Why is nonpoint source pollution difficult to control?
Answer:
because it comes from the everyday activities of many different people, such as fertilizing a lawn, using a pesticide, or constructing a road or building.
Explanation:
Answer:
because it comes from the everyday activities of many different people, such as fertilizing a lawn, using a pesticide, or constructing a road or building.
Explanation:
edge
Mention the tools that have been used for tracing evolutionary relationship of humans
Answer:
Human evolution has been studied by using the various tools of tracing evolutionary relationships like excavating (digging earth), carbon-dating, studying fossils and determining DNA sequences.
ATP molecules, which are used for energy by cells, are built during all three stages of cellular respiration. Which stage of cellular respiration generates the most ATP molecules? (1 point) The Krebs cycle Glycolysis The electron transport chain Fermentation
Answer:
Electron transport chain.
Explanation:
Please help I know its a dumb question but is a is a rapitest electronic soil tester same as a alcohol thermometer
Answer:no
Explanation:
Answer:
i think it is no
Explanation:
Where do electrons get their energy in photosystem II? A. From energy in photons B. From ADP and ATP C. From NAD and NADPH D. From glucose in Calvin cycle
Answer:
The photons get captured and their energy is to used to give energy to the electrons.
Answer:
From energy in photons
Scientists believe that most early mammals were: large very small medium sized none of the above
Answer:
small bcz they had not fully evolved
Answer:
large
Explanation:
What is the main function of the structure labeled A?
It attracts insects and other animals.
It moves the pollen to the ovaries.
It catches pollen.
It produces pollen.
Answer:
D
Explanation:
I did the assignment
The main function of the structure labeled A is it produces pollen. Therefore, the correct option is D.
What is a pollen?Pollen is a microscopic, powdery substance produced by the male reproductive organs of seed plants. It is made up of cells that contain the male gametes (reproductive cells) and is responsible for fertilizing the female reproductive cells (ovules) to produce seeds.
Pollen is often carried from one plant to another by wind, insects, or other animals, where it can then come into contact with the female reproductive organs of a different plant.
If the pollen comes into contact with a receptive ovule, it can fertilize the ovule and produce a seed. Therefore, the correct option is D.
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The question is incomplete, but most probably the complete question is,
What is the main function of the structure labeled A?
A. It attracts insects and other animals.
B. It moves the pollen to the ovaries.
C. It catches pollen.
D. It produces pollen.
Genetic drift and natural selection can both be mechanisms of evolution. However, they are very different mechanisms. Explain how genetic drift is different from natural selectio
Answer:
Explanation:
Natural selection is the survival of individual organism due to the difference in phenotype. It serves as a basic for evolution as the different heritable characteristics in an individual is due to natural selection. Natural selection acts on the phenotype of the individual which is the visual observance while Genetic drift is the change in frequency of an allele that already exist in a population. This could lead to the allele being selected against and if very small can be lost with time.
Which of these is a function of estrogen in reproduction?
O A. Producing the endocrine system and hormones
B. Producing and maturing sperm
O c. Promoting the development of the adult female body
O D. Promoting the development of adrenal glands
SUBMIT
Answer:
Promoting the development of the adult female body
Explanation:
the explanation for this is weird... The primary function of estrogens is development of female secondary sexual characteristics...etc of parts of the female's body..
if u want more explanation lmk hope this helped
Which consumers are carnivores (eat meat)?
Answer:
carnivores (eat meat)
Explanation:
(c) find the longest interval during which no tree-cutting samples occurred. what is the first year that no tree-cutting samples occurred in that interval?
Answer:
Longest interval during which no tree-cutting sample occurred: 9 years (1203 AD - 1212 AD)
First year in that interval: 1203 AD
Explanation:
Lets complete the question first.
Q) A study uses tree rings to determine the year in which a tree was cut. The data is shown in the leaf and stem diagram in the ATTACHMENT.
The three digits number in the left column represents centuries and decades AD. The numbers on the right represents the years.
For example, consider the first input in the diagram
119 | 5 6
which means it represents 2 samples.
1195 AD, 1196 AD.
The longest interval with no tree-cutting samples is found from 1203 AD to 1212 AD.
What is the difference between native and nonnative species
Answer:
Native plants are those plants which occur naturally in a region. A non-native is one that does not.
