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Svetllana [295]
1 year ago
10

What is the smartest animal on earth?and why?

Biology
1 answer:
shtirl [24]1 year ago
6 0

Answer: Dolphins

Explanation:

Dolphins are well-documented as intelligent animals. They can recognize themselves in a mirror and communicate with each other. Their large brain is structured for awareness and emotion, and dolphin brains are even more structurally complex than those of humans.

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Photosynthesis and cellular respiration are considered opposites. why?
motikmotik
Because Photosynthesis is the process used by plants and some bacteria to create energy from sunlight. ... Cellular respiration uses glucose, or sugars, from food molecules and turns them into carbon dioxide.
Hope that helped!
5 0
3 years ago
Plants participate in both short- and long-distance signaling. Explain how nerve cells show these two functions, as well. (3 poi
olya-2409 [2.1K]

Answer:

Nerve cells release chemical signals into synapses between them (short distance). They also transverse their lengths with an electrical signal that can result in signal travel along a series of cells (long distance).

Explanation:

Nerve cells release neurotransmitters in the synaptic cleft which are capable of affecting nearby cells such as other nerve cells and muscle cells. Neurotransmitter molecules include, among others, serotonin, acetylcholine, dopamine, norepinephrine and histamine. Moreover, the synaptic cleft is the space that separates a neuron cell and its target cell. On the other hand, neurons transmit signals through electrical impulses. Electrical impulses travel long distances in the body carried by axons of the nerves. Thus, nerve impulses connect the brain and spinal cord and they carry signals to different parts of the body.

5 0
2 years ago
"if left untreated, hypertension can lead to ____."
katrin2010 [14]

If left untreated, the probable lead for hypertension to an individual is kidney failure. It is because the blood pressure is associated with the kidneys because the nephrons of the kidneys are being supplied with the blood vessels dense network and also because of the blood that flows through it, when there is a presence of hypertension and left untreated, it could cause the kidney to weaken or harden—causing kidney failure.

7 0
3 years ago
Explain how it is possible to have thousands of different protiens when there are only 20
solmaris [256]
This is possible because proteins are created from different combinations of amino-acids. While we only have 20 different kinds of aminoacids, these 20 kinds can create thousands of combinations that we can observe in our bodies and bodies of other mammals as well as other organisms. 
5 0
2 years ago
Hydrothermal vents are often rich in metals, such as copper, and also host dense populations of marine organisms. Which of the f
nydimaria [60]

The answer is copper. Nonrenewable resources are those that cannot be readily/naturally replaced at rates that match those of consumption (an aspect that allow renewable resources to be sustainable). Copper are made deep in earth at very slow rates hence do not readily renew themselves. Organisms, on the other hand die, and are naturally replaced by offspring.

4 0
3 years ago
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