C) DNA has double chains, deoxyribose sugar, and thymine while RNA has a single chain, ribose sugar, and uracil.
The endocrine
system is the system that comprises all the glands in the body, from the hypothalamus
pituitary, pineal, thymus, thyroid, parathyroid, adrenal glands, testes and
ovaries. These organ glands mentioned are just the few major glands in the
body. Moreover, take note of the hypothalamus which is responsible for many
functions such as hunger, thirst and other simple urges, that also regulates
the pituitary gland. How does your endocrine conserve body water? By
controlling and regulating your water intake and outtake, ensuring the amount
of electrolytes is efficient. Your hypothalamus is responsible for water
balance hence, it participates in one of the many functions such as regulating
the sweat glands excretion of sweat which is by the process of osmosis promoting
skin-temperature homeostasis.
Answer:
Frogs have some important internal and external structures that helps them to survive, grow and reproduce. Frog have almost similar internal anatomy to humans.
Frogs have the ability to respire through both lungs and skin. Skin is the external structure that helps them to respire in aquatic ecology.The skins helps to dissolves oxygen from the air and water and releases carbon-dioxide. Skin helps frogs to respire under water but if water do not have enough oxygen, frogs will drown.
<em>An internal structure called liver is present in frog same as human beings. </em> The liver releases chemical called bile that are utilized in digestion of fat and then emptied into the small intestine.
Hence, skin and liver are important for the survival of frog.
<u>Answer</u>:
"phosphate, ribose, adenine" could be a DNA nucleotide
<u>Explanation</u>:
They are built up of the molecules known as nucleotide. Every nucleotide has a sugar group ,a nitrogen base and a phosphate group in it. For such type of nitrogen are present. The order of bases are determined by the genetic code or the instruction they are carrying with them. The DNA are generally found in the nucleus present in the brain. It has the total control of the body. It also keeps a record of the genetic information.
A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another. a food chain consists of many interconnected food chains and are more realistic representation of consumption relationships in ecosystems.
