Answer:
I am writing this in response to a letter regarding evolution. Evolution is increasingly solid, not shaky. Darwin’s “theory” or explanation was a way of understanding what he had discovered (which did not include genes, chromosomes, DNA or nucleotide bases). Our explanations now include genetics and the commonality of mutation.
Proofs are solid, not in question by serious scientists. Direct observation is one, which we see in the fact that this year’s flu evolved a little too far from last year’s, so flu shots are less effective this year than we would like them to be.
Fossils tell the story well: whales with legs, dinosaurs with feathers and Tiktaalik. The latter was found in the Canadian north and is part fish, part amphibian, before there were ever any amphibians. Imperfection is a good proof: think of your useless appendix, the very bad design of your ankles, knees, and back (talk to a chiropractor about that). You have big toes because they used to be useful thumbs for your grasping feet.
Many other animals and even plants similarly have flaws that show their evolutionary past. Two large human chromosomes reflect the coming together of two chimpanzee chromosomes each.
Hope it helps,
Please mark me as the brainliest
Thank you
Answer:
Plant cells have a cell wall, a large central vacuole, and chloroplasts, but a animal cell does not have those things.
Nucleus; contains DNA
Lysosome; breaks down nutrients and wastes
Vacuole; storage
Centrosome; has a role in Mitosis to seperate chromosomes
Chloroplast; photosynthesis
Endoplastic Reticulum; transport nutrients within the cell
Ribosome; protein synthesis
Mitochondria; breaks down glucose into ATP energy
Cell wall; a rigid membrane found in plants and some bacteria
Golgi apparatus; packages proteins made, exocytosis
Cell membrane; a flexible mebrane around eukaryotic cells
Hope this helped
Brainliest please; i need it to reach the next rank
Explanation:
Answer:
Determine the proportion of offspring phenotypes that would result when two merle dogs mate, if one dog is true-breeding for the long-coat trait and the other dog is true-breeding for the short-coat trait.
LL x ll= Ll, Ll, Ll and Ll
The phenotype of the mating between two mertie dogs with true long-coat trait and true short-coat trait is heterozygous long-coat dogs will be produced all through
4:0
Explanation:
Answer:
The strong hydrogen bonds in water made water stable and difficult to breakdown into constituent oxygen and hydrogen atoms. at a temprature less than 100 degree..
Oxygen is a strong electronegative atom than the two hydrogen atoms it is attached to in water. It pulls more electrons to itself than the hydrogen atoms.. This strengthened hydrogen bonds in water .
Consequently, it will be difficult for the needed oxygen atoms to simply diffuse into the alveoli to reach the blood,Compare to its molecular form where its atoms awere held by relatively week covalent bonds.
Besides the porosity of the thin alveolar endothelial walls of 0.2 micrometer is too small for the larger water molecules to pass through.
Explanation:
Answer:
1 and 4
Explanation:
Streptobacilli are linked together in chains, the bacterium is gram positive and the generally rod-shape. The genus could be aerobic ( required oxygen for their growth), falcultative anaerobe (in the absence of oxygen, they can switch to fermentation).
