Answer:
option A they have developed from the same organism
Explanation:
Organs of animals (belonging to different species) which have similar structure but different functions are homologous organs. Such organs have evolved from the same ancestors , however their function are different.
For example – wings of bats, limb of human etc.
Here in this case also the bone structures of human, cow, and horse are same but their functions are different, thus they are homologous organs and hence they have evolved from same ancestors.
The correct answer is option A
They acid effect it by making water undrinkable, and it can corrode steel and etc. Hope this helps
Fermentation occurs without oxygen, so it is anaerobic respiration (without oxygen respiration)
Answer:
The first and last box. If you don't agree with the first then definitely consider the last box.
Nebula- a cloud of gas and dust in outer space
Protostar- a contracting mass of gas which represents the early stage of formation in a star
White Dwarf- a stellar remnant composed mostly of electron-degenerate matter
Supernova- transient astromnical event that occurs during th last stellar evolutionary stages of a massive star's life
Neutron Stars- a type of compact star
Pulsar- a highly magnetized rotating neutron star
Black Hole- a region of space-time exhibiting so much gravitational effects that nothing can escape from inside it
Spiral Galaxy- flat, rotating disc containing stars, gas, and dust
Barred-spiral Galaxy- central bar-shaped structure composed of stars
Irregular Galaxy- a galaxy with no distinct, or regular shape
Quasar- a massive and extremely remote celestial object, emitting large amounts of energy
The Big Bang Theory- a cosmological model that explains the early development of the universe
Dark Matter- a hypothetical substance that is believed by most astronomers
Dark Energy- unknown form of energy which is hypothesized to permate all of space
