how does the shape of the worm change as it move

Answers

Answer 1
In earthworms, each segment can move independently, so that alternating contractions between the two different sets of muscles in many different segments create shape changes all along the body. This produces accordion-like body movements that help the worm push through soil and maneuver through small spaces within

Related Questions

What do the centrioles do?
a. help cell division b. generate energy c. help make protein d. protect the cell

Answers

Answer:

The answer is:

a.Help cell division

HEALP PLEASE!!!!!
Infer why doctors recommend people, especially elderly and those with weak immune systems, get the flu vaccine every year.
(1 point)
O They should get the flu vaccine because viruses mutate.
O They should get the flu vaccine because viruses do not mutate.
They should get the flu vaccine because their bodies already have a resistance.
O They should get the flu vaccine because their bodies do not build up resistance.

Answers

Doctors recommend people with weak immune systems to get the flu vaccine every year because viruses mutate and their bodies already have a resistance.

Flu is common viral infection caused by a virus and attacks the lungs, nose and throat.

Vaccine for flu infections helps the immune to recognize and attack antigens from the flu virus.

Virus are known to mutate. Because of this, a weak immune system might not recognize the new mode of the virus which multiplies and cause damage to the system.

Therefore, old people and those with weak immune system are always advised to get the vaccine every year because whenever new variant are discovered, vaccine are improved and help the weak immune to recognized and attack any variant of the flu virus.

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Cells are made from a large variety of different _____ and ____.

Answers

Answer:

Explanation:

they are made of nucleic acids, proteins, carbohydrates, and lipids

factors that affect the rate of osmosis​

Answers

Answer:

1).pressure

2).temperature

3).surface area

4).water potential

5).concentration gradient

If meteorologists study weather patterns, who studies longer-
term atmospheric phenomena like climate?

Answers

Answer:

climatologists

Explanation:

they are the ones studying the effects of global warming on earth's climate

Characteristics of Thallophyta​

Answers

Answer:

Characteristics of Thallophyta

1. They are usually found in moist or wet places.

2. This is due to the absence of “true roots” and vascular tissue that is needed to transport water and minerals.  

3.They are autotrophic in nature.

4. Most members of this group manufacture their own food.

5. Reserve food is generally starch.

hope this helps
Some characteristics of Thallophyta are:Plants that do not have well-differentiated body design fall in this group.Their body is not differentiated into root, stem and leaves.Their body is composed of mast cells called thallus. Hence they are termed thallophytic plants.The plants in this group are commonly called algae.They are predominantly aquatic.They are cryptograms, i.e., the reproductive organs of plants in this group are very inconspicuous. They do not have the ability to bear seeds.Examples are Spirogyra, Ulothrix, Cladophora, Ulva and Chara.

Which of the following is NOT a component of the cell membrane? * 1 point (a) Phospholipids (b) Sterols (c) Proteins (d) Nucleic Acid​

Answers

Answer:

d

Explanation:

nucleic acid is present in nucleus

not cell membrane

Answer:

Proteins

Explanation:

Proteins are large, complex molecules that play many critical roles in the body. They do most of the work in cells and are required for the structure, function, and regulation of the body's tissues and organs.

Scientists believe that green crabs , originally from Europe, reached U.S. shores in the mid-1800s after riding across the Atlantic in the ballast water on ships. Once here in North America, they travelled to Maine, where they have been present for more than a century. Green crabs are a non-native, or invasive species, organisms that have been transported via human activities and introduced to locations in which they previously did not occur. The green crab population in some areas of Maine has increased dramatically in recent years, and they have been feeding on shellfish resources such as blue mussels and soft-shell clams, threatening the state's third-largest wild fishery. The increase in the green crab population has coincided with an increase in ocean temperatures. A similar cycle occurred in the early 1950s when the ocean temperatures rose and the green crab population increased, devastating the soft-shell clam resource in Maine. What can be done to mitigate the environmental impact of this invasive species

Answers

Answer:

b

Explanation:

i got the queston right

Green crabs are exotic species is being transported through human activities. It can be mitigate by controlling their spread.

