Assertion Mother can pass on syphilis bacteria to their developing foetus.
Reason Placenta can become permeable to some pathogens.

During gestation, heart sound of developing foetus can be heard.

Assertion. Placenta functions as a temporary endocrine gland during development. Reason. Placenta produces pheromones..

Identify the correct Assertion and Reason Assertion : Bacteria develop resistance to antibiotics. Reason : We take antibiotics for minor infections also.

Assertion :- Lactic acid bacteria are useful for human. Reason :- Lactobacillus can perform retting.

Assertion :- Lactic acid bacteria are useful for human. Reason :- Lactobacillus can perform retting.

Assertion :- Lactic acid bacteria are useful for human. Reason :- Lactobacillus can perform retting.

Assertion : Intercropping checks the population of insects. Reason : Plant pests can be controlled biologically by their natural parasites and pathogens.

Assertion : Ecological succession can tum a lake into a dryland forest with time. Reason : A bare rock can become a forest through ecological succession.

Assertion : Ecological succession can turn a lake into a dryland forest with time . Reason : A bare rock can become a forest through ecological succession .