Definitely not the first or last but I’m pretty sure it’s the third. I’m sorry if wrong. I’m like 85% sure it’s right
A food wed is about who eat who like for example I think the human are on the top of the food chain because no one eat him
Dehydration because animals can only live so long with water
Answer:
d. Estrogen will bind to a receptor protein that enters the nucleus and activates specific genes.
Explanation:
Estrogens are small lipophilic molecules synthesized from cholesterol. This steroid hormone (estrogen) is able to directly enter into the cell nucleus to bind with their corresponding receptors. Subsequently, estrogen-receptor binding stimulates these receptors to form dimeric structures that bind to DNA and thus activate gene expression. Estrogen receptors interact with DNA and activate gene expression through zinc finger domains composed of four (4) cysteine residues surrounding a zinc atom.
D. brown recluse and black widow