Explanation:
For example, soybeans, kiwi fruit, wheat, honey bees, and all livestock except the American bison and the turkey are non-native species to North America.
Answer:
Native species are naturally present in an area. ... Non-native species do not cause environmental or economic harm. An important, not-to-be-missed distinction between non-native species and invasive species is that non-native species do not disrupt the natural functions and processes of our native ecosystems.
Explanation:
HOPE IT HELPS : D
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In a sample of double-stranded DNA, 30% of the nitrogenous bases are adenine (A).
What percentage of the nitrogenous bases in the sample are thymine (T)?
Choose 1 answer:
A. 20%
B. 30%
C. 60%
D. 70%
Answer:
30% thymine
Explanation:
If 30% of Adenine is present, it would be reasonable to assume that 30% of Thymine will be present, as the ratio between the two complementary nitrogenous bases will be roughly equal. Therefore, that leaves us with 40% between Cytosine and Guanine.
What are the inputs and outputs of cellular respiration and photosynthesis?
energy
water
oxygen
sugar
carbon
dioxide
Photosynthesis
Cellular Respiration
Inputs
Outputs
Photosynthesis
inputs : water , carbondioxide,
outputs: oxygen, sugar
Cellular respiration
inputs : sugar, oxygen
outputs: water, carbon dioxide
a student placed a stack of rocks on a ramp. she added clumps of soil rooted with live grass. using a garden hose, she then applied a steady spray of water that soaked into the soil, making it heavier. what does the students experiment model
Answer: its C
Explanation:
Since a steady spray of water soaked into the soil, making it heavier. This student's experiment models: C. The role of rainfall in mass wasting.
A rock can be defined as a solid naturally occurring landform and it is typically made up of various minerals.
In this experiment, a stack of rocks was placed on a ramp and clumps of soil rooted with live grass were added. By using a garden hose, the student then applied a steady spray of water which soaked into the soil and made it heavier in weight.
Hence, this experiment models the role rainfall (steady spray of water) plays in mass wasting.
Mass wasting is also referred to as mass movement or slope movement and it can be defined as a geomorphic process through which rock, debris, soil, and regolith are largely moved downward, especially due to the force of gravity.
Basically, mass wasting describes the downslope (downhill) movement of rock and soil due to a steep slope and force of gravity.
In conclusion, the steady spray of water acts as a force which moves some of the soil constituents downward, making it heavier.
Read more: https://brainly.com/question/21975453
why is waters high specific heat good for living things
Answer and Explanation:
Water's high specific heat means that the temperature of the water takes a long time to change. Living things that live near bodies of water experience temperatures different than inland, which is typically advantageous. During the summer, water remains cooler than the air for a period of time, and in the winter, the water remains warmer than the air for a period of time. In turn, the air in the areas with a body of water is typically increased or decreased a few degrees in temperature depending on the season. In the winter, this also produces what is called the "lake effect", in which snow is produced during cooler atmospheric conditions when a cold air mass moves across long expanses of warmer lake water.
Is there lipids in tofu
Answer:
NOPE
Explanation:
The gluten-free diet was originally intended for people with celiac disease, but it’s now become a new fad diet for the general population. Many people state that gluten-free diets are beneficial for people who aren’t sensitive to gluten, while others suggest that there’s no benefit. Use credible resources to evaluate the argument yourself. Do you think there’s sufficient scientific evidence to support the use of a gluten-free diet in people who aren’t sensitive to gluten? Provide evidence that supports your argument.
Answer:
The gluten free diet is helpful for the people that are sensitive to food with gluten it which occurs due to the celiac disease. It was originally meant for the such people but it becomes a new fad. However, there is no compelling evidence to support that gluten free diet helps in health improvements n non sensitive people.
In other hand there are majority of doctors are against the use of gluten free diet is not good for various body organs like heart. A study concluded that there are lower risk of heart disease in people take more gluten. Doctors and various study suggests that people with no celiac disease should not avoid gluten.
Answer:
There’s no benefit to a gluten-free diet for people who aren’t sensitive to gluten. Many websites state benefits of a gluten-free diet. These benefits range from weight loss to improved heart health. None of these sites backed up their claims with scientific research. More credible sites consistently state that there’s no scientific research to back up these claims. Right now, there’s no evidence that supports the benefits of a gluten-free diet in people who aren’t sensitive to gluten.
