the Material Safety Data Sheet (MSDS)?
The MSDS provides information on safe handling of the chemical.
The MSDS explains where the chemical can be purchased.
The MSDS provides the chemical formula for the substance.
The MSDS describes how the chemical will react with other substances.
You should read the Material Safety Data Sheet (MSDS) first because MSDS provides information on the safe handling of the chemical.first alternative.
What is on the material safety data sheet?The MSDS lists the hazardous ingredients of a product, its physical and chemical characteristics (e.g. flammability, explosive properties), its effect on human health.
With this information, we can conclude that you should read the Material Safety Data Sheet (MSDS) first because MSDS provides information on the safe handling of the chemical.
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What are the differences in the internal structures of the cells pictured to the right? Check all that apply
Which component of Earth’s atmosphere is decreased due to photosynthesis?
Explain why T cells are more likely to develop into T cells than T cells
Answer:
plssssssszz I beg u
Explanation:
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Pls help meee!!!!!!!!!
Answer:
i think it is euless
Explanation:
not really sure but i have a feeling it is correct
The most abundant element in the atmosphere can also be found in?
white sugar and soy protein.
fruits and hydrogenated oils.
carbonated water and glucose.
beans and whey protein.
The most abundant element in the atmosphere, nitrogen, can also be found in foods such as beans and whey protein; option D
What is the most abundant element in the atmosphere?The most abundant element in the atmosphere is nitrogen.
Nitrogen is a major component of amino acids.
Amino acids are the building blocks of proteins.
Thus, nitrogen is abundant in protein-containing foods.
Beans and whey protein are protein-containing foods.
Therefore, the most abundant element in the atmosphere, nitrogen, can also be found in foods such as beans and whey protein.
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how are chimpanzees and sunflowers similar?
(im asking this cause i cant figure it out and im super confused and this is for my science class)
Answer:
They are similar because they are both related to each other.
Explanation:
cellular respiration release co2 and photosynthesis absorbs co2 these two reactions are part of which bio geochemical cycle
Answer:
On our dynamic planet, carbon is able to move from one of these realms to another as a part of the carbon cycle. Carbon moves from the atmosphere to plants. In the atmosphere, carbon is attached to oxygen in a gas called carbon dioxide (CO2).
Glycogen is an energy-storage molecule in humans. A hormone that is called insulin controls the storage of glycogen in the liver. Insulin is made up of amino acids.
Which statement correctly identifies the types of macromolecules that are described?
Glycogen is a protein, and insulin is a lipid.
Glycogen is a protein, and insulin is a protein.
Glycogen is a carbohydrate, and insulin is a lipid.
Glycogen is a carbohydrate, and insulin is a protein.
The statement "Glycogen is a carbohydrate, and insulin is a protein" correctly identifies the types of macromolecules that are described. Thus, the correct option is D.
What is the main function of Glycogen?The main function of glycogen is to control the release of glucose into the blood when the condition is glucose deficient. It is the liver that directly contributes to the release of glucose into the blood.
Insulin is a hormone that is made up of amino acids, hence it is a small protein that contains almost all structural features of proteins.
Glycogen is a complex carbohydrate that can easily and rapidly coverts the form of glucose into energy.
Therefore, the correct option for this question is D.
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Bioswales A) Traveling with more than one person in a single vehicle
Bioretention B) Natural channels designed to collect runoff and remove debris and pollution
Compost C) Collecting water into natural buffer areas of vegetation or grass
Carpool D) Organic material that can be added to soil to help plants grow
1-c, 2-b, 3-d, 4-a. is the correct sequence of this match the column answer.
What do you mean by carpool?Carpooling is the practice of sharing car rides so that more than one person can travel in the same vehicle and avoids any need for others to drive themselves to a destination. Carpooling decreases each person's travel costs, such as gasoline, tolls, and the stress of driving, by having multiple people use one vehicle.
Bioswales- Collecting water into natural buffer areas of vegetation or grass
Bioretention - Natural channels designed to collect runoff and remove debris and pollution.
Compost - Organic material that can be added to soil to help plants grow.
Carpool- Traveling with more than one person in a single vehicle.
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(10.03 MC)
What is a similarity between a plant's response to light and to gravity?
Answer:
Plants respond directly to Earth's gravitational attraction, and also to light. Stems grow upward, or away from the center of Earth, and towards light. Roots grow downward, or towards the center of Earth, and away from light. These responses to external stimuli are called tropisms
what occurs to the sugar levels within the leaves at night?
What are the two types of quantities scientists consider when examining something?
Answer:
The two types of quantities scientists consider when examining is Scalars and Vectors
you transcribed dna to make
Answer: mRNA also known as messenger RNA
Explanation:
The data show the number of pieces of mail delivered to a single home address each day for three weeks.
4, 0, 2, 6, 1, 0, 3, 4, 0, 2, 4, 1, 5, 2, 3, 1, 1, 2
The data show the number of pieces of mail delivered to a single home address each day for three weeks.
4, 0, 2, 6, 1, 0, 3, 4, 0, 2, 4, 1, 5, 2, 3, 1, 1, 2 Which statement is true about a graph representing the data? Check all that apply.
The number line of a dot plot would start at 1.A dot plot would show 7 points for numbers greater than 2.The intervals on a histogram should be 0 to 2, 3 to 4, and 5 to 6.A histogram would have a maximum of 7 bars.A histogram should not show a bar that includes 0 pieces of mail.A dot plot would show 7 points for numbers greater than 2.What is histogram?
