Chromosome is the answer.
Sea urchin embryo requires temperature of 23 degrees to cleave, in lower temperatures the embryo cleavage slows down.
Explanation:
Although the sea urchins live in sea water in cold temperature, they require a temperature of around 23 degrees to cleave for fertilisation if this temperature is reduced the process of cleavage slows down eventually depleting the urchin population.
Answer:
Liquid media are a type of culture media used to cultivate and maintain microorganisms. They are also referred to as culture broths. Liquid media are not supplemented with a solidifying agent. Hence, these media remain as liquids even at room temperature.
Explanation:
i dunno lol i think its uuuuuuh. um. uh. i. uhhh. hmmm. i dunno 18 kappa
Answer is number 1
Oxygen O2
Ozone O3