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Karolina [17]
3 years ago
13

Which process allows ions to move across a semipermeable membrane from

Biology
1 answer:
Vinil7 [7]3 years ago
5 0

Answer:

Active transport

Explanation:

a p e x

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PLS HELP!!! BRAINLIEST TO FIRST RIGHT ANSWER
lys-0071 [83]

The right option is; B) the total variety of organisms on Earth

The total variety of organisms on Earth explains biodiversity

Biodiversity is the variety and variability of all species (different plants, animals and microorganisms) from all sources (marine, terrestrial and other aquatic ecosystem) on earth or within a particular region. Biodiversity involves genetic diversity, species diversity and ecosystem diversity which all functions together to form the complexity of life on earth.


4 0
3 years ago
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Which dating method determines a fossil’s age by comparing it to other fossils?
Blababa [14]

Answer:

B. Relative Dating

Explanation:

Relative dating is when you look at fossils from around the same area or the same estimated time .

4 0
3 years ago
Nina studies an artificial heart model. The model has tubes that supply an electric current to the model. Nina switches on the c
just olya [345]
<span>Answer
1. electrical signal travels toward the heart
2. signal by the nodes in the atrium</span>
3. the atria contract<span>
</span>4. signal received by the atrioventricular node
5. signal transferred to the ventricles
6. the ventricles contract

Heart has a pacemaker that will continually send a signal. The primary site of the pacemaker is at the sinoatrial node, on the top right atrium. This node will send a signal to atria (which will cause it to contract) and to the atrioventricular node.
Atrioventricular node located between atrium and ventricle. It will send the signal to the ventricle(by the bundle of his) and cause it to contract.
5 0
2 years ago
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What is the main difference between the central nervous system (CNS) and the peripheral nervous system (PNS)?
navik [9.2K]
The Central Nervous System<span> (CNS) includes all of the nerves of the Brain and Spinal Cord.</span>
<span>
The Peripheral Nervous System (PNS) includes all of the nerves both sensory and motor connecting the CNS to the muscles, organs, and sensory structures of the body.</span>
6 0
3 years ago
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Choose all the answers and apply which of the following on ways to reduce wind erosion
wariber [46]
<h2>Answer:</h2>

The correct options are A,D and E which are plant trees, irrigate dry field and remove dead leaves respectively.

<h3>Explanation:</h3>
  • Wind erosion is the creation of big dust storm by small air rolls containing small particles like tillage and small dust particles.
  • Plant trees stops the formation of the small air rolls y providing physical resistance.
  • Remove dead leaves stops the tillage to contribute in dust storm.
  • Irrigate dry field decreases dust in air.
4 0
3 years ago
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