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4 years ago

Giving BRAINLIST if you help fast!!

Biology

2 answers:

V125BC [204]4 years ago

7 0

Answer:

B) ATP is the usable energy source for all cells.

Explanation:

All living cells need ATP (or adenosine triphosphate) because it is their usable energy source. They need it for multiple different processes, like active transport or cell signaling.

Andrews [41]4 years ago

5 0

B) the usable energy source for all cells

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Match the type of of evidence for evolution with the correct example. analogous structures vestigial structures homologous struc

gogolik [260]

• Homologous structures: Both Ostriches have wings similar in form to those of their ancestors, but that do not allow the birds to fly.

Homologous structures are those that have structural similarities but are different in function. For example, if we look at the anatomical structure of a bird’s wing, it is very similar in structure with a human arm. However, over the course of time they have evolved to perform different functions.

• Vestigial structures: The inner ear bones of mammals have evolved from bones that form the jaws of reptiles.

Vestigiality refers to the process in which some structure lose their function over the course of evolution in some specie but they are functionally normal in other species. Such a structure is the inner ear bones of mammals which donot perform an important function in mammals but do perform in reptiles.

• DNA sequence data: Both Genes involved in RNA replication are conserved among bacteria and animals, suggesting a common evolutionary origin.

The sequencing of genetic data is an excellent method of finding the evolutionary histories and relatedness of different organisms. This field of sciences is called phylogenetics and the mentioned example is the result of phylogenetics.

• Analogous structures: The jointed legs of insects and vertebrates arose independently, indicating a different evolutionary origin.

Analogous structures are those that have similar function but they look very different in structure or anatomy. This is because they have been evolved from different ancestors and perform different functions. One example of these structures is mentioned, The jointed legs of insects and vertebrates that look different bur perform same function.

7 0

4 years ago

How does an ecosystem differ from a community

Ray Of Light [21]

Explanation:

First of all let's see, what's an ecosystem?

the ecosystem is defined as the result of what happens when a community of living organisms shares and interacts within their environment.

What this means is that the ecosystem is a product of a specific community. There are several types of ecosystems, for example, a marine ecosystem, the rain forest ecosystem etc.

Now, what's a community?

A community in itself is a group of beings that share something in common and work, interact, and live together.

What happens with the community is that the definition of it does not extend to the specifics of which types of ecosystems can come out of the myriad of communities that exist.

Conclusion: Therefore, a community is a formed group of beings with common locality and with a capacity to come together under a common denominator to establish as specific mode of existence, namely, an ecosystem.

I hope this was helpful ! :)

7 0

3 years ago

The kinetics analyses of an enzyme are measured as a function of substrate concentration in the presence and in the absence of 2

Aleksandr-060686 [28]

Answer:

take the reciprocal of the values as 1/S and 1/V and plot the values on lineweaver-burk plot.

so the re-arranged data is as following

1/S 1/V (no inhibitor) 1/V (with inhibitor)

0.333 0.096 0.244

0.2 0.068 0.156

0.1 0.044 0.088

0.033 0.029 0.044

0.011 0.024 0.029

and the plotted lineweaver-burk plot with the equation of straight line would be....

where, first line represents the velocity of reaction with no inhibitor and second line represent the velocity in presence of inhibitor. X-axis has the substrate concentration as 1/S and y-axis has the velocity as 1/V.

as per the plot, equation of line on the lineweaver-burk plot, Y = mx + c, where c = 1/Vmax and m = Km/Vmax.

so solve for the given equations.

First, equation of line in the absence of inhibitor is Y = 0.23x + 0.021

so Vmax = 1/0.021 = 47.6 micromol/min

and Km/Vmax = 0.23, or Km = 0.23 x 47.6

Km = 10.95

Km do not have a unit, so 10.95 x 10-6 or as per your values round it up to 1 decimal point as 1.1 x 10-5

so value of Vmax = 47.6micromol/min and Km = 1.1 x 10-5 in the absence of inhibitor.

similarly, equation of line in the presence of inhibitor is given as Y = 0.67x + 0.021

so Vmax = 1/0.021 = 47.6 micromol/min

and Km/Vmax = 0.67

or Km = 0.67 x Vmax = 0.67 x 47.6 = 31.89

Km do not have a unit, so 31.89 x 10-6 or 3.1 x 10-5

so value of Vmax = 47.6micromol/min and Km = 3.1 x 10-5 in the absence of inhibitor.

8 0

3 years ago

Which of the following are characteristics of

agasfer [191]

I’m not 100% sure but i think it’s: spores produced in basidia, important in the food industry, important in the fermentation process and can cause disease to plants

6 0

3 years ago

What characteristics distinguish archaea from eubacteria?

zalisa [80]

The other two Domains being "Bacteria" and "Eukarya" (which includes us humans). Archaebacteria are characterized by having different cell call components, coenzymes and RNA Sequences compared to bacteria. ... Eubacteria have a rigid cell wall. However, they can be both gram positive and gram-negative.

6 0

3 years ago