a. digestive and excretory systems.
23. An unknown solution is colorless when tested with phenolphthalein but causes the indicator phenol red to turn red. Use this information to find the approximate pH of this solution.
Phenolphthalein is a weak acid and is colorless in solution. It is generally used to find out the endpoint of titration. As the An unknown solution is colorless when tested with phenolphthalein but causes the indicator phenol red to turn red it indicates the pH of the solution is 8.0 or above.
What is phenol red?Phenol red is an indicator whose color can exhibit a gradual transition from color yellow to red.
Phenol red is actually a water-soluble dye as is used as a pH indicator, changing from yellow to red over pH 6.6 to 8.0.
Thus, it can be concluded that the pH of the given unknown solution is in range 8.0 or above.
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Seafood watch has made several unsustainable fishing practices illegal. please select the best answer from the choices provided t f
Seafood watch has made several unsustainable fishing practices illegal, is a true statement.
What is a Seafood watch?Seafood Watch is a program sponsored by the Monterrey Bay Aquarium; recommendations for which seafood to buy or avoid; consumers and businesses to become advocates for "ocean-friendly".
Seafood Watch has had an immense influence on decisions regarding illegal fishing practices and has helped design sustainable seafood environments due to their lists of seafood that should be eaten without worries.
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Answer:
False.
Explanation:
Just took the test. Also... It is false because Seafood Watch is not a legal authority and does not have the power to make fishing practices illegal. Seafood Watch is a program run by the Monterey Bay Aquarium that provides recommendations and guidance on sustainable seafood choices based on scientific assessments of fisheries and aquaculture practices. It aims to inform consumers and promote sustainable fishing practices but does not have legal authority to enforce regulations or make fishing practices illegal. That responsibility lies with governmental bodies and regulatory authorities.
what are the three reasons that people kill sharks?
Fear
Food
Hunting
Showing off to others
Profit
Which of the following describes an environmental consequence of population growth?
Increase in prevalence and spread of disease
Degradation of land, with decreased pollution
Loss of habitat and biodiversity and less extinctions
Climate change, increased drought, and less storms
Can u name one plant whose no part goes waste?
Answer:
mushroom
Explanation:
mushroom
Which of these is the most likely prediction that the meteorologist would make about the weather? There is a possibility of
precipitation
hurricane
tornado
fair weather
Answer:
Precipitation or Fair Weather
Explanation:
Of these choices, a meteorologist is most likely to predict precipitation. Hurricanes and tornados are relatively rare occurences.
What is photosynthesis? What does it involve?
Which is NOT an example of electromagnetic radiation?
a. radio waves
b. X rays
c. gravity
d. visible light
Answer:
Electromagnetic spectrum consists of radio waves, microwaves, infrared waves, visible spectrum, ultraviolet waves, X-rays and gamma rays. It does not include alpha rays.
Humans burn fossil fuels to power transportation, heat homes, and provide electricity for everyday life. Fossil fuels take millions of years to form. When they are burned, they create air pollution that is harmful to the environment and public health. Predict what will happen if people continue to consume these fossil fuels?
A.
These resources are nonrenewable and will be around forever.
B.
These resources are nonrenewable and will eventually disappear.
C.
These resources are renewable and will be around forever.
D.
These resources are renewable and will
Answer:
B.
These resources are nonrenewable and will eventually disappear.
Explanation:
Answer:
B. These resources are nonrenewable and will eventually disappear.
Explanation:
Fossil fuels take millions of years to form, but we mine and use them at a rate that is much faster than their replenishment time. That means that, at some point, we will use up all of the available fossil fuels before new ones can be formed.
consider the ct/cgrp example of alternative splicing. which types of alternative splicing patterns are represented?
Answer:
alternative
Explanation:
alternative splicing is a deviation from this preferred sequence where certain exons are skipped resulting various froms of mature mRNA.
What information can a scientist learn directly from a single fossil?
