The two normal types of sex chromosomes are
XXY and XYY
XX and XYY
XY and XXY
XX and XY
Correct answer is D
No explanation has been provided for this answer.
parenchyma
pericycle
phloem
hypodermis
Correct answer is B
No explanation has been provided for this answer.
The mammalian vein which starts with and ends in a capillary network is the
pulmonary vein
mesenteric vein
renal vein
hepatic portal vein
Correct answer is D
No explanation has been provided for this answer.
Which of the following produces both hormones and enzymes
ileum
pancreas
gall bladder
kidney
Correct answer is B
No explanation has been provided for this answer.
Water is necessary for a germinating seed because it
promotes aerobic respiration
activates the enzymes
wets the soil for proper germination
protects the seed from desiccation
Correct answer is B
No explanation has been provided for this answer.