Explanation

Annelids do have a closed circulatory system, along with other invertebrates and vertebrates

Annelids, like earthworms, have a closed circulatory system.

In annelids, blood is pumped along by muscles in blood vessels.

The blood picks up food molecules from the digestive tract and oxygen from the skin.

It then transports these to the cells of the body. 

Explanation

To arrange the groups in increasing order of species richness (i.e., from fewest to most species), let's look at general estimates of known species:

• Mammals – ~6,400 species
• Reptiles – ~11,000 species
• Fishes – ~34,000 species
• Insects – Over 1 million described species (possibly several million undiscovered)

Explanation

• The giraffe is the tallest animal in the world,
• Males can grow up to 18 feet (5.5 meters) tall
• Females can reach 14 feet (4.3 meters) tall

Additional Information

Kangaroos a tall and so strong they are able to stand on it

The dog is known to be man's best friend

Ostriches have bigger eyes than their brain

The fastest land animal is the cheetah

The longest-living animal is the whale

The whale has the Largest brain

Elephant has the largest ears

 Last updated NA 12-04-2026

Explanation

The minke whale, or lesser rorqual, is a species complex of baleen whale.

The two species of minke whale are the common minke whale and the Antarctic minke whale. 

Explanation

Pyrimidine: A nitrogenous base similar to benzene (a six-membered ring) and includes cytosine, thymine, and uracil as bases used for DNA or RNA.

Adenine is a purine nucleobase

Adenine, guanine, and cytosine are common nitrogenous bases present in both DNA and RNA

Explanation

• Water vascular system in echinoderms used for Respiration
• ***
• The Water Vascular system in echinoderms is also used for locomotion, food, and waste transportation.
• The water vascular system helps in respiration, as the gaseous exchange takes place on the thin wall of feet tubes.
• The system consists of a central ring canal and radial canals extending along each arm
  

Explanation

Explanation

The primary benefit of conserving hawks and owls to mankind 

They naturally control populations of rodents and other small animals that can cause damage or spread diseases.

These birds of prey are apex predators,

They play a crucial role in maintaining the balance of ecosystems.