What are the unique properties of the echinoderms within higher invertebrates?

Answers

Answer 1

Answer: The unique property of an echinoderm within higher invertebrates is their radial symmetry. These echinoderms include the famous starfish, sea urchin, sand dollars, sea cucumbers, and sea lilies. They are found at the ocean depth, form the intertidal zone to the abyssal zone.

Related Questions

Which one of the following accurately describes the reactions within photosynthesis? A. The light-independent reactions use ATP and NADPH. (B.) The light-independent reactions are responsible for making ATP and NADPH. C. The light-independent reactions use the sunlight to drive its processes. D. The light-dependent reactions are responsible for making sugars. I put B but it was wrong.
Recently, some crop plants were genetically modified to be immune to the effects of weed killers. Which of the following should be determined before planting the resistant crop in fields?A: Could the gene for resistance be passed on to the subsequent generations of crops?B: Could the gene for resistance to weed killers pass naturally from the crop plants to weeds?C: could the gene for resistance increase the yields of the crop as compared to unmodified varieties?D: Could the gene for resistance negativity affect the genetic diversity of the crop itself?
A failure of the red-sensitive nerves in the eye to respond to light properly causes A. astigmatism. B. color blindness. C. chromatic aberration. D. farsightedness.
The earth's four main spheres continuously interact to support life and balance Earth's materials. When plants absorb carbon dioxide for photosynthesis, it is an example of _____ and _____ sphere interaction.
What is common between aerobic and anaerobic respiration?

Describe a medical advance that has led to a decrease in the spread of communicable diseases. What is the advance? How does it prevent the spread of disease?

Answers

Communicable disease or also known as infectious disease is the spread of disease from one person to another in a variety of ways: through air, contact with bodily fluids, discharges or blood, direct contact, and bites. Through the years, medical science had created lots of ways to control and prevent the spread of such diseases. One of these is the development of Immunization. Immunization works by preparing the body to fight foreign microorganisms that may harm the body. This boosts the body's natural defense against bacteria and virus by allowing the body to release more antibodies. This would enable to body to recognize the possible virus or bacteria that might invade inside the system.

Answer:

Explanation:

In which step of the scientific method is information obtained through the senses?a. drawing conclusions
b. making observations
c. analyzing data
d. revising a hypothesis

Answers

The scientific method of making observations is how information isobtained through the senses. A person can see, touch, smell and hearthings in order to make an educated guess to how things will end uppanning out for whatever scientific things they are researching.

Making observations is the step of scientific method in which information is obtained through the senses.

Making an observation is the first step of scientific method where scientists gets curious about a natural occurrence or a phenomenon.

Further Explanation.

Scientific method involves a process where researchers or scientists search for answers to certain questions and solutions to problems.
Scientific methods are used by scientists or researchers to test a given hypothesis.

Steps involved in Scientific method

Making an observation and asking question.

Making observation is the first step of any scientific process. The scientists make observations about a natural phenomenon.

After making observations scientist asks a question about an observed phenomenon or pattern.

Observations may be qualitative where the occurrences are described in ways that do not use numbers or quantitative where observations contain numbers and other features.

Formulating a hypothesis

Hypothesis refers to probable answers to the question asked and one that can be tested experimentally. Hypothesis is therefore a possible explanation for a given observation or occurrence.

For the observation that we experience alternating periods of light and darkness that correspond to the movement of the sun, moon, and clouds. The hypothesis here would be; The earth rotates on its axis for 24 hours, thus, exposing one side to the sun or else the sun revolves around the earth for twenty four hours.

Designing and performing experiments

Suitable experiments be carried out to test the validity of the hypothesis formulated.

Experiments refers to organised measurements or observations normally made under controlled environment.

Accept or modify the Hypothesis

The experiment conducted helps the researchers or scientists to determine whether the hypothesis formulated is valid. If the hypothesis is valid then they proceed to the next step of scientific method.

However, if the experiments demonstrate that the hypothesis is incorrect then it must be corrected for further experimentation.

Developing a law and/or a theory

After conducting experiments and analyzing the results obtained, the researchers may test whether the results are reproducible and hence a law may formulated to allow general prediction.

A scientific law describes a phenomenon or pattern, it describes what happens but does not explain why.

Key words: Scientific method, making observation

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Scientific method; brainly.com/question/1506591
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Level: high school

Subject: Biology

Topic: scientific method

Sub-topic: steps involved in scientific method

Which type of stem cell is able to differentiate into any cell type, including extraembryonic placental cells?O totipotent cells
O embryonic cells
O multipotent cells
O pluripotent cells

Answers

The type of stem cell is able to differentiate into any cell type, including extra embryonic placental cells is totipotent cells. Thus, option A is correct.

When some body parts died?

Some body parts, for example, such as muscles, red blood cells, nails, skin, and hair, wear out and or they die, and therefore they are constantly replaced. To replace the worn out parts and dead parts, there is need for cell division.

Other body parts last longer. For example, the liver will last as long as a person lives, and in fact liver failure is one way a person will die. Liver cells are normally not replaced, and therefore there is normally no cell division in the liver.

Cell division in these body parts would simply make them bigger and bigger and that may result in illness or even death. In fact, cancer cells are cells that should not be dividing but they continue to divide non-stop because something went wrong.

Therefore, The type of stem cell is able to differentiate into any cell type, including extra embryonic placental cells is totipotent cells. Thus, option A is correct.

Learn more about stem cell on:

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Answer:

A. Totipotent Cell

Explanation:

How does human evolution or natural selection relate to the susceptibility of disease?

Answers

Human evolution known to be a process in which species adapt to certain conditions of life, and in the battle of life and death, they are forced to become stronger in order to survive in this world. Diseases have always been present during the evolution, acting themselves as a natural selectors - the weaker organisms get sick and die. Not just humans, but all species have to establish a great protecting mechanism in order to survive. That is how our bodies are built, to be able to withstand and survive in the conditions we live in, and that is why our immune system has to be taken care of.

These polar bears can be found all around the North Pole. The natural environment where any species lives is called its

Answers

The natural environment where any specie lives is called its HABITAT.
An habitat refers to the ecological or environmental area where a particular animal specie or plant specie can be found. Living organisms usually get all they need to survive from their habitats. There are different types of habitat and living organisms have capacities to adapt to their habitats.

the answer is habitat

If one amino acid is a protein sequence is changed what could happen

Answers

The correct answer is that a completely different protein will be synthesized. Proteins are made out of long chains of amino acids. There's 500+ of them but only 20 or so are used for humans. They have infinite amounts of combinations and each combination synthesizes a different protein. Our body knows what it needs so it synthesizes it from food that we take.

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Peristaltic waves are ________.A. segmental regions of the gastrointestinal tract B. churning movements of the gastrointestinal tract C. pendular movements of the gastrointestinal tract D. waves of muscular contractions that propel contents from one point to another