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vredina [299]
3 years ago
15

Read the sentence from "Black Hole Beginnings."

Biology
2 answers:
andriy [413]3 years ago
4 0

Answer:

B

Explanation:

I took the test

swat323 years ago
4 0

Answer:

answer is "why does the ball press inward?"

Explanation:

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Which of the following is required in order for homeostasis to be maintained?
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Answer: c

Explanation: all cell membranes need to maintain function

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2 years ago
Explain why cells need to supercoil their dna molecules
Len [333]
DNA supercoiling means under or over winding of the DNA strand and basically is to become more condensed and more organized. Supercoiling is very important as it compacts the genetic code and as if that was not enough supercoiling also regulates and oversees the access the the genetic code.
5 0
3 years ago
How would a scientist have made the distinction between a unicellular and a multicellular organism in the 17th century(1600s), t
Drupady [299]

Using a microscope

Explanation:

A microscope is a scientific device used for magnifying and studying very tiny features.

It was invented by Anton Von Leeuwenhoek in the 17th century.

  • A unicellular organism is an organism made up of a single cell.
  • A multi-cellular organism is made up of several cells.
  • A cell is a very small microscopic structure.
  • It is usually described as the fundamental unit of life.
  • Due to its small size, the naked eyes cannot see it
  • The invention of the microscope opened up the world of cells.
  • Since they have been around for a long time, distinction of cells would have been made possible at those times using a microscope.

learn more:

Microscope brainly.com/question/4065308

#learnwithBrainly

5 0
3 years ago
Describe a characteristic of both an Emperor Penguin and Galapagos Penguin that evolved differently due to their different envir
nevsk [136]

Answer: The size.

Explanation: On the one hand the Emperor Penguin is bigger reaching up to 48 Inches (120cm) of height and 100 Lb in weight, on the other hand the Galápagos Penguin is much smaller. For example a large adult usually goes up to 21 Inches (53cm) and 5 Lb of weight.

This is directly related to the temperature of the environment in which each one develops, because a body exchanges heat in two dimensions through the surface. So, it's easier for a big creature to maintain core temperature stable.

This is really important in environments like the Arctic where temperature goes below zero and the opposite happen in the Equator where there is a tropical weather all the time.

8 0
3 years ago
What contains instructions to cells about how to form a heart ?
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The deoxyribonucleic acid (DNA)
6 0
3 years ago
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