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motikmotik
2 years ago
13

Enter the correct 4 digit code (no spaces)

Biology
2 answers:
Paha777 [63]2 years ago
6 0
4312 —————///——//—-/——
luda_lava [24]2 years ago
3 0

Answer:1d2c3b4a

Explanation:

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The most important primary producers in marine ecosystems are _____. The most important primary producers in marine ecosystems a
Ket [755]

Answer: Diatoms.

Explanation:

Diatoms are single celled group of algae that are found in aquatic habitat both freshwater and marine habitat. The are the most important primary produce in the marine habitat. They are photosynthetic I .e they have chlorophyll which help them to trap light energy from sunlight and uses carbon dioxide and water to produce food. They produce food with the process of photosynthesis.

3 0
3 years ago
A person spends several days in a hot, dry desert environment with little water available to drink. Which statement BEST summari
motikmotik
It seems that you have missed the necessary options to answer this question, but anyway here is the answer. Since the person spends several days in a hot, dry desert environment with little water available to drink, the kidneys' function during this time is that, the amount of urine produced is decreased in order to maintain the proper amount of water in the bloodstream. Hope this answer helps.
3 0
3 years ago
Read 2 more answers
In recent molecular genetic studies, genes associated with the neurotransmitter __________ have been linked to adhd
Luda [366]

In recent molecular genetic studies, genes associated with the neurotransmitter Dopamine have been linked to ADHD.

ADHD stands for Attention Deficit Hyperactivity Disorder. People with ADHD have a hard time focusing on tasks. Scientists have found that the low levels of dopamine in the brain are associated with the symptoms of ADHD. It is because the neurons in the brain have a high amount of protein called the dopamine transporters. These proteins block the dopamine from passing between the neurons. This decreases the effect of dopamine.

4 0
3 years ago
What structure keeps harmful chemicals out of animal cells?
Charra [1.4K]

Cell membrane protects animals cells from harmful chemicals.

Explanation:

The cell membrane is a tough covering composed of the phospholipids and proteins and forms a bilayer around the cells. This acts as a semi-permeable membrane and controls the transport of ions, organic molecules and solutes to and from the cell through selective permeability.

The hydrophilic and hydrophobic properties and the corresponding polarity of the cell membrane and ionization status of the chemicals prevent the entry of harmful substances into the cell. The cell membrane functions as a barrier system and prevents the flow.

4 0
3 years ago
What receives blood from the head
Ahat [919]

Answer:

Right Atrium

Explanation:

ion really know but sounds like a

Right Atrium/Heart typo answer

6 0
3 years ago
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