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ale4655 [162]
3 years ago
15

A tree of life depicting the hypothetical phylogeny of the three domains is shown above. A star is placed at the common ancestor

of all eukaryotes. Which characteristic would a common ancestor located at the star contain?
CHOICES: A- linear chromosomes with introns
B- circular chromosomes with introns
C- linear chromosomes lacking introns
D- circular chromosomes lacking introns
Biology
1 answer:
svlad2 [7]3 years ago
7 0

Answer:

A

Explanation:

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A virus takes over the _ _ of the host cell when it reproduces.
bonufazy [111]

Answer:

Cellular metabolism

Explanation:

A virus takes over the <u>cellular metabolism</u> of the host cell when it reproduces.

4 0
2 years ago
What is the collective name for the animals found in australia who carry their young in pouches?
bogdanovich [222]
The correct answer is marsupials.
<span>Marsupials are any members of the mammalian class Marsupialia and are endemic to Australasia and the Americas. The main characteristic common to these species is that most of the young are carried in a pouch because they give birth to relatively undeveloped young. Examples of marsupials include kangaroos, wallabies, koalas, possums, opossums, wombats, and Tasmanian devils. </span>
4 0
3 years ago
What would happen to a signaling pathway if phosphatases had reduced levels of function?
Crazy boy [7]
Phosphates and kinases work together so I’d phosphateses are reduced in function, their function in Signal transduction pathways would be reduced.
4 0
3 years ago
Give an example of spinal reflex and explain how the nervous system functions in this reflex action
Bad White [126]

The patellar reflex is the most common example or a spinal reflex. When the knee is tapped, the nerve that will receives this stimulus sends an impulse to the spinal cord and relay it to the motor nerve. This sources the quadriceps muscle at the front of the thigh to contract and twitch up the leg. This reflex contains simply two nerves and one synapse. The leg will start to twitch up on the other hand the brain is just suitable aware of the tap and comprehends the situation. <span>Subsequently the tap, the leg is routinely lengthy once and comes to rest. The nonappearance of this reflex is problematical and recognized as westphals sign this reflex might be lessened or absent in lower motor neuron lesions and during sleep. </span>

3 0
3 years ago
Fur seals and sea lions have similar body shapes and features. based on their anatomy, they seem to have a relatively recent com
arlik [135]
<span>Looking at the two species' DNA would be a good place to start. If there are a number of similarities in their genotypes, then there would be a good chance that the two would also share some type of a common ancestor. This would be evidence that there was some type of selection that took place that necessitated two different species that shared a number of traits and features.</span>
3 0
3 years ago
Read 2 more answers
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