BIOLOGY MIDDLE SCHOOL

Which of the following objects is NOT a part of our solar system? A. the North Star B. the dwarf planet Pluto C. the asteroid belt D. Jupiter’s moons

Answers

Answer 1
Answer:

Answer:

The Answer is: A. The North Star

Explanation:

Pluto is part of the Solar System as is the Asteroid Belt and Jupiter's moon. The North Star, Polaris is about 430 Light Years away. That is, it is far enough away that light has to travel 430 years in order to reach between here and there.

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Answer 2
Answer:

Answer:

the north star

Explanation:

i took the k12 test


Related Questions

HIGH SCHOOL

Nina studies an artificial heart model. The model has tubes that supply an electric current to the model. Nina switches on the current that provides an impulse to the heart. She observes that the heart contracts and relaxes. Compare this model with that of a human heart, and place the steps describing how blood flows through the human heart in order. signal transferred to the ventricles

the atria contract

electrical signal travels toward the heart

the ventricles contract

signal by the nodes in the atrium

signal received by the atrioventricular node

puts thows in order plz

Answers

Answer
1. electrical signal travels toward the heart
2. signal by the nodes in the atrium
3. the atria contract
4. signal received by the atrioventricular node
5. signal transferred to the ventricles
6. the ventricles contract

Heart has a pacemaker that will continually send a signal. The primary site of the pacemaker is at the sinoatrial node, on the top right atrium. This node will send a signal to atria (which will cause it to contract) and to the atrioventricular node.
Atrioventricular node located between atrium and ventricle. It will send the signal to the ventricle(by the bundle of his) and cause it to contract.

Answer:

Answer

1. electrical signal travels toward the heart

2. signal by the nodes in the atrium

3. the atria contract

4. signal received by the atrioventricular node

5. signal transferred to the ventricles

6. the ventricles contract

Explanation:

HIGH SCHOOL

The central nervous system includes which of these major components

Answers

CENTRAL NERVOUS SYSTEM INCLUDES THE BRAIN AND SPINAL CORD.
HIGH SCHOOL

The building blocks of proteins are known as

Answers

Amino acids is the answer

Amino Acid


The basic building block of a protein is called an amino acid. There are 20 amino acids in the proteins you eat and in the proteins within your body, and they link together to form large protein molecules. The variety of ways they mix and match allows for the great diversity of proteins in nature. Understanding the structure of amino acids and how they relate to the proteins they create can help you appreciate how critical these nutrients are in your diet.

HIGH SCHOOL

Competent cells are able to take up naked DNA.
are antibiotic resistant.
occur naturally.
can be created in the laboratory.
are able to take up naked DNA, occur naturally AND can be created in the laboratory.

Answers

Answer: Competent cells are able to take up naked DNA, they occur naturally and can be created in the laboratory

Explanation: Competent cells are cells that can modify its genetic make up and take other DNA using transfomation. Competent cells are commonky made from e.coli because it can replicate faster, readily available for use. DNA is cleavedusing restriction enzymes making up sticky ends.

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