Answer:
The factors limiting the size of cells include: Surface area to volume ratio (surface area / volume) Nucleo-cytoplasmic ratio. Fragility of cell membrane.
Explanation:
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Answer:
B. The two species share many proteins in common, and the nucleotide sequences that code for these proteins are almost identical
Explanation:
When two different species have the similar structure, (trait, behavior) these traits can arise through either of two processes:
- The structure is from the common ancestor that gave rise to the two species and that structures are then known as homologous structures. The species with homologous structures are more closely related to each other.
- The structures could have developed independently as a result of convergent evolution (trait was not present in the ancestor), and those structures are then called analogous structures.
Answer:
The correct option is B. The offspring will inherit neither the genotype nor the phenotype change.
Explanation:
Any changes which occur in the DNA sequence of a person are termed as mutations.
Mutations will only be transferred to offsprings if the mutated gene or sequence gets incorporated into the genome of the mutated person.
In the above scenario, the mutation is just changing the person's phenotype and it has not been incorporated in the genotype of the affected person. Hence, the offsprings will not inherit the mutation, nether in their genotype nor the phenotype.
I would say the the mechanism of control and co-ordination in plants and animals is called the Hormonal Feedback Mechanism. Since hormones command many cell functions, they are very important for homeostasis. Hormones control many cell activities, so they are very important for homeostasis or the stable functioning of an organism. These hormones are managed by feedback mechanisms. Such a mechanism feeds back to control its own production. It does this in a continuous loop.
Answer:
The Sacrum is
a group of five fused vertebrae that are not individually numbered, except for the first
