I think the hydra lacks the specialized cells for touch and chemical detection. On the other hand earthworms have touch, light, vibration and chemical receptors along the entire body surface. Both of them are invertebrates (those animals without a backbone), they include insects, worms, jelly fish, spiders among other animals.
because the doctor might not have studied her enough to diagnosed her
Answer:
b. thick wall.
Explanation:
Endospore is a structure formed by some bacteria, that help them survive unfavourable conditions (e.g. lack of nutrients). This survival strategy of some bacteria (usually Gram+ bacteria) help them stay dormant for a while, until stressful conditions stop. A thick wall composed of many layers (exosporium, spore coat, spore cortex, core wall) of the endospore is what provides resistance to different stressful chemical and physical factors such as UV radiation, temperature, chemical damage etc.
1. molecul of DNA 2. dna packed (coild) around histon h1 3.second stage of dna packing -solenoid thread 4. third stage of packing-chromosomal thread 5.chromosome-chromosomal threads are packed inside
Red blood cells plus 10% salt solution is a suspension when viewed under the microscope <span>contain red blood cells that would appear wrinkled and reduced in volume.
Red blood cells are abbreviated as RBCs, the other name which is also used for these is </span>erythrocytes.Red blood cells are considered as the most common type of blood cell and they also remove carbon dioxide from the body and transport it to the lungs so that we can exhale.
