Answer: b is ineffective pointing lights on billboards and street signs upward
Answer:
The functions of dendrites are to receive signals from other neurons, to process these signals, and to transfer the information to the soma of the neuron
Explanation:
According to the top down control, each trophic level is controlled by the very next trophic level. It says that predators control the population of prey.
Therefor the correct answer is D
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Answer: DECOMPOSERS
Explanation;
These are heterotrophs that obtain their energy and necessary metabolites from organic substrates. By breaking down dead organic matter Examples ( bacteria and fungi)
They carry out extracellular digestion by secreting digestive enzymes on the organic matter and absorbs the nutrient directly without ingesting it. With this feeding process they are different from detritivore which must ingest and digest the dead matter to obtain the necessary nutrients.(examples-earthworms, woodlice)
Claim: the mean resting pulse rate for men is less than 72
bpm.
Symbolic form would be: μ < 72
Step 1: null hypothesis : μ > = 7 2 b p m
Step 2: alternative hypothesis: μ < 7 2 b p m
Step 3: the test statistic is z = mean – μ / standard dev/sqrt (n) = -3/4 / 1.7639 = -1.92
Step 4: c v method: since z α = -1.645, the test static is z = -1.92 is less than the CV, we reject null hypothesis
P Value method: area is 0.0274, since the p value is <= α, reject null hypothesis.
Step 5: the sample data support the claim that the mean resting pulse rate for men is less than 72 bpm.
