Explanation

The Law of Independent Assortment states that alleles for different traits are segregated independently of one another during gamete formation.

This is illustrated in a dihybrid cross where two pairs of contrasting traits are examined.

Explanation

A hygrometer is an instrument used to measure the moisture content or humidity level in the air.

It often used in weather forecasting and environmental studies.

Explanation

Calcium is the most abundant mineral in the human body, making up 1.5 to 2% of the total body weight.

Approximately 1,200 g of calcium is present in the body of an adult human; more than 99% of that amount is found in bones.

Explanation

Spiders, ticks, and mites belong to the class Arachnida.

They are characterized by having eight legs and a body divided into two main segments.

Explanation

• A Periscope is an optical instrument used to observe objects that are not in direct line of sight.
• Such as monitoring the surface of the water from a submarine.

Explanation

Lowland plains cover more than 50% of the Earth's crust, including river valleys and coastal areas.

These regions are fertile and densely populated, supporting agriculture and human settlements.

Explanation

• An ecosystem includes all the living components (biotic factors) like plants, animals, and microorganisms, and non-living components (abiotic factors).
• Like soil, water, air, and sunlight, interacting with each other.

Explanation

Memory is a process comprised of three stages. 

All information received by our senses goes through these stages:-

1. Encoding: It is the process of converting sensory information into a form that can be processed further by memory systems.
2. Storage: In this second stage, received information from memory systems is stored so that it can be used at a later time also.
3. Retrieval: It refers to locating and bringing the stored material information to one’s awareness when required to complete a task.

Explanation

The atmospheric pressure at any place is measured by a Barometer

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The barometer was invented by Evangelista in 1644.

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Explanation

The statement that Cycas have vessel elements in their xylem is incorrect.

Cycas, like other gymnosperms, do not have vessel elements; instead, they have tracheids for water conduction.

Vessel elements are a characteristic of angiosperms (flowering plants).

Cycas are gymnosperms and produce seeds, but they do not form flowers, and their leaves are typically pinnately compound.