I think the alien will either have curly or straight antenna.
Answer:
bicuspid and tricuspid valve
Explanation:
Tricuspid valve separates right auricle and ventrical whereas bicuspid separates left auricle and ventrical.
they help by preventing the back flow of the blood by avoiding them to go to the position where they came from.
Answer:
Meiosis is important because during sexual reproduction, it ensures that all produced organisms have the correct number of chromosomes. It is also responsible for producing genetic variations during the process of recombination, and it repairs some genetic defects.
The disadvantage from not having the trait normally arises only after the reproductive stage of the individual's lifecycle is mostly over. This is a special case of "no strong pressure", because evolution selects genes, not the organism. In other words the beneficial mutation does not alter the reproductive fitness.
Explanation:
Meiosis is important because during sexual reproduction, it ensures that all produced organisms have the correct number of chromosomes. It is also responsible for producing genetic variations during the process of recombination, and it repairs some genetic defects.
Stratified contains two or more tissue layers.
Answer:
B) genetic variation needed for a population to evolve
Explanation:
Mutations are important because they bring about the genetic variation needed for a population to evolve.
- Mutation brings about changes in the DNA sequence of an organism.
- Most times, mutation results when an organism tries to adapt and evolve to unfavorable conditions.
- Mutation can originate from mistakes in DNA sequencing.
- It can also be due to environmental influences.
