The square denotes male. One parent is recessive, so X must have at least one recessive allele. B is the right answer.
The answer is d. <span>animals with transmissible diseases separated from healthy animals.
An isolation ward is a separate ward used to isolate animals (or people) suffering from some transmissible diseases in order to reduce a</span><span> risk of passing a potential infection on to others.</span>
Answer:
White Dwarf Stars.
Explanation:
A white dwarf is what stars like the Sun become after they have exhausted their nuclear fuel. Near the end of its nuclear burning stage, this type of star expels most of its outer material, creating a planetary nebula. Only the hot core of the star remains.
Answer: Genetic Change
Explanation:
Mutations contribute to genetic variation by causing new traits to emerge. Mutations happen when there is a change in the DNA of a creature developing in utero. These random changes in creatures are common, although most mutations end up being lethal or inhibiting to the organism. In rare cases, this mutation can prove benificial or helpful, and if the organism reproduces and the trait is passed along, it could become a new branch of genetic variation within the species.
