Answer:
The correct answer is -
8. They played the songs of medium ground finches and cactus finches through a loudspeaker at different times, when individuals from both species were present, to see which species responded to each song.
9. Males only came to the loudspeaker when the song of their own species was being played.
Explanation:
To test the hypothesis that differences in finches song they sing keep these finches to breeding from other members of finches, Grant should play the different songs of both medium ground finches and cactus finches one by one in loudspeaker and see what members of finches respond on what song.
It will show that cactus fiches breed only on their songs and medium ground finches on their song if the hypothesis is true. Male of each species respond to their songs only and not on other song played on loudspeaker
One out of seven people on Earth depends on fish
as a protein source. What could happen if warming waters have a
similar effect on other stocks of fish?
Answer:
Some very sensitive species might die. Others may flock to areas more habitable for them.
AB blood type illustrates the principle of
The AB blood type has both A and B alleles.This illustrates principle of co-dominance
What is the definition of galactic center and galaxy cluster ?
Answer:
The Galactic Center (or Galactic Centre) is the rotational center of the Milky Way galaxy; it is a supermassive black hole of 4.100 ± 0.034 million solar masses, which powers the compact radio source Sagittarius A*.
PLEASE HELP I HAVE AN EXAM !!!
With the aid of a diagram, show how secretion of cortisol is regulated at the primary, secondary, and tertiary levels
P.S. If you do not know the answer, could you please provide the link for the site where there is an answer. Appreciate your help !!!
Explanation:
Cortisol secretion is regulated by the hypothalamic hormone, CRH, and the pituitary hormone, ACTH, in the hypothalamus-pituitary-adrenal axis. Cortisol is known as a stress hormone involved in the response to physical and/or emotional stress.
what is the role of microorganisms in food preservation?
Answer:
Preservation usually involves preventing the growth of bacteria, fungi (such as yeasts), and other microorganisms, A number of methods of prevention can be used that can either totally prevent, delay, or otherwise reduce food spoilage.
Explanation:
I’ll give you BRAINLIEST :)
The graph here shows the relative change in energy level for the reactants and the products of photosynthesis. Given the energy levels modeled in the graph, which statement accurately compares the energy of the products and the reactants with regards to
photosynthesis?
A)Water and oxygen have the highest energy compared to glucose and
carbon dioxide.
B)
Glucose and oxygen gas have higher energy levels compared to water and
carbon dioxide.
C)
Glucose and water have the same energy levels compared to carbon
dioxide and oxygen gas.
D)
Glucose and oxygen have a lower energy level associated with them
compared to carbon dioxide and water.
Answer: The answer is B I just took the quiz
Explanation:
Glucose and oxygen gas have higher energy levels compared to water and carbon dioxide is accurately compares the products and the reactants with regards of photosynthesis.
What is Photosynthesis?Green plants and certain other organisms convert light energy into chemical energy through a process called photosynthesis. Light energy is gathered and utilised during photosynthesis in green plants to change water, carbon dioxide, and minerals into oxygen- and energy-rich organic molecules.
It is impossible to overstate the role that photosynthesis plays in sustaining life on Earth. There would soon be little food or other organic materials on Earth if photosynthesis stopped. The majority of life would vanish, and eventually, the atmosphere of Earth would contain almost no gaseous oxygen.
Only chemosynthetic bacteria, which can use the chemical energy of specific inorganic substances and are not reliant on the conversion of light energy, would be able to survive in such an environment.
Therefore, Glucose and oxygen gas have higher energy levels compared to water and carbon dioxide is accurately compares the products and the reactants with regards of photosynthesis.
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[20 POINTS!!!!!]
which scenario would lead to the biggest increase in rabbit population?
increase in food supply and decrease in predators.
increase in food supply and predators.
decrease in food supply and increase in predators.
decrease in food supply and predators.
The scenario that would lead to the greatest increase in the rabbit population is increased food supply and decreased predators.
