Can you please answer this i need your help Subject science

Answer:

corals, hydras, jellyfish, Portuguese men-of-war, sea anemones, sea pens, sea whips, and sea fans.

Explanation: hope it helped :)

Answer:

a

Explanation: because poop is really unhealthy and full of diseases making everything in the water a problematic factor?

Answer:

In most cases, no.

Explanation:

Some basic needs of an organism are an appropriate environment ( E.g. Having water for fishes, be it salty or fresh), have a reasonable temperature and pH value of its surroundings, and having enough food to sustain itself. You can even look at things like air composition.

There's no way an organism that normally lives in slightly alkaline water can survive in water with a pH of 3. Similarly, organisms can't survive in unsuitable temperatures, like how a polar bear can't survive in the desert.

In cases like food, they would die from starvation without appropriate amounts of food.

In essence, an organism is not likely to be able to grow in environments that do not meet their needs.

Some organisms adapt and change over time depending on the organisms, but most of them may die before adulthood.

Answer: I think its 2

Explanation:

Answer:The summer solstice occurs at the moment the earth's tilt toward from the sun is at a maximum. Therefore, on the day of the summer solstice, the sun appears at its highest elevation with a noontime position that changes very little for several days before and after the summer solstice.  The summer solstice occurs when the sun is directly over the Tropic of Cancer, which is located at 23.5° latitude North, and runs through Mexico, the Bahamas, Egypt, Saudi Arabia, India, and southern China.  For every place north of the Tropic of Cancer, the sun is at its highest point in the sky and this is the longest day of the year.

The winter solstice marks the shortest day and longest night of the year. In the Northern Hemisphere, it occurs when the sun is directly over the Tropic of Capricorn, which is located at 23.5° south of the equator and runs through Australia, Chile, southern Brazil, and northern South Africa.

Explanation:

Answer:

A. When two tectonic plates start to push into each other they can rise up and build mountains, or sink under and create deep valleys.

Explanation:

It is true

Answer:

B) salt

Explanation:

It is considered a substance because it has a uniform and definite composition.  Salt easily dissolves in water, but salt water cannot be classified as a substance because its composition can vary.

Hope this helped!!!

Answer: You can clean the water pollution by the water bottle activity.

Explanation:

You can do the water bottle filteration. From your house, you should find a large soda bottle or water bottle. YOu layer it with sand and gravel at the bottom. Line the top of the bottle with a coffee filter. This will allow for a natural filtration system.

You can find this on many science experiments websites because it is a common science fair project.

Search tool would be: homemade water filter

Answer:

Asteroid-small,rocky objects that orbit the sun

Axis-a real or imaginary line that something rotates on

Comet-cosmic balls of frozen gasses,rocks,and dust that orbit the sun

Diameter-a straight line that runs from one side of a figure and passes through the middle

Gravity-an invisible force that pulls objects towards each other

Kuiper Belt-an icy ring of frozen objects just outside of the planet Neptune’s orbit

Latitude-the measurement of distance north or south of the equator

Orbit-a regularly repeated path that one object in space takes around another

Revolution-the action of a celestial body going around in an orbit;the time taken by a celestial body to make a complete orbit;the rotation of a celestial body on its axis

Rotate-the process/act of turning or circling around something

Rotation-the action/process of rotating on/as if on an axis or center

System-a group of related things that work together as a whole

Theory-a plausible or scientifically acceptable principle/body of principles offered to explain something

Answer:

C. Mechanical

Explanation:

Mechanical digestion involves physically breaking the food into smaller pieces. Mechanical digestion begins in the mouth as the food is being chewed.

Answer:

Well I'm not smart either. But i'll give you the answer.

Explanation:

Since the population of gray squirrels and brown squirrels decreased, and the population of black squirrels increased, that means the gray and brown squirrels were eaten/left and didn't blend in very well to their habitat. However, the population of black squirrels increased, so they blended in well with their environment. This tells us that the color of the trees became darker, closer to black, since there were more of them.

Answer: in explanation

Explanation:

Over time the color of the trees changed to black or a dark color. Because the color of the trees changed the gray and brown squirrels were more noticeable to the foxes causing them to be killed off. This meant over time the squirrells with black fur survived and bred eventually populating the area with black squirrells.

Answer:

Thermal

Explanation:

Answer:

The lamellae of spongy bone will form an open for the porous network of bony branches, or beams, called trabecula.

It also gives the bone strength and make the bone lighter. This also allows room for blood vessels and bone substance. Subscribe to amiredagoat Yt pls

Explanation:

Answer:

The first one is A: Digestive system

The second is C: Glucose

The third is C: Insulin

Explanation:

:)

Answer:

answer is most likely B.

Explanation:

Because with climate/ weather change water can change easily for example water can evaporate as it gets hotter and a colder climate can kind of grasp more water.

Answer:

It is A

Explanation:

Two pathways come from the heart: The pulmonary circulation is a short loop from the heart to the lungs and back again. The systemic circulation carries blood from the heart to all the other parts of the body and back again.

Hope this helped :)

- Ella

Answer:

i think they look like that so the prisoners are see able and cant do any thing to escape.because the guards are walking by twenty four seven

Explanation:

Answer:

Earth is in the midst of its sixth mass extinction: Somewhere between 30 and 159 species disappear every day, thanks largely to humans, and more than 300 types of mammals, birds, reptiles, and amphibians have vanished since 1500. These rates do not bode well for the future of life on our planet, but what if extinction wasn’t permanent? What if we could resurrect some of the species we’ve lost?

For decades the notion of “de-extinction” hovered on the scientific fringes, but new advances in genetic engineering, especially the CRISPR-Cas9 revolution, have researchers believing that it’s time to start thinking seriously about which animals we might be able to bring back, and which ones would do the most good for the ecosystems they left behind.

Answer:

analogous I think

Explanation:

Answer:

WHALE

Explanation:

Answer:

Warm-blooded is an informal term referring to animal species which can maintain a body temperature higher than their environment. In particular, homeothermic species maintain a stable body temperature by regulating metabolic processes.

Explanation:

EEB

Answer:

Arthropods play an important role in maintaining the health of ecosystems, provide livelihoods and nutrition to human communities, and are important indicators of environmental change. Yet the population trends of several arthropods species show them to be in decline.

Explanation:

d

Answer:

the o zone

Explanation:

I think

Answer:

they are being constantly used by living things but plants make oxygen and we breath it in when we breath out we create carbon dioxide there for it is a continuing circle of things happening when this happens it leads to this if you get what im saying

Answer:

Plant cell

Explanation:

The plant has the largest vacuole than animal cells because in plant cells the larger central vacuole performs two functions, one is to store water and the other is to help the plant remain upright.

Answer: The plant has the largest vacuole than animal cells

Explanation: In plant cells the larger central vacuole performs two functions. I hope this helps :)