Answer:
the rate of change of velocity with time is called acceleration.
it can also be defined as the increase in velocity per second.
The S.I. unit of acceleration is meter per second square or ms−2.
formula; a = Δv / Δt
where a is acceleration,
Δv is the change in velocity,
and Δt is the amount of time it took for that change to occur.
Answer:
what are the following choices?
Explanation:
<span>Diversity of the species. Asexual reproduction is in effect a form of cloning - in that the offspring are created from the 'mother' - and contain only one set of genes. Sexual reproduction - is the joining of an egg and sperm from two different parents - thus 'mixing' the genes from both donors. Hope this helps, good luck. </span>
Answer:
The answer is B and D.
Explanation:
PKA ( Protein Kinase A) is an enzyme which becomes active with the presence of cAMP molecules in the cell and the cAMP molecules need to bind to R subunits to become active which happens at a ratio of 1:2.
The example given in the question states that the Ro sububit can bind to 8 molecules of cAMP rather than the conventional 2.
This means that the activation of the Ro subunits is harder than the activation of R subunit because of the requirement of higher cAMP concentrations.
B is correct, full activity of PKA with Ro subunits needs a higher concentration of cAMP.
Because Ro binds to eight units of cAMP, the dynamic range of activity of PKA with Ro is going to be over a wider range of cAMP concentration.
I hope this answer helps.
Answer:
Mosses in a big absorb and hold water
Explanation:
Mosses (a living thing) absorbs and holds water (a nonliving thing).