Scientists are interested in estimating the effect of pollution on the water grade of a stream. They will use statements of various bottom-dwelling insects, or macroinvertebrates, contain in the stream as hands of the physical, chemical, and biological conditions within the stream, Thus option "C" is correct.
What are some of the advantages of biological monitoring of macroinvertebrates in a stream?Macroinvertebrates merge the marks of short-term environmental deviations.
Most species have a complicated life cycle of about one year or more. Liable life phases will respond fast to stress; the overall community will respond more slow.
Thus, option "C" is correct, Macroinvertebrates are top predators, so they are often used in defining whether toxins will bioaccumulate or biomagnify in an aquatic environment.
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The Endangered Species Act was passed in 1973, but many people today feel that the Endangered Species Act has not done enough to protect endangered species from human impacts. do you think that it needs to be updated? Give specific examples why or why not.
Answer:
Absolutely
Explanation:
only 3 percent of species protected by the law have recovered to the point where they are no longer threatened or endangered. The ESA can and should be strengthened so that it not only continues to protect species, but also promotes their full recovery.
In the last 100 years we human beings have eliminated 10 times more species than have disappeared in the past at the natural background rate. Without conservation, we are at risk of losing precious wildlife and depriving future generations of America’s heritage.
With the growing menace of climate change, many more species need our protection. In 1973, there were only 78 species listed in the ESA; now there are almost 1,600.
Can snow form with a warm and cold front
Answer:
With a warm front, boundary between warm and cold air is more gradual than that of a cold front, which allows warm air to slowly rise and clouds to spread out into gloomy, overcast stratus clouds. Precipitation ahead of a warm front typically forms into a large shield of steady rain or snow.
Why did the chicken cross the road?
Answer:
to get to the other side
Explanation:
the term carbon footprint normally refers to the total amount of carbon dioxide that
each individual puts out based off their actions.
(ex: driving cars, supporting major corporations, etc.)
Which energy resource is inexpensive, helps with garbage disposal, and reduces the need for landfills, protecting habitat?
O Hydropower
O Natural gas
O Petroleum
O Biomass
The energy resource is inexpensive, helps with garbage disposal, and reduces the need for landfills, protecting habitat Biomass.
How do renewable energy sources help the environment?Environmental and economic benefits of using renewable energy contains develping energy that has no greenhouse gas emissions from fossil fuels and decrease some types of air pollution.
Diversifying energy supply and reducing dependence on imported fuels.
Thus, Biomass energy is energy generated or produced by living or once-living organisms.
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Which organ of the male reproductive system is only found on the posterior bladder wall?
Male reproductive system is mostly located outside to the body. The seminal vesicles are found only on the posterior wall of the bladder wall.
What are seminal vesicles?Seminal vesicles are gland which is present in the male reproductive part and produces the fluid that makes semen.
These are located in the posterior wall of the urinary bladder. It is mainly associated with sperm formation.
Thus, it can be concluded that the male reproductive system is only found on the posterior bladder wall is seminal vesicle.
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How do the functions of the skeletal and muscular system differ?
Which of the following is NOT correct?
Group of answer choices
tetracyclines bind to ribosomes and inhibit protein synthesis
sulfonamides inhibit folic acid synthesis
bacitracin inhibits ATP synthase and block energy production
quinolones inhibit DNA replication
rifampins (rifamycin) inhibit RNA transcription
Answer:
sulfonamides inhibit folic acid synthesis
Explanation:
sorry if wrong
What enzymes help digest proteins?
Answer: Amylase (made in the mouth and pancreas; breaks down complex carbohydrates) Lipase (made in the pancreas; breaks down fats) Protease (made in the pancreas; breaks down proteins)
hope this helps !
Explanation:
construct a dichotomous key which can be used to identify the five antelopes shown in figure 1.1 use only visible features.
The dichotomous key used to identify the antelopes might be based on the presence/absence of certain muscles, weight, etc.
What is a dichotomous key?A dichotomous key is a system to classify species and/or taxonomic groups by using two different choices.
For example, the presence/absence of certain physical features can be used to identify the antelopes.
Moreover, the threshold in certain features such as weight/height can also be used to classify species.
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The mad scientist put a human brain into a robust body. The body is
A
smart.
B
strong.
C
beautiful.
D
admired.
Answer:
strong
Explanation:
There no way a a robust body could be beautiful,admired or smart
Answer: A
Explanation: I'm sure that the answer is the most obvious one?
Fossils of a primitive whale called Basilosaurus have been found in many parts of the southeastern U.S., including the Gulf states of Mississippi, Alabama, and Louisiana. This creature lived in the sea during the Eocene epoch, which lasted from about 55 million to 34 million years ago.
