Answer:
cytoplasm is the jelly like substance.
Explanation:
N/A
The answer to your question is B. Crossing over occurs when homologous chromosomes pair up and exchange genetic material at the chiasmata (site of exchange).
The interaction between red-billed oxpecker and impala is mutualism. The interaction between titan triggerfish and smaller fishes is commensalism.
<h3>Mutualism and Commensalism</h3>
Mutualism is a form of symbiotic interaction between two organisms in which both organisms benefit from the interaction without being negatively affected in any way.
Commensalism, on the other hand, is a form of interaction between two organisms in which one (the commensal) gains and the other neither benefits nor lose from the interaction.
The red-billed oxpecker gets its food off the fur of the Impala. The tick that serves as food for red-billed oxpecker is a parasite that harms the impala. Thus, the red-billed oxpecker gets its food while the impala gets the ticks that can harm it removed. A mutually beneficial relationship.
The activities of the Titan triggerfish benefit smaller fishes. The Titan triggerfish neither benefits nor gets harmed in the interaction. A form of commensalism.
More on mutualism and commensalism can be found here: brainly.com/question/17589318
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Answer:
A. Creating foods with better nutritional value
<span>Bipedalism is the adaptation which emerged during pre-australopiths so as to become one of the key distinguishing characteristics of our ancestors.
Bipedalism is known as a form of terrestrial locomotion whereby organisms moves by means of its two rear legs or limbs. By freeing their front legs, our ancestors had a benefit like allowing the use of carrying tools.
Walking upright helped the ancestors to be able to see the predators and the preys.</span>