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Bad White [126]
2 years ago
10

Snakes, dogs, and humans have a vertebral column. Snakes and dogs have tails, and humans have vestigial tailbones. Dogs and huma

ns have limbs, but snakes do not. Most reptiles lay eggs, but a few give birth to live young. What do these structures suggest about the evolutionary pattern between the three organisms?
a) Snakes and dogs are more closely related than snakes and humans.
b) Snakes and humans are more closely related than humans and dogs.
c) Dogs and humans are more closely related than snakes and humans.
d) Dogs, snakes, and humans share a common ancestor.
e) The early ancestor of snakes and dogs is the same, and the early ancestor of humans is different.
Biology
1 answer:
omeli [17]2 years ago
5 0

Answer:

its definitely c because the past ancestors of ours never layed eggs nor did dogs, plus we were never reptiles and lastly, dogs and humans are both mamals and give live birth so their more related than snakes and humans. hope this helped.

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Answer:

reduction in potential medicines

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Explanation:

The direct consequences of a decrease in angiosperm's biodiversity is a reduction in potential medicines and food supply.

Angiosperm biodiversity (the flowering plants) act as a source of food to several living organisms, including human. This is evident in the practice of farming by humans. Different categories of consumers in the ecosystem depends largely on flowering plants for their food either directly or indirectly.

They also serve as a source of medicine. For example, chloroquine which use to be the major drug against the treatment of malaria was extracted from a flowering plant known as <em>Chinchona pubescens.</em>

<em>Several species of flowering plants remains in the wild whose usefulness are yet to be researched. They represent a source of future food and medicine for man and animals.</em>

<em>Hence, if the diversity of flowering plants is reduced, it is going to have direct consequence of reduction in potential foods and medicine.</em>

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zalisa [80]

Answer: Oxygen: Passive transport

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Explanation:

Hope this helps :)

7 0
1 year ago
The half-life of protactinium-226 is 2 minutes if you started with 20 grams of pa-226 how much do you have after 8 minutes
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Which of the following best describes the mechanism by which steroid hormones control gene expression? View Available Hint(s) Wh
Veseljchak [2.6K]

Answer:

Steroid hormones that enter the cell activate receptors. These hormone-receptor complexes then bind HREs and influence gene expression.

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6 0
2 years ago
Read 2 more answers
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