Answer:
According to the punctuated equilibrium model, evolution occurs in spurts; species evolve relatively rapidly then remain unchanged for long periods.
Explanation:
The theory of punctuated equilibrium maintains that during most of the time of existence of a species it would remain stable or with minor changes, that is, in periods of stasis or periods of morphological stability, followed by rapid and abrupt events of evolutionary changes. This model was proposed by evolutionary biologist and paleontologist Stephen Jay Gould and his colleague Niles Eldrege. This theory includes the phenomena of stasis and the sudden or instantaneous appearance of forms in the normal process of speciation, that is, formation of new species.
Answer: ENDOTOXIN
Explanation: Meningitis is a nervous system disorder that occurs when there is an infection and inflammation of the meninges,these meninges are the membranes that cover the brain and the spinal cord,they are the pia mater, dura mater,and the arachnoid mater.
This infection and inflammation of the meninges is causes by inversion of microorganism, bacteria precisely,when these bacteria that are gram negative invade the meninges,the cell wall of the bacteria dies off exposing the cellular contents, this exposure introduces a toxin known as LIPOPOLYSACCHARIDE directly in to the meninges which disrupts the normal functioning of the meninges, infection further sets in and inflammation is triggered as well.
Steroid hormones usually diffuse through the plasma membrane into target cells. Thus, the correct option for this question is B.
Steroid hormones may be defined as a type of hormones that are synthesized in the adrenal cortex, the gonads, and the placenta. They are all derived from cholesterol and many are of clinical importance. Steroid hormones are synthesized in the mitochondria and smooth endoplasmic reticulum.
According to the context of this question, lipid-derived (soluble) hormones such as steroid hormones diffuse across the membranes of the endocrine cell. Once outside the cell, they bind to transport proteins that keep them soluble in the bloodstream.
Therefore, steroid hormones usually diffuse through the plasma membrane into target cells. Thus, the correct option for this question is B.
To learn more about Steroid hormones, refer to the link:
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Answer hormone signaling
seroid hormones hormon signaling it doesent make sense but its the correct answer pls mark me brainliest i need 1 more
HOPE THIS HELPS
Explanation:
True or False?
B: is crossed off
C: transcription
D: translation
the answer is D: translation
Answer:
By using the majority of oxygen present in the water.
Explanation:
Bacteria and algae present in a pond would probably kill fish and other wild aquatic species as they can utilize the majority of the oxygen present in the water body. Fish and other species found in such waters surely would require more oxygen in order to thrive.
Thus, if algae and bacteria would consume the majority of the oxygen found in water, then naturally the species present in the water would be not able to survive the loss of that very essential constituent.