IdeasCuriosas - Every Question Deserves an Answer Logo

In Biology / College | 2025-07-04

78. Which of the following is a vestigial organ?
a) Wings of Pigeon
b) Wings of Ostrich
c) Wings of Butterfly
d) Patagium of bat
79. Which of the following phylum is heemacoelomate?
a) Respiration
b) Digestion
c) Excretion
d) Osmoregulation

Asked by acharyagonin34

Answer (2)

The wings of the ostrich are a vestigial organ, as they no longer provide the function of flight. The phylum Arthropoda is classified as hemacoelomate, characterized by a hemocoel for circulation. These concepts illustrate important adaptations in evolutionary biology.
;

Answered by Anonymous | 2025-07-04

The wings of ostrich serve as a vestigial organ as they no longer function for flight. Hemacoelomate organisms include those in the phylum Arthropoda, which possess a hemocoel for circulation. These concepts illustrate evolutionary adaptations and body organization in biology. ;

Answered by GinnyAnswer | 2025-07-04

Related Questions in Biology

[Answered] A) Constitutive Perhaps 60-80% of genes are not regulated, but are C) Degenerative D) Repressed B) Continuous

[Answered] Which statement about the scientific method is true? A. The scientific method involves developing and testing conclusions. B. The scientific method is a linear approach to accumulating scientific knowledge. C. The scientific method is used in different ways by different scientists. D. The scientific method involves developing a question to answer a hypothesis.

[Answered] What characteristic of skeletal muscle fibers allows them to contract and move bones? A) The presence of thick and thin myofilaments organized into sarcomeres. B) The fibrous epimysium surrounding the fibers. C) The rich supply of blood vessels in skeletal muscle. D) The multinucleated structure of the fibers.

[Answered] Through which conversion is energy released? A. ADP to ATP B. ATP to ADP C. NADP${}^{+}$ to NADPH D. $CO _2$ and $H _2 O$ to $C _6 H _{12} O _6$ and $O _2$

[Answered] The regulation of the lactose operon depends on the level of which of the following substances in the medium? A) DNA polymerase B) RNA polymerase C) Lactose D) Glucose E) C & D