Mary loves to grow flowers in her garden. She believes if she waters her plants with power-aid, then they will grow big and tall. Mary planted sunflowers, roses, and daisies. Sunflowers don't receive power-aid. After three weeks, Mary measures all three plants. The plant that received water grew the best. Which sentence states the hypothesis?
Answer:
The Power Aid didn't help the flowers grow at all because the vitamins in it is for humans.
Toxoplasmosis is a disease caused by the microscopic parasite Toxoplasma gondii.
The parasite usually infects mice, affecting their nervous system and causing them to
take unusual risks (such as running out in the open, and coming unusually close to
animals which may eat them). Scientists believe this is actually a way for the parasite
to reach its primary host – cats. When a cat catches and eats an infected mouse, the
Toxoplasma gondii enters its digestive system and steals nutrients from the cat.
Humans can become infected by Toxoplasma gondii through contact with cat feces.
Scientists now believe that Toxoplasmosis in humans can cause substantial changes
in mood and behavior, and may even be linked to certain types of depression. It is
estimated that 30-65% of people worldwide may be infected with Toxoplasma gondii.
a) (10 Points) From the story above, identify at least two different symbiotic
relationships involved in Toxoplasma gondii transmission and explain each.
24. Which process in humans does not use energy released from respiration?
A cell division
B. diffusion of oxygen
C. muscle contraction
D. protein synthesis
Answer:
Muscle contraction
Explanation:
Because it will be very hard for the respiration to release through human energy
Which of the following elements in the growth of a flowering bulb provides a grower with the greatest
flexibility of seasonal production, allowing the grower to target a particular calendar point for bloom time?
A. period from first growth to budding
B. period of dormancy between bloom and grow seasons
C. length of entire bloom period
D. time from breaking dormancy to first growth emerges
*its B*
Answer:
yeah I don't know why but I have the strongest feeling that its B
Explanation:
The elements in the growth of a flowering bulb provides a grower with the greatest flexibility of seasonal production is period of dormancy between bloom and grow seasons.
What are the characteristics of flowering bulb?Bulb is a modified stem that is the resting stage of certain seed plants, particularly perennial monocotyledons. A bulb consists of a relatively large, usually globe-shaped, underground bud with membraneous.
Bulbs can be easily and effectively propagated using a variety of techniques, but always use disease-free material. Try lilies, snowdrops, daffodils, tulips and alliums.
Examples of true bulbs: onion, garlic, allium, daffodil, tulip, amaryllis, grape hyacinth, Dutch hyacinth, Dutch iris, scilla, lily.
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HELP NOW PLEASE!!!!!!!!!!!
In which reaction are the atoms of elements rearranged?
O A. Uranium-235 breaks apart into krypton, barium, and three
neutrons.
B. Plutonium-240 breaks apart into xenon, zirconium, and three
neutrons.
C. Methane gas combines with oxygen to form carbon dioxide and
water.
O D. Two isotopes of hydrogen fuse to form helium.
SUBMIT
Answer:
C
Explanation:
Because its a chemical reaction or whatever but it's correct
A reaction where the atoms of elements are rearranged is when two isotopes of hydrogen fuse to form helium, which is option D. In this reaction, the atoms of elements (hydrogen isotopes) are rearranged.
The fusion process involves the combination of two hydrogen isotopes, typically deuterium and tritium, to form a helium nucleus. This nuclear fusion reaction is the primary process that powers stars, including our Sun, where hydrogen atoms combine to form helium, releasing a tremendous amount of energy in the process. Deuterium is an isotope of hydrogen that contains one proton and one neutron, while tritium is another isotope of hydrogen that contains one proton and two neutrons.
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The endoplasmic reticulum is a series of folded _______________ which are used by the cell for the transport of materials through the cell.
a)nuclei
b)membranes
c)molecules
d)atoms
what is the scientific name of wise
Match the description to the form of water that is described.
Molecules are
attracted to each
other, but not
ordered
?
Water vapor
Molecules are
not stuck
together
?
