i need a better science grade so im trying to at least get an 80 percent, no lower grade

Answer:

technically I think the answer  is the last one I hope this helps

Explanation:

Answer:

Organisms are generally much different from their ancestors in the fossil record.

Explanation:

Today organisms are generally different from their ancestors in the fossil records because of the concept of evolution.

Evolution has caused ancient organisms to change drastically from their present day cohorts.

Answer: here it is :D

Explanation:As nouns the difference between thermosphere and troposphere. is that thermosphere is thermosphere (layer of the earth's atmosphere) while troposphere is troposphere. thermosphere. English. Noun. The layer of the Earth's atmosphere directly above the mesosphere and directly below the exosphere.

Answer:

thermosphere is thermosphere (layer of the earth's atmosphere) while troposphere is troposphere.

ation:

This layer also contains ratios of nitrogen and oxygen similar to the troposphere, except the concentrations are 1000 times less and there is little water vapor there, so the air is too thin for weather to occur. The thermosphere is the uppermost layer of the atmosphere.

Sand is best for the locating a drinking water well, it is free of rocks good for the water well, hence option A is correct.

It is a dry, light, warm, and observe to be acidic and low in nutrients. Sandy soils are frequently suggested as light soils due to their high quantity of sand and little clay (clay measures more than sand).

There are four different types of soil:

If soil comprises larger proportion of big particles, it is known as sandy soil. If the quantity of fine particles is comparatively higher, then it is named clayey soil. The quantity of large and fine particles is usually the same, then the soil is called loamy.

Therefore, sand is the best for the locating a drinking water well, hence option A is correct.

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Answer:

It is D.

Explanation:

Why is because some organisms are much different from their ancestors in the fossil record, while other organisms have mostly stayed the same. And that is how I know it is D.

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Answer: B. Chromosomes

Explanation: Chromosomes become visible, the nucleolus disappears, the mitotic spindle forms, and the nuclear envelope disappears. Chromosomes become more coiled and can be viewed under a light microscope.

Answer:

All living organisms need food, water, and shelter in order to grow and survive. Human activities can have a lot of impacts on different organisms; whether they’re good or bad. Humans may take away natural habitats for some by expanding into a previously untouched area. In the same sense, they might end up accidentally providing a food or water source. Although there is some good, humans should limit and change their activities in order to have a less impact on the lives of other organisms. We could create more national or state parks, which would make a safe haven for a lot of organisms. We could impose stricter punishments for people for litter as it harms organisms. We might create nature preserves in order to force humans to leave alone the other organisms in a certain area. Overall, we play a big role in a lot of different organisms lives and we need to make sure it’s a positive one.

Hope this helped, all written by me so no plagiarism(:

Explanation:

Human activity is a major threat to the planet's biodiversity. This is because human population growth thus far has been exponential, meaning that its growth rate stays the same regardless of population size. This makes the population grow faster and faster as it gets larger.

Populations may grow exponentially for some period, but they ultimately reach a carrying capacity when they become limited by resource availability. Humans, however, have continued to work around carrying capacity as they develop new technologies to help support the ever-growing population. This threatens biodiversity because the more humans there are, the more this displaces other species and reduces species richness. Human-mediated causes of biodiversity loss. Deforestation for resource mining or urbanization can displace native organisms. Deforestation for resource mining or urbanization can displace native organisms.

Answer:

false

Explanation:

they dont have identiacl only 2 diffrent. mitosis has the same not meiosis

Answer: false

Explanation:

Answer: Paramecium are heterotrophs.

Explanation: Their common form of prey is bacteria. A single organism has the ability to eat 5,000 bacteria a day. They are also known to feed on yeasts, algae, and small protozoa.

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Answer:

If we removed the producers from this food web, how would it affect the balance of the ecosystem? A. There would be an increase in consumers and decomposers. ... There would be a decrease in primary consumers and an increase in secondary consumers.

Answer:

There would be a decrease in consumers and decomposers.

Answer:

c

Explanation:

Answer:

a

Explanation: because the sun hits the surface which makes it warmer

Answer:

snakes and squirrels

Explanation:

According to this food web, hawks eat the organisms like Snakes and squirrels. Thus, the correct option is A.

