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Veronika [31]
3 years ago
11

Who was the first person to look at living cells using a microscope

Biology
2 answers:
Karo-lina-s [1.5K]3 years ago
8 0

Anton van Leeuwenhoe

morpeh [17]3 years ago
6 0
<span>Robert Hooke did this in 1665</span>
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How could you use a system of location similar to north/south and east/west to describe location on a patient's body? Why is thi
yan [13]

Answer: I assume it would be to keep it from being less confusing.

Explanation: If you say on the left thoracic side on the body, you would be saying the left chest area. If you didn’t add that it was the left side it could mean anywhere in the chest and they could examine the wrong spot.

5 0
3 years ago
The system that enables 4 nucleotides to dictate the sequences of millions of proteins is called the __________.
alekssr [168]

Answer:

Genetic code

Explanation:

Genetic code refers to the set of rules by which the information encoded in the genetic material is translated into the proteins. The genetic code is present on the genes in the form of triplets of nucleotides  called codons which specifies the specific amino acid.

The codon system of the genetic code rules allows the 4 different nucleotides to form specific amino acids by the combination of the four different nucleotide in the triplets.

Thus, Genetic code is the correct answer.

8 0
3 years ago
an animal carcass had 24 grams of carbon 14 when it was alive and 3 grams when its fossilized remains were discovered how old is
KengaRu [80]
The carbon 14 left from this animal is 3 grams of 24 grams which is: 3g/24g= 1/8 times of its original mass. Then, the age of the animal fossil would be:

final weight= initial weight * (1/2) ^ time/half-live
1/8 initial weight = initial weight  * (1/2) ^ time/half-live
log2 1/8= log2 (1/2) ^ time/half-live
-3= -time/half-live
time= -3 * -(half-live)
time= 3 half-live

If the half-live is 5730 years, the age would be: 3* 5730= 17.190 years.
3 0
3 years ago
Drag each label to the correct location on the chart.
Allisa [31]

#1: Bias

#2: Fact

#3: Bias

# 4: Bias

#5: Fact

#6: Fact

BIAS: Tomatoes taste better when fish

DNA is inserted into them. Cereal is more

filling when cow DNA is inserted into it.

Testing GMO on rats and cockroaches

is ethically wrong.

FACT: Genes from different species can

be spliced into an organism to produce

desired traits. GMO crops can be

designed to grow in environments where

the natural species can't grow. The genes

from GMO plants can spread to natural

species if they successfully mate.

Hope this helps! :)

6 0
3 years ago
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There are two types of reactions in photosynthesis: light-dependent reactions and light-independent reactions. A group of biolog
I am Lyosha [343]

Answer:

The two stages of photosynthesis: Photosynthesis takes place in two stages: light-dependent reactions and the Calvin cycle (light-independent reactions). Light-dependent reactions, which take place in the thylakoid membrane, use light energy to make ATP and NADPH

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