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Hominins first appear by around 6 million years ago, in the Miocene epoch, which ended about 5.3 million years ago. Our evolutionary path takes us through the Pliocene , the Pleistocene , and finally into the Holocene, starting about 12,000 years ago.
OA. It only maintains the cell shape.
ОВ.
It removes waste and stores ingested food.
OC. It generates energy for the cell.
OD.
It controls the entry and exit of substances.
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Answer:
D. It controls the entry and exit of substances.
Explanation:
The cell membrane provides protection for the cell, transporting nutrients in and carrying toxic substances out.
Answer:
B
Explanation:
B.) Alleles
C.) Genotype
D.) Phenotype
Identify the phenotypes for the offspring of a parent with the genotype IBi and a parent with the genotype IAIA.
A.) Type O
B.) Type A, Type B, Type O
C.) Type A, Type AB, Type B
D.) Type a, Type B
a. True
b. False
The correct answer is B. False
Explanation:
In development, a growth spurt refers to a period of time in which individuals experience rapid growth or development. In the case of an adolescent growth spurt, this is a natural process that occurs to all individuals including boys and girls during puberty. This takes place because during adolescence the hormone levels change and this leads to rapid growth as well as development or maturation of bones, muscle and the sexual or reproductive system. According to this, it is false an adolescent growth spurt occurs only in boys because this is a natural process that occurs on both girls and boys.
Test Tube 6 - Sugar (Sucrose) and Heated Lactase Enzyme: Demetri fills the sixth test tube one-quarter full of sugar. He then adds the heated lactase-and-water solution until the test tube is three-quarters full. He thoroughly mixes the solution and inserts the test strip for 30 seconds. Demetri then records the color of the test strip.
According to the test strips, which of these sugar solutions contained glucose?
None of the sugar solutions contained glucose, and when the glucose strips were put in the sugar, they did not change color.
A test strip is a strip made up of cloth or different types of paper. The strips are used in chemical and biological tests, they turn or change their color, and identify the substance.
Here, the test strip will not show any color, because glucose is not present in any of the solutions as mentioned.
Thus, the glucose strips did not change color when placed in the sugar, and none of the sugar solutions contained glucose.
Learn more about test strip, here:
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Answer:
a. 81/256
b. 175/256
C. 1/4
D. 9/256
E. 54/256
Explanation:
Since both parents are heterozygous for galactosemia (Gg). The possibility of their children will be
GG Gg Gg gg. The probability for one child to be unaffected is 3/4 and affected is 1/4 since it is a recessive diseases:
A. Probability for none of the four children to be affected is 3/4*3/4*3/4*3/4=81/256
B.
Since the probability of unaffected children is 81/256
The probability that at least one child will be affected is 1-(3/4*3/4*3/4*3/4)=1-(81/256)
= 175/256
C. The probability that only one if the child will be affected is 1/4
D. The probability that the first two will have galactosemia and the second two will not is
1/4*1/4*3/4*3/4=9/256
E. The probability that two will have galactosemia and two will not, regardless of order.
Since the probability that two will have galactosemia and two will not is 9/256.
The total possible outcome that 2 among 4 children will be born regardless of order (first and second, first and third, first and fifth, second and third, second and fourth, third and fourth) is 6
Hence the probability two will have galactosemia and two will not, regardless of order is 9/256*6= 54/256