Not Biology but Science - 8th Grade
To find the index fossil, write the best choice below to describe each fossil.
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Answer:
32 is 10
Explanation:
Related Questions
hello! needing assistants :p
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Answer:
The DNA unzips
A strand of RNA is made.
The RNA leaves the nucleus.
The RNA moves to the ribosome.
A protein is produced.
ixl questions
Which two of the following organisms are tertiary consumers in this food web?
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Answer:
Snowy owl and the Rough-legged Hawk.
Explanation:
The chart is pretty self explanatory and easy to understand so I'm sure that these are the correct answers.
Identify the controversies, 2 good and 2 bad, of the use of stem cells. Then explain why they are good and bad.
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Answer:
i'm doing this in science rn but i'll brief it is when using it there is no or slight risk of rejection and can be used immediately
Explanation:
but thats more to do with the gcse exdcel question to evaluate the use of stem cells from a patients own bone marrow instead of an embryo
Red Grouper
Catch Year Average Mass (kg) Mature Males Estimated Population (millions)
1990 22.3 17.5
1991 21.6 18.2
1992 21.4 14.4
1993 20.9 13.5
1994 20.2 13.2
1995 20.3 14.2
1996 19.7 10.9
1997 19.8 10.8
1998 18.8 9.5
1999 17.9 9.4
This chart shows the annual catch statistics for the red grouper for the state of North Carolina during the 1990’s. Red grouper begin their lives as females, and the largest fish change sexes to become male during mating season. Only large females mate with these males and lay eggs.
You are a fisheries biologist for the state of North Carolina. You are charged with protecting the fish population, while also keeping professional fishermen from losing their jobs. Based on the chart above, what would you conclude and what would your solution be?
A) There is a serious problem with overfishing of red grouper, so there must be a problem with other fish as well. All fishing for any species should be banned.
B) There is not a very serious problem. The smaller size and population are probably just due to some bad years. Do nothing and monitor the situation.
C) There is a problem with overfishing. Ban fishing for large fish so their size and population can recover, but allow the fishermen to take smaller fish.
D) There is a problem with overfishing of red grouper, but the fishermen need to stay in business. Bring in another species of grouper from Australia, so that there are more fish to catch.
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Answer: C
Explanation: There will still be fish left, you don't want to take Australia's fish, because then they will keep needing more
Scientists found a layer of rock with several different fossils in it, as shown in the image. Based on the model, which of these fossils are the oldest and which are the newest? Explain your answer.
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Answer:
The oldest is section A, and the newest is section B.
Explanation:
First of all, the bottom most layer is almost always the oldest, because when rocks form, they don't go "hey lemme form under you", they form on top.
Second, bottom most layer is has the simplest fossils and the fossils are the same. You can see that as the higher section you go, the fossils are more complex and have more variety. Which is because of evolution.
Third, I don't know if this counts, but the bottom has the least color so I'm guessing that means that it has been decaying and whatever else you wanna call it than the other layers. Whereas the top is the most colorful, in my opinion.
Match the various types of intrusive rock.
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Answer:hi
Explanation:
lol sorry i just need points
Imagine you want to perform an experiment to show how a plant fossil is formed. You place leaves on a layer of sand in a small container, then cover the leaves with water. You let the leaves sit in the water for one week. what should you do next?
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Answer:
well maybe put some leaves on the bottom an then but sand on top of them to see if it would come to the top
Explanation:
hope this helps
Some flatworms reproduce through fragmentation. What is a disadvantage of this method? (1 point)
It is a process that does not result in many offspring relative to sexual reproduction.
It is a much more complex process than sexual reproduction.
It is a process that leads to lower genetic diversity than sexual reproduction.
It is a very slow process relative to sexual reproduction.
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its the lower genetic diversity one
List an adaption for organisms avoiding high temperatures
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Answer: three adaptation for avoiding high temperatures are; 1)going underground. another good way of avoiding the heat is burrowing underground. 2)high tolerance. 3) releasing heat off from their body. hope it helpz!!!!
Answer:
Some endotherms are equipped with isulation in the form of fur, feathers or blubber. To cool down, mammals sweat or pant. Hibernation is another strategy some mammals use to conserve heat in winter by slowing down metabolic processes.Explanation:
Explain why the plants' cortex would serve as the best food source for animals? a) The cortex contains stored water and food by plants b) The cortex is the easiest part of the plant animals can eat c) Animals can easily digest the cortex d) All of the above are true statements.
