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lina2011 [118]
3 years ago
6

Of the three layers of the heart wall, the layer that contains the cardiac muscle is the

Biology
1 answer:
Rina8888 [55]3 years ago
5 0
The <span>myocardium (the middle layer)</span>
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If the body plan of an animal is considered bilaterally symmetrical, ? A. The anterior and posterior ends are symmetrical B. The
zhannawk [14.2K]

Answer : The correct answer is - C) The left and right sides of the body are symmetrical.


Explanation -

Bilateral symmetry is a body plan of a life form, according to which the organism can be divided into two equal halves (right and left half) only when cut through central axis/midline of the body (also called saggital plane).

Example of bilaterally symmetrical organisms- insects like coackroach, butterfly.

Thus, option C) is the right answer.

4 0
3 years ago
Read 2 more answers
Under natural conditions, which of the following may cause allele frequencies to change? A. Limited resources, which could cause
jasenka [17]
The<span> answer is A. Limited resources will result in stiff competition among individuals in the population. This will result in differential survival across the population because only the individuals that are able to outcompete the others will be able to reproduce and pass their genes to the next generation. This, therefore, will change the allelic frequency of the <span>population.</span></span>




3 0
3 years ago
__________ forms a liquid cushion for cns structures. __________ forms a liquid cushion for cns structures. the pia mater cerebr
atroni [7]
Cerebrospinal Fluid

Produced by the choroid plexuses of the brain, the cerebral spinal fluid is contained in the subarachnoid cavity and spinal canal. It is reabsorbed by the arachnoid granulations.
Besides acting as a cushion for the CNS, the cerebral spinal fluid plays a critical part in the immunology of the central nervous system, blood flow in the CNS and autoregulation.

6 0
3 years ago
Gomez found the masses of three rocks for science project .the first rock had a mess of 19.28 grams, the second rock had a mass
ziro4ka [17]
The combined mass of rock 1 and 2 = 19.28 + 25.3
= 44.58

Difference between rock 3 and combined rocks 
= 46.3 - 44.58
= 1.72 grams

therefore, the third rock was 1.72 grams greater than the combined mass of the other two rocks. 
3 0
3 years ago
Suppose a storm produced precipitation in the form of ice particles. What type of precipitation would this be? Why?
maxonik [38]

Answer:

Hail.

Precipitation is also known as rainfall and it is important as a way of balancing and regulating the earths atmospheric conditions. Precipitation could involve rainfall, snow or hail.

Hail is usually accompanied by a storm which produces precipitation in the form of ice particles. This happens when the dew point is below freezing which results in the formation of ice crystals.

7 0
3 years ago
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