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Gnesinka [82]
3 years ago
12

Objectives

Biology
1 answer:
White raven [17]3 years ago
5 0
• Matthias Schleiden observed that all plants were made of cells; Theodor Schwann observed that all animals were also made of cells; and Rudolf Virchow observed that cells only come from other cells.

• Prokaryotic cells- don’t contain a nucleus or any other membrane-bound organelle.
Eukaryotic cells- contain membrane-bound organelles, including a nucleus.

• Phospholipids make up the basic structure of a cell membrane and are arranged in a double layer called the lipid bilayer.

• Active Transport- moves ions from low concentration to high, using metabolic energy in the form of ATP.
Passive Transport - moves ions from high concentration to low, using no metabolic energy.
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The thick middle, muscular layer of the heart is the _______.
Mashcka [7]
B.) <span>The thick middle, muscular layer of the heart is the  "MyoCardium"

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4 0
4 years ago
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A snail was observed to have moved a distance of 0.5 meters in 2 hours. What rate of movement was observed in this experiment
kozerog [31]

Answer:

0.25 m/ hour

Explanation:

A rate of movement is essentially a speed measurement, where you divide the distance crossed from point A to point B by the time it took to do it.

So, we know the snail moved a total distance of 0.5 meters... that's our distance crossed.

We know that took 2 hours...  so we just have to calculate that:

0.5 meters / 2 hours  = 0.25 m/hour

6 0
3 years ago
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What is the difference between smooth and rough er?
Ivahew [28]
Rough er are flattened spaces while smooth er are tubular

rough er have ribosomes attached to its outer surface while smooth er does not

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3 0
3 years ago
In a population of guinea pigs, short hair is dominant to long hair. If 25 percent of a breeder’s guinea pigs has long hair, wha
Ipatiy [6.2K]
<span>If 25 percent of a breeder’s guinea pigs has long hair, the frequency of the recessive allele (q) is 50%. Let A be dominant allele and a be recessive allele. The frequencies are as following: p - the frequency of dominant allele, q - the frequency of recessive allele, p^2 - the frequency of genotype AA (short hair), 2pq - the frequency of genotype Aa (short hair), and q^2 - the frequency of genotype aa (long hair). So, we know that q^2 = 25% = 0.25. We need to find q. q = √q^2 = √0.25 = 0.50 = 50%.</span>
5 0
4 years ago
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Giraffes and mice have the same number of vertebrae despite size and function this is an example of a blank
adoni [48]
I believe the answer, homologous structure, is what you are looking for
6 0
3 years ago
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