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Romashka [77]
3 years ago
10

choose the term that best completes the sentence: Absolute dating allows a scientist to determine the.. A: exact age of a sample

B: the age range of a rock and fossil samples C: the age of a sample in relation yo othet samples in the area D: the age range of only rock samples
Biology
1 answer:
monitta3 years ago
7 0
I think the answer would be a.
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Answer:

question 1.) D

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question 3.) B

Explanation:

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The above picture represents the different stages a cell goes through in its "ufetime Each phase is characterized by specific ev
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The arteries that branch from the aorta and provide blood to the heart muscle itself are _______________ arteries. a. pulmonary
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C. its the Coronary Arteries
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Consider the phylogeny below. The coelom evolved once in the common ancestor of protostomes and deuterostomes. What does the phy
VikaD [51]

Answer:

Flat worms belong to Phylum- Platyhelminthes as they have flat body because they don't have any coelom in their body or called acoelomate

Explanation:

Coelom is called as the true body cavity that is found in Porifera and Cnidaria but when it comes to platyhelminthes, the coelom is not found and thus they have flat like structure and they are categorized under first triploblastic  animals that is they contain 3 tissue layer which are found in higher animals (Ectoderm, Mesoderm and endoderm) also cephalization takes place in this parasitic group which indicates evolution towards higher, complex organisms.

7 0
3 years ago
The frontal lobes also include the primary ____________ which controls voluntary motor functions.
lakkis [162]

Answer:

The correct answer will be- primary motor cortex

Explanation:

The motor cortex is the portion of the brain present in the precentral gyrus of the frontal lobe of the brain.  The motor cortex is thought to be involved in the planning actions and control voluntary actions.

The motor cortex is divided into three regions: premotor cortex, primary motor cortex  and supplementary motor area.

The primary motor cortex is the region of the motor cortex which controls the voluntary movements in the human body by generating the impulse.

Thus, the primary motor cortex is the correct answer.

5 0
3 years ago
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