The correct answer is option B. Places of worship.
The Chavin culture is one of the ancient civilizations, which is extinct now. The Chavin buildings were built by the people living that era. These buildings are the archaeological sites, and many artefacts are found in these buildings. The buildings are now used as a place of worship now a days. The buildings are found in Peru, and thought to be constructed around 1200 BC.
Answer:
Option A, most closely related to mammals
Explanation:
Insects like arthropods and molluscs have an open circulatory system and thus do have a distinguishable heart. Fish has two chambered heart. Reptiles have three chambered heart. Amphibians too have a three chambered heart.
All mammals and fish have four chambered heart. The right and left sides of the chambers have restricted entry and hence remain intact from each other
Hence, option A is correct
Gametes, or sex cells, are located in different parts of the body based on the individual's sex. In males, they are found in the testes, and in females, they are found in the ovaries. In plants, they are found within the reproductive structures.
Gametes are the sex cells that are located in different parts of the body depending on the sex of the individual. In males, sperm, which are the male gametes, are produced and stored in the testes. In females, eggs, or ovum, which are the female gametes, are produced in the ovaries. In terms of plants, gametes are found in the reproductive structures, such as flowers and cones. For instance, in flowering plants, the male gametes are located within the pollen grains produced by the anthers, and the female gametes are located within the ovule in the ovary of the flower.
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Answer;
People who have gene mutations have more treatment options.
Explanation;
-Breast cancer is a complex disease with no simple solution, which is why researchers are tackling it from every angle. Researchers around the world are working to find better ways to prevent, detect, and treat breast cancer, and to improve the quality of life of patients and survivors.
-Some of the active areas of research include; Breast cancer causes, causes and treatment of metastatic breast cancer, reducing breast cancer risk, and breast cancer treatment among others.
Answer:
C. Cholesterol
Explanation:
Cholesterol maintains the fluidity of the cell membrane and thereby, regulates its function.
Bile acids are derived from cholesterol which serves as their precursor. For example, Taurocholic acid is a polar derivative of cholesterol. Bile acids serve in the absorption of fatty acids, glycerol, and fat-soluble vitamins as these compounds are non-polar in nature.
Vitamin D is produced when the derivative of cholesterol, 7-dehydrocholesterol undergoes photolysis in skin cells in presence of sunlight.
aerobic, heterotrophic bacteria
anaerobic, autotrophic bacteria
anaerobic, heterotrophic bacteria
Answer:
Early organisms would have to be anaerobic, as air was likely non existent. This rules out the first two options.
Autotrophic can be called producers, and heterotrophic can be called consumers.
The question states that "did not use oxygen for respiration and were unable to make their own food"
Only one option satisfies the question:
anaerobic, heterotrophic bacteria
Answer:
Anaerobic, heterotrophic bacteria
Explanation:
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