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3 years ago

What is a long-term effect of the increased primary productivity of a terrestrial ecosystem

2 answers:

8 0

Answer: The primary productivity can be defined as the rate at which the energy is transformed by chemosynthetic and photosynthetic organisms to organic compounds.

If the primary productivity of an ecosystem increases the net primary productivity will also increase as net primary productivity represents energy available to primary consumers( energy remains after respiration and heat loss by primary producers), it will lead to availability of sufficient amount of food.

hoa [83]3 years ago

3 0

The long term effect is that the increased primary productivity of everything it consumes around its food web

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Justin has type A blood and his wife Brittany has type B blood. Justin's parents both have type AB blood, and Brittany's parents

Ad libitum [116K]

Answer:

Option D

Explanation:

Given

Justin has type A blood . Both the parents of Justin has AB blood type

Brittany has type B blood and both the parents of Brittany has AB blood type

This make it clear that -

Genotype of Justin is AA

Genotype of Brittany is BB

Now if Justin is crossed with Brittany , following blood groups in offspring is possible -

AA * BB

AB, AB, AB, AB

Thus, none of the offspring will have A blood group. Thus the chances that Justin and Brittany's son has type A blood is $0$ %

Option D is correct

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4 years ago

Who found that plants are composed of cells

liraira [26]

Robert Hooke discovered cell structure and named cell

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3 years ago

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Pesticides are used on crops to prevent the crops from being eaten by pests such as insects. The chemicals in the pesticides kil

Yuliya22 [10]

Answer:

<em>The correct option is A) The chemicals in the pesticides could run off into water sources and contaminate them, which would kill many aquatic species.</em>

Explanation:

Although pesticides can be helpful in eliminating the pests which thrive on crop plants, yet the usage of pesticides can be harmful in a number of ways. Increase in the usage of pesticides can be harmful for humans when they utilize food from such crops which is loaded with pesticides. Also, increased usage of pesticides causes the pesticides to run off in nearby rivers and lakes due to conditions such as a flood. The toxic pesticides kills the aquatic life present in that lake or river.

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4 years ago

Which statement about natural selection is true

Aleksandr-060686 [28]

please write the statements to get help

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3 years ago

Essay on atoms 70 words

Vinvika [58]

Answer:

The atom, the basic building block of matter, consists of a core nucleus surrounded by negatively charged electrons. Inside the atom nucleus contains a mixture of positively charged protons, and electrically neutral neutrons. All atomic electrons bind to the nucleus through electromagnetic force. A ground of electrons bound together will form individual molecules. An atom with an equal number of protons and electrons will hold neutral. An ion has positive or negative charge, either through a lack of electrons or an electron excess. The number of protons determines the formation of chemical elements, while as the number of neutrons determines the element's isotope. Most of the atom's mass has a concentration compacted within its nucleus; however, protons and neutrons hold about the same mass. Electrons bound to atoms hold a percentage of stable energy levels, otherwise known as orbitals, which undergo transitory processes through absorbing or omitting photons with equal energy levels. Electrons determine an element's chemical properties, thus influencing an atom's magnetic properties.

Explanation:

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3 years ago