Liquid water
Molecules are
joined in an
ordered
structure.
?
Ice
Answer:
Molecules are attracted to each other, but not ordered: liquid water
ater vapor
Molecules are not stuck together: water vapor
Liquid water Molecules are joined in an ordered structure: ice
Explanation:
Apex for 9th grade answers
Match the description to the form of water that is described.
Molecules are not stuck together: Water vapor.
Molecules are attracted to each other, but not ordered: Liquid Water.
Molecules are joined in an ordered structure: Ice.
Why does estrogen most likely need to increase blood flow in a pregnant woman's body?
so blood can be better filtered
so she can be warmer
O so she can feel calmer
O so blood can reach the fetus
Answer:
So blood can reach the fetus
Explanation:
The blood can reach the fetus so that's why estrogen most likely need to increase blood flow in a pregnant woman's body
What is the function of estrogen?Estrogen refers to a group of hormones produced in the ovaries. The increase in estrogen during pregnancy enables the uterus and placenta to improve vascularization (the formation of blood vessels) transfer nutrients which support the developing baby.
In females, estrogen helps develop and maintain both the reproductive system and female characteristics, such as breasts and pubic hair.
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Light travels in the form of waves. The diagram below shows the path of a light wave moving
from medium A to medium B. Which of the following occurs when the light wave enters
medium B?
(1 Point)
The light wave stops moving,
The light wave's speed changes.
The light wave does not change.
O The light wave changes to a sound wave.
Answer:
The light wave's speed changes.
Explanation:
27. Which of the following will likely form at a convergent plate boundary?
A) sea floor spreading
B) rift valleys
C) mid ocean ridge
D) mountains
Answer:
d
Explanation:
Disorders can occur as a result of a person missing chromosomes or having too many chromosomes. Which of the following cells would not have a disorder?
sex cell with 24 chromosomes: 22 autosomes and two sex chromosomes
sex cell with 23 chromosomes: 22 autosomes and one sex chromosome
sex cell with 24 chromosomes: 23 autosomes and one sex chromosome
sex cell with 22 chromosomes: 22 autosomes and no sex chromosomes
Answer:
sex cells with 23 chromosomes: 22 autosomes and one sex chromosome.
Explanation:
Sex cells are the gametes and are products of meiosis. These cells have haploid chromosome number. Human sex cells are sperms and egg which serve as male and female gamete respectively. Human sex cells have n = 23 chromosomes. Out of total 23 chromosomes, 22 chromosomes are autosomes while one is the sex chromosome (either X or Y chromosome). Deviation from this pattern can cause any genetic disorder.
Which of these activities requires the use of a material resource?
heating a home
manufacturing steel
climbing a tall mountain
generating an electric current
Answer:
I think its manufacuting steel Have a great day
Explanation:
Manufacturing steel is an activity which requires the use of material resources. Thus, the correct option is B.
What are Material resources?Material resources are the materials which are found in the natural world that have many practical use and value for humans. Material resources include wood, glass, metals, edible plants, and plastics. Renewable material resources, like glass, are the resources which can be re-created easily.
Steel is manufactured from iron ore, which contains iron, oxygen and other minerals that occurs in nature. The raw materials for the manufacturing of steel are mined and then transformed into steel using two different processes such as the blast furnace, basic oxygen furnace route, and the electric arc furnace route.
Therefore, the correct option is B.
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Which of the following is the complementary mRNA sequence of:
ATG CCTACC GAC?
Answer:
UAC GGAUGG CUG
Explanation:
A=U ; G=C
WHAT IS:
I am a fungi that has no relationships with other organisms. I also reproduce by creating very resistant spores in other structures
Answer:
i believe the answer might be B: basidiomycetes
Answer:
zygomycetes
Explanation:
Fungi in the phylum Zygomycota are called zygomycetes. The zygomycetes are terrestrial. They are usually saprotrophs but there are some parasites. The hyphae are coenocytic (theyn lack septa). Septa are found only in the reproductive structures.
