Explanation

The Experimental method requires hands-on activities and individual attention, which is difficult in overcrowded classrooms.

It is less practical compared to methods like Lecture or Demonstration in large groups.

Explanation

A terrestrial food chain typically starts with a producer (like grass), followed by primary consumers (herbivores like grasshoppers), then secondary consumers (like snakes), and ends with top predators (like eagles).

This sequence shows the correct flow of energy from plants to top carnivores.

Explanation

Passage

I grew up in the south of Spain in a little community called Estepona. I was 16 when one morning my father told me I could drive him into a remote village called Mijas, about 18 miles away, on the condition that I take the car in to be serviced at a nearby garage.

1. The first sentence of the passage is in _____?

Past tense

2. Condition is a _____ in thi passage.

Adverb

Explanation

According to the pressure flow theory, roots can act as a sink (when storing food) and as a source (when mobilizing stored food).

This dual role depends on the plant’s growth stage and seasonal needs.

Explanation

In indirect speech, present tense "am" changes to "were", and "today" changes to "that day."

The reporting verb "said" is in the past tense, so the reported speech must also shift accordingly.

Explanation

Gastric juice is composed of approximately 90% water, which helps dissolve food and enzymes.

The remaining 10% includes hydrochloric acid, enzymes like pepsin, and mucus.

Explanation

Marijuana is derived from the dried parts (flowers, stems, seeds, leaves) of Cannabis sativa.

It contains psychoactive compounds like THC.

Explanation

Potassium (K) regulates stomatal opening/closing by controlling guard cell turgidity, reducing water loss (transpiration).

It maintains osmotic balance.

Explanation

Environmental psychology studies the interaction between humans and their surroundings, including natural and built environments.

It focuses on how environments influence behavior, well-being, and cognition.

Explanation

A probe is a short, single-stranded DNA or RNA sequence that binds to a complementary gene of interest.

It is used to screen genomic libraries for specific genes.