Can someone help me please

By definition, each living animal has a single cell, all living shapes are formed out of a single cell, and most living cells originate from other living cells, as demonstrated by the cell hypothesis. It has been recognized that this theory is incorrect.

The degree to which chromatin is compacted greatly affects its accessibility for transcription, and thus, gene expression.

This is the process which involves copying a segment of DNA into RNA in organisms.

When chromatin is condensed, DNA becomes less accessible for transcription factors and vice versa which was why it was chosen as the most appropriate choice.

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Answer:

it is the outermost layer of the earth

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B. It is the outermost layer of the Earth.

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Answer:

• government regulations

• convince framers to avoid deforestation

• avoiding single-use packaging, eating sustainable food,

•Ordinary people can help stop deforestation by eating less meat

Answer:

Government Regulations. ...Banning Clear-Cutting of Forests. ...Reforestation and Afforestation. ...Reduce Consumption of Paper. ...Educate Others. ...Eat Less Meat. ...Purchase from Sustainable, Forest-Friendly Companies. ...Reduce Consumption of Deforestation Prone Products.

Answer:

I'm going off the top of my head for this one, and this is an educated guess, so check it if you would like to. When the norepinephrine binds to a protein, then the protein relays the info to the cells that are required to do the specific action. This is why we feel a sense of stress, elevated heart rates, or high alertness.

(I'm 13 so you might want to check a lot)

Answer:

Soil living organisms compromise from mammals (such as rats) to micro organisms (such as nematodes and protozoa). Soil organisms help in the modification of soil, and also in the decomposition of organic matter. However they can also pose as a treat to to some crops, as they are responsible for some plant diseases.

Explanation:

When living organisms breathe they give out carbon dioxide gas as a waste product. Carbon dioxide gas can be detected (identified) using a carbon dioxide indicator solution called bromothymol blue. To find out if there are living organisms present in the four different levels of soil takenfrom the deciduous forest.

Answer:A.

Explanation:

Enzymes have a specific shape for an active site so for the function to happen the specific shape for the substrate that can fit in the active site is needed for them to connect and propose a function.

Closing. Both DNA copy and Transcription in the age of a new copy of the DNA in a cell. DNA transcription is involved in replicating the DNA into RNA, while DNA replication creates another copy of DNA. Both courses are included in the production of new nucleic acids- DNA or RNA.

An ecosystem with higher levels of biodiversity is more stable than another with lower levels because they are better able to withstand stresses like disease or climate change.

The term biodiversity refers to all of the variations (both genetic and phenotypic) in a given population.

Biodiversity is a fundamental subject to maintaining the equilibrium (homeostasis) of the whole ecosystem.

Higher biodiversity allows populations to face environmental changes such as diseases or climate change.

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Answer:

Because of the universality of the genetic code, the polymerases of one organism can accurately transcribe a gene from another organism.

Answer:

We know energy is transferred because it is exchanged at each level when one consumer eats another consumer.

You can provide evidence by comparing the units at each level.

Answer:

just study

Explanation:

Answer: c

Explanation: correct answer

Streak plates are used to test minerals because they show you the color of the mineral in powdered form. So, the correct option is C.

Small pieces of unglazed glass or porcelain are known as streak plates, and they are used in mineralogy to assess the streak color of a mineral. They are usually a few inches in length and about an inch in width.

The streak of a mineral is its color after it has been ground into a fine powder and rubbed across a streak plate. Because some minerals have recognizable colors that differ from their actual color, it can be helpful to identify them.For example, hematite is a dark brown mineral with bright red streaks. You can differentiate hematite from other dark brown minerals by looking at the color of the streaks.

Therefore, the correct option is C.

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Answer: I hope this helps you! :3

Explanation:

Step 1: List down the characteristics

Pay attention to the specimens you are trying to identify with your dichotomous key. List down the characteristics that you can notice. For example, say you are trying to classify a group of animals. You may notice that some have feathers whereas others have legs, or some have long tails and others don’t.

Step 2: Organize the characteristics in order

When creating your dichotomous key, you need to start with the most general characteristics first, before moving to the more specific ones. So it helps to have identified the more obvious and less obvious contrasting characteristics among the specimen before creating your dichotomous key.

Step 3: Divide the specimens

You can use statements (i.e. has feathers and no feathers) or questions (does it have feathers?) to divide your specimens into two groups. The first differentiation should be made on the most general characteristic.

Step 4: Divide the specimen even further

Based on the next contrasting characteristic, divide the specimen further. For example, first, you may have grouped your animals as have feathers and have no feathers, in which case the ones with feathers can be categorized as birds while you can further subdivide the ones that have no feathers as having fur and having no fur. Continue to subdivide your specimen by asking enough questions until you have identified and named all of them.  