What do these fossils suggest about the areas of land in which they are found?
A.
Humans lived in the areas before Basilosaurus.
B.
The areas were once covered by the sea.
C.
Humans and Basilosaurus lived in the areas together.
D.
The areas were deserts in the past.
Answer:
B The areas were once covered by the sea! Hope this helps.
silt suspended in the water surrounding a coral reef near
the coast of a small island community in the Caribbean Sea
Origin:
Effect on one organism:
Effect on humans:
mercury in the water of a large lake that is popular for fishing
Origin:
Effect on one organism:
Effect on humans:
Pollution of water bodies due industrial wastes kills aquatic organisms and this disrupts food source for humans.
What are the effect of silt on aquatic organisms?Silt refers to small fine particles of sand or mud that forms a suspension in water.
Silt in oceans usually come from rivers opening into the sea
The silt suspended in the water surrounding a coral reef near the coast of a small island community in the Caribbean Sea will originate from rivers and streams opening into the sea.
The silt will reduce the population of algae on the coral reef as they increase water turbidity.
This will reduce fish population in the area and the food source for humans.
Industrial wastes are a source of mercury in lakes.
The presence of mercury will poison the lake and kill the fishes in the lake.
It will also make the water unfit for drinking by humans.
Therefore, pollution of water bodies kills aquatic organisms and this disrupts food source for humans.
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What does home meant to you?
Answer:
home is a place if u get u should be thankful because there are people living in streets they have no such places to live
HELP ME OUT PLS!!!!!!!!!!!!!!!!!!!
11. The earth making an orbit around the sun is called a ______________
and takes _______ days.
12. What season would Texas be having at point D?
______________
The earth making an orbit around the sun is known as revolution and takes 365 days.
What season would Texas be having at point D?The winter season is started in the model D because the texas is not present in front of the sun but behind it and we know that that part of the earth which is infront of the sun has summer season.
So we can conclude that texas has a winter season due to its location as compared to other regions.
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Which of the following had the lowest social hierarchy in Japanese culture during this time period?
A. Merchants
B. Peasants
C. Samurai
D. Emperor
Answer: The correct answer is B. Peasants
It’s multiple-choice I just need the answers please
Answer:
2, 2, 1, 2, 4
Explanation:
Question 1. - Decomposers break apart dead organisms into simpler inorganic materials, making nutrients available to the plants/primary producers.
Question 2. - Energy decreases as it moves up trophic levels because the energy is lost as metabolic heat when the organisms are consumed by other ones from the next level.
Question 3. - Energy moves through an ecosystem in a single direction from the sun to autotrophs/producers, then from producers to heterotrophs/consumers. Never backward from consumers to producers.
Sun ⇒ Producers ⇒ Consumers ⇒ Decomposers
Question 4. - See Question 1.
Question 5. - Autotrophs don't need energy from other organisms. Instead, they use photosynthesis to get their food.
- Note: Fungi cannot make their own food and therefore are not autotrophic. They do not have chloroplasts, instead, they are osmotrophic!
HUMAN EGGS AND SPERM EACH CONTAIN 23 _____, WHICH ARE COMPOSED OF LONG STRANDS OF _________.
Explanation:
HUMAN EGGS AND SPERM EACH CONTAIN 23 "Chromosomes"WHICH ARE COMPOSED OF LONG STRANDS OF "DNA"
Human eggs and sperm each contain 23 chromosomes, which are composed of long strands of DNA.
What are Chromosomes?Chromosomes may be defined as the thin, thread-like structure that appears during cell division. Chromosomes are generally found in the nucleus of the cell in the form of thread. These thread-like structures are made up of DNA, RNA, histones, and non-histone proteins.
The Chromosome was first discovered by E. Strasburger in 1875. But the term chromosome was given by Waldeyer in 1888.
Almost all the cells of the human body have 46 chromosomes. But there are two types of cells that are structurally and functionally different. These are known as the egg cells which are present in females and the sperm cells which are present in males.
Both these cell types in humans only have 23 chromosomes instead of 46. These chromosomes are remarkably composed of long and double strands of DNA.
Therefore, human eggs and sperm each contain 23 chromosomes, which are composed of long strands of DNA.