OA. How the organism is related to organisms on Earth today
B. How many offspring the organism
produced
C. What the organism looked like
D. How long the organism lived
SU
SAAMINE
KORT THING SPIRING HARU
P
FOUN
D
leve
PROTEILE SE
mais rond
SARDE
sang big
According to the research, a scientist can learn directly from a single fossil how long the organism lived and what it looked like.
What is a fossil?They are the remains of an organism and the organic substances that present a certain degree of petrification and are naturally located in the various terrestrial layers.
These organic remains found in the strata of sedimentary rocks serve to date their ages, providing information on specific periods in the history of the planet.
Therefore, we can conclude that according to the research, a scientist can learn directly from a single fossil how long the organism lived and what it looked like.
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!HELP please it’s due now!
Three quarters of Earth's surface is ocean. The aquatic communities found in the ocean are called marine ecosystems
appose the amount of sunlight in a marine ecosystem is drastically reduced Identity two different effects this change in sunlight will have on the ecosystem and explain how each impacts the aquatic communities. Tyy
Answer:
Laboratory studies suggest changing ocean chemistry will 1) harm life forms that rely on carbonate-based shells and skeletons, 2) harm organisms sensitive to acidity, and 3) harm organisms higher up the food chain that feed on these sensitive organisms.
Explanation:
These include the open ocean, the deep-sea ocean, and coastal marine ecosystems, each of which has different physical and biological characteristics.
A_____ is a chemical substance that organisms require to live
Answer:
A NUTRIENT IS A CHEMICAL SUBSTANCE THAT ORGANISMS REQUIRE TO LIVE
after the domain category was first introduced there were how many kingdoms?
Answer:
It depends on what grade level you are in. Younger grade levels only learn about, if i remeber correctly, four kingdoms. But there are actually six. In the traditional five-kingdom system there are only five.
The six-kingdoms system: Bacteria, Archea, Protista, Plantea, Fungi, Animalia.
The traditional five-kingdom system: Monera, Protista, Plantea, Fungi, Animalia
Which process produces two genetically distant haploid cells
Explanation:
When a haploid cell undergoes mitosis, it produces two genetically identical haploid daughter cells; when a diploid cell undergoes mitosis, it produces two genetically identical diploid daughter cells.
Explanation:
Both haploid and diploid cells can undergoes mitosis. when a haploid cell undergoes mitosis, it produces two genetically identical haploid daughter cells
b. Write a simple word equation to show how NPP is derived from GPP :
The net primary productivity (NPP) and the gross primary productivity (GPP) are related such that: NPP = GPP - Respiration
What is NPP?NPP refers to the net primary productivity of ecosystems. It is the amount of sugar made from photosynthesis when the amount of sugar burned during respiration has been deducted.
The total amount of sugar made during photosynthesis is the Gross Primary Productivity (GPP). This amount does not include the amount of sugar burned by respiration.
Thus, the equation relating the 3 variables would be:
NPP = GPP - Respiration
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Please help me please 20 points and ill give brainlyest!
Answer:
The correct answer is b not sure Baka
what is the main purpose of the human genome project?
a.to find dna in a cell
b.to find lost dna
c.to create new genes
d.to map all base pairs in dna
Answer:
d. to map all base pairs in DNA
PLS Help ASAP due today :'''(
Drag each label to the correct location on the diagram.
Label the parts of the brain.
pons
brain stem
thalamus
midbrain
cerebrum
hypothalamus
medulla
oblongata
cerebellum
right side
1
2
3
4
left side
5
6
7
8
Answer:
right side
1 thalamus
2oblongata
3 cerebellum
4 brain stem
left side
5 cerebrum
6 hypothalamus
7 pons
8 medulla
Explanation:
Because of temperature increases caused by global warming, identify the pattern of shift many North American animal and insect species are experiencing.
A.
ranges and niches are moving farther West
B.
ranges and niches are moving farther East
C.
ranges and niches are moving farther North
D.
ranges and niches are moving in all
Answer: C. Ranges and niches are moving farther North
Explanation:
Animals are moving north toward the North Pole to escape the heat. Towards the poles, the temperatures get colder. Because of global warming, the temperature zones move out towards the poles.