Histrogram is refer to as diagram made up of rectangles whose size is related to a variable's frequency and whose width is equal to the class interval.
Answers:
4.0.2.6.1.0.3.4.0.2.4.1 2.21
10 for 3 days for 4 days 2 for 4 days. 3 for 2 days 4 for 3 days 5 for 1 day 6 for day in a graph.
1. Statement 1 false because It should start at O.
2. Statement 2 true because 7 points for numbers greater than 2 are Greater than 2 3 4 5 6
3. Statement a false because it should be a 2.
4. Statement 4 true because there are 2 numbers. 2.1.2.3456
5. Statement 6 false because it should show 3 bars at o.
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Cell division involves
O none of these
O cytokinesis
O mitosis
O mitosis and cytokinesis
this is a simple diagram of a food chain:
producers --> herbivores --> carnivores --> top carnivores
if all the carnivores die out, why does the number of producers decrease?
i'm not sure but what im thinking is, well if carnivores die, then not many herbivores will die, therefore there isn't that natural soil fertilizer due to the dead bodies.
Explanation:
By all the carnivores, I assume it means regular and top carnivores. This will let the herbivores live longer which means they eat more food, food being producers causing producer numbers to fall drastically
ANSWER ASAP
Charles Darwin’s findings were pivotal to the formation of the theory of evolution. He noted that the Galapagos Islands, which are located about 1,000 kilometers away from South America, were made up of different types of finches. These species were all believed to have evolved from a species on the mainland, but they developed different adaptations to survive in their environment. Based on this information and the image, answer the following questions.
Answer:
What is the Galapagos Islands in Ecuador the site of Darwin's note on?
Darwin first came to the Galápagos in 1835, on a ship called the HMS Beagle. His observations of wildlife on the island inspired his theory of evolution by natural selection
The picture shows a model of a cell.
What is the main function of the parts labeled X'in the model?
A. To use energy from sunlight to make sugars
B. To hold and protect the cell's DNA
C. To store enzymes that break down food
D. To provide cells with energy for their activities
Answer:
To use energy from sunlight to make sugars(foods)
Which of the following is a negative consequence of the application of scientific knowledge? a. industrial pollution b. increased life expectancy c. technological developments d. new energy sources Please select the best answer from the choices provided O A Ов C OD?
Industrial pollution is a negative consequence of the application of scientific knowledge. Thus, the correct option is A.
Why industrial pollution has been increased?Increasing air and water pollution, as well as increased consumption of fossil fuels, occurred from the use of chemicals and fuel in manufacturing resulted in pollution. Acid rain has been increased which is a phenomena that occurs when pollutants are discharged into the sky and subsequently fall back to earth as precipitation as a result of coal combustion.
Science and technology advancements have resulted in significant pollution and degradation of the human environment. Pollution from industries, factories, and locomotives pollutes the air, causing acid rain, global warming, and ozone layer depletion.
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I am sometimes called your "windpipe." When you breathe.
air travels through me to your lungs. What am I?
Answer:
Trachea
Explanation:
match each hyposthesis for how the moon formed with the statement that best descibes it
Giant Impact Theory: The Moon was formed by a collision between Earth and a planet the size of Mars.
Colliding planetesimal Hypothesis: Planetesimals collided and merged to form the Moon.
Capture Hypothesis: As it passed past, Earth's gravity locked the Moon into orbit.
Accretion Hypothesis: The Moon was produced from the same material cloud that created the Earth.
According to scientists, the following are the recognized theories of lunar formation:
What is giant impact theory?According to this idea, a Mars-sized object named Theia collided with Earth, leaving a large portion of the planet to float in space, eventually forming the Moon. This is the most widely accepted idea of all since the Moon is moving away from Earth and its rocks are fairly similar to those of Earth.
1: According to this idea, the Moon was born somewhere else and was drawn into Earth's orbit by its gravity as it passed by.
2. Capture Hypothesis: According to this idea, the Moon and Earth arose from the same cloud of material at the same time.
3. Accretion Hypothesis: According to this idea, a vast number of small rocky objects known as planetesimals crashed and merged over a long period of time.
4. Colliding planetesimal Hypothesis: According to this idea, the Moon was formed by a huge number of small rocky objects known as planetesimals colliding and combining over a long period of time.
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Explain why the development of the seed was an important event in the evolution of
vascular plants.
The development of the seed was an important event in the evolution of vascular plants because it allowed plants to disperse their offspring far away.
What is plant adaptation?Plant adaptation refers to the different evolutionary features that emerged in the plant kingdom that allow plants to survive and reproduce.
Seeds are a fundamental evolutionary adaptive feature that enabled vascular plants to disperse their genes over longer distances.
In conclusion, the development of the seed was an important event in the evolution of vascular plants because it allowed plants to disperse their offspring far away.
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deserts savannas and taigas are all examples of what biome.
Answer:
Terrestrial Biome Examples. Terrestrial biomes include tropical rainforests, temperate forests, grasslands, deserts, tundra, taiga, savanna and chaparral.
Explanation:
Answer:Terrestrial Biome
Explanation:im just smart like that you feel me
Describe and account for the relationship between the two population growth curves between hares and lynx.
Answer:
The lynx's principal food source is the snowshoe hare. These two species' population cycles are intertwined. When hares are abundant, lynx consume almost nothing else and kill two hares every three days. When hares are sparse, lynx eat mice, voles, squirrels, grouse, ptarmigan, and carrion.