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3 years ago

Explain how similarities in the genetic codes of organisms are due to common ancestry and the process of inheritance.

1 answer:

8 0

Because since their ancestors came before them then they inherit certain beneficial traits that help them survive. Those traits are in the DNA and the animals are evolving to be more fit for the environment that they are in. (hope this helps)

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Drag each label to the correct category. Human activities that do not cause an imbalance in the water cycle and the carbon cycle

bogdanovich [222]

From the list provided the eco-friendly activities are recycling materials, growing trees, burying organic matter and using fewer disposables. Recycling materials ensures that less refuse is available to become trash. Planting trees prevents and remedies soil erosion. Using fewer disposables ensures that less refuse enters the environment. Filling landfills, cutting trees and burning fossil fuels are all non eco-friendly practices.

8 0

3 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

3 years ago

Organelles are moved within the cytoplasm by being pulled along microtubules by the motor proteins __________ and __________.

11111nata11111 [884]

<span>Organelles are moved within the cytoplasm by being pulled along microtubules by the motor proteins </span><span>dyneins and kinesins.</span>

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3 years ago

The portion of the Earth that supports the existence of living things is the

Temka [501]

Answer:

Biosphere

Explanation:

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3 years ago

When did darwin arrive on the galapagos islands

lutik1710 [3]

September 15, 1835 is when he arrived

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3 years ago