Answer is C, its the study of interactions between organisms and their environments.
Answer: Timeouts
Explanation:
Timeouts can be effective discipline for toddlers. A child who has been hitting, biting, or throwing food, for example, should be told why the behavior is unacceptable and taken to a designated timeout area
Answer:
Evaporator coils are more difficult to leak search because the are cased and difficult to access. However, like the condenser coil there is a quick way to determine if there is a leak in the evaporator coil. Cut or locate an opening in the condensation drain that is below the coil.
Explanation:
Answer:
Option D
Explanation:
Options for the question
A) The Y chromosome is slower to mature than the X chromosome.
B) Replication of the X chromosome occurs more often in males.
C) Male hormones cause the expression of X-linked traits.
D) Males only have one copy of the X chromosome
Given-
Duchenne muscular dystrophy (DMD) is an X-linked recessive condition which means it will occur in male even if they have one diseased X gene. While females will have this disease only when they have two diseased X gene
Hence, in most of the cases women with only one diseased X chromosome act as carrier and show normal traits.
Let us assume X is normal gene and X' is the diseased gene then
Genotype of normal father will be - XY
Genotype of carrier mother will be - XX'
Now if these two mates, following offspring will be produced
XY * XX'
XX, XX', XY, X'Y
So the male with X'Y will have DMD
Hence, option D is correct
