Answer:
The circulatory system is made up of your veins. They carry blood to your heart and away from it. The blood going through your body carries oxygen, nutrients, and hormones, and removes wastes like carbon dioxide.
Explanation:
Answer:
a prezygotic barrier
Explanation:
Both wild tigers and lions are said to be reproductively isolated.
Reproductive isolation is defined as the existence of barrier between organisms of different species such that they cannot reproduce.
The mechanisms of reproductive isolation varies. While some act to prevent the formation of zygotes (in case of mating) between organisms of different species, some ensures that the resulting zygotes are invalid.
Reproductive isolation mechanisms that act to prevent fertilization and formation of zygotes are referred to as prezygotic mechanisms while those that ensure that invalid zygotes result (in case of successful fertilization) are referred to post zygotic mechanisms.
<em>The natural differences in the ranges of wild tigers and lions ensure that both animals do not mate with each other, let alone results in zygote. This is a form of pre-zygotic reproductive isolation mechanism.</em>
Answer: C. polyp
Explanation: The polyp is a sac-like stage of a cnidarian, with the mouth and tentacles on top.
Answer:
Cellulose is considered as complex carbohydrates
Explanation:
It is beacause usually it is found outside of the plant and it is so hard and rigid so it is hard to digest. They are usually used in making colths.
Eukaryotic cells are cells that have all of the different kinds of organelles, like the nucleus. Also they at the cells that make up animals.