The food web may be defined as the interconnection of a large number of the food chain with one another and forming a web-like pattern.

In a food web, one organism can hold more than one position. In other words, it is a series of branching lines rather than a straight line. The flow of energy is very difficult to calculate in the food web.

Hawks are the tertiary consumers that eat toads, snakes, squirrels, etc. So, hawks are carnivore organisms. Because of being the tertiary consumers, they significantly depend on secondary consumers.

Mushrooms are decomposers. So, options B and D are eliminated. Option C contains grasshoppers that feed on the grass directly. So, they are primary consumers in the food web.

Therefore, according to this food web, hawks eat the organisms like Snakes and squirrels. Thus, the correct option is A.

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Answer:

Technology such as lenses, magnifying glasses, and microscopes had an impact on the development of the cell theory. Below are some examples of how such technologies contributed to the cell theory. Robert Hooke is accredited with observing the first cells in 1665.

Explanation:

Answer:

No one should decide what anyone reads but ourselves. People, now matter how young or old, should be able to make the decision by themselves. If they want to read Manga, Horror books, Romance, Suspense, Mystery, Graphic Novels, Sci-Fi, Fantasy, Nonfiction, Narrative, Genre Fiction, Historical Nonfiction/Fiction, Poetry, Thriller, Biography, Memoir, Autobiography, Short Story, Literary Fiction, Science Fantasy, Paranormal Romance, Fairy Tail, Myth, Folktale, History, Adventure Fiction, Textbook, Prose, Fantasy Fiction, Magical Realism, Erotic Literature, Historical Romance, High Fantasy, True Crime, Occult Fiction, what ever they want to read they should be able to access them. Now I'm not saying young children's minds shouldn't be protected. For example, if I were to take your privilege of reading away and say that you are only allowed to read Fantasy books, despite your age, that would not be right and would cause civil disputes in the literary world. We should promote a cause that enables any aged children, especially young minds, to be able to pick from the entire literary universe. We shouldn't force people to integrate into books that we want, instead into books that everyone wants. In conclusion, no one should decide what we read but ourselves.

Explanation:

Feel free to give brainliest.

Have an amazing day everyone!

Answer:

d is your answer

Explanation:

The membrane is a gatekeeper as it only allows access to selected nutrients or cells, if it wants one type of nutrient to process, it will only choose that nutrient!

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Answer:

The cell membrane controls how materials move into or out of a cell, just like a gatekeeper controls the flow of traffic into and out of a parking lot. Movement of substances through a cell membrane WITHOUT using the cell's energy ; includes diffusion, osmosis, and facilitated diffusion.

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Answer:

genetic engineering

Answer:

Once a person has developed mumps they remain immune to that disease for the rest of their lives. Therefore if they come in contact with the virus again their immune system recognises the virus and eradicates it. To improve your immune system you can eat healthy and exercise often.

Explanation:

Answer:

The glow stick that was in the cup of hot water will be brighter once it is bent. The production of more light is evidence that the chemical reaction in the glow stick is happening faster. The reaction happens faster, because increasing the temperature increases the rate of a chemical reaction.

hope its helpful

Answer: microscopes

Similarly the development of microscopes drove, somewhat later in the same century, the discovery of cells; Hooke and van Leuwenhoek, like Galileo, were hands-on developers of their instruments.The discovery of the green fluorescent protein (GFP), increasingly sophisticated microscopes, and the development of in vitro assays that faithfully reproduce cellular functions are just a few examples of technical advances that have spurred on many areas of cell biology

Explanation:

Answer:

Explanation:

Flask with open (broken) neck- A swan neck flask, also known as a gooseneck flask, is a flask with a particular shape of tube leading into it. A test tube or other vessel may also have a "swan neck"

Flask with intact neck-

Answer:

So basically your teacher is asking you to plan out some of the steps that you want to take for your lab report. They already gave you the mandatory steps that are required in lab reports. Once you're finished planning out the structure of your lab report you work off of that template on another doc. I hope this will help you out on your lab report, good luck!

Explanation:

If this doesn't help you should consider emailing your teacher for clarification.