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9966 [12]
3 years ago
7

Which protective covering of the brain provides passageways for cerebrospinal fluid (csf) to drain into the superior sagittal si

nus?
Biology
1 answer:
IceJOKER [234]3 years ago
7 0

The protective covering of the brain that provides passageways for cerebrospinal fluid (CSF) to drain into the superior sagittal sinus is called the arachnoid mater.

 

To add, the arachnoid mater is the middle of three layers that make up the meninges, or membranes, that surround the spinal cord and brain.

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The dog family is Canidae. Some well-known members of the dog family are the domestic dog, Canis familiaris; the coyote, Canis l
Bumek [7]

Answer:

The correct answer is "The common ancestor of coyotes and domestic dogs is more recent than the common ancestor of red foxes and domestic dogs".

Explanation:

One of the fastest way to known if two species have recent common ancestors is to look if they have common taxonomic ranks. In this case we can conclude that The common ancestor of coyotes and domestic dogs is more recent than the common ancestor of red foxes and domestic dogs, because the coyotes (Canis latrans) and the domestic dogs (Canis familiaris) share the same genus (Canis). The common ancestor of foxes and domestic dogs is more ancient because red foxes (Vulpes fulva) do not share the same genus has domestic dogs (Canis familiaris).

3 0
3 years ago
Which structure connects the knee joint at both sides and prevents its dislocation?
Readme [11.4K]

Collateral ligaments are <span>two strap-like ligaments that act to stabilize the hinge motion of the knee, preventing any lateral or medial movement. It is the structure that connects the knee joint at both sides and prevents its dislocation. There are two types: Tibial (medial) collateral ligament and Fibular (lateral) collateral ligament.</span>

3 0
3 years ago
A scientist is using relative dating to determine the age of a fossil that she discovered. What would allow her to draw the best
xenn [34]

answer:

: D.finding fossils in the same area that are in layers closer to the surface.

Relative dating refers to the age estimation method in which past events are determined, to compare the age of object, organism, strata or rock with the age of other similar entity. This method gives an approximate or estimated age, it does not provide absolute age.  

The older fossils are found in deeper layers of the strata as compared to younger fossils. This represents the geological time and life span of primitive or preexisting organisms. Therefore, according to the given situation, finding fossils in the same area that are in layers closer to the surface is the best conclusion

8 0
3 years ago
Read 2 more answers
Which characteristic do vertebrates have that invertebrates lack?
yarga [219]

Answer:

B. Backbone

I hope this helps!

7 0
3 years ago
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At which level of classification are bears and lions different
omeli [17]

Answer: Bears are classified as caniforms, or doglike carnivorans, The lion is a species in the family Felidae

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3 years ago
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