Explanation: just took test !!
A food chain is a simple way of showing the relationships between organisms in an ecosystem. What do we call a diagram that shows the complex feeding relationships between organisms in an ecosystem?
Answer:
a food web
Explanation:
a food web is a more complex version of the food chain
Answer:
food web
Explanation:
A food web is a more complicated version of a food chain
The iodine changes color in the presence of
A starch
A hydrocarbon
A sugar
A protein
Answer:
The answer is starch.
The primary way in which toddlers play is
A. dramatic play.
B. exploration.
C. art.
D. block building.
Answer:
D
Explanation:
An important similarity between photosynthesis and cellular respiration is that both processes
use and store 02
use and make ATP.
store energy in glucose.
release energy from glucose.
Answer:
use and make ATP.
Explanation:
Explain why food webs are more stable than food chains
Answer:
Food webs are more stable than food chains because i one species died or became extinct there would be other options for the other organisms to all back on.
Example:
The mouse became extinct, the snake now eats bunnies because they are their other prey.
experiment to show transpiration takes place in plants
Explanation:
experiment to demonstrate transpiration phenomenon with the Bell jar method
Which best explains how the green areas depicted in the image on the left are reflected in the population map on the right?
Populations are greater in fertile areas that are close to freshwater sources, which is why more people live near deserts.
Populations are greater in fertile areas that are close to freshwater sources, which is why more people live near oceans.
Populations are greater in fertile areas that are close to freshwater sources, which is why more people live near mountains.
Populations are greater in fertile areas that are close to freshwater sources, which is why more people live near rivers.
Answer:
D. Populations are greater in fertile areas that are close to freshwater sources, which is why more people live near rivers.
Explanation:
Population is greatly depend on the availability of water. Those areas are densely populated areas where water is present in sufficient quantity as compared to those areas have low population density where water is in low amount. The main reason is that water plays a vital role in our daily life which is used almost in every aspects of life. We can see that deserts have less population due to less water availability and areas attached to the rivers are densely populated due to more water availability.
Answer:
D
Explanation:
Population is greatly depend on the availability of water. Those areas are densely populated areas where water is present in sufficient quantity as compared to those areas have low population density where water is in low amount. The main reason is that water plays a vital role in our daily life which is used almost in every aspects of life. We can see that deserts have less population due to less water availability and areas attached to the rivers are densely populated due to more water availability.
energy is captured for photosynthesis by
Answer:
Photosynthetic cells contain chlorophyll and other light-sensitive pigments that capture solar energy. In the presence of carbon dioxide, such cells are able to convert this solar energy into energy-rich organic molecules, such as glucose.
Answer:
Chlorophyll
Explanation:
Energy for photosynthesis is captured by chlorophyll molecules to get it used in photosynthesis
How are viruses different from Bacteriophages?
Answer: It's different because it is a bacteria eater.
Explanation: A bacteriophage is a type of virus that infects bacteria. In fact, the word "bacteriophage" literally means "bacteria eater," because bacteriophages destroy their host cells. All bacteriophages are composed of a nucleic acid molecule that is surrounded by a protein structure.
Hope this helps! Stay safe :))))
Answer:
Even bacteria can get a virus! The viruses that infect bacteria are called bacteriophages.
Explanation:
A bacteriophage is a virus that infects bacteria.
A bacteriophage, or phage for short, is a virus that infects bacteria. Like other types of viruses, bacteriophages vary a lot in their shape and genetic material.
What part of your brain controls all mental activities?
brain stem
medulla
cerebellum
cerebrum
Answer:
cerebrum
Explanation:
cerebrum controls reading, thinking, learning, speech and emotions
SOMEONE PLEASE HELP ME :(
Neurotransmitters can be blocked which
disrupts the ____ impulse from traveling
through the target neuron.
A. synthetic
B. electrical
C. somatic
D. chemical
Explain the central dogma of molecular biology. please don't define it or state what it says.
Answer:
The central dogma of molecular biology is an explanation of the flow of genetic information within a biological system. it is often stated as "DNA makes RNA, and RNA makes protein", although this is not its original meaning.This states that once "information" has passed into protein it cannot get out again.
Explanation:
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