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jonny [76]
2 years ago
9

Which of the following decreased carbon dioxide levels in the atmosphere?

Biology
1 answer:
FromTheMoon [43]2 years ago
3 0
Your answer would be B
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The energy found in atp molecules synthesized in animal cells comes directly from
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Organic molecules, which are found mostly in food. These molecules have C-C or C-H bonds, which are high energy bonds. 
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3 years ago
Based on this tree, which statement is correct? A phylogenetic tree of the living organisms. The main branch divides into two br
alexgriva [62]

Answer:

a) Salamanders are a sister group to the group containing lizards, goats, and humans.

Explanation:

A phylogenetic tree is a diagram that represents the evolutive relations between organisms. As you can see in the attached image, the branch that contains salamanders and the group containing lizards, goats and humans, come from the same point as they are in the group 2a and 2b, because of this <em>Salamanders are a sister group to the group containing lizards, goats, and humans.</em>

b) Goats are in the same level as humans because they come from the same point, so they are more close between them than with salamanders.

c) Lizards are more closely related to salamanders than humans, because humans are in an upper branch, then is not true that salamanders are closely related to lizards as to humans.

d) A basal taxon is a lineage that evolved early, so it separates from the tree in an early stage, as it happens to the salamanders that separated early but not humans.

Then the correct answer is a)

<em>Salamanders are a sister group to the group containing lizards, goats, and humans.</em>

3 0
3 years ago
Which is more appropriate?
Thepotemich [5.8K]

Answer:

A

Explanation:

The The one that is appropriate is A because phytoplankton to fish is like the bacteria that is on the bottom of the floor in the water and the fish could eat that phytoplankton and then your shark and whale could eat the fish and get the phytoplankton so your answer is A

6 0
3 years ago
If a DNA sample were composed of 15% adenine, what would be the percentage of thymine?
aivan3 [116]

Answer:

C: 35

Explanation:

if DNA molecule contains 15% adenine then C and G will constitute 70%,of which guanine will be 35%

7 0
2 years ago
Compare humoral immunity vs cell mediated immunity
Y_Kistochka [10]

Answer:

Humoral immunity:

Humoral immunity is mediated by the macromolecules present in the extracellular fluid. This immunity provides protection against the pathogens present in the extracellular fluid. B- cells are mainly produced by the humoral immunity. The plasma cell and memory cells are generated in the human body. Antibodies kill the pathogens in humoral immunity.

Cell mediated immunity:

Cell mediated immunity is activated by the infected cells. This immunity provides protection against intracellular pathogens. T- cells are mainly produced by cell mediated immunity. T helper cells and T killer cells are mainly produced in the cell mediated immunity. Cytokines kill the pathogens in case of cell mediated immunity.

6 0
3 years ago
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