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Aleks [24]
4 years ago
5

Which was the first cell viewed by the light microscope?

Biology
2 answers:
pychu [463]4 years ago
4 0

Answer:

Oak bark is the correct answer.

LenKa [72]4 years ago
3 0
Answer: Oak Bark

Explanation: I took the test
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16. Name one reason why neurotransmitters typically have very short-lived effects at chemical synapses.
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Answer: The neurotransmitter molecules then diffuse across the synaptic cleft where they can bind with receptor sites on the postsynaptic ending to influence the electrical response in the postsynaptic neuron.

I hope this helps you:)

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3 years ago
Consider the molecules on the left. are amino acids that are catabolized to these molecules ketogenic or glucogenic?
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I dont know what <span> ketogenic or glucogenic is.</span>
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4 years ago
Someone please help me with this :,,,,,,,,,,,)
tamaranim1 [39]

Answer:

1. 1.26823082 mL

2. 0.5 g/mL

Explanation:

The density formula is:d=\frac{m}{v}

1.

Rearrange the density formula for v,

d=\frac{m}{v}

d*v=\frac{m}{v}*v                     <em>Multiply both sides by v.</em>

d*v=m

\frac{d*v}{d} =\frac{m}{d}                             <em>Divide both sides by d.</em>

v=\frac{m}{d}

Volume is found by dividing mass by density. The mass is 20 grams and the density is 15.77 grams per milliliter.

m= 20 \ g\\d= 15.77 \ g/mL

Substitute the values into the formula.

v=\frac{20 \ g} {15.77 \ g/mL}

Divide. Note the grams, g, will cancel.

v= 1.26823082 \  mL

2.

Use the density formula.

d=\frac{m}{v}

Density is found by dividing mass by volume. The mass is 10 grams and the volume is 20 milliliters.

m= 10 \ g\\v= 20 \ mL

Substitute the values into the formula.

d=\frac{10 \ g}{ 20 \ mL}

Divide.

d= \frac{1}{2} \ g/mL

d= 0.5 \ g/mL

3 0
3 years ago
What do Virginia watershed programs do? Check all that apply.
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Answer:

a,d,e

Explanation:

8 0
3 years ago
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Some of the challenges scientists might face when directly observing animal behavior in the wild are:

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<h3>What are animals?</h3>

These are living organisms which cannot produce their food by themselves but depend on other organisms for food .

Animals are generally classified as:

  • Vertebrates
  • Invertebrates

So therefore, some of the challenges scientists might face when directly observing animal behavior in the wild are:

  • Remote sensing
  • Bio-logges
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Learn more about animals:

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