Organs of excretion make up the excretory system, and excretory system is composed of a dorsal excretory gland and a pair of Malpighian tubules. Given these facts, what are organs of excretion among the following options: - kalenchoes - Malpighian tubes - solid, liquid, gas - ankles - rocks - tibias - the body's largest organ - Veins and arteries.
Malpighian tubes

(Question)
Conserving water can be used for survival in a dry environment, and deserts are usually very, very dry. Given these facts, where can conserving water be used for survival in among the following options: - our planet - oceans - rivers - deserts - watershed - clouds - Mountains - soils
(Answer)
deserts

Ques: Lack of moisture in the air causes low amounts of rainfall, and if there is enough moisture in the clouds, rain is produced. Given these facts, what's one reason it won't rain among the following options: - fissures of hot, acidic water - a hemisphere is tilted away from the sun - Warm and cold air meet - The clouds don't have enough water - The clouds have too much water - Too much moisture in the environment - decreases the freezing point - erosion from rivers
Ans: The clouds don't have enough water

(Q).
Fossils are formed when layers of sediment cover the remains of organisms over time, and plants and animals are organisms. Given these facts, what forms when plants are covered in layers of sediment over time among the following options: - Conifers - watershred - fossils - H2O - Echinoids - bubbles - loose soil - bones
(A).
fossils

Ques:Fish have a circulatory system with a two-chambered heart, and fish Fish are the ultimate aquatic organism. Given these facts, the ultimate aquatic organism has a circulatory system with a how many chambered heart. among the following options: - ligt - moss - Frog - tube - clam - two - size - Aves

Ans:two

Question: Energy is used for heating a building by a heating system, and geothermal energy is used for heating and cooling systems. Given these facts, what is a way to heat a building among the following options: - sound - Movement of an air mass - burning coal - static electricity - In the winter - potential energy - by indirect light - geothermal energy
Answer:
geothermal energy