Answer:
See explain
Explanation:
I gotchu. First, let's just remove A from the beaker and feed it to a rat. If he lives, the poison is A, if not it's still in one of the 3. Now, remove B and feed to a rat. If he dies, it's not B or A . . . so on until you have your answer.
Answer:
An organism that eats another organism is called a consumer.
Explanation:
In food webs, consumers are characterized by not being able to produce their own nutrients, having to acquire them from the consumption of other living beings.
Consumers are found from the second level of the food web and can be primary consumers, or herbivores, and secondary, tertiary or even quaternary consumers, who are carnivores.
The other options are not correct, due to:
<em> a. Vertebrate
: which has an internal skeleton, of a bony or cartilaginous nature.</em>
<em> c. Invertebrate: lack of internal skeleton and spine
</em>
<em> d. Embryo: is the product of fertilization, whose development occurs in the uterine cavity or inside an egg.</em>
The vacuole is used to store waste products, water, or toxins. It is like a large holding tank for plant cells.
Hope this helps!
Sry to dissapoint but you didn't post anything but the question Answer all of these please<span />
A. <span>They are sense organs that are part of the central nervous system.</span>
