The answer that is a sessile is D a sponge
Answer:Many bacteria and fungi are important in the environment because they return energy to the environment
Explanation:
Answer:
In eukaryotes, nucleosomes play major roles in chromatin organization and gene expression
Explanation:
In eukaryotic organisms, chromosomal DNA is packaged with the help of proteins called 'histones' to form chromatin. The nucleosomes represent the basic packing units of the chromatin. Each nucleosome is composed of a histone octamer containing each two histones H2A, H2B, H3 and H4 wrapped around by 147 bp of DNA. Nucleosomes act as scaffolds to form higher-order chromatin structures (i.e., 30-nm chromatin fibers and condensed chromosomes). Moreover, nucleosome histone proteins can be chemically modified at defined amino acid residues, and thus nucleosomes also provide an epigenetic layer of information that can promote or inhibit gene expression.
1. Biologists, just like astronomers examine past data to determine what was and what is likely to be, they both look back in time. Biologists study fossil records, and astronomers use the telescope to study galaxies.
2. Both biologists and astronomers seek to understand and appreciate life, for the biologist here on earth, and for astronomers in space.
3. There is uncertainty on both sides about the future evolution of the universe. What guides them is the past, and none is sure of the future evolution.