Answer: cellular respiration reverses the overall photosynthetic reaction, but less efficiently. The useful energy output of respiration is less than the energy input required for photosynthesis.
Explanation:
overall photosynthetic reaction
Light energy + 6CO2 + 6H2O —> C6H12O6 + 6O2
cellular respiration
C6H12O6 + 6O2 —> 6CO2 + 6H2O + energy (as ATP and heat)
The process of sexual reproduction involves two parents, each contributing one gamete. Gametes are produced
by a process called meiosis, which starts by the duplication of the
chromosomes, followed by two rounds of cell divisions and halving of the
chromosome number. Gametes have half the chromosome number of other
adult
cells of an organism.
A key feature of meiosis is the exchange of chromosome pieces which occurs in the first division of this process, called recombination or
crossing over. Recombination is a very important source of genetic
variation between individuals of sexually reproducing species, and the
driving force for the process of natural selection.
No, hyperventilating will not increase oxygen delivery to the muscle due to decreased concentration of Carbon dioxide in blood..
Explanation:
The reduction of carbon dioxide in the blood will change destabilize tense state of the hemoglobin into relaxed state.
As a result, the p50 value of hemoglobin reduces and the release of oxygen from hemoglobin is hindered.
Thus the oxygen delivery to the muscles will not be increased.
Answer:
The procedure by which the developing cartilage systematically gets substituted by the bone to produce the growing skeleton is termed as endochondral ossification. The columns of chondrocytes are after that get invaded by the metaphyseal blood vessels, and on the residual columns of the calcified cartilage the formation of bone takes place.
The following are the essential steps in the procedure of endochondral ossification:
1. The chondrocytes get enlarged and the enveloping matrix starts to calcify.
2. The enlarged chondrocytes die.
3. The growth of the blood vessels takes place surrounding the edges of the cartilage.
4. The perichondrial cells turn into osteoblasts and generate a superficial bone layer.
5. The osteoblasts substitute the calcified cartilage with the spongy bone.
Answer:
Organisms which are better suited to their environment will reproduce more and so increase the proportion of the population with their traits. ... Organisms (or genes or replicators) don't survive because they are fit; rather, they are considered fit because they survived.