1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
m_a_m_a [10]
3 years ago
13

BRAINLIESTTTT ASAP!!!

Biology
2 answers:
castortr0y [4]3 years ago
5 0

Answer:

The correct answer is option "A: the elements are finite in number"

Explanation:

Hello!

Let's solve this!

The chemical elements are a set of equal atoms. In their simplest form they contain only one atom. They join together to form molecules that can be of the same atom or combination of different atoms.

We can say that the elements are finite in number, so the correct answer is option "A"

siniylev [52]3 years ago
3 0
They are finite in number
You might be interested in
Which of the following is true of carbon dioxide exchange? Select one: a. Carbon dioxide is produced in the mitochondria and cyt
sergey [27]

Answer:

d. Hemoglobin helps maintain a constant pH in the blood by binding with H⁺ions released from bicarbonate ions.

Explanation:

The presence (CO₂) in in the erythrocytes lowers its pH as a result the affinity of hemoglobin decreases for oxygen. The carbon dioxide (CO₂) reacts with water to form carbonic acid in the presence of the enzyme carbonic anhydrase which is present in the erythrocytes or red blood cells. The carbonic acid then changes into two ions hydrogen ion (H⁺) and bicarbonate ion (HCO₃⁻).  As a result of H⁺ ions, the pH of blood drops. Haemoglobin pick up hydrogen ions to balance the decrease in pH. Thus, haemoglobin helps in maintaining constant pH or keep pH of blood in buffer.

5 0
3 years ago
When considering the evolutionary tree of life and the three domains of life, which statement best describes what likely happene
Fudgin [204]

Answer:

The answer is - Although their cell structures are very different, archaean and  eukaryotic cells are more closely related to each other than to  bacteria, as evidenced by the fact that Bacteria was the first  domain to split from the shared ancestor of Archaea and  Eukarya.

Explanation:

The options are:

A. Bacterial and eukaryotic cells are more closely related to  each other than to archaeans, as evidenced by the fact that  bacteria and eukaryotes do not inhabit the most extreme  environments.

B. Although their cell structures are very different, archaean and  eukaryotic cells are more closely related to each other than to  bacteria, as evidenced by the fact that Bacteria was the first  domain to split from the shared ancestor of Archaea and  Eukarya.

C. Bacteria and archaeans are more closely related to each other  than to eukaryotes, as evidenced by their cell structures. Bacteria  and archaeans are prokaryotic, while all eukaryotic cells contain  mitochondria and other membrane-bound organelles.

D. The three domains of life are equally divergent from one  another, so no two domains are more closely related to each other.  This is supported by the evolutionary tree of life because three  branches extend from one node millions of years ago.

The answer is - B. Although their cell structures are very different, archaean and  eukaryotic cells are more closely related to each other than to  bacteria, as evidenced by the fact that Bacteria was the first  domain to split from the shared ancestor of Archaea and  Eukarya.

Archaea and bacteria are similar in terms of cellular organisation and size but are however similar to eukaryotes (eukarya) at the molecular level. Archaea and Eukaryotes both undergo DNA replication and protein synthesis the same mechanism. Both of them posses closely related genes and several metabolic pathways, including the enzymes in transcription and translation.

4 0
3 years ago
Describe How water is tested for color in platinum cobalt method​
Alecsey [184]

The color produced by one milligram of platinum cobalt in one liter of dissolved water is fixed as one unit of color in platinum-cobalt scale.

5 0
3 years ago
Read 2 more answers
Particles of the ground that have a lot of energy can do two different things with this energy. What are these two things?​
Gwar [14]

Answer:

They heat up and they stay the same I believe, my teacher helped me with it so its heat up and stay the same or move. Something like that.

Explanation:

5 0
3 years ago
In winter, although many parts of Europe have heavy snow falls, the sea ports remain ice-free and ships come and go. What could
son4ous [18]

The answer is (A. A warm current flows along the coast.) Currents carry cold and warm water from place to place. It's an amazing phenomenon that scientists are still trying to fully figure out.  Some think it's caused by wind, others think it's caused by the shifting of the tectonic plates, but one thing's for sure, currents are VITAL for this planets life.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Why are uncompetitive andmixed inhibitors generally considered to
    14·1 answer
  • Identify the abiotic limiting factor from the choices below.
    10·2 answers
  • I found a baby snow leopard behind my house and adopted it.
    14·2 answers
  • Which of these is one of the steps of the hypothetico-deductive method? mistrusting competing theories refute objections to the
    8·1 answer
  • Why must reverse transcriptase be used to create a eukaryotic expression library?
    7·1 answer
  • 30 POINTS
    14·1 answer
  • Why are bacteria important to the environment? Select all that apply.
    10·1 answer
  • Which type of RNA brings the information in the genetic code from the nucleus to other parts of the cell?
    5·1 answer
  • The spindle apparatus begins to become visible during
    7·1 answer
  • Which will you hear as the highest pitch? a sound wave with frequency of 10,000 Hz b sound wave with frequency of 30,000 Hz c so
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!