Match the words to the definitions

Biology

2 answers:

dmitriy555 [2]2 years ago

6 0

Sexual Reproduction
Zygote
Fertilization
Chromosomes

adell [148]2 years ago

4 0

Sexual reproduction
Zygote
Fertilization
Chromosomes

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Which of the following is true concerning cancer cells?

Iteru [2.4K]

Answer:

a.They evade the normal controls that trigger programmed cell death.

Explanation:

Cancer cells are cells in the body that grow abnormal and uncontrollably. Continuous growth cancer cells results in the development of tumor as well as the ability to invade neighboring tissues.

Unlike normal cells that are controlled (reproduce only when needed) and are more specialized with specific functions, cancer cells are less specialized compared to normal cells and grow abnormally and rapidly. Cancers cells grow out of control, as they evade the normal control and ignore signals that activate apoptosis or programmed cell death which is used by the body system to destroy unwanted cells.

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3 years ago

What artery supplies the chin/jaw region of the head with blood?

Ede4ka [16]

The artery that supplies the chin and jaw region of the head with blood is the facial artery which is a branch of the external carotid artery. All blood from the head arises from the common carotid artery wherein it is divided to internal carotid artery (major blood supply of the brain along with the basilar artery on the posterior side) and external carotid artery (major blood supply of the head other than the brain).

The external carotid artery has 8 major branches (from inferior to superior): (1) superior thyroid artery, (2) ascending pharyngeal artery, (3) lingual artery, (4) facial artery, (5) occipital artery, (6) posterior auricular artery, (7) maxillary artery, and (6) superficial temporal artery.

Attached is a simplified photo of the branches of the external carotid artery.