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2 years ago

How do specialized organelles that capture energy from the sun help plants survive?

1 answer:

4 0

Chloroplastst capture energy from the sun to help survive by collecting the energy to be used to convert into glucose, which is food for the plant. The process in chich this sunlight is turned into glucose is called “photosynthesis”.

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2 years ago

The composition of a sedimentary rock depends upon the composition of the rocks and living things its sediments came from.

Aleonysh [2.5K]

What are you trying to ask?

8 0

2 years ago

Read 2 more answers

A student's grade goes from a 95 to a 65 in 3 weeks. Calculate

steposvetlana [31]

-10grade/week

Explanation:

Given parameters:

Initial grade = 95grade

Final grade = 65grade

Time = 3weeks

Unknown parameter:

Rate of change of grade = ?

Solution:

Rate is defined as the change of a quantity with time.

Rate of change of grade = $\frac{Final grade - Initial grade}{Time}$

Rate of change of grade = $\frac{65 - 95}{3}$ = $\frac{-30}{3}$

Rate of change of grade = -10grade/week

The rate of change of the student's grade is -10grade/week. It implies that the grade of the student reduces by 10unit per week.

5 0

2 years ago

The rate at which the concentration of a drug in the bloodstream decreases is proportional to the concentration at any time t. I

Westkost [7]

Answer:

$C(t) = C_oe^{-kt}$

Explanation:

From the given information:

At any given time (t), let c(t) represent the concentration of the drug present in bloodstream.

Deriving the equation:

$\dfrac{dC}{dt}$ decrease proportionally to Concentration C

i.e

$\dfrac{dc}{dt} \alpha - C$

$\dfrac{dc}{dt} = -k C$

$\dfrac{dc}{c} = -k dt$

$\int \dfrac{dc}{c} = -k \int dt$

㏑(C) = -kt + λ

where,

λ is the integration constant.

Integrating at t = 0, concentration of blood = Co g/mL

C(0) = Co

㏑(C₀) = 0 + λ

λ = ㏑(C₀)

From ㏑(C) = -kt + λ

㏑(C) = -kt + ㏑C₀

㏑(C) - ㏑C₀ = -kt

$\dfrac{C}{C_o} = e^{-kt}$

$C(t) = C_oe^{-kt}$

∴

The concentration of drug in blood at any time t is:

$C(t) = C_oe^{-kt}$

4 0

2 years ago

During which phase do the chromosomes make copies of themselves so that there are two of each one?

SashulF [63]

Answer:

The beginning and majority of the time is known as Interphase. Interphase is 80% of the total cycle and is where the cell does most of the work in replicating organelles, chromosomes, and preparing to undergo Mitosis which is the actual splitting process where one cell becomes two. During Interphase there are 3 major steps, G1, S, and the G2 phase.

Explanation:

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2 years ago