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frez [133]
3 years ago
8

Which group would be found on the lowest branch of a phylogenetic tree of all life?

Biology
1 answer:
nikklg [1K]3 years ago
6 0
I think the correct answer would be the second option. The group of archaebacteria would be found on the lowest branch of a phylogenetic tree of all life. Phylogenic trees are illustrations of a hypothetical evolution of the organisms and its relationship with the other organisms. From the listed options, the archaebacteria is most likely to be the most basic and simplest life form. It should be placed before the other options so at the lowest branch. This illustration is being used by scientists to describe how evolution and the connection of the organisms came about. It sometimes called as the tree of life.
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Which of the following ways are leftover neurotransmitters cleaned up if they
Alisiya [41]

Answer:

The correct answer is -

the neurotransmitters are broken down in the synapse

The presynaptic neuron absorbs the neurotransmitters

Explanation:

The termination of the neurotransmitters is essential as if they can cause harm by continuing the stimulus effect on the muscles or cells. To clean up these neurotransmitters there are two ways- Degradation of neurotransmitters with the help of enzymes in the synapses or synaptic cleft and the presynaptic neurons absorbs or suck up neurotransmitters. The neuron (presynaptic neuron) is that releases the neurotransmitter like dopamine, serotonin, is the one that re-uptake it.

This reuptake is done by transporter proteins that are are symporters in nature as these proteins pump neurotransmitters as well as ions back into the neuron.

5 0
3 years ago
Which organisms have the fewest similarities? Explain why these organisms still qualify as living things despite sharing few cha
VladimirAG [237]

Plants have the fewest similarities with the other two groups of organisms.

<h3>Plants vs animals</h3>

Plants generally comprise all living organisms that have chlorophyll and are able to manufacture their own foods by photosynthesis.

Animals, on the other hand, are living organisms that cannot manufacture their foods and are mobile. Animals are either vertebrates or invertebrates.

Plants qualify as living organisms because they are able to feed, excrete, reproduce, grow, respond to stimuli, die, and carry out other basic characteristics of living organisms.

More on plants and animals can be found here: brainly.com/question/5018082

#SPJ1

6 0
1 year ago
a mother that carries the colorblind allele and a father with normal vision can have children that are only a) normal boys and n
erma4kov [3.2K]
If the father had the gene BB (purebred & not carrying colourblind allele), then the answer will be a). All of their children will have normal vision with half of them carrying the colourblind allele.
If the father had the gene Bb (hydrid & carrying colourblind allele), then the answer will be d). 3/4 of their children would have normal vision whilst the last quarter would have colourblind males. This is due to them having to receive one colourblind allele from their mother on the X chromosome & one colourblind allele from their father on the Y chromosome.

7 0
3 years ago
Read 2 more answers
At which point does the motion of convention currents occur to drive plate movement
OLEGan [10]

<u>Answer</u>: 2

The convection currents shown in points 1 and 3 transfer heat from the outer core (number 4) to the lithosphere. Here, the lower density hot magma breaks apart the plates at <em>point 2</em> creating a divergent plate boundary. <u>This new magma mass will drive a lateral movement of the plates</u>. The edges of the plates which have a higher density basalt rock will sink into the mantle and get consumed in trenches/subduction zones

7 0
3 years ago
Crossing over results in additional genetic variation during meiosis because it _____. Group of answer choices results in a grea
DIA [1.3K]

Answer:

allows the recombination of genetic information

Explanation:

Crossing over is a process that occurs only in meiotic division in sexually reproducing organisms. It is the process whereby the segments of a gene are exchanged between the non-sister chromatids of homologous chromosomes.

Due to this crossing over process that occurs in prophase I of meiosis, the alleles of a chromosomes are recombined to ensure genetic diversity. Hence, according to this question, crossing over results in additional genetic variation during meiosis because it allows the recombination of genetic information.

7 0
3 years ago
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