What are green crabs?

Green crabs are extremely rare in the environment. These are efficient predators and prey on clams and scallops and destroy sea-grasses by hunting and burrowing.

One must focus on the regulatory efforts for reducing green crab populations rather than focusing their management as commercial fishery.

Work should be done along with the industry and municipal shellfish programs to monitor and control the spread of green crabs.

Thus, the control of their population can help mitigate the environmental impact of this invasive species.

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Help for brainlest plz

Answers

Answer:

1. 0.24255319g/l

2. 2.7g/cm^3

3. 1.3g/ml

(im not sure about the units of measurements)

Explanation:

1. density = mass/volume

5.7g/23.5l = 0.24255319g/l

2. d=m/v

m=2700g, v= 20x5x10 = 1000cm^3

= 2700/1000= 2.7g/cm^3

3. d=m/v

m= 78g, v= 60ml

= 78/60 = 1.3g/ml

the chemical composition of proteins was discovered by

Answers

Answer:

In the 1950's, Linus Pauling became known as the founder of molecular biology due to his discovery of the spiral structure of proteins (Taton, 1964). Pauling's discoveries contributed to Watson and Crick's breakthrough of the DNA double helix.

Explanation:

Answer:

In the 1950's, Linus Pauling became known as the founder of molecular biology due to his discovery of the spiral structure of protein/composition

A lung infection that can be caused by polluted air is called what?

Answers

COPD
refers to not a single disease, but multiple diseases which make it difficult to breathe. These diseases include bronchitis and emphysema, and both conditions can be caused by damage to the lungs from air pollutants.

What is an EXAMPLE of a cell found in your body?

Answers

Answer:

blood cells

Explanation:

Red blood cell, white blood cell, stem cells, platelets, nerve cells, neurological cells, (nerve cells and neurological cells, I think are the same thing ha ha) muscle cells, cardiac muscle cells, skeletal muscle cells, cartilage muscle cells. That’s all I can think of right now, hope this helps.

what class does kingdom protoctista belong to?

Answers

Answer:

Paraphyletic group

I believe it is correct

Explanation:

Kingdom protoctista are in the eukaryotic class. They are single celled.

examples are Protozoa  and dinoflagetes.

5. Match the proper anatomical tem column B) with
the common name (column A) for the body re-
gions listed below.
Column A
Column B
1. buttocks
2. back
3. shoulder blade
4. front of elbow
5. toes
6. groin
7. forehead
8. lower back
9. sole of foot
a. inguinal
b. frontal
c. dorsal
d. lumbar
e. gluteal
f. antecubial
g. plantar
h. digital
i. scapular

Answers

1, 6, 7, and 9 I’m pretty sure

The correctly matched proper anatomical term with common names are:

1. buttocks - e. gluteal2. back - c. dorsal3. shoulder blade - i. scapular4. front of elbow - f. antecubial5. toes - h. digital6. groin - a. inguinal7. forehead - b. frontal8. lower back - d. lumbar9. sole of foot - g. plantar

Anatomical terms are used to describe specific body regions or parts. Matching the common names with the anatomical terms for the given body regions:

Buttocks - The anatomical term for buttocks is gluteal (e. gluteal).
Back - The anatomical term for back is dorsal (c. dorsal).

Shoulder Blade - The anatomical term for shoulder blade is scapular (i. scapular).

Front of Elbow - The anatomical term for the front of the elbow is antecubial (f. antecubial).

Toes - The anatomical term for toes is digital (h. digital).

Groin - The anatomical term for groin is inguinal (a. inguinal).

Forehead - The anatomical term for forehead is frontal (b. frontal).

Lower Back - The anatomical term for the lower back is lumbar (d. lumbar).

Sole of Foot - The anatomical term for the sole of the foot is plantar (g. plantar).

These anatomical terms are used in the medical field to precisely describe body regions and aid in effective communication among healthcare professionals.

