Answer:
It is true that one-toed horse of today steadily evolved from its five-toed ancestor.
Explanation:
- Evolution is the law of nature.There is a continuous process of evolution in each biological species in nature.
- Similarly, horses had 5 toes millions of year back, but according to the theory of gradualism their use decreased and toes started fusing.
- Now, its only one toe at present but the vestigial left over provides the solid evidence for the fact that horses had 5 toes in the past.
The invertebrate chordates include Tunicates and lancelets.
<h3>What are invertebrate chordates?</h3>
They are a group of chordates that possess notochords somewhere in their life span but end up not possessing the vertebral column. They possess all the characteristics of chordates.
Invertebrate chordates include the Urochordata which are the Tunicates and the Cephalochordata which are the lancelets.
More on invertebrate chordates can be found here: brainly.com/question/1969651
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<span>Edward Jenner is known as, “the father of
Immunology.” He was an English physician and scientist that made a smallpox
vaccine from the cowpox virus. This is known to be the world’s first vaccine
and this discovery is said have saved more lives than the work of any other
human being. Because of his work, World Health Organization declared smallpox
an eradicated disease in the 1979. Up to the year 2002, Jenner was still being
recognizes in the field of contemporary immunology and was even included in the
list of 100 Greatest Britons. </span>
To slow the process of bacteria growth
