Answer:
D) An original parent DNA strand and one newly synthesized DNA strand comprising a new DNA molecule.
Explanation:
- Semi-conservative replication refers to two strands of DNA unzip, and a new strand is assembled onto each 'conserved' strand.
- The replicated double helix consists of one old strand and one newly synthesised strand.
- It describes the structure of DNA, a twisted helix of two strands with bases joining the strands.
Answer: To tell how the environment was years ago and what kind of animals were able to live there. Hope this helps.
Explanation:
Answer: Hormone
Explanation:
A hormone is a chemical substance produced in small quantities by an endocrine gland (such as thyroid gland in the neck) and carried in the blood to another tissue in the body where it acts as a messenger to control itsfunction.
Examples of hormones include:
- Thyroxine produced by the thyroid gland in the neck
- Testosterone produced by the testis in male humans
- Oestrogen produced by the ovary in female humans
The extension of the forebrain that receives odor input from the nose is the olfactory bulb.
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<span>a. Germinated seeds are haploid.</span><span>
A gymnosperm is a woody tree like a fir tree. It does not bear flowers or fruit. Its seeds are naked, as they are not covered by a fruit wall and are arranged in a cone-like structure. </span>
