You catch, tag, and release 35 fish back into a pond. Then, you catch 70 more fish, 12 of which have tags on them. What is the best estimate of the number of fish in the pond?
a.
100
b.
150
c.
142
d.
204

Answer:

C. open and close to control evaporation

A location of dna

There are several differences between the two, but the biggest distinction between them is that eukaryotic cells have a distinct nucleus containing the cell's genetic material, while prokaryotic cells don't have a nucleus and have free-floating genetic material instead

Answer:

hopefully the diagram attached is helpful!

Explanation:

two main groups are ; bacteria and archaea

- they are single celled organisms that lack a nucleus

- bacteria cells walls contain peptidoglycan and archaea does not

- cell membrane in bacteria is is a lipid bilayer however in archaea it can be a lipid bilayer or a monolayer  

Answer:

carbon monoxide

I did the test and notes and got it right!!!!

Explanation:

Answer:

there is only one surface in which we can run off in rainy season and that is room

Explanation:

steffie matt

Answer:

On a sloped parking lot

Explanation:

Surface runoff can be referred as the flow of water, that occurs when the excess water flows from the storm water, melt water, flood, rain streams and rain fall. The fast moving water current takes along with it superficial layers like surface and sub- surface layers of soil. Hence, causes water erosion of soil. The slope parking lot will favor, surface runoff more likely than in a grassy prairie, mulched flower bed, or in a sand pit because the slope will provide a surface for free flow of water. There are chances that water gets absorbed by the soil in the grassy prairie, mulched flower bed and sand pit. Whereas the slopy surface of parking lot will not allow the water retention by soil, instead will accelerate the flow of water.

(Hopes this helps!)

The Answer Is "C"

Hope This Help's

Answer:

Bone is a solid tissue, which resists a high impact of forces in its major axis.

The function of this fabric is not to transmit sounds, since it does not provide the elasticity, and the necessary elongation that is needed to generate the rope effect as in the case of muzzle cords.

Explanation:

The more rigid and less elastic the fabric is, the less sound it will transmit.

Sound strings, or mouth strings, are those that tighten, are flexible and resonate with different vibrations, in the case of bone tissue, sound vibrations are not influenced in their conformation because they do not have the ability to transmit them. .

The bone tissue, transmits impact forces or high newton levels, does not fulfill the function of transmitting vibrations and emitting sounds in terms of this type of vibrations and their frequencies.

Answer:

(c)volcanic eruption

Explanation:

An event that may lead to primary succession is volcanic eruption.

Primary succession happens when pioneer organisms colonize an area that holds no life before. It usually happens when a new land is formed or when a bare rock becomes exposed to life.

When volcanic eruption happens, new rocks are formed from the molten magma and these rocks provide a surface that can be colonized by pioneer species such as lichen.

From there, the successional process continues with time until a stable community is formed, all other things being equal.

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Answer:

A.  lichen growing on rocks

Explanation:

Lichen growing on rocks and types of bacteria produce chemicals that weather minerals 3 to 4 times faster than normal.

Plants' roots, mosses, and lichen which grow on rocks highly responsible for biological weathering, hence option a is correct.

Rocks are biologically weathered by living things like lichens, mosses, and plant roots, among others.

When plants break apart rocks with their roots or root exudates, this is known as biological weathering. The delayed process might have a significant impact on how a landscape is formed.

Mosses and lichens are able to break down the rock on which they grow by producing various acids.

Therefore, lichens and non-vascular plants can speed up the weathering of the rock they grow on significantly, hence option a is correct.

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Answer:

The correct answer is "Biogeography".

Explanation:

The missing options for this question are:

-Comparative embryology

-Biogeography

-Bioinformatics

-Fossils

The correct answer is "Biogeography".

Biogeography is a field of study focused on how species have changed over its evolutionary history regarding its distribution and geographical localization. Biogeography particularly examines biological diversity patterns. The evidence of evolution between the ostrich and the emu populations is of biogeographical type, since they are located in different regions but they are exposed to similar habitats.

