Answer:
D. They can cause changes in body shape
Explanation:
Homeotic genes are evolutionarily conserved genes that regulate the development of body parts. Mutations in these genes can eventually produce changes in body patterning. In animals, for example, Hox genes are homeotic genes that encode transcription factors which contain evolutionary conserved DNA binding region (i.e., homeodomain). Both in invertebrates and vertebrates, Hox genes (Hox) play key roles in global body patterning. In plants, MADS-box genes are well-known homeotic genes that have key roles during embryo, inflorescence and flower development.
1. Individual: any living being.
2. Population: same group of species that live in a paricular geographical area.
3. Community: a group of interdependent organisms of different species growing or living together in a specified habitat
4. Ecosystem: a community of living organisms called producers, consumers, and decomposers.
5. Biosphere: region of the surface, atmosphere, and hydropsphere of the earth occupied by living organisms.
When we inhale and exhale a process known as breathing takes place. During breathing ; gaseous exchange , that is ; excretion of carbon dioxide and inhalation of oxygen takes place.
Remark : - Dont confuse respiration and breathing. They are different processes. Breathing simply means inhalation of oxygen and exhalation of carbon dioxide ; while respiration means involves breakdown of food and it is a deeper process.
Answer:the idea that species change over time, give rise to new species, and share a common ancestor.
Explanation:
to better cope with environment