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wolverine [178]
3 years ago
13

In what year did Charles Darwin publish evidence that species evolve

Biology
1 answer:
Ad libitum [116K]3 years ago
3 0

1859

On the Origin of Species (or more completely, On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life), published on 24 November 1859, is a work of scientific literature by Charles Darwin which is considered to be the foundation of evolutionary biology.

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MaRussiya [10]

Answer;

A.Vinegar and soda

Explanation;

-A salt is a substance that contains a cation which is a metal ion or an ammonium ion and an anion derived from an acid. It is an ionic compound that can be formed by the neutralization reaction of an acid and a base.

4 0
3 years ago
The spinal cord is most important for: Group of answer choices Production of routine behaviors, such as walking Voluntary behavi
djverab [1.8K]

Answer:

Receiving sensory information and carrying commands to the muscles.

Explanation:

The spinal cord serves as the transmission conduit  for the passage of action potential as sensory information through the sensory/afferent neurons to the dorsal roots of the spinal cord.The information  synapse with the inter neurons,branching off to the brain and emerged as the  response through the motor/efferent neurons to the effectors(muscles).

This pathways is called reflex arc. Thus most of the involuntary action of the body is conducted through the spinal cord

4 0
2 years ago
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Hemophilia and colorblindness are both X-linked, recessive traits. A hemophiliac woman marries a colorblind man. Assume that bot
Gre4nikov [31]

Answer:

Normal daughters and Hemophiliac son

Explanation:

Females exhibit hemophilia and colorblindness in homozygous genotype only.  

The genotype of hemophiliac woman= X^hX^h

The genotype of colorblind man= X^cY

A cross between X^hX^h and X^cY would produce progeny in the following phenotype ratio= 1 Normal but carrier daughters:1 Hemophiliac son

4 0
3 years ago
What is the difference between gene and an allele
Dmitry [639]

Answer:

A gene is a stretch of DNA or RNA that determines a certain trait. Genes mutate and can take two or more alternative forms; an allele is one of these forms of a gene. For example, the gene for eye color has several variations (alleles) such as an allele for blue eye color or an allele for brown eyes.

Explanation:

3 0
3 years ago
In which of the following ways does a fertilized egg differ from an unfertilized egg? A) A fertilized egg has more unpaired chro
jok3333 [9.3K]
Answer - D
Gametes always have half the number of chromosomes compared to the somatic cells, hence an unfertilized egg would have half the chromosomes from the mother, and a fertilized egg will contain diploid number of chromosomes. Half of them from inherited from each of the two parents.
7 0
2 years ago
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