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Ivan
2 years ago
5

4. Moss and liverwort are a type of plant with no vascular tissue (xylem or phloem). How might this limit the

Biology
1 answer:
Rina8888 [55]2 years ago
8 0

Answer:

Mosses and liverworts are lumped together as bryophytes, plants lacking true vascular tissues, and sharing a number of other primitive traits.

Their flagellated sperm must swim through water to reach the egg. So mosses and liverworts are restricted to moist habitats.

Explanation:

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4 0
3 years ago
Read 2 more answers
Like all cells, the neurons' internal organization dictates its function. Neurons have relatively many mitochondria, an extensiv
4vir4ik [10]

Answer:

Neurons have stable, relatively unchanging internal environments.

Explanation:

Neurons or nerve cells is the structural and functional unit of the nervous system. Neurons consists of the dendrites, axon, cell body and different cell organelles.

The neurons have mitochondria that meets the high ATP requirement and and consume more oxygen. The network of rough endoplasmic reticulum and ribosomes produce large number of proteins in neuron. The internal environment is never stable and gets changed as the nerve impulse transmission occur through the neuron. The membrane potential of the neuron gets changed and changes its internal environment.

Thus, the correct answer is option (B).

5 0
3 years ago
Please help me I don’t understand it.
Irina18 [472]

Answer:

1) bay - 0%

  cream - 0%

  buckskin - 100%

2) cream - 25%

    bay - 25%

   buckskin - 50%

3) co-dominance

Explanation:

Ok so a run down on Punnett Squares,  all you have to do is put the parent's genes on the top and right hand side and combine those two genes in the middle as I did in the picture.  Now, co-dominance, this basically means that there is no dominant allele.  For example, imagine a white flower (W) and a red flower (R).  If these two plants were to breed, you would get a pink flower (WR).  This means the red allele and the white allele are both co-dominant.  It is basically a combination of both genes that result in a mixed phenotype of the two genes, aka red and white makes pink.  This is also how you get an AB blood type.

I hope this helps!

6 0
3 years ago
Sadie's continued use of marijuana will lead to her brain's reduction of the neurotransmitter _____, which will require her to n
NARA [144]

Answer:

Sadie's continue use of marijuana will lead to her brain's reduction of the neurotransmitter anandamide which will require her to need more of the marijuana to achieve its effects.

Explanation:

The active ingredient of marijuana is tetrahydrocannabinol (THC)which is responsible for causing change in the brain.

This activates specific receptors called cannabinoid receptor.This receptors are found in limbic and cerebral cortex region and cerebellum.

As these receptors are located in the brain, the effect of these receptors are also wide spread.In healthy brain, these receptors are activated by a neurotransmitter called as anandamide that have pain relieving effect and also play important function in brain.When THC activates these receptors,causes interference of the normal function.

marijuana also boost another type of neurotransmitter called dopamine after taking the drug.

4 0
3 years ago
Secondary sex characteristics are traits that
Trava [24]

Answer:

Occur later in development

8 0
3 years ago
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