Answer:
50%
Explanation:
homozygous recessive is rr
heterozygotes are Rr
Answer:
Option A
Explanation:
As we all know, energy can never be created . Also it can never be destroyed. However, it can only be changed from one form to the other. In this case, when a pool ball is striked by a stick, the kinetic energy of stick is transferred to the ball along with release of sound. Sound is just another form of energy.
Now, when this ball strikes other balls, the same process is repeated i.e the ball strikes another ball and passes on its kinetic energy along with release of sound energy. Every time sound is released, the amount of kinetic energy transferring from one body to other reduces.
Option A is correct
<h3><u>Answer;</u></h3>
is a relationship between distance and velocity
<h3><u>Explanation;</u></h3>
- According to Hubble's Law the recessional speed of a galaxy is directly proportional to its distance.
- <em><u>The Hubble Constant is the unit of measurement used to describe the expansion of the universe, it is the relationship of the recessional speed of a galaxy and its distance.</u></em>
- The formula showing the relationship is given by the formula:
v = Hd, where: v = velocity of a galaxy, in km/s. H = Hubble Constant, measured in km/s/Mpc and d is the distance in km.
The four types of fossils are:
<span><span>mold fossils = (a fossilized impression made in the substrate - a negative image of the organism)
</span><span>
cast fossils = (formed when a mold is filled in)
</span><span>
trace fossils = ichnofossils (fossilized nests, gastroliths, burrows, footprints, etc.)
</span><span>
true form fossils= (fossils of the actual animal or animal part).</span></span>
