answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
masya89 [10]
2 years ago
5

The blood-brain barrier is effective against ________.

Biology
1 answer:
harkovskaia [24]2 years ago
8 0
The blood-brain barrier is effective against the brain itself mostly because it, like a cell membrane, Controls what nutrients and other things that go into and out of the brain.
You might be interested in
An interaction between two organisms in which one usually benefits is known as <br> .
oksano4ka [1.4K]

Answer:

The interaction between two organisms in which one usually benefits is called commensalism.

Explanation:

hope it helps :)

8 0
2 years ago
3. Two black rabbits thought to be homozygous for coat colour were mated and produced a litter that contained all black babies.
Firdavs [7]

Answer:

Cross each to a rabbit who you know is homozygous - i.e. a white rabbit. If there are any white offspring you know this is the heterozygote.

Explanation:

Heterozygous individuals are those with 2 different alleles of a gene. Homozygous individuals have have 2 alleles that are the same.

Imagine the allele for coat color is B black, or b white. If you cross 2 individuals who are homozygous for the black gene (BB), they would only produce black rabbits in the F1 (BB). If you cross the F1, they could only produce BB rabbits in the F2.

However, if you cross a heterozygous rabbit with a homozygous black rabbit (Bb x BB), you would get either BB or Bb rabbits in the F1. However, intercrossing them could produce BB, Bb, or bb rabbits. Therefore, white rabbits can be produced.

You know that white rabbits are bb. So if you are unsure about the genotype of the black rabbit, you can cross it with a white rabbit (either BB x bb or Bb x bb). If any white rabbits appear in the F1, you know there must be a b allele in the black rabbit genotype, so that rabbit must be heterozygous.

5 0
2 years ago
Why do young plants taste sweeter than older plants?
sashaice [31]
Because they are ripe they havent gotten their natural flavor
3 0
2 years ago
An undersupply of the major inhibitory neurotransmitter known as ________ is linked to seizures.
bazaltina [42]

Answer:

Gamma-aminobutyric acid (GABA)

Explanation:

Epileptic seizures are induced by a preponderance of electrical activity within the network of neurons in the brain. Synapsis is the meeting point between the axon of one neuron and the dendrite of another neuron. Electrical signals don't cross through the synapsis, instead, they are conveyed in a chemical form by neurotransmitters.

The neurotransmitters convey messages across the synapsis in a chemical form until they find to the receptor of the dendrite of the receiving neuron. Neurotransmitters can either be excitatory or inhibitory in function i.e. the receiving neuron can either be stimulated to action or inhibited from action. The main excitatory and inhibitory neurotransmitters in the brain are Glutamate and Gamma-aminobutyric acid (GABA) respectively.

There must be a balance between excitation and inhibition of neurons, in order to ascertain the optimal functioning of the brain. Too much Glutamate or too little of GABA can make neurons hyperexcitable and hyperexcitability of neurons makes the brain susceptible to seizures.

8 0
2 years ago
Which cell structures are seen in all cell types? Check all that apply.
Travka [436]
Ribosomes, cytoplasm, cell membrane
8 0
2 years ago
Read 2 more answers
Other questions:
  • Which of the following statements about C4 carbon fixation is not true?
    11·2 answers
  • If you examine a rock sample and observe fossils in it, what type of rock does the sample represent?
    7·2 answers
  • Discuss THREE properties of water. Explain each of the following in terms of the properties of water. You are not limited to the
    13·2 answers
  • Not all plants have seeds. what advantage do seeds provide a plant? not all plants have seeds. what advantage do seeds provide a
    13·1 answer
  • List two sources within a medical record where the information about present or recent illnesses is most likely to be found.
    8·1 answer
  • Drag the below phrases, which relate to photosynthesis, to the reaction category to which they best fit. each label can be used
    6·1 answer
  • Caffeine is an inhibitor of phosphodiesterase. Therefore, the cells of a person who has recently consumed coffee would have incr
    11·1 answer
  • What is the relationship between CO2 and O2 for urchins?
    13·1 answer
  • Is DNP and cyanide an inhibitor of cellular respiration?
    14·1 answer
  • How many TOTAL atoms are in this compound?<br><br> H2C3O4N5
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!