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ankoles [38]
3 years ago
9

The picture represents a structure of the respiratory system.

Biology
1 answer:
marusya05 [52]3 years ago
3 0

Answer:

ITS B

Explanation:

to exchange oxygen with carbon dioxide

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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
If the blood drops above were found in two locations of a crime scene, from which direction did the blood come in each case? Dro
lawyer [7]

Answer:

What is a. A; A

Explanation:

Drop 1 struck the surface from direction A, and drop 2 struck the surface from direction A.

6 0
3 years ago
Which elements are the most abundant in living organisms? Select all that apply.
kkurt [141]

Answer:

Carbon, sulfur, hydrogen, oxygen, and nitrogen

Explanation:

3 0
3 years ago
Read 2 more answers
The bicondylar angle positions the center of mass above the base of support during the single-support phase of bipedal locomotio
Reptile [31]

Answer:

The bicondylar angle positions the center of mass above the base of support during the single-support phase of bipedal locomotion.

A. True

Explanation:

The bicondylar angle is the functional angle between the diaphysis of the femur, perpendicular to the intercondylar plane.  Very unique to humans, this angle places the knee and the foot under the body's center of gravity during a single support phase of locomotion or gait.  With hip joints set lateral to the body's midline, the bicondylar angle aligns the lower limb with the center of gravity, thereby facilitating human movement.

3 0
3 years ago
How are the names of binary ionic compounds determined?
Alexandra [31]
Naming ionic compounds<span> with transition metals isn't too hard either. They are</span>named<span> like the </span>binary compounds<span>, with the cation first, then the anion with -ide added to it, but you have to take into account the variations of the metal </span>ions<span>. You do this by adding Roman numerals in parenthesis to the cation.</span>
7 0
3 years ago
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