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Why Are People Different Colors? Nina Jablonski, a biological rainbow of human skin color." She knew that our closest primate relatives have pale skin under dark fur, but human skin comes in a variety of shades from pinkish white to dark brown. How did this variation arise Many biological traits have been shaped by natural selection, Could human skin color be one such trait? If so, she would have to find the selective pressure that caused different populations to evolve varying levels of skin pigmentation. at Penn State University, spent many hours chinking about 'the sepia You will now meet Nina in a short five-minute video (https://www.hhmi.org/biointeractive/biology-skin-color). She will take you on a journey that she undertook in the pursuit of this question. After you have viewed the video, answer the following five questions. Questions 1. Describe the conditions necessary for evolution by natural sclection to take place in a population. 2. With regard to the evolution of skin color in humans, which of these conditions is Nina sure about (and why) and which one(s) is she investigating? 3. What is Nina's likely hypothesis about the evolution of skin color in humans? 4. How might she test her hypothesis?
2. What type of plants did Mendel use for his investigations? Why?
pea piant
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3. What were the two types of fertilization Mendel used to breed the plants?
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click on "aono con in nairs" Read the
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what were the two types of fertilization mendel used to breed the plants?
Answer:
2. Mendel carried out his key experiments using the garden pea, Pisum sativum
3.self-fertilization.
type a paragraph explaining how the atoms in sugar molecules can be
used to form amino acids and other large carbon-based molecules?
HELP PLS!!!!!!!!
Answer:Sugar molecules contain carbon, hydrogen, and oxygen: Their hydrocarbon backbones are used to make amino acids and other carbon-based molecules that can be assembled into larger molecules (such as proteins and DNA)
Would you expect to find older or newer fossils in rock layers closer to the surface? Why?
Answer:
Newer
Explanation:
Because it is like when you place a plant and its roots underground and cover it up. You have the newer dirt going over the newest roots and the roots are close to the top
(If you aren't satisfied with that explanation here's another one) :
A hundred years ago dinosaurs existed and then they died and their remains were buried under dirt. However, we know that the fossils aren't anywhere near the top. Over time fossils get buried under layers of dirt the newer ones will be near the top because they haven't had time to be more buried.
What is a biome? Describe 2 biomes on the planet.
Answer:
A biome is a large naturally occurring community of plants and animals occupying a major habitat :)
Explanation:
1 example of this is the Rainforest :)
2 example of this is the Savannnah :)
Have an amazing day!!
Please rate and mark brainliest!!!
PLEASE HELP I HAVE THIS DUE TODAY
Answer:
C. The diversity of Earth's species.
Explanation:
So, pretty much all of the other options in some way impact wind patterns, but honestly, I don't see how biodiversity impacts it.
Geographic isolation caused a population to separate and experience two different environments. With natural selection occurring over many generations, the two populations are no longer able to successfully mate and reproduce. This is what
happens is_____.
O evolution at the species level
O sympatric speciation
O microevolution leading to speciation
O allopatric speciation
Formation of new species or speciation as a result of geographic isolation is an example of allopatric speciation.
What is speciation?Speciation is the process by which new species are formed.
There are several types of speciation;
allopathic speciation sympatric speciation peripratic speciationparapatric speciationAllopatric speciation occurs when species which are isolated from one another by physical barrier, such as a mountain range or a waterway causes new species to form as a result of inability to interbreed.
Therefore, geographic isolation which leads to speciation is an example of allopatric speciation.
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How many phosphate minerals most affected human activity
Answer:
How much phosphorus does the human body have?
How much phosphorus do I need?
Life Stage Recommended Amount
Children 9 to 13 years old 1,250 mg
Adolescents 14 to 18 years old 1,250 mg
Pregnant and lactating adolescents 1,250 mg
Adults over 19 years of age 700 mg
Explanation:
What creates the van Allen belts
Explanation:
The Van allen radiation belt is a zone of
energetic charged particles,most of which originate from the solar wind.
Answer:
direction of charged particles
Explanation:
PLEASE HELP! Will give brainliest if it’s the correct answer!!!
This is a photo taken several years after the Kilauea volcano erupted in Hawaii. What type of succession is shown and how do you know?
Primary because there are only small plants growing,
Primary because a volcanic eruption covers the area in rock,
Secondary because small plants are able to grow soon after the disturbance
Secondary because you can still see trees in the background that were not covered by lava
Answer:
Primary because a volcanic eruption covers the area in rock
Explanation: Because there are no plant growing were the photo was took
What happened to the mass of the ice after it melted?
5. Why do you think the concrete needs to be reinforced with steel bars?
Answer:
ABA namalayan ko Yan
Explanation:
dI ko Yan alam
sorry
In concrete construction, reinforcing steel rods, bars, etc absorbs tensile, shear, and occasionally compressive stresses. Because plain concrete cannot readily endure the strain and bending stresses induced by wind, earthquakes, vibrations, and other pressures, it is unsuitable for most structural purposes. It is also responsible for holding the concrete together in the right position.
Hope it helped!