Name at least two ways in which insects are beneficial to humans.
Answer:
Natural and biological control :
The balance of nature depends on the activities of parasites and predators, the majority of which are species of insects. Researchers use this concept in biological control, and have been dramatically successful in many programs.
Silk :
The recognition of silk as a valuable product dates back to China, arguably in the year 2640 B.C. Presently, China annually produces some 30,000 tons of raw silk, which accounts for 80 percent of the world's supply. Most silk is produced from the cocoons of the Silkworm.
Foods :
Honey is certainly high on the list of products made by insects that may be consumed by humans.
Explanation:
Hope you like the answer..
question 6 Pls answer its 20 point
Answer: G1 brainliest??
Explanation:
A lake has begun to degrade due to an increase in human activity and urbanization. The main cause of this degradation is that
the oxygen carrying capacity of the water has decreased due to an increase in the discharge of organic substances (especially
phosphates) in the lake due to fertilizer runoff from local farms. This increase in organic substances has allowed aquatic plants,
including algae, in the lake to grow at an increased rate. As these aquatic plants die, excessive oxygen is used in the
decomposition process, which leads to oxygen deprivation and fish kills. This results in reduced animal populations in the lake,
and the decomposition process releases more phosphates back into the water to feed even more plant growth. This dramatic
increase in plant growth is called eutrophication and can make water unfit for human consumption
A scientist wants to come up with a solution to help minimize eutrophication as a way to maintain the lake's natural ecosystem
without eliminating any of the lake's native populations. Which of the following would be the best solution for the scientist to
implement?
OA. creating buffer strips around the lake using land vegetation to trap fertilizer runoff and prevent it from reaching the
water
OB. spraying clay on the aquatic plants so that they sink to the bottom of the lake to decompose
OC. asking the farmers in the area to only use fertilizer on their crops when it is raining or windy outside
OD. treating all runoff with metal complexes that are poisonous to algae populations
Answer:
The answer is b
Explanation:
because i did the test and i got the answer right
The correct option is A. creating buffer strips around the lake using land vegetation to trap fertilizer runoff and prevent it from reaching the water.
What is buffer Strips?A buffer strip refers to an area of land maintained in permanent vegetation that helps to control air quality, soil quality, and water quality, along with other environmental problems, dealing primarily on land that is used in agriculture.
Buffer strips trap sediment, and enhance filtration of discharge organic substances as phosphates and pesticides by slowing down surface runoff that could enter the local surface waters (here, lake).
Thus, buffer strips can be used prevent discharge of organic substances into the lake that lead to increase in biological oxygen demand water affecting the stable lake ecosystem.
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explain how limiting factor may affect your terrarium
Answer:
A limiting factor is anything that constrains a population's size and slows or stops it from growing. Some examples of limiting factors are biotic, like food, mates, and competition with other organisms for resources. Others are abiotic, like space, temperature, altitude, and amount of sunlight available in an environment. Limiting factors are usually expressed as a lack of a particular resource. For example, if there are not enough prey animals in a forest to feed a large population of predators, then food becomes a limiting factor. Likewise, if there is not enough space in a pond for a large number of fish, then space becomes a limiting factor. There can be many different limiting factors at work in a single habitat, and the same limiting factors can affect the populations of both plant and animal species. Ultimately, limiting factors determine a habitat's carrying capacity, which is the maximum size of the population it can support.
Explanation:
https://www.nationalgeographic.org/topics/limiting-factors/?q=&page=1&per_page=25
Natural selection involves energetic trade-offs between ________. Group of answer choices high survival rates of offspring and the cost of parental care increasing the number of individuals produced during each reproductive episode and a corresponding decrease in parental care producing large numbers of gametes when employing internal fertilization versus fewer numbers of gametes when employing external fertilization choosing how many offspring to produce over the course of a lifetime and how long to live Next
Answer:
The correct answer is ''high survival rates of offspring and the cost of parental care''
Explanation:
Natural selection is the differential reproduction of some genetic variants with respect to others. Natural selection favors individuals who maximize their total reproductive success throughout life, that is, it favors certain phenotypes or variants are associated with greater offspring and / or greater survival, that also means that selection will favor those who stop spending on a particular breed at the right time to invest in another, that is, the amount of energy invested in each of them. This same natural selection also favors those genes that make it effective when the body that carries them is in development to extract all possible parental investment from their parents.