If an ecosystem was experiencing a prolonged drought, there would be a big decrease in the population. All living creatures require water, even the ones well adapted to little water. There probably would be as many planets, for the ones surviving would be ones managing to get water, or ones that can survive off little water. Now on the other hand the animals then wouldn't be getting enough food or water, so then again ones who would manage to survive would be ones adapted to little water and food or are excellent hunters.

  You can also expect some animals to leave the ecosystem look for a better source of water and food.

hope this helps to some degree

The diversity, as well as the number of individuals among different species, may decrease gradually due to the scarcity of water.

An ecosystem may be defined as the place or an area where organisms of different species live together and interact with one another for the purpose of food, shelter, and space.

Every living organism on the earth's surface requires water in order to fulfill its requirement for cellular and metabolic activities.

But if the ecosystem experiences a prolonged drought, the physiology of all living organisms is disturbed due to which they leave the ecosystem, hence the number of species gradually lowers.

Therefore, it is well described above.

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Answer:

Commensalism

Explanation:

One organism benefits and other is unaffected.

Answer:

Scientists believe that the reason Hawaii has so many volcanoes is because it is located above a hot spot that is suspected to start at earths liquid core.

Explanation:

Answer:

You type a text message, which your friend shows to a third party, who reacts to it.

Explanation:

Copied from google.

When a message is shown to a friend who shows it to another person.

A group of organs called glands makes up your endocrine system. These glands, which may be found all over your body, produce and emit hormones.

Hormones are substances that communicate with your organs, skin, muscles, and other tissues through your blood to coordinate various bodily activities. These messages instruct your body on what to do and when.

The level of hormones in your blood is regularly monitored by your endocrine system. In order to transmit the message, hormones send their messages by locking them into the cells they intend to reach.

When your hormone levels increase, the pituitary gland signals other glands to stop manufacturing and releasing hormones. The pituitary gland has the ability to tell other glands to manufacture and release additional hormones when levels fall below a specific threshold. Homeostasis is a mechanism that functions similarly to your home's thermostat. Almost every process in your body is impacted by hormones.

Therefore, it is like the scenario where a message is shown to a friend who shows it to another person.

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Weather refers to the short-term atmospheric conditions, such as temperature, precipitation, humidity, wind speed, and cloud cover, that occur in a specific area over a short period of time, typically days or weeks.

Climate, on the other hand, refers to the long-term average weather patterns observed in a particular region over a period of decades to centuries.

Weather is the day-to-day variation in atmospheric conditions, including temperature, humidity, precipitation, wind speed, and cloud cover. It describes the current state of the atmosphere at a specific location and can change rapidly. For example, one day may be hot and sunny, while the next day may be cloudy and rainy. Weather conditions are influenced by various factors, such as air pressure systems, temperature gradients, and local geography.

Climate, on the other hand, represents the average weather patterns and conditions observed in a region over a long period of time. It is determined by factors such as latitude, elevation, ocean currents, and prevailing winds. Climate provides a broader perspective and encompasses the typical range of weather conditions experienced in a particular area. It takes into account long-term trends, seasonal variations, and averages of weather parameters.

While weather can change from day to day or even hour to hour, climate reflects the long-term patterns and trends in weather. For example, a region with consistently high temperatures and low rainfall throughout the year would have a hot and arid climate, regardless of occasional variations in daily weather conditions.

In summary, weather describes short-term atmospheric conditions, while climate represents the long-term average weather patterns observed in a specific area.

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Answer:

C) Eikaryotic cells can be unicellular and multicellular

Answer:

B. Eukaryotic cells are considered very primitive and basic

Explanation:

Prokaryotic cell is considered to he more primitive than eukarya

ANSWER :

The deeper layers are too dark for photosynthesis to occur.

