Anaphase 1 -- a homologous pair is being pulled apart by spindle fibers.
Anaphase 2 -- the spindle fibers attaches to the centromere and pulls 2 pieces of the same chromosome apart.
The difference is significant because the chromosomes are aligned in different directions.
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-- scdssn
Answer:
- Only some molecules move from a higher concentration to a lower concentration.
Explanation:
Selective permeability of the membrane means that membrane regulates which molecules (ions, substances) and how much of them can pass through it. Permeabilty of the membrane is determinated by its structure (hydrophobic heads and hydrophilic tails, cholesterol), temperature
The simplest form of transport through membrane is diffusion, passive transport of the molecule down its concentration gradient 9from higher to lower concentration). Some molecules can move down their concentration gradients directly, some have to pass through membrane proteins in a process called facilitated diffusion while others require energy and use active transport.
Answer:
Diet includes three materials such as lipids, protein and carbohydrates. Lipids are chemically digested by bile.
Proteins are chemically digested by duodenum.
Carbohydrates are chemically digested by Amylase in the mouth.
Lipids are converted into fatty acid, proteins are converted into amino acid and carbohydrates are converted into glucose.
Vitamins absorption of digestion food across villi and micro villi takes place.
Sexual reproduction in flowering plants involves the production of male and female gametes, the transfer of the male gametes to the female ovules in a process called pollination. After pollination occurs, fertilization happens and the ovules grow into seeds within a fruit.
Answer:
D
Explanation:
Hydroxide ions make solutions more basic by decreasing its acidity (this is accomplished by reacting with H+)
