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alexandr1967 [171]
3 years ago
15

Which is most likely the order of the origin of life on Earth?

Biology
1 answer:
xz_007 [3.2K]3 years ago
8 0

Bacteria to amphibians. amphibians started to turn to fish and some started walking to land. They started laying eggs and turning into reptiles. those reptiles started growing hair turning them into four legged mammals. the mammals then turned to primates which evolved into us.

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True or False: Alex used her fingers to remove the lid from a can of vegetables after he opened it with a can opener. Sophia kno
zzz [600]
True bee casue if you open with your finger, it will get cut

3 0
3 years ago
What is the initial velocity of the reaction catalyzed by the wild-type enzyme when the substrate concentration is 10 mM?
Doss [256]

Answer:

50 micro mol/min

Explanation:

So, we have the following parameters which are going to help us in solving this particular Question or problem;

=> For the wild type enzyme, the value for the Maximum velocity = 100 micromol/min.

=> For the mutant type enzyme, the value for the Maximum velocity = 1 micromol/min.

So, we can determine or calculate the value for the initial velocity for each of the enzyme type by using the formula below;

Initial velocity = (substrate concentration × maximum velocity) / substrate concentration + Km.

Therefore, for the wild type enzyme; the Initial velocity = (substrate concentration × maximum velocity) / substrate concentration + Km.

Initial velocity =( 10mM × 100micromol/min) ÷ ( 10mM + 10 mM ) = 50 micro mol/min.

Initial velocity for the wild type enzyme = 50 micro mol/min.

8 0
3 years ago
Which of the following correctly describes the disruption of an ecosystem service by an anthropogenic activity?
ehidna [41]

Answer:

The correct answer is "Provisioning services are disrupted by increased combustion of fossil fuels, which leads to an increase in air pollution".

Explanation:

The ecosystem provides several services that if used with responsibility, could be sustained by the nature. Unfortunately, disruption of an ecosystem service could happen by an anthropogenic activity, which are the activities that humans perform. One example is the disruption of provisioning services by increased combustion of fossil fuels, which leads to an increase in air pollution. The ecosystem provides clean air that gives oxygen for people and animals to breath, however high combustion of fossil fuels could disrupt this service.

8 0
3 years ago
Which cell structure serves the stated function in both eukaryotic and prokaryotic cells?
tamaranim1 [39]

Answer:

Cytoplasm

Explanation:

Eukaryotic cell: cell membrane, cytoplasm and nucleus

Prokaryotic: cytoplasm, has no nucleus

7 0
3 years ago
Read 2 more answers
What limits most cells to a very small size?
natta225 [31]
-Surface area to volume ratio. (surface area / volume)
-Nucleo-cytoplasmic ratio.
-Fragility of cell membrane.
-Mechanical structures necessary to hold the cell together (and the contents of the cell in place)
5 0
3 years ago
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