A young child has a middle ear infection: otitis media. There is a build-up of fluid, bacteria, and white blood cells, or pus, inside of the middle ear chamber. Why has this affected the child's hearing
A fossil of a new primate species is discovered. scientists find evidence that members of this species traveled long distances without putting their hands down on the ground and used tools. which trait would the fossil most likely have? a foramen magnum at the back of the skull a curve in the lumbar region of the spine a femur angled outward an opposable big toe
The trait would the fossil most likely have is a curve in the lumber region of the spine.
What is the concept of fossil?Fossils are remains or traces of animals and plants preserved in rocks. Remains are parts of an animal (eg bones, teeth, scales) or plant (eg trunks) and traces are evidence of its existence or activities (eg footprints).
From the fossils it is possible to see the evolutions that the animals suffered in this case it was a curve in the lumber region of the spine.
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Answer:
b. a curve in the lumbar region of the spine
Explanation:
How do you think the reef will react to a lionfish invasion if there was no sea urchins?
The population of reefs reduces drastically if there are no sea urchins since lionfish use them as a source of food. That way, the lionfish began feeding on the reef itself.
Give the term for the highest constant temperature
Answer:
It's also called a high temperature, hyperthermia, or pyrexia,
Choose all the answers that apply.
Stars:
1are classified by temperature and color
2are made mostly of hydrogen and helium
3orbit the sun
4are mostly found between Mars and Jupiter
5generate their own heat and light
Answer:
The 4th option is wrong . Stars are Mostly found between Mars and Jupiter.
Like the camel, many animals that live in soft sandy areas have large wide feet compared to their body size. The
large feet are an advantage in these environments because they -
are rapidly toughened by sharp sand grains
distribute body weight over a large area
allow rapid digging in the sand
Dreduce the vibrations caused by walking
Answer:
distribute body weight over a large area
Explanation:
This one's fairly simple. If you have large feet, then your body weight is distributed over a large area (you don't sink as much in sand). If your toes were small, massive body weight would sink the feet into sand.
Based on the graph, it can be concluded that the isotope which is most likely to be found with 6.25% of its original amount in 6 billion years is
Uranium-238
Thorium-235
Potassium-40
Rubidium-87
Potassium is most likely to be found with 6.25% of its original amount in 6 billion years because the half life of Potassium-40 is 1-1.5 billion years in graph. Thus the correct option is C.
If it half in 1 to1.5 billion years = 50% gain
1-1.5 billion years = 25%. gain
If we do that 2 more times we will get 12.5% and then 6.25% gain.
What is half life?
Half life is defined as the time required for half of the atoms of a radioactive substance to become disintegrated.
Our estimate is about 1-1.5 billion years so repeating that about 4 times we get around 4-6 billion years for it to gain 6.25%. From this it can be concluded that Potassium-40 as since it comes the closest to remaining at 6.25% its original amount after approximately 6 billion years.
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which type of orchid is the best for houseplant beginners?
Answer:
For those who are new to growing orchids or those who love the beautiful blooms, the Phalaenopsis orchid is considered to be the best orchid for beginners. Our online video will help you pick the perfect orchid for your home. Phalaenopsis orchids are also known as “moth orchids” for the shape of their petals.
I have a Phalaenopsis Orchid in my house, it's very easy to take care of. Like a fish, but fish cost more money.
Explanation:
Water and sun, that's all there is to it.
how to write a coma with out two independent clauses
Answer:
They can be made into one compound sentence with a semicolon alone between the two independent clauses
Explanation:
you can use a semicolon to separate two ideas (two independent clauses) that are closely related
Describe what pollination is and how it
happens
Explanation:
Pollution is:
the presence in or introduced into the environment of a substance or thing that has harmful or poisonous.
typically caused by man made things, like factories when they leak pollutant air into the atmosphere and other items like ships when they leak oil pollutants into the waters.