Answer:
It is a physical adaptation
Explanation:
Webbed feet does not change the way the animal acts but it had to adapt webbed feet physically to survive in its habitat/surroundings
Answer:
after a vaccine is injected the body creates an immune response that produces memory cells so next time a pathogen invades the body is prepared
Explanation:
To raise the temperature of the flight muscles high enough to enable flight the bumblebee shivers, rather the same a we do when we are cold. This can easily be seen in a grounded bee as her abdomen will pump to ventilate the flight muscles.
Answer:
20
Explanation:
Haploid cells contain a single copy of each chromosome. Diploid cells contain two copies of each chromosome. So if a haploid cell in an organism contains 10 chromosomes - the diploid cell will contain 20 chromosomes.
In humans, nearly all of our cells are diploid, and contain 46 chromosomes. Our haploid cells - the gametes (egg and sperm cells) - contain 23 chromosomes (one copy of each chromosome). When these fuse during sexual reproduction to form a zygote - the diploid state is restored and the zygote has 46 chromosomes.