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Answer:
D All of the above are true statements
Explanation:
Hope this helped. : )
How do toxic chemicals affect people and animals?
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Answer: Exposure to these toxic chemicals can cause harm to human health and the animals exposed to them in the environment. Infants and children are especially at risk. Some toxic chemicals impair development, some affect reproduction and disrupt body chemistry, and some cause cancer.
Strawberries can reproduce from seeds found in the fruit or from special stems that take root in the soil and become plants of their own. What are these two processes called? (1 point)
Sexual reproduction is from the stems, and asexual reproduction is from the seeds.
Fragmentation is from the seeds, and asexual reproduction is from the stems.
Vegetative reproduction is from the seeds, and sexual reproduction is from the stems.
Sexual reproduction is from the seeds, and asexual reproduction is from the stems.
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Answer:
Sexual reproduction is from the stems, and asexual reproduction is from the seeds Explanation:
Please Help me (I'll give brainlest) (LIMITED)
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Answer:
C is correct I think
Explanation:
A: Couldn't be because there is one less source that is consuming the algae, so algae wouldn't decrease
B: Number of pike wouldn't increase because it would be getting less food
C is correct because there would be less pike because there would be less food for them, so fishermen would catch less
D: Same explanation as B but for Dragonfly larvae
Please Help me (I'll give brainlest) (LIMITED)
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Answer:
Explanation:
it may be b just saying and if you get it wrong well blame it on me
Answer:
The most helpful organism to decompose fallen leaves are:
Letter B. Bacterias.
Explanation:
Because bacterias are small and abundant microbes in the soil. They play an important role in decomposition of possibly all types of organic matter present in the dead remains. They are responsible for the formations of compost and humus that are in the soil.
Hope this helps you out! ^^
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Which body system or systems are affected by diabetes? (highlight all that apply)
digestive
respiratory
circulatory
Which molecules are affected by diabetes? (highlight all that apply)
oxygen
glucose
amino acids
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answer to the second question is glucose
Match the term to the correct definition. 1. pistil 2. stamen
a. the female structure of the plant b.the male structure of the plant
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Answer:
the female structure of a plant is pistil
the male structure of a plant is stamen
The femal part is a pistill
The male part is a stamen
Hope this helps.
Explain the difference between a dry mount slide and wet mount slide?
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Answer:
hello so from my understanding of the qeustion.
Explanation:
a dry mount slide is just rocks and a wet mount slide is mud trees small rocks and bushes
do what it says on the image (2 minutes left)
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Give two examples of igneous rock and explain the difference between them.
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!!!! Please help me !!!!!!!!!!!!!!!!!!
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Answer:
1. A climate zone is an area that has its own distinct climate. They also have their own type of vegetation and wildlife. Some of these zones found around the world include: Temperate - Mild temperatures and moderate rainfall. Tropical - Warm temperatures and lots of rain.
2. can't do 2nd question search it up
3. North and south poles
i don't know the last 2
Answer:
2. is polar zone , temperate zone , tropical zone , tropical zone, temperate and polar zone that is from top to bottom hope this helps
Explanation:
Explain how the establishment of judicial review affects the Legislative and Executive branches of government.
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Answer:
The ability to decide if a law violates the Constitution is called judicial review. It is this process that the judiciary uses to provide checks and balances on the legislative and executive branches.
Some flatworms reproduce through fragmentation. What is a disadvantage of this method? (1 point)
It is a process that does not result in many offspring relative to sexual reproduction.
It is a much more complex process than sexual reproduction.
It is a process that leads to lower genetic diversity than sexual reproduction.
It is a very slow process relative to sexual reproduction.
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The disadvantage of fragmentation is that it is process that leads to lower genetic diversity than reproduction through gamete fusion. The correct option is C.
What is fragmentation?Fragmentation is a type of asexual reproduction or cloning in which an organism is split into fragments in multicellular or colonial organisms.
Each of these fragments matures into fully grown adults that are clones of the original organism.
Planarians can reproduce asexually by simply tearing themselves into two pieces a head and a tail which then fuse together to form two new worms in about a week.
Due to the difficulty of studying fission, when, where, and how this process unfolds has remained a mystery for centuries.
