Archaeopteryx represents on of group of transitional fossils between older (extinct) dinosaur lineages and modern (extant) ones, i. e., birds. What does the phylogenetic position of Archaeopteryx tell us about the evolution of morphological adaptations for flight in birds with respect to the relative timing of the evolution of feathers vs. muscular and skeletal modifications

hormones in blood stream

image: dtc.ucsf.edu

endocrine glands secrete hormones into the blood stream near them; the hormones then travel in our bloodstream until it reaches its destination, called a target cell, in distance parts of the body. in the target tissue, hormones lock onto the target’s plasma membrane, called the receptor site.

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.

bacterium is not correct

there's no big difference.

explanation:

the only little different between a rabbit and bunny is just that bunnies are much smaller than rabbits. bunnies are basically baby rabbits.