What are predatory animals?Predatory animals are animals that feed on other animals. They occupy the top of the food chain and are therefore found in smaller numbers. Predators are usually large, agile and adapted for hunting. A good predator is not known just by its size.
With this information, we can conclude that the scenario that would lead to the greatest increase in the rabbit population is increased food supply and decreased predators.
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Which famous political
leader's death was
investigated using
samples of his hair?
Answer:
Napoleon Bonaparte
Explanation:
All samples were found to have similarly high arsenic levels, roughly 100 times that of living people whose hair was included in the analysis for comparison.
Describe what happened to the colored water and the pieces of paper after the holes were punched in the material covering the beaker
Answer:
The paper spreads over the surface of water and the colored water sunk to the bottom.
Explanation:
The paper hole punches were spread over the surface of the water in the large beaker due to lower density of paper as compared to water whereas the colored water had sunk to the bottom. Convection currents is the driving force that caused the pieces of paper to move over the water's surface. At the surface, the water cools and becomes more denser so the coloring sank toward the bottom of the beaker creating convection currents that will leads to the presence of paper on the surface of water.
You probably know that many types of birds migrate south for the winter. One reason that flocks fly south is to avoid extreme cold. What is another reason that birds have migration patterns?
Answer: Since someone answer got deleted im gonna recover!!
If you guys have the same test on USATESTPERP its C) There is les available food for the birds to eat. If you guys arent on USATESTPERP then here is the other answer
Birds migrate to move from areas of low or decreasing resources to areas of high or increasing resources. The two primary resources being sought are food and nesting locations.-----Thank you also the name is daimonds cuz someone stole the dimonds) name THANK YOU LOVE YOU GUYS! :3
Match the type of metamorphism to its cause. Impact ? Heat Contact ? Directed pressure Dynamic ? Meteorite Regional ? Surrounding pressure SUBMIT
Answer:
Contact Metamorphism - Heat
The heat is the main cause, cooling magma affects the rock adjacent to an intrusive body.
Dynamic Metamorphism - directed pressure
It takes place due to grinding two large blocks of rock in a fault zone which causes a directed pressure that leads to heat and the formation of these metamorphisms.
Regional - surrounding pressure
A heat and lithostatic pressure come from depth within the earth.
Impact - Meteorite
By collision of meteorite to earth very high amount of kinetic energy is converted instantaneously to heat and differential stress.
Rewrite as a simplified fraction. 1.5¯ = ?
Answer: 1 1/2
Explanation:
2. A certain recessive, lethal gene is carried on the X chromosome. (Lethal genes are those that result in death.) A man marries a woman who is hybrid for this gene. What sex ratio would be expected among the living children of this couple?
%Male
%Female
PLEASE CAN ANYONE HELP ME THIS IS MY THIRD TIME POSTING!
NO LINKS PLEASE THEY ARE TIRING
Answer:
The correct answer is : male : female = 1:2
Male percent = 33.33%
female percent = 66.66%
Explanation:
In this question, it is given that a lethal gene is carried by X chromosome which is recessive which means will cause death if both copies are recessive for this gene.
The cross between normal man and hybrid or heterozygous women
The gametes: XH and Y from man and XH and Xh from women where Xh is recessive letheal allele.
The cross:
XH Y
XH XHXH XHY
normal female Normal male
Xh XHXh XhY
Carrier female dead male
This explains that out of three offspring two will be females and one male. Thus the percentage will be:
Male : 1*100/3 = 33.33%
Female : 2*100/3 = 66.66%
Name one function of the respiratory system other than gas exchange?
Answer:
another function of respiratory system is
it allows to breathe
One trait a plant can have is either red leaves (R) or brown leaves (o). Another
trait is tall stems (7) or short stems (1). A plant used in a dihybrid cross has
the genotype RrTt. What is the phenotype of this plant?
