BIOLOGY MIDDLE SCHOOL

Is a starfish an arthropod ? Science is so hard! Thanks

Answers

Answer 1
Answer: No, a starfish belong to the Asteroidea group. 
Answer 2
Answer: Sea stars belong to the group echinoderm which has 5 or 6 arms. Arthropods have no backbones but an external skeleton.

Related Questions

In the 1800s, how did Darwin explain the origin of species?Species originate through geographic separation. Species originate through adaptation by natural selection. Species originate through paleontological changes. Species originate through changes in allele frequencies.
Why are cells called the building blocks of an organism?
What does carrying capacity mean?
. A person rides his bicycle several miles. What process is used by the cells in his legs to release energy at the beginning of the ride and at the end what cause the pain in his legs
Which of the following structures produces proteins in both eukaryotic andprokaryotic cells?A. NucleusB. CytoplasmC. MitochondrionD. Ribosome

What are test tube babies?

Answers

test tube babies are a babies conceived by in vitro fertilization.
in virto fertilization is a process by which an egg is fertilised by sperm outside the body.
hope this helps :)

Can someone please help me this question?The choices are:
A) move and capture food
B) create and exchange genetic material
C) Store and regulate water
D) make and store energy

Answers

Answer:

A) move and capture food

Explanation:

Amoeba is madeup of single cell and having a true nucleus or membrane around the nucleus. Amoeba belongs to kingdom protista because it has some characteristics of animals such as it can move from one place to another. Amoeba used phagocytosis which is a type of endocytosis in which large substances are entered into the cell. Pseudopod is part of amoeba body which is responsible for the movement and capturing the food.

Match each idea about evolution to the person or group where it originated from the drop-down menu. All living things share a common ancestor. More offspring are born in a population than can survive. All living things are related and change over time. Acquired traits can be inherited. Change is driven by competition and sexual selection. Organisms strive for perfection.

Answers

The correct match evolution to the person or group where it originated:

  • All living things share a common ancestor. Erasmus Darwin.
  • More offspring are born in a population than can survive. Thomas Malthus.
  • All living things are related and change over time. Ancient Greeks and Romans.
  • Acquired traits can be inherited. Jean-Baptiste
  • Change is driven by competition and sexual selection. Erasmus Darwin.
  • Organisms strive for perfection. Jean-Baptiste

What is evolution?

In biology, evolution is the alteration in a species' traits over a number of generations and depends on the method of natural selection. A population's genetic makeup evolves over time as a result of the process of evolution.

Adaptations made by organisms to their altering environments are reflected in evolution, which can lead to altered genes, unique features, and the emergence of new species.

Therefore, the correct options are:

  1. Erasmus Darwin
  2. Thomas Malthus
  3. Ancient Greeks and Romans
  4. Jean-Baptiste
  5. Erasmus Darwin
  6. Jean-Baptiste

To learn more about evolution, refer to the link:

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Answer:

Erasmus Darwin

Thomas Malthus

Ancient Greeks and Romans

Jean-Baptiste

Erasmus Darwin

Jean-Baptiste

Explanation:

Who created artifacts such as ironarmor, swords, pottery, jade, and
bronze?
A. Hinduism and Buddhism
B. Europeans
C. Hal Artisans

Answers

Answer: c

Explanation:

What is important in helping living things survive.Explain why living things need nitrogen.

Answers

Nitrogen makes up part of the proteins and DNA in our and other organisms cells. 
Sunlight.
Living things need nitrogen because it forms a part of the proteins and DNA that are found in cells. Animals get nitrogen from eating plants and other animals and just like animals, plants require nitrogen to grow and survive.

In Figure 7-2. are the animal burrows in B an example of chemical or mechanical weathering?

Answers

The animal burrows in Diagram B are an example of mechanicalweathering, and weathering is of many types, such as physical, chemical, and mechanicalweathering.

What are the different types of weathering?

Weathering is a process in which the chemical composition of the matter may or may not change, the size of the matter may or may not change, etc. There are different types of weathering, such as physical weathering, chemical weathering, and mechanical weathering.

Mechanical weathering is a type of weathering in which changes can be seen, such as roots growing in rocks, whereas chemical weathering changes the chemical composition. The chemical weathering changes the composition so that the original and the new composition change in seen in the case of the rocks, the soil, etc., and in the physical weathering the size changes, such as from the large rock to the smaller form.

Hence, the animal burrows in Diagram B are an example of mechanicalweathering.

Learn more about the weathering here.

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Answer:

Mechanical

Explanation:
Other Questions
Is salad living or nonliving
Which of these describes a population? A. all the organisms that interact in a lake B. all the gray squirrels that live in a forest C. an area characterized by a group of plants and animals D. a nonliving factor in an organism’s environment
Which of the following organelles have a transport function?A. ribosome and Golgi apparatus B. endoplasmic reticulum and Golgi apparatus C. endoplasmic reticulum and mitochondrion D. ribosome and mitochondrion
Is Euglena a prokaryotic or eukaryotic organism? explain