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Water is:
H2O
output and input in both photosynthesis and
cell respiration
an output of photosynthesis, and an input of
cellular respiration
h
an input of photosynthesis, and an output of
cellular respiration
Rewatch
Next question

Answers

What do you want as an answer to that I’m confused
Hi how are you doing today Jasmine

A student constructs a model using a fan and a pile of sand shaped like a dune. The student turns on the fan, observes the model for changes, and lists several conclusions in a chart.
1. Wind cannot erode landforms.
2. Wind can reduce the surface heights of landforms
3. Wind cannot transport materials
4. Wind cannot weather materials.

Answers

Answer: Im sorry i dont kno

Explanation:

Based on the observations of the sand dune model with a fan, the conclusions provided in the chart are incorrect. In reality, each statement's opposite is true.

What is Sand dune?

A sand dune formed by wind or water flow is known as a sand dune. When there is a lot of loose sand present and the wind or water is powerful enough to shift the sand grains, sand dunes emerge. Beaches, deserts, and some riverbeds all contain sand dunes.

Based on the observations in the provided example, the following inferences are correct:

Landforms can be eroded by wind.Sand can be moved by wind and dumped elsewhere, altering the size and shape of landforms.Sand and other materials are transported from one location to another by wind, which is a significant agent of sediment transport.Materials can weather and degrade in the wind through abrasion and deflation.

Therefore, the conclusions given in the chart are false based on the observations of the sand dune model.

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Which of the following is an example of a proper fraction?
A.6/6
B.15/2
C.11/10
D.4/17

Answers

D because its less than one

What 3 features make science
different from other ways of
studying the universe?

Answers

Answer:

Science is a general way of understanding the natural world. Its three fundamental features are systematic empiricism, empirical questions, and public knowledge.

Explanation:

explain the methods of preparing vermicompost by tank method​

Answers

Answer:

1.To prepare compost, either a plastic or a concrete tank can be used. The size of the tank depends upon the availability of raw materials.

Collect the biomass and place it under the sun for about 8-12 days. Now chop it to the required size using the cutter.Prepare a cow dung slurry and sprinkle it on the heap for quick decomposition.Add a layer (2 – 3 inch) of soil or sand at the bottom of the tank.Now prepare fine bedding by adding partially decomposed cow dung, dried leaves and other biodegradable wastes collected from fields and kitchen. Distribute them evenly on the sand layer.Continue adding both the chopped bio-waste and partially decomposed cow dung layer-wise into the tank up to a depth of 0.5-1.0 ft.After adding all the bio-wastes, release the earthworm species over the mixture and cover the compost mixture with dry straw or gunny bags.Sprinkle water on a regular basis to maintain the moisture content of the compost.Cover the tank with a thatch roof to prevent the entry of ants, lizards, mouse, snakes, etc. and protect the compost from rainwater and direct sunshine.Have a frequent check to avoid the compost from overheating. Maintain proper moisture and temperature.

please mark me as brainliest

The largest area of ocean floor is the:
a. continental shelf

b.continental rise

c.continental slope

d. ocean basin

Answers

Answer:

The answer is D.

Explanation:

Reflective Question: In what other situations might it be important to use persisting?

Answers

Persistence may be ​required in a situation whereby an individual is having difficulties in achieving a goal.

Persistence means that an individual should continue to do a particular thing despite the difficulties that the person faces or the fact that other people wants the person to stop.

Successful people in the world are persistent in whatever they do. Even when one fails at first, the person must work harder till their goals are achieved.

In conclusion, as individuals, in order for us to achieve our goals, we should be persistent and never give up.

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Someone plz help me :(

Answers

Answer:

c

Explanation:

What is the rarest eye colour in the world?! Pls help!! It is my BIO homework...

Answers

Answer:

maybe... violet... or having two different eyes color?

Hopefully, this helps you!!

[tex]AnimeVines[/tex]

[tex] \huge \boxed{\mathfrak{Answer} \downarrow}[/tex]

It has been researched & found out that [tex]\boxed{\sf \: green}[/tex] is the rarest eye colour in the world. Only about 2% of the whole global population has them. Apart from green, -> grey, hazel & golden - brown are also not much common. The most common eye colour is => brown.

