Answer:
Basidiocarp
Explanation:
This is a multicellular structure found in mushroom that are visible to the naked eye and are spore producing. They are the structures of which spore producing basidia are formed. They called called false ruffles. The basidiocarps serve as the structure on which the hymenium is produced. They are the fruiting bodies of mushroom.
<span>One reflex reaction to maintaining homeostasis in the body is shivering. In response to cold temperatures, the muscular system moves our muscles quickly to warm them up as a rapid, short term solution for homeostasis. Another example is the withdrawal reflex, which occurs as a response to pain. Pain receptors activated by the painful stimulus activate the motor neurons in the body, which in turn contract muscles to move parts of your body away from the pain.</span>
The following are the statements that accurately demonstrate the electron transport chain:
1. The electron transfer in the electron transport chain is combined with the proton transfer from the matrix to the intermembrane space.
2. The prosthetic groups, like Fe-S centers, directly take part in the transfer of electrons.
3. The electron carriers in the electron transport chain comprise cytochrome C and ubiquinone (coenzyme Q).
4. The electron carriers are arranged into four complexes of prosthetic groups and proteins.
5. The reactions of the electron transport chain occur in the inner membrane of mitochondria.
Answer:
b. During replication there is both a leading strand and a lagging strand
.
c. Each replication bubble has two replication forks.
Explanation:
Eukaryotic chromosomes have multiple origins of replication to replicate the long chromosomes at a higher rate.
The two DNA strands have opposite polarity, that is, 5' end of the one DNA strand is present opposite to the 3' end of the other DNA strand. DNA replication occurs only in 5' to 3' direction and the direction of the movement of the replication fork is also 5' to 3' direction.
To allow the DNA replication in 5' to 3' direction on both strands, one strand is replicated discontinuously in the direction opposite to the movement of the replication fork.
The discontinuously replicated strand is lagging strand while the other one is the leading strand.
DNA replication in eukaryotes occurs bidirectionally as two replication forks are formed at each replication bubble, one at each end of the replication bubble.
The presence of multiple origins of replication and the bidirectional process allows the replication of large eukaryotic DNA at a considerable fast speed.
Answer;
A skull from genus Homo that dates from approximately 750,000 years ago is discovered. Then the foraman magnum is most likely be located at the bottom of the skull.
Explanation;
Foramen magnum is a large opening at the base of the skull through which the spinal cord exits the cranial vault. It is situated in the occipital bone, and forms around the base of the brainstem, separating the brain from the spinal cord. In apes and humans (members of genus homo) it is formed by the fusion of the four parts of the occipital. In human for example; it is anteriorly positioned, with its interior lying on the bitympanic line and is also inferiorly oriented.
