Answer:
Plants may compete with other organisms like phytoplankton for sunlight, their source of light energy for photosynthetic reactions.
Explanation:
Abiotic factors or non-living factors in terrestrial ecosystems include temperature, rainfail, and light; in other aquatic ecosystems, they also include salinity, and water currents.
Plant populations belong to the biotic factors within an environment, and often complete with other organisms such as fungi, animals and bacteria.
For instance, plants share their photosynthetic ability with some bacteria. In aquatic biomes, both phytoplankton, and aquatic plants compete for available sunlight underwater in order to make energy via photosynthesis.
Antibodies have a variable region that binds to a specific antigenic determinant.
Antibody
An antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shaped protein used by the immune system to identify and neutralize foreign objects such as pathogenic bacteria and viruses. The antibody recognizes a unique molecule of the pathogen, called an antigen. Each tip of the "Y" of an antibody contains a paratope (analogous to a lock) that is specific for one particular epitope (analogous to a key) on an antigen, allowing these two structures to bind together with precision. Using this binding mechanism, an antibody can tag a microbe or an infected cell for attack by other parts of the immune system or can neutralize it directly (for example, by blocking a part of a virus that is essential for its invasion).
To learn more about the antibody refer here:
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The study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behavior, origin and distribution is called biology.
Answer:
The hypothesis can be made as follows:
' If there are less or no estuaries in a river, then there will be more erosion at the shorelines.'
A hypothesis is a tentative statement which can either be supported through experiments or proven to be wrong.
In the following scenario, we can conduct experiments by taking into observation those rivers which have estuaries and those which do not have estuaries. We can then compare the erosion of the shorelines of the rivers to validate our hypothesis.
Answer:
Internally in the female
Explanation:
internally in the female because that's where the sperm meets the egg