Explanation:

Photosynthesis is a unique process to autotophic organisms. It involves the use of light energy from the sun to manufacture organic molecules (food). As the phenomenon implies i.e. PHOTO - LiGHT, light is an unnegotiable requirement for photosynthesis to take place. Autotrophs are able to perform this process because they contain pigments (Chlorophyll) that can trap energy from sunlight.

In an aquatic ecosystem, phytoplanktons and other photosynthetic organisms like aquatic plants are the autotophic organisms. They are found in the upper layer of the water so that they can reach light from the sun. The light from the sun cannot travel deep down the water making the deep parts of the ocean be deprived of light.

This is the reason why photosynthetic organisms cannot be found in the deep parts of the water as they will be unable to have access to the light from the sun in order to perform photosynthesis.

Answer:

the answer is a

Explanation:

Answer:

The correct answer would be - release/excretes.

Explanation:

In ponds, rivers, or similar ecosystem nitrogen cycle is completed with the help of the fishes. In this ecosystem, the nitrogen cycle initiates with the eating plants or fish food by the fishes and performs metabolism and cellular respiration which produces byproduct ammonia and organic nitrogen as animal waste.

This waste is released or excreted by the fish in the water where the beneficial bacterium helps in restoring nitrogen back to the atmosphere by breaking these wastes.

Answer:

answer is

with love,

Martinez jade

Answer:

cell theory

Explanation:

Answer:

Aluminium  - Open Pit (or Open Cut Mining)

Tin  - Placer Mining

Copper - Underground Mining

Explanation:

Open Pit Mining: Another name for open pit mining is open-cast or open cut mining. In simple terms, this involves removing topsoil or earth in order to expose and access the minerals beneath them. This type of mining is usually applied when the mineral deposit is close to the earths surface.

A typical feature of open-pit mines is that they leave very wide open pits though the actions of excavators.

Besides Aluminium, other types of minerals which can be mined using this method are: Bitumen, Clay, Coquina etc

Placer Mining

Placer deposits (that is minerals that have been concentrated on a location by weathering are usually accessed by the use of water. This method is mostly connected with the retrieval of minerals within water bodies. Water is used to dig up, and collect heavy minerals from such deposits.

Underground Minning

The entrance into underground mines can be horizontal or vertical.

An underground mine is simply a mine that is beneath the surface of the earth.

Cheers

The extraction of the minerals and the resources from below the earth's surface is mining. Aluminium is extracted by open pit, tin by pacer and copper by underground mining.

Open-pit or Open Cut Mining is the method of Aluminum extraction. The method involves the removal of the topsoil to access the minerals found in the earth layers. This can be done to extract the minerals that are not found too deep in the layers.

In open-pit, open and wide pits are dugged to extract the minerals with the help of the excavators. It can also be used for the extraction of Coquina and clay.

Placer mining is the method that is based on mineral deposition and the process of weathering is used for the removal or the extraction of the minerals from the water bodies in which they got deposited.

Underground mining is the technique of mining that is done for the extraction of minerals by the underground vertical or horizontal portals or openings in the earth.

Therefore, Aluminium will be extracted by option 2. open pit, Tin by option 3. placer and copper by option 1. underground mining.

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Answer:

NaCl

Explanation:

It's a compound.

Answer:

NaCl

Explanation:

because it is more than one element.

Severe headache is symptoms of meninges. thus option A is correct.

Meningitis is an infection of the protective membranes that surround the brain and spinal cord (meninges). It can affect anyone, but is most common in babies, young children, teenagers and young adults. Meningitis can be very serious if not treated quickly. Meningitis is usually caused by a viral or bacterial infection.

Some common symptoms of meningitis:-

Sudden high fever.

Stiff neck.

Severe headache that seems different from normal.

Headache with nausea or vomiting.

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Answer:

3

Explanation:

Answer:Three Parts of Cell Theory

Explanation:

All organisms are made of cells. Cells are the smallest unit of life. ...

Cells are the most fundamental unit of life. Organisms can be single cells, which hold all of the components necessary for a metabolism, or they can be more complex. ...

Cells come from other cells.