Answer:
B, producers make glucose and oxygen for consumers to use during cellular respiration.
Explanation:
Producers 'produce' for consumers; producers being plants and consumers being animals. Producers turn carbon dioxide into oxygen, so we know A and D are wrong. And producers don't require oxygen, only carbon dioxide, so we know C is wrong too.
Answer:
Erwin chargaff
Explanation:
Erwin chargaff discovered that DNA can unravel A.K.A "unzip"
Answer:
What animal phylum do leeches belong in?
Explanation:
Leeches are segmented parasitic or predatory worms that belong to the phylum Annelida and comprise the subclass Hirudinea. They are closely related to the oligochaetes, which include the earthworm, and like them have soft, muscular, segmented bodies that can lengthen and contract.
Gravity acting on the edges of plates and the friction between the plate and the asthenosphere
Answer:
No, CREs usually don't account for differences in gene expression levels.
Explanation:
<em>Cis</em>-regulatory elements (CREs) are non-coding DNA regions that regulate adjacent gene <em>transcription</em>. They usually do it by binding to transcription factors. They are in charge of influencing the rate of which transcription occurs, and less with how much a gene is expressed. On the other hand, trans-regulatory elements are DNA sequences that encode for upstream regulators that can modify or regulate <em>gene expression levels</em>.
Therefore, cis elements are not really in charge of expression levels, mostly transcription rates of single genes, rather. Trans elements are more involved in expression levels.