A. Red leaves, short stems
B. Brown leaves, tall stems
C. Red leaves, tall stems
D. Brown leaves, short stems
Which is not true about amphibians
2. Many lack legs during their life cyce.
Most have developed a lateral line system,
Most depend on outside water sources to keep their body moist
Many spend part of there in the water and part of
Answer:
many lack legs during their life cycle
In a separate location, take notes from the sources you've identified. The notes will provide details for your presentation
While taking notes, you may want to use these reading strategies C. Write down one or two pieces of information per
topic that you intend to use in your presentation.
Topic
Chemical reactions of fossil fuels
Difference between biomass and fossil fuels
Comparing biomass with other renewable
energy sources
Making energy choices locally
Answer:
CH4 + 2O2 -----> CO2 + 2H2O.
Explanation:
CH4 + 2O2 -----> CO2 + 2H2O is the chemical reaction of burning of fossil fuels. The main difference between biomass and fossil fuels is that biomass is biological material which can be derived from living whereas Fossil fuel such as coal, oil and gas are derived from biological material. Biomass is renewable because a new crop can be grown after each harvest, and biomass is a low carbon fuel. Biomass is renewable just like other renewable energy sources because both can be used again and again. The energy choices locally occurs according to the availability of energy resources in that locality.
Population density is a measure of the number of individuals
per unit area.
A.True
B.False
On May 18,1980, Mount St. Helens in the state of Washington erupted with the force of a hydrogen bomb. The volcano had been dormant for over 120 years, but now 57 people were dead; forests and lakes were totally destroyed, including nearby Spirit Lake, which became a mud hole. The blast leveled trees in areas over 10 miles from the crater and ash deposits suffocated life on the mountain. However, within weeks, mammals that had taken shelter underground started to appear in the area, and now, over thirty years later, many areas of the mountain are colonized with a large variety of plant and animal life. How does an area move from a sterile, barren wilderness to one full of life
Answer:
The correct answer is - Ecological Succession.
Explanation:
Ecological succession is a change in the species or biodiversity over time by the increase in the vegetation or growth of the community. This takes place after a natural disaster or any event that causes nudation or complete removal of species or comunities from an area such as volcanic eruption.
It starts with nudation then invaded with primary successors and then ecological conditions lead to invading more species and the third stage would be competition and interaction between a component of the species and vegetation then stable.
HELP ME
Describe how the color of a person's eyes is determined.
Answer:
Variations in a person's chromosomes decide eye colour.
Explanation:
Effects of temperature on the permeability of Rhoea discolour leaf full lab report. Pdf
Answer:
The results of the former experiments of the author which showed that the permeability of protoplasm increases in light and decreases in the dark were confirmed by the investigations of several authors and by the results obtained in the present paper. 2. The results of investigators who endeavor to show that the permeability increases in light only for some substances, while it may decrease in light for other substances, and that the permeability of protoplasm of some plants increases in the dark while it is not changed by the change of illumination in other cases, are incorrect since the methods used by these investigators to determine the permeability were inexact or faulty
The image best illustrates which change? The image illustrates a human-induced environmental change. O pollution O wildlife hazard O eutrophication O non-sustainable harvesting
Answer:
B
Explanation:
i took the unit
Answer:
Yea I think it’s B too
Explanation:
HELP AG CLASS
A mycologist is a specialized plant pathologist dealing in soil bacteria.
True
False
Answer:
false
Explanation:
I think mycologist is about mushrooms and yeast.
Answer:
False
Explanation:
Mycology is the study of fungi, not soil bacteria.
4.3.2 Test (CST): Earth's Plates Question 4 of 6 The pale colors on the map show how likely it is that each area will experience a high-magnitude earthquake. The dark red and black dots show which areas have the highest human population densities. USGS B A А Most likely C pls help
Answer: Region C, in the California area
Explanation:
This area is at the highest risk for earthquakes according to the color key on the map (red being the most vunerable, green being the least), and has a high population density. Compared to other regions, citizens in region C should be most prepared for earthquakes.
