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lubasha [3.4K]
2 years ago
8

Field mustard is an annual plant that grows wild in many regions of the world. It has small yellow flowers and is pollinated by

insects. Field mustard has to flower and produce seeds to give rise to the next generation. Southern California experienced a severe drought between 2000 and 2004. Plants that flowered earlier reproduced. Those that flowered later died without producing seeds. This led to more early-flowering field mustard plants. This change in population characteristics took only a few generations.
How do you think scientists discovered that the flowering time of the field mustard had changed?
Biology
1 answer:
Artyom0805 [142]2 years ago
6 0

Answer:

Due to early flowering in the mustard plant.

Explanation:

The scientists discovered that the flowering time of the field mustard had changed by observing more mustard plants which produces earlier flowers. The behaviour of the mustard plant change due to the change that occur in the environmental conditions that leads to early flowering in mustard plant. If this early flowering occurs for more generation, then the mustard plant will adopt this type of behaviour in normal environmental conditions that experience by the mustard plant.

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Anettt [7]

Answer:

Norepinephrine

Explanation:

Nerve cells and circulating hormones are the one responsible for vasoconstriction of the vessel walls, as they do not enter the tunica media of the blood vessel, the nerves do not synapse directly on the smooth muscle cells. Instead, they release the neurotransmitter, norepinephrine, which diffuses into the media and acts on the nearby smooth muscle cells, which result in contraction of the entire muscle cell layer and thus reducing the radius of the vessel lumen.

3 0
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What environmental disaster can be attributed to over-population and over-use of resources by humans?
Damm [24]
Pollution in pretty sure
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3 years ago
How the population environment and health are related with different aspects? Elaborate
lesya692 [45]

Answer:

The aspects of that natural resources like air, water, soil etc aspects include the existence,these aspects of population health and environment.

Explanation:

Population environment and the health is to the approach human development to conservation, health, population is the deep relationship that not only related to each other.

population environment or health is the process can perform effect of population growth in health and environment aspects, other hand population controlled balanced a environment, produce healthy people.

Biological aspect :- health and population are related with the biological aspects of that environment, health, and population aspects of environment related to each other.

Social aspects:- social and cultural aspects like to the festivals, tradition living standards  aspects environment, population and health are related each other.

Physical aspect:- the development construction bridge,canals, industries that are physical environment, these aspect interrelated health and population.

Economic aspect :- economic aspect is reflected by the health of the people,resources like water, plants, land.  

6 0
3 years ago
Which of the following is not an example of an adaptation? A . an individual choosing to put on a coat to stay warm B . the whit
hodyreva [135]
A. Hope this helps!!!
3 0
2 years ago
Read 2 more answers
What is waste water treatment ?
Scilla [17]
What is waste water treatment ?

“The major aim of wastewater treatment is to remove as much of the suspended solids as possible before the remaining water, called effluent, is discharged back to the environment.”

My source is from www.usgs.gov
8 0
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