Answer:
6) 1. Crossing over: crossing over can mean any number of things. It could mean transforming, like making a change, or something as silly as crossing a bridge. In biological terms, it means transforming onto another stage, like a caterpillar making a chrysalis so it can cross over ino the final stage of its life: a beautiflul butterfly.
2. Its during the S phase when the chromosomes are replicated also they significant cell growth occurs.
7) 1. The parent cell in mitosis starts out as a diploid cell and it splits into two haploid daughter cells.
2. diploid spores that undergo meiosis.
8) I don’t know
9) 1. Sex cells have half a set of chromosomes, 23, while parent cells have 46.
Explanation: that all the answer there but for number 8 it look like the same question but uh..., hope this help
Answer:
A. Nerve signals from the brain are controlling the arm.
Explanation:
Bec ause it starts at the brain and to the arm/hand!.
Answer: emulsification of fats to tiny globules for easy digestion and absorbtion in the villii.
It excretes bilirubin.
It neutralizes acidic Chyme.
It enters at the duodenum to act on Chyle.
Explanation:
Questions? What needs to be answered
Explanation:
Starting off, the conditions required for a seed to germinate are:
- warm temperatures, so that enzymes can act efficiently.
- water, for chemical reactions to place.
- oxygen, for respiration.
<u>Observations</u>:
Dry cotton wool: Seeds placed here will not germinate. They will not show any changes since not all the the conditions are met. (There's no water)
Wet cotton wool: Seeds placed here will germinate since all the conditions required for germinations to take place are met.
Covered with water: The seeds will gradually start to expand. The oxygen which is dissolved in water does not enter the seed due to excess water thus preventing germination.
