Green plants remove carbon dioxide from the atmosphere by photosynthesis.
The changes that occur during puberty are mostly a result of changes in hormone levels in the body.
<h3>Puberty</h3>
The transition from a child to an adult is caused by changes in the level of some hormones in the body.
In females, there is an increase in follicle-stimulating hormones as well as luteinizing hormones, leading to an increase in the production of progesterone.
In males, there is an increase in the production of testosterone hormone among many other hormones.
Both progesterone and testosterone are responsible for the development of physical features in females and males respectively.
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Cohesive and adhesive properties of water are involved in essential biological properties such as nutrients intake.
<h3>What is the cohesive property of water?</h3>
This describes the tendency of water to create strong bonds between molecules.
<h3>What is the adhesive property of water?</h3>
This describes the tendency of water to create strong bonds with other molecules.
<h3>How are these properties related to life processes?</h3>
- Cohesion makes it possible for plants to move water from their roots to other parts of the plants.
- Cohesion causes it is easier to regulate the inner body temperature.
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Answer:
This question lacks options; they are:
a. 4x b. 10x c. 20x d. 100x
The answer is A
Explanation:
The objective lens is an integral part of a light microscope as it provides the viewer with the picture or image of the specimen. There are several types of objective lens depending on their magnification.
The lowest possible objective lens with the power of 4x is called the SCANNING OBJECTIVE. In combination with the eye/occular lens, it provides a magnification of 4x × 10 = 40x. The name of this lens comes from the fact that it provides a full scan of every part of the specimen being viewed before diversifying into a specific region by changing the objective.
DDT has adverse affect on our environment due to its presence for a long time.
<h3>What is DDT?</h3>
DDT is an insecticide that can pass up in the food chain i.e. from insects to small birds, and then from small birds to big birds like hawks. High concentrations of DDT in birds leads to weakness in the egg shells.
This leads to a decrease in their population so we can conclude that DDT has adverse affect on our environment due to its presence for a long time.
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