Step 5:  Draw a dichotomous key diagram

You can either create a text-based dichotomous key or a graphical one where you can even use images of the specimen you are trying to identify. Here you can use a tree diagram or a flowchart as in the examples below.

Step 6: Test it out

Once you have completed your dichotomous key, test it out to see if it works. Focus on the specimen you are trying to identify and go through the questions in your dichotomous tree to see if you get it identified at the end. If you think the questions in your dichotomous key needs to be rearranged, make the necessary adjustments.

Answer:

The Bushmen of the Kalahari desert, also known by the name “khoi-San”, used Hoodia gordonii for thousands of years to ward off hunger and thirst while hunting and looking for food. The active ingredient in hoodia cordonii is called p57, a steroidal glycoside, and it is this ingredient that is thought to suppress appetite.

polyp should be the answer

Answer:

An ecosystem that contains insects, water, algae, and birds all work together by feeding one-another.

Explanation:

Algae are typically found within water. Algae use carbon dioxide, converting water to organic matter and oxygen. They are important sources of dissolved oxygen in a water confine.

Now, since algae help water by oxygenating it, living things are able to drink the water.

..This helps the bird, since it needs to drink water. As all living things do.

Sorry if this is a little confusing!

Answer:

Answer: Inside the air sacs, oxygen moves across paper-thin walls to tiny blood vessels called capillaries and into your blood. A protein called hemoglobin in the red blood cells then carries the oxygen around your body.

The amount of variation is reduced when a specific trait continues to be bred.

Artificial selection is the process in which organisms are chosen by human for the breeding purpose in order to get the desired characteristics.

So we can conclude that It reduces the amount of variation when a specific trait continues to be bred.

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Answer:

1000 thats all theres to it

Explanation:

i checked

A space where water from various sources drains is called a watershed. The water from streams and rivers gets drained to a common outlet. The answer should be blank 1 factors, blank 2 human and blank 3 is food web.

A watershed is a section of drainage basin or "sheds" water into a particular body of water.

A watershed exists for every body of water. Rainfall and snowmelt are channeled into streams and rivers by watersheds.

These smaller bodies of water drain into larger bodies of water, such as lakes, bays, and oceans.

Abiotic and biotic factors enter and flow through the watershed. These can include plants, small microorganisms, soil, small rocks, and so on.

Human impacts have an impact on the food chain because activities such as deforestation, industrial emissions, and fuel combustion cause environmental changes that harm animals and plants in the ecosystem.

The food web depicts the energy flow in an ecosystem from producers to consumers and represents how energy is passed from plants to consumers as well as their interdependence.

Thus, it can be concluded that the blanks are factors, human and food web respectively.

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Answer:

Kitten

Cactus

Mushrooms

Bacteria

so all but Rock

Because only living things have cells

Answer: B

Explanation: You're Welcome

Answer:

B. Temperatures decrease from the northeast to the northwest.

Explanation:

Answer:

Paraphrasing Readers re-state and re-write text in their own words to capture the main focus of the reading. This strategy forces readers to pay close attention to the author's ideas and helps improve the readers’ level of understanding. Predicting Readers make predictions or “best guesses” about what will happen next.

Explanation:

Answer:

Bat echolocation calls vary in their dominant frequency approximately between 11 kHz (e.g. Euderma maculatum; Fullard & Dawson 1997) and 212 kHz (Cloeotis percivali; Fenton & Bell 1981). Most insectivorous bats call with dominant frequencies between 20 kHz and 60 kH

The phase of cell division shown in the attached image is anaphase.

Cell division is the process whereby a single cell forms two daughter cells.

Cell division involves the following stages as follows:

In the anaphase stage, the chromosome is separated into opposite poles by the centrosomes.

Therefore, as depicted in the image, the phase of cell division shown in the attached image is anaphase.

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Several factors were important for the extinction of mammoths to mastodons, and natural selection of the elephant, mainly the ecosystem they lived in and the search for food.

The mammoth is an animal that was once extinct and belonged to the genus Mammuthus and the family Elephantidae which included the proboscidians. Elephants differ from mammoths in that mammoths had their bodies covered with hair. Also, elephants are slightly smaller than mammoths.

Both were herbivores, but the mastodons had conical-shaped teeth designed to crush leaves and branches more easily. Mammoths had rough molars, allowing them to cut through vegetation and graze like modern elephants.

Whit this information, we can conclude that several factors were important for the extinction of mammoths to mastodons, and natural selection of the elephant, mainly the ecosystem they lived in and the search for food.

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Answer: B C E

Explanation: Usatestprep