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butalik [34]
3 years ago
15

What does a Euglena require to exhibit phototactic behavior?

Biology
1 answer:
pentagon [3]3 years ago
3 0

Answer:

C

Explanation:

Phototaxis (phototactic response) is the cellular behavior in which cells swim toward or away from the light source. The euglena have eyespots that detect light so that it can move toward sunlight for photosynthesis.

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Through which process are oxygen atoms made available to the cells of
iragen [17]

Answer:

A. Respiration

Explanation:

The process in which oxygen atoms are made available to the cell of animals is called cell respiration. In cell respiration the food molecules undergo process which is called food oxidization, that make it available to be absorbed by the animal cell.

8 0
3 years ago
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Plants and animals are both _____.
kolezko [41]
Plants and animals are both "organisms" or "living organisms" if you prefer.

An organism is basically a group of different organs functioning together (hope this was the easiest way to explain it).

Hope it helped,

Happy study/ homework/ exam!
4 0
3 years ago
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Which of the inner transition metals is critical to the nuclear power industry.
Rom4ik [11]

Answer:

<u>Uranium</u> is the  inner transition metals is critical to the nuclear power industry.

Explanation:

Uranium is a common transition metal found in rocks and is used for nuclear fission reactions. In a nuclear fission reaction, a neutron atom is hit on a uranium atom. As a result, the uranium atoms breaks down releasing huge amounts of energy. Also, more neutrons are released by the breakdown and hence the this neutron hits other uranium atoms and the cycle continues. The most active radioisotope of uranium being used in nuclear fission reactions is U-235.

8 0
3 years ago
What two elements have the same number of energy level (shells)?
melomori [17]

Answer:

Elements that are found in the same horizontal row (belong to the same period) in the periodic table, e.g. Fluorine and Neon both have the same energy level of 2.

<em>Note: The question does not specify any two elements.</em>

Explanation:

The modern periodic table is organized into eight vertical columns known as groups and seven horizontal rows known as periods. The atomic number ( number of protons in the nucleus) of elements increases when moving across the periodic table from left to right. The horizontal rows or periods represents an energy levels or the number of electron shells in an element. Energy levels (also called electron shells) are fixed distances from the nucleus of an atom where electrons may be found. Elements belonging to the same period have the same number of energy level or shells. For example, the elements belonging to Period 2 include lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine and neon. These all have the same number of energy level of 2.

7 0
3 years ago
although a fetus is relatively protected in the mothers womb a number of different toxins can harm the fetus
SCORPION-xisa [38]
Yes ur eight but there r certain products that can heurt the fetus
4 0
3 years ago
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