Region C, in the California area will experience a high-magnitude earthquake.
What is Earthquake?
It's a sudden violent vibrations of high intensity of the ground which causes great destruction, due to movements within the Earth's crust.
Given area is at the highest risk for earthquakes ,according to the color key on the map and has a high population density. When compared with other regions, citizens residing in region C should be most prepared for earthquakes.
Thus, region C is most likely to have Earthquake.
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Please help i am giving brainliest
The nervous and endocrine systems both use a form of communication; the nervous system sends electrical messages and the endocrine system sends chemicals known as __________.
a. antibodies
B. hormones
C. enzymes
No dam links
.
Answer:
The answer is B.Hormones
The glands that make up the endocrine system produce chemical messengers called hormones that travel through the blood to other parts of the body.
During a muscle contraction, the muscle cell membrane becomes temporarily permeable to
a. acetylcholine.
b. sodium
ОООО
с. АТР.
d. calcium.
During muscle contraction, the muscle cell membrane becomes temporarily permeable to sodium (Option b is correct).
Muscle cells are excitable, which means that these cells change from a resting state to an excited state in response to stimuli.At resting (non-signaling) state, Na+ ions are found at a higher concentration outside of the muscle cell than inside the cell, whereas potassium (K2+) ions are found at a higher concentration inside the cell than out the cell.When a nerve transmits an excitable signal that a muscle cell, Na+ flows into the muscle cell, and simultaneously potassium (K2+) ions out of the cell.The influx of Na+ ions is caused by the opening of voltage-gated sodium (Nav) channels found in the membrane (sarcolemma) of muscle cells.In conclusion, during muscle contraction, the muscle cell membrane becomes permeable to sodium ions (Option b is correct).
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Please answer the questions that have “type here”
Earth science
Answer:
#4 - the lower the pressure the higher the altitude
#12- Light from the Sun passes through the glass roof to heat plants and the ground inside the greenhouse. These objects then emit infrared radiation, which is absorbed in the glass roof. Thermal energy is trapped in the greenhouse, keeping the building warm.
#13 - acid rain
#14- 10 and 25
#15- clouds, weather, etc
Explanation:
I had to find and watch the video to fill out the ones you put "type here". Hope my answers help you. And pls give me a Brainliest. Thank you.
1
Which of the following types of pollution can cause eutrophication in a body of water?
residential
construction
agriculture or all of the above
Many desert mammals have developed a nocturnal lifestyle. This means that during the day they sleep underground in their burrows, and they come out to eat and play at night. What is a good reason for a desert fox to show this pattern of behavior?
Answer:
A good reason why a desert fox shows this pattern of behavior is to protect themselves from cold conditions since at nighttime, it gets very cold in the desert!
Explanation:
Nocturnal is a type of animal behaviour shown when the animals are active at night time and inactive at daytime. Desert fox shows this behaviour so that it can avoid the hot daytime of the desert.
What is nocturnal behaviour?Nocturnal lifestyle is the behaviour adopted by animals that are active at night time and are inactive during the daytime. During the daytime, they rest in the cool burrows, holes and underground canals to prevent the loss of water and to protect themselves from the extremely hot environment.
The desert animals like desert foxes have adapted the nocturnal lifestyle to avoid the extreme heat during the daytime and sleep in their underground burrows. Instead, they come out during the night when it is cool in deserts to eat and play.
Nocturnal lifestyle is shown by the diurnal animals that rest and sleeps in the burrows, holes and cool places during the hot time of the day.
Therefore, the desert fox shows a nocturnal lifestyle.
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PLEASE HELP‼️ this is due in 5 mins.
A segment of DNA strand has the following bases:
TAC GAT
What is the complementary strand of mRNA?
A: UAG CAU
B: TAG CAT
C: ATG CTA
D: AUG CUA
Answer:
sorry if im lateeee. but its D!
Explanation: