The correct answer is that both <span>both produce carbohydrates and water. Plants to do it in a process called photosynthesis, and they produce oxygen as well and sulfur bacteria do it in a </span>process called chemo-synthesis, and they produce sulfur apart from carbohydrates and water.
In humans, the yolk sac is the
site of origin for blood cells and primordial germ cells. The human yolk sac is
a membrane located outside the embryo and it is connected by a tube through the
umbilical opening to the embryo's midgut. The yolk sac serves as an early site
for the formation of blood and in time, is incorporated into the primitive gut
of the embryo.
B. DNA is short for <span>Deoxyribo nucleic acid, which is nucleic acid..
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Answer:
The correct answer is A) Histone deacetylation generally decreases gene expression.
Explanation:
Histones are the proteins that are responsible for the condensation of chromatin, which is directly linked to the capacity that a gene has to be expressed. The more condensed a gene is, the less expressible it becomes.
In order to regulate the gene expression, histones can suffer from many modifications that can change their conformation and the expressiveness of specific genes.
<u>Histone acetylation is linked with an increase of gene expression; while deacetylation and methylation decrease gene expression.</u>
Answer:
B) build wind-powered pumps to use groundwater