Life Processes (HBBVS)

This is the correct answer as some plant waste gets stored in fruits of plants in the form of solid bodies. Raphides are needle-shaped crystals of calcium oxalate as monohydrate or calcium carbonate as aragonite, found in more than 200 families of plants.

This is the correct answer as this statement is true.

This is the correct answer as both these statements are correct.
Carbon dioxide and urea are two waste products of the human body that are produced by the human cells.
Some organisms store wastes in body parts.

They are parasites.

The process in which digested food passes through the intestinal wall into the blood stream is called absorption. This is the correct answer.

This is the correct answer as both 'b' and 'c' are examples of the life processes 'nutrition' and 'response to stimuli'.

Amoeba ingests food by using pseudopodia. This is the correct answer.

This is the correct answer. The enzyme pepsin begins the digestion of proteins present in the food to form smaller molecules. Thus, protein digestion begins in the stomach itself.

This is the correct answer. The human saliva contains an enzyme called salivary amylase and the function of this enzyme is to digest the starch present in food into sugar.

This is the correct answer. Bile is a fluid that is made and released by the liver and stored in the gall bladder. It helps with digestion. It helps enzymes in our body to break down fats into fatty acids, which can be taken into the body by the digestive tract.

This is the correct answer. The exit of food from the stomach is regulated by the sphincter muscle in the stomach. It releases food in small amounts to the small intestine.

This is the correct answer. Small intestine receives secretions from two glands namely, pancreas and liver. Pancreas is a large gland that lies parallel to and beneath the stomach.

This is the correct answer option as all the given statements are correct.

This is the correct answer as the heart pumps blood to the gills in fishes (pisces) and not to different parts of the body. Fishes have a two-chambered heart.

This is the correct answer as both statements 'b' and 'c' are incorrect. Undigested food is stored in rectum. Undigested solid food is egested from the body through the anus.

This is the correct answer as the respiratory organ of an earthworm is its skin.

This is the correct answer. In the circulatory system, blood flows through three types of vessels. These are veins, arteries and capillaries.

This is the correct statement. Paramecium uses its hair-like structures called cilia for ingestion of food.

This is the correct answer choice as this statement is incorrect. The pulse rate of an adult while resting is 70 to 72 per minute.

Yeast is not an autotroph. It does not use photosynthesis for its nutrition.

This is the correct answer. The plants are green because they have green chloroplasts (organelles that carry out photosynthesis). Chlorophyll is a pigment found in the thylakoid membranes of the chloroplasts in the leaves.

This is the correct answer. 

This is the correct answer as both the statements are correct.

This is the correct answer. During the process of respiration, food is oxidised in mitochondria of the cells to release energy.

This is the correct answer as all the given statements are correct.

Haemoglobin is the red pigment that gives the red blood cells their colour.
This is the correct answer. Platelets help in the blood clotting during cuts or wounds. 

This is the correct answer as all the statements are correct.

Arteries are thick walled blood vessels which carry blood from heart to all parts of the body.

Veins are thin walled blood vessels that carry blood from organs to the heart.

The pulmonary and the umbilical arteries carry deoxygenated blood.