Where is the cell wall located

Answers

A cell wall is a rather stiff layer that surrounds a cell and offers additional support and protection outside of the plasma membrane. Bacteria, archaea, fungus, plants, and algae all contain them. Cell membranes do not surround cell walls in animals and most other protists.

an experiment was performed on a group of rats to see if they were affected by loud music. another group of rats was left in silence which group was the control group

Answers

Answer:

it would be Group B because they were not exposed to the loud music

HELPPPPPPP ITS URGENT!!

Answers

Answer:

all

Explanation:

represents an observation is fact

offers an explanation is theory

defines a relationship is laws

hope it helps

How many steps are in the scientific method?
2. What are the steps in the scientific method?
3. What is Science?
4. What is Pseudo Science?
5. Why is PseudoScience not accepted as Science?
6. What is Tragedy of the Commons?
7. How does Tragedy of the Commons relate to Southern Florida’s Water Resources?
8. What are the Earth’s Sphere’s and what is covered by each sphere?
9. What is the Carbon Cycle?
10. Draw a diagram of the carbon cycle.
11. What is a model in Science?
12. What is an experiment?
13. Why would I use a model instead of an experiment in science?

Answers

Answer:

1.The science method has 5 basic steps.

2. Make an observation. Ask a question. Test your hypothesis. Collect data. Examine the results. Draw conclusions. Report the results.

3. Science is the intellectual and practical activity encompassing the systematic study of the structure and behavior of the physical and natural world through observation and experiment.

4. Pseudo-science is a collection of beliefs or practices mistakenly regarded as being based on scientific method.

5. Pseudoscience is differentiated from science because - although it usually claims to be science- pseudoscience does not adhere to scientific standards , such as the scientific method, falsifiability of claims, and Mertonian norms.

6. The tragedy of the commons refers to a situation in which individuals with access to a shared resource (also called a common) act in their own interest and, in doing so, ultimately deplete the resources. ... In 1968 the term "Tragedy of the commons" was used for the first time by Garrett Hardin in Science Magazine.

7. First posited in 1968 by American ecologist Garret Hardin, The Tragedy of the Commons describes a situation where shared environmental resources are overused and exploited, and eventually depleted, posing risks to everyone involved.

8. They are called spheres because they are round, just like the Earth. The 4 spheres are the geosphere (all the rock on Earth) hydrosphere (all the water on Earth ), atmosphere (all the gases surrounding Earth), and biosphere ( all the living things on Earth).

9. Carbon Cycle is the series of processes by which carbon compounds are interconverted in the environment, including the incorporation of carbon dioxide into living tissue by photosynthesis and its return to the atmosphere through respiration, the decay of dead organisms, and the burning of fossil fuels.

11. A scientific model is a physical and/or mathematical and/or conceptual representation of a system of ideas, events or processes. Scientists seek to identify and understand patterns in our world by drawing on their scientific knowledge to offer explanations that enable the patterns to be predicted.

12. a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.

13. There may be more than 1 model proposed by scientists to explain or predict what might happen in particular circumstances. ... Consequently, models are central to the process of knowledge- building in science and demonstrate how science knowledge is tentative.

imagine a world without food wtite
write 5 points on it​

Answers

Answer:

Without food humans cant live so we cant imagine the world without food. As food is the source of energy .

Which of the following has
the greatest effect on primary
productivity?

A. altitude
B. nutrients
C. temperature

Answers

Answer:

b

Explanation:

without nutrients the plants can't make their own food to sustain life

when designing a n experiment to see if bigfoot likes apples, which house would be your control group?​

Answers

The control group will be the houses without apples.

A control group is set up in an experiment in other to be used to compare the outcome of the experimental group. The control group are subjects whose variables aren't changed throughout the cause of the study. This means that the control group are not given any treatment.

In the experiment above, The independent variable is the treatment added to our experiment, which are apples.

Hence, since the control group are not given the treatment, then the control group will be the houses without apples and are thus unchanged.

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