of consistent cool temperature
of availability of moisture
of the relatively constant day light
there are more plants
Correct answer is B
Decomposition is the process by which dead organic matter, such as dead plants and animals, is broken down and recycled back into the ecosystem as nutrients. The rate of decomposition is influenced by various factors, and in the tropical rainforest biome, the availability of moisture is a critical factor that accelerates decomposition.
Which of the following hormones is wrongly paired with its secretory organ?
oestrogen and ovary
Oxytocin and hypothalamus
adrenalin and kidney
insulin and pancreas
Correct answer is C
Adrenalin, also known as epinephrine, is not secreted by the kidney. It is secreted by the adrenal glands, specifically the adrenal medulla. The adrenal glands are small, triangular glands located on top of both kidneys. Therefore, the option 'Adrenalin and kidney' is incorrect
the foetus is deprived of nourishment
they have poor circulatory system
the blood of the foetus might clump
the woman is susceptible to diseases during pregnancy
Correct answer is C
The stillbirth of a second child that is Rh-positive in an Rh-negative woman can occur due to the clumping of fetal blood caused by the production of Rh antibodies in the mother's immune system during a previous pregnancy with an Rh-positive baby. This condition, known as hemolytic disease of the newborn, can be prevented with appropriate medical interventions like Rh immunoglobulin injections.
Which of the following factors is the main problem facing xerophytes?
Conservation of excess water
competition for sunlight
lack of adequate water
formation of poor roots
Correct answer is C
Xerophytes are plants that have adapted to survive and thrive in arid or dry environments, where water availability is limited. They have evolved various adaptations to cope with the scarcity of water. However, the primary challenge for xerophytes remains the lack of adequate water.
Which of the following instruments is not used in measuring abiotic factors in a habitat?
microscope
Wind vane
thermometer
hygrometer
Correct answer is A
Abiotic factors refer to the non-living components of an ecosystem or habitat that can influence the living organisms within it. Microscope: A microscope is not used to measure abiotic factors. Instead, it is an instrument used to observe and magnify tiny living or non-living things, such as cells, microorganisms, or small structures.