Answer:
B. Before sperm and egg cells form.
Explanation:
An organism become a juvenile during its life cycle before sperm and egg cells form. juvenile is a stage in which organism is immature and young. The y just enter into the young stage. Every animal has three basic stages in their life cycles that starts as a fertilized egg, developing into an immature juvenile, and then transforming into an adult. The first stage occurs when the fusion of sperm and egg cells occur whereas adult is the mature stage of that organism.
Answer: A cactus has needles to prevent animals from eating the water out from it.
Explanation:
Answer:
The correct answer is option (C) "After splitting ATP, a protein changes shape to pump ions across a membrane".
Explanation:
Adenosine triphosphate (ATP) is an organic chemical molecule considered the "molecular unit of currency" of intracellular energy transfer, for the high level of energy that is released when ATP is breakdown into adenosine diphosphate (ADP). ATP provides energy to drive many processes in living cells. One example of how the chemical potential energy of this molecule is turned into work is that after splitting ATP, a protein changes shape to pump ions across a membrane. The energy of the splitting of ATP into ADP will provide energy for the protein being able to change shape, resulting in pumping ions across a membrane.
Answer:
humans use their knowledge to locate resources.
Explanation:
The carrying capacity can be defined as the maximum number of individuals in a population of a species that an ecosystem or region can support on the basis of availability of water, food, habitat and other needs necessary for survival. Sometimes, the population of the species increases exponentially exceeding the carrying capacity of an ecosystem when the resources available are surplus.
The human populations are not limited by the carrying capacity of their ecosystem this is because of the fact human beings possess special intellectual and thinking abilities which make them capable of availing themselves resources. They posses knowledge which allows them to search, and find resources even from the earth extreme locations not suitable for survival.
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Answer:
RBCs ( Red blood carpuscles )
WBCs ( White blood carpuscles)