The disadvantage of fragmentation is that it results in less genetic diversity than reproduction via gamete fusion.
Thus, the correct option is C.
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PLEASE HELP WILL MARK BRAINLIEST Look at the following diagram of an energy pyramid and label the parts. (10 points)
Energy Pyramid:
Field in Kansas
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Answer:
Check out the image
Explanation:
The formatting for D. kinda confuses me, but heat loss is what I took from it. Hope it helps!
answer pls i need help
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How do weathering and erosion differ? (4 points)
Weathering breaks down rocks; erosion moves them.
Weathering has to do with air; erosion has to do with rocks.
Weathering occurs only in winter; erosion occurs year-round.
Weathering can be chemical or physical; erosion is only chemical.
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Answer:
Weathering breaks down rocks; erosion moves them.
Explanation:
You can think of weathering as the overall tear-wear on rocks. Erosion is just the process that moves the rocks away.
Weathering breaks down rocks; erosion moves them is the difference between weathering and erosion.
What is Weathering?The process of weathering involves fragmenting the Earth's surface. Wind, water, ice, vegetation, and temperature fluctuations are frequently the causes of weathering.
Similar to weathering, erosion also involves the movement and deposition of weathered materials. Wind, moving water like rivers, and even the glaciers' slowly moving ice all contribute to erosion. Additionally, living things can cause erosion.
When mudslides occur, both weathering and erosion can happen very quickly. Additionally, weathering and erosion can happen extremely gradually, as shown in the way stream beds build when water trickles across them.
Therefore, Weathering breaks down rocks; erosion moves them is the difference between weathering and erosion.
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Because the worldwide demand for energy is growing, chemists are
working to
a.
find new sources of energy.
c.
develop new batteries for electric cars.
b.
develop new ways of conserving energy.
d.
all of the above
Please select the best answer from the choices provided
A
B
C
D
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Answer:
D. all of the above
Explanation:
Answer:a is the answer for your question
Explanation:
Help me please giving brainliest
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Explanation:
24.1 degree Celsius and 84.4 degree fahrenheit
Look at the diagram of the rock cycle below.
Which part of the cycle is missing?
A.
sedimentation
B.
melting
C.
crystallization
D.
mineral integration
Answers
it’s melting
From the diagram of the rock cycle the missing part is ( B ) ; Melting
Magma is a hot liquid/semi-liquid rock that is usually formed under the earth due to high pressure and temperature present in the inner core of the earth. magma is obtained by the melting down of existing rocks ( Igneous, sedimentary and metamorphic rocks ) under high pressure and temperature in the earths core.
Magma is released to the earth surfaces during volcanoes therefore the missing term in the rock cycle is melting
Hence we can conclude that from the diagram of the rock cycle the missing part is Melting.
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Many people install solar panels on the roofs of their homes. They can control the angle of the panels so to receive the most amount of sunlight. How might someone adjust the angle of their solar panels during the summer and winter differently, so
to maximize the amount of solar energy they collect?
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Answer:
(check the explanation)
Explanation:
During summers, sunrays hit the surface of the earth at an almost perfectly vertical angle. Therefore, in summers it is best to adjust the angle of the solar panels to be vertical to maximize the amount of solar energy collected.
During winters, the sunrays hit the surface of the earth at a slanted angle. Therefore, the solar panels should be adjusted at a slanted angle to maximize the amount of solar energy collected.
What Type?
Cold Front Warm Front Occluded Front Stationary Front
1- What type of front produces gentle rain showers?
2- What type of front involves 3 different air masses?
3- What type of front may have clear skies?
4- What type of front creates violent thunderstorms?
5- What type of front is stalled or still?
6- What type of front has rain showers and thunderstorms?
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2) warm
3) cold
4) warm
5) warm
6) warm
A cold front is defined as the leading edge of a cold mass of air at ground level that replaces a warm mass of air and lies within the apparent surface of low pressure that forms behind an extratropical cyclone which occurs on the leading edge of cold air. The convection pattern called the cyclone's dry "conveyor belt" flow.
These front forms when a cold, dense air mass pushes under a warm, lighter air mass which forces the warm air to rise. The cold air advances, replacing the warm air at the surface.
Thus, Cold front may have clear skies and creates violent thunderstorms.
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