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tensa zangetsu [6.8K]
2 years ago
10

All life on earth is made of which element?

Biology
1 answer:
ddd [48]2 years ago
3 0

Answer: Hydrogen

Explanation:

Because it is the element that everything is created with it is everywhere. All life has hydrogen in it, our air, SPACE, everything.

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Match the characteristics with the phylum.
dimulka [17.4K]

Answer:

Rotifera- Microscopic animals with distinct head, neck, trunk, and foot

Bryozoa- Have a lophophore for feeding

Arthropoda- Have jointed appendages

Playthelminthes- Vibrantly colored flat-structured worms

Explanation:

7 0
2 years ago
Which of the following activities required the most commercially produced power?
Talja [164]

Answer:

<h2>Which of the following activities required the most comercially produced power?</h2>

<h3>A.Heating a new home</h3>

B.Heating an old home

C.Heating a car

D.Building a fire

My answer is letter A. Heating a new home

Explanation:

<h2>Please don't delete my answer :(</h2>

<h2>#Princesses Rule</h2>
4 0
2 years ago
Which best describes the volume of a liquid?
coldgirl [10]
D) the amount of space that the liquid takes up in a container.

Volume=the amount of space that a substance or object occupies, or that is enclosed within a container.
3 0
3 years ago
What amino acids do trypsin and chymotrypsin cut at?
Vikentia [17]

Answer:

Trypsin cuts at lysine and arginine amino acid residues at the carboxyl end. Chymotrypsin cuts at tryosine , phenylalanine, and tryptophan amino acid residues at the carboxyl end.

Explanation:

Trypsin and chymotrypsin are known as proteolytic enzymes which are actively involved in the digestive system. They are both secreted by the pancreas and are majorly involved in the breakdown of protein in the small intestine.

Trypsin cuts at lysine and arginine amino acid residues at the carboxyl end. Chymotrypsin cuts at tryosine , phenylalanine, and tryptophan amino acid residues at the carboxyl end.

6 0
3 years ago
I need help with this (#20)
tester [92]

Answer:

a Anaphase I

b Metaphase I

c Telophase I

d Anaphase II

e Prophase I

f Telophase II

Explanation:

Prophase I begins after the DNA has been duplicated, as shown in picture e. The chromosomes are condensed, and also visible, which is apparent in picture e.

The next stage is called Metaphase I, in which the pairs of homologous chromosomes align at The the centre of the cell and the spindle fibres attach, as shown in picture b.

The pairs of chromosomes are pulled apart to opposite poles of the cell by the spindle fibres., as shown in picture a. This stage is called Anaphase I.

Then, a process called Telophase I occurs, when the cell divides into two daughter cells. One of these cells is shown in picture c.

Picture d shows the stage Anaphase II, where the spindle has attached and the chromatids are pulled to the opposite poles of the cell.

The final picture left is picture f, which shows the daughter cell at the end of meiosis II, where the nuclear envelope is reforming, as in telophase II.

8 0
3 years ago
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