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3 years ago

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What did darwin mean when he stated "descent with modification"? darwin was referring to change in species over time. darwin was

referring to how offspring resembled the parents. darwin was referring to the process of natural selection?

1 answer:

hoa [83]3 years ago

3 0

Process of natural selection

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Briefly describe the initial experiment in which dr. folkman accidentally observed an important connection between tumor growth

Karolina [17]

Http://www.pbs.org/wgbh/nova/cancer/folkman.html

I believe this website will help :)

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3 years ago

To grow, plant cells must produce new components of the cell membrane, including phospholipids and membrane proteins. Components

Makovka662 [10]

Answer:

endoplasmic reticulum

Explanation:

ER is full with proteins than help to synthesize phospholipids in plant cells

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2 years ago

A cation is an atom that has____ electrons; while an Anion is an atom that has____ electrons

Akimi4 [234]

Cations are positive so they have less electrons than protons, while anions are negative so they have more electrons.

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2 years ago

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Biological muscle cells can be thought of as nanomotors that use the chemical energy of ATP to produce mechanical work. Measurem

bearhunter [10]

Answer:

The answer is 6.4 × $10^{-20}$ Joules

Explanation:

This question wants to effectively test your knowledge of the names of the negative powers of 10, so first of all, before calculating, let me explain what each of the symbols in the units given in the question means:

Force = 8.0 pN = 8.0 × $10^{-12}$ N

displacement = 8.0 nm = 8.0 × $10^{-9}$ N

Now let us calculate the work.

work = Force × Displacement

work = 8.0 × $10^{-12}$ × 8.0 × $10^{-9}$ = 64 × $10^{-21}$

= 6.4 × $10^{20}$ Joules (in standard form)

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3 years ago

Convert the temperature 49oC to kelvin

nignag [31]

It should be 322.15. Hope it helps :)

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3 years ago