Biology Questions Practice Question and Answer
8Q: Ozone hole refers to which 1257 05c49785a85451c5d3308c03c
5c49785a85451c5d3308c03c- 1hole in ozone layerfalse
- 2decrease in the ozone layer in tropospherefalse
- 3decrease in thickness of ozone layer in stratospheretrue
- 4increase in the thickness of ozone layer in tropospherefalse
- 5hole in ozone layerfalse
- 6decrease in the ozone layer in tropospherefalse
- 7decrease in thickness of ozone layer in stratospheretrue
- 8increase in the thickness of ozone layer in tropospherefalse
- 9hole in ozone layerfalse
- 10decrease in the ozone layer in tropospherefalse
- 11decrease in thickness of ozone layer in stratospheretrue
- 12increase in the thickness of ozone layer in tropospherefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "decrease in thickness of ozone layer in stratosphere" 7. "decrease in thickness of ozone layer in stratosphere" 11. "decrease in thickness of ozone layer in stratosphere"
Q: In human body, Vertebrae are part of______.
1200 05ee86498c9ddb00b8bdaa8a8
5ee86498c9ddb00b8bdaa8a8- 1Intestinefalse
- 2Liverfalse
- 3Spinal cordtrue
- 4Brainfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Spinal cord"
Explanation :
(C) Spinal cord
Vertebrae are part of the spinal column, also known as the backbone or spine. The spinal column is a bony structure that encases and protects the spinal cord, which is a crucial component of the central nervous system. The spinal cord is responsible for transmitting signals between the brain and the rest of the body, allowing for communication and coordination of various bodily functions.
Q: Which of the following is true of kinetochores? 3667 05b5cc5ffe4d2b4197774b3f4
5b5cc5ffe4d2b4197774b3f4- 1They are the primary centrosome structures that maintain the attachment of the sister chromatids prior to mitosis.false
- 2They are the sites at which microtubules attach to chromosomes.true
- 3They are located at the center of the centrosome and organize tubulin into spindle fibers.false
- 4They cross at the cell's equator and move against each other, causing the cell to elongate.false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "They are the sites at which microtubules attach to chromosomes."
Explanation :
Answer: B) They are the sites at which microtubules attach to chromosomes. Explanation: They are the sites at which microtubules attach to chromosomes.
Q: Photosynthesis contributes to plant growth by 1954 05b5cc601e4d2b4197774b471
5b5cc601e4d2b4197774b471- 1taking in carbon dioxide and making carbohydrates (sugars)true
- 2converting sugar to oxygen and waterfalse
- 3taking in oxygen and making woodfalse
- 4synthesizing carbon dioxide and making cellulosefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "taking in carbon dioxide and making carbohydrates (sugars)"
Explanation :
Answer: A) taking in carbon dioxide and making carbohydrates (sugars) Explanation: Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms activities.
Q: What organelle carries out photosynthesis? 1266 05b5cc607e4d2b4197774b53f
5b5cc607e4d2b4197774b53f- 1Chloroplaststrue
- 2Ribosomesfalse
- 3Chromosomesfalse
- 4All of the abovefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Chloroplasts"
Explanation :
Answer: A) Chloroplasts Explanation: Chloroplasts contains chlorophyll, the green substance in plants that allows them to create food from carbon dioxide and water called as photosynthesis.
Q: Photosynthesis generally takes place in which parts of the plant? 1348 05c497b5485451c5d3308c06d
5c497b5485451c5d3308c06d- 1Leaf and other chloroplast bearing partstrue
- 2stem and leaffalse
- 3Roots and chloroplast bearing partsfalse
- 4Bark and leaffalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Leaf and other chloroplast bearing parts"
Q: What plant breeders should they do to produce an immunogenic species?
940 05ee8386c109b5d6e015dc23b
5ee8386c109b5d6e015dc23b- 1Selectiontrue
- 2Mutationfalse
- 3Crop productionfalse
- 4Hybridizationfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Selection"
Q: Is the center of intelligence and cleverness in the human brain?
2297 05f082f8f8e448621429eccc0
5f082f8f8e448621429eccc0- 1Cerebrumtrue
- 2Cerebellumfalse
- 3Hypothalamusfalse
- 4Spinal cordfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice