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Ghella [55]
3 years ago
6

1. In Linnacus's time, all living things were grouped into two kingdoms. Later, there were five ( point)

Biology
1 answer:
Pepsi [2]3 years ago
3 0

Answer:

<em>As scientists learned more about genetics and biochemistry , some organisms were moved out of existing kingdoms and into new ones.</em>

Explanation:

As the researches in the scientific world continued, scientists realized that there were, in fact, many genetic diversities present in organisms which were placed in the same groups. Hence, they realized that due to these differences these organisms should not be kept in the same group. As a result, the groups in the classification system increased.

Carolus Linnaeus just grouped organisms based on their features. But today, scientists classify organisms based on various perspectives such as the evolutionary history, genetic similarities etc.

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Definir los roles de las observaciones y las hipótesis en la ciencia.
Ann [662]
La hipótesis señalan las relaciones o vinculos existentes entre las variables y cuales de ellas se debe estudiar sugiriendo una explicación en ciertos hechos y establecer como se debe organizar el análisis de los datos. Las observaciones es el método para reunir información visual sobre lo que ocurre o como se comporta el objetivo
4 0
3 years ago
In a human, one set of chromosomes= 23 chromosomes. How many chromosome would you find in each of the following cells?
lora16 [44]

Answer:

The answer is A) You would find 46 chromosomes in a Haploid cell and B.) You would find 23 chromosomes in a Diploid cell.

Explanation:

A human haploid cell, such as a skin cell, is a complete unit. It is capable of duplicating itself and the new cell has exactly the same number of chromosomes, which is 46.

A human diploid cell, such as a human egg cell, has half the number of chromosomes, which is 23.

Hope this helps!! Have an Awesome day!!! :-)

3 0
3 years ago
Spores produced by the small male cone of a pine tree are produced by _______.
Vesna [10]

The answer is A) Meiosis

3 0
3 years ago
Read 2 more answers
Dr. Paul Ehrlich observed that the differential stain developed by Dr. Gram suggested bacteria could be killed differentially by
Alex787 [66]

Answer:

The correct answer is Glycocalyx, ribosome and cell wall.

Explanation:

Glycocalyx is mainly found in bacteria that makes a protective covering outside the cell wall in the form of capsule of bacteria and provide protection to bacteria from host immune cell.  

Bacterial ribosomes are different from human ribosomes. Bacteria contain 70s ribosome while humans contain 80s ribosome so ribosomes are potential targets for many drugs present today.

Bacterial cell contain cell wall which is made up of peptidoglycan or lipopolysaccharide but human cell does not contain a cell wall, therefore, many drugs are designed to destroy cell wall of bacteria like penicillin.

So glycocalyx, ribosomes, and cell wall can be potential targets for Dr. Ehrlich's "magic bullets" due to significant difference or absence from humans.

4 0
4 years ago
How is matter conserved in the water cycle
notka56 [123]

Answer:

Matter is conserved because atoms are conserved in physical and chemical processes. As complex as the water cycle is, water molecules are conserved and endlessly recycled in nature. Conservation of mass is a physical law that s never broken.This cycle continues with no loss of water.

6 0
3 years ago
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