Answer:
C. Muscles contract rapidly to produce heat on a cold day.
Explanation:
CORRECT
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.
Answer:
e.All of the above.
Explanation:
a) Nucleotide play important role in metabolic pathways and serve as energy carriers in the form of nucleoside triphosphate ATP and GTP.
b)Nucleotide being part of the structure of enzyme cofactor serve in supporting the chemical reactions.
c) nucleosides and nucleotides are building blocks for the genetic code and cellular energy currencies.
d) they are essential for the replication of genome( DNA synthesis), Nucleotide are also used in the PCR reactions for amplification and strand synthesis.
All ecosystems have a feeding hierarchy
Answer:
well animals have better feeling in tempeture
Explanation:
so basically if you have a fish in a bag in a hot tank and we cant feel it its because some things need to actually get hot enough or cold enough forus to feel the tempeture so basically animals have better feeling for the heat or the cold than humans