Biology

The intensity of competition among animals in a given area will increase with?

A. an increase in the frequency of disease outbreaks B. an increase in population size C. a decrease in immigration…

4 years ago

Mendel’s second law of inheritance states that?

A. alleles combine randomly B. alleles segregate independently C. alleles separate predictably D. chromosomes segregate independently Correct Answer: Option B…

4 years ago

One advantage of variation in a species population is that individuals?

A. with favoured traits become dominant B. easily reach their reproductive age C. are easily recognized by mates D. are…

4 years ago

The two normal types of sex chromosomes are?

A. XXY and XYY B. XX and XYY C. XY and XXY D. XX and XY Correct Answer: Option D…

4 years ago

In the transverse of a dicot sperm, the region lying between the endodermis and the vascular bundle is the?

A. parenchyma B. pericycle C. phloem D. hypodermis Correct Answer: Option B - pericycle

4 years ago

The mammalian vein which starts with and ends in a capillary network is the?

A. pulmonary vein B. mesenteric vein C. renal vein D. hepatic portal vein Correct Answer: Option D - hepatic portal…

4 years ago

Which of the following produces both hormones and enzymes?

A. ileum B. pancreas C. gall bladder D. kidney Correct Answer: Option B - pancreas

4 years ago

Water is necessary for a germinating seed because it?

A. promotes aerobic respiration B. activate the enzymes C. wets the soil for proper germination D. protects the seed from…

4 years ago

The formation of water in the tissue respiration results from the?

A. breakdown of water molecules B. reduction of oxygen by hydrogen C. reduction of carbon(IV) oxide D. combination of water…

4 years ago

In rabbit the chamber of the heart that receives oxygenated blood from the lungs is the?

A. left ventricle B. left auricle C. right ventricle D. right auricle Correct Answer: Option B - left auricle

4 years ago