Please help!!!!! which field studies all organisms that have existed, where they came from and how they are related
Answer:
ecology
Explanation:
ecology - the branch of biology that deals with the relations of organisms to one another and to their physical surroundings
As ecological succession progresses forward in time,
A) there is very little effect on the diversity of plant and animal life.
B) the diversity of plant and animal life increases.
C) the diversity of plant and animal life decreases.
D) none of the above
The answer is not A
Answer:
B the diversity of plant and animal life increases.
Explanation:
Succession will always increase biodiversity
Which property of a mineral is expressed using the Mohs scale?
luster
hardness
0 0 0 0
monetary value
streak
Answer:
hardness
Explanation:
Mohs hardness, rough measure of the resistance of a smooth surface to scratching or abrasion, expressed in terms of a scale devised (1812) by the German mineralogist Friedrich Mohs. The Mohs hardness of a mineral is determined by observing whether its surface is scratched by a substance of known or defined hardness.
please help if you can
The first part of the plant to emerge from a sprouting seed is the root. If the see is planted upside down, the root will first grow upward. Then it will turn and grow downward. What kind of response is this?
A.Gravitropism
B . Hydrotropism
C. Phototropism
D. Thigmotropism
What is an organism that has similar characteristics and
can reproduce?
Gene flow
Mutation
Species
Organism
Explanation:
species are the group of organisms which are compatibly reproduce
What is an example of a seasonal change for fall?
Answer: when the days start to get shorter, the trees sense that there is less sunlight.
Explanation: photoperiodism, the reaction of organisms, such as plants, to the length of day or night.
What term refers to corps that mainly protect other crops during their early days?
Answer:
forage crops
peas
when one animal leaves its home and another animal uses it
Answer:
I don't get your question
Which statement about the Earth's atmosphere is incorrect? *
1. Earth's atmosphere contains the gases nitrogen and argon.
2. Earth's atmosphere contains the gases carbon dioxide and nitrogen.
3. Earth's atmosphere Contains mostly oxygen.
4. Earth's atmosphere contains tiny solid particle like dust and polletn.
Answer:
4 i think hope this helps
Answer:
number 3 is incorrect
Explanation:
The Atmosphere contains mostly nitrogen (78 percent)
Scientists are examining the possible role of a large asteroid in the Cretaceous mass extinction event. A large asteroid strike would likely have caused rapid climate cooling and diffusion of sunlight.
Which of the following statements are the best null and alternative hypotheses when scientists look at the geologic evidence of extinction related to the asteroid strike?
A) Null: The rate of extinction would be steady over the entire length of time the climate was altered.
Alternative: The rate of extinction would be greatest immediately before the asteroid strike.
B) Null: The rate of extinction would gradually decrease over the entire length of time the climate was altered.
Alternative: The rate of extinction would be at its lowest immediately after the asteroid strike.
C) Null: The rate of extinction would be steady over the entire length of time the climate was altered.
Alternative: The rate of extinction would be greatest immediately after the asteroid strike.
D) Null: The rate of extinction would gradually decrease over the entire length of time the climate was altered.
Alternative: The rate of extinction would be at its greatest immediately after the asteroid strike.
Answer:
Option C
Explanation:
The null hypothesis is the problem statement and alternative hypothesis is counter of the null hypothesis.
Hence, the null hypothesis here is the rate of extinction was neither higher nor lower when there were sudden climatic changes (asteroid strike)
And alternate hypothesis is "the rate of extinction was either higher or lower when there were sudden climatic changes (asteroid strike)"
Hence, option C is correct