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3 years ago

Which of the following lists the steps of technological development in the

Biology

2 answers:

Nataliya [291]3 years ago

8 0

Answer:

C. (1) Telegraph; (2) telephone; (3) cordless telephone; (4) mobile

phone

Explanation:

Telegraphs were used as a source of communication in very early days. Telegraph is a device which uses electrical signals to transmit messages across long distances and it was invented in 1830.

Telephone is another communication device which was first used in 1876. It is an electronic device which is stationary and fixed at a position through wiring and it is used for communications across short or long distances.

After telephone, cordless telephone came into existence as an advanced form of telephone because cordless is not fixed at a location through wiring and it could be moved from one place to another within a short range. It was first introduced in 1995.

Mobile phone is the most advanced type of telephone used for communication and they are not fixed at a position. People can carry mobiles with them even if they are travelling across long distances. They first came in use in recent years.

allochka39001 [22]3 years ago

7 0

The answer is D. Telegraph, telephone, cordless phone , mobile

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What is a hydrogen atom and carbon atom? What are elements?

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Answer:

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Explanation:

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3 years ago

Which of the following is not a reason why cells divide

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Answer: What are my answer choices?

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3 years ago

How is it possible for a baby to grow all of its organs

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Explanation:

during the embryonic stage the baby grows its organs

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Face. The baby’s facial features begin to take shape. The eyes and ears form. The eyes move forward on the face, and eyelids form. Pieces of tissue grow and join together to create the forehead, nose, cheeks, lips, and jaw. The nasal passages, mouth, and tooth buds form the baby’s first teeth. A tongue with taste buds also forms.

Arms and legs. At first, the baby’s arms and legs begin as little buds that sprout from the embryo’s sides. As they grow, the arms look like paddles and the legs look like flippers. A ridge appears on the end of each one. They eventually become the baby’s fingers and toes.

Sexual organs. Cells form to become the baby’s eggs or sperm. The baby’s private parts (girl/boy) is visible at the end of the embryonic period.

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3 years ago

Achondroplastic dwarfism is a dominant genetic trait that causes severe malformation of the skeleton. Homozygotes for this condi

AleksandrR [38]

Answer:

Jane: Aa

Matthew: aa

Explanation:

Jane is a heterozygous woman, which means that she is dominant for this genetic trait while Matthew is homozygous that did not inherit the achondroplastic dwarfism trait from his parents, that is why he is alive.

If we draw a Punnett square, we can see that some of their children will inherit the trait while others will not.

║ a ║ a

A ║ Aa ║Aa

a ║ aa ║ aa

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3 years ago

The energy associated with an object's position is termed

Flauer [41]

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