Correct Answer: C. The price mechanism allocates resources

Correct Answer: C. broad leaves

Correct Answer: (c)air

Explanation

(a) Adaptive features of climbing animals are:

(a) There is presence of prehensile tails, (e.g. monkey

(b) They have opposable digits e.g. monkey

(c) They possess sticky adhesive discs on fingers e.g. geckos

(d) They possess grasping scales e.g. snakes

(e) They have grasping pads e.g. tree frongs

(f) They have long, sharp claws for climbing e.g. squirrels.

(b) Important uses of water to organisms in rain forest are:

(a) It is also essential for photosynthesis.

(b) It helps to maintain the body temperature of organisms.

(c) It is essential for plant turgidity/ mechanical support.

(d) It helps in metabolism of organisms.

(e) It provides moisture necessary for microbial activity.

(f) It provides moisture necessary for burrowing animals.

(g) It is also essential for translocation and transpiration.

(h) It is also essential for movement and survival of aquatic animal.

(i) It is important for plant and animal growth or germination of seeds.

(c)The instrument used for measurement of temperature is the thermometer. The bulb of the instrument whose temperature is to be measured is suspended in the medium for about one minute to five minutes while the level of the mercury or liquid in the stem is recorded. About three readings are recorded and the average found.

(d)(i) The following scientists have contributed to the study of solutions:

(a) Larmack

(b) Charles Darwin

(c) De'Vries

(d) A.R. Wallace (

ii) Evidence in support of evolution are:

(a) Evidence from embryology

(b) Evidence from Geographical distribution

(c) Physiological evidence

(d) Evidence of comparative morphology.

(e) Evidence of vestigial organs

(f) Evidence from cytology or chromosome doubling

(g) Evidence from fossil records

(h) Evidence form comparative anatomy.

Correct Answer: C. Mixed cropping

Correct Answer: D) 4g

Explanation

NaOH= 40.

Vol. 500/1000=0.5.

0.5

Explanation

(a)(i) Co-dominance: Co-dominance occurs when both the alleles in an heterozygous individual are fully expressed; that is both alleles exert their effects so that the hybrid has a phenotype; that is different from what the parents exhibit.

(ii) Calculation of individuals with co-dominant blood group:Mention of co-dominant blood group is AB. Evidence of calculation 32.8% of 250 OR 32.8/100 x 250 = 82 individuals/ people.

(iii) Total number of individuals that can donate blood to blood group B: The total number of individuals will be from groups B and 0.

—14% of the population is Blood group B 14% of 250 OR 14/100 x 250 = 35 individuals/people.

— 45.2% of the population is Blood group 0 45.2% of 250 OR 45.2/100 x 250 = 113 individuals/people.

— Total number of people = 113 of group 0+ 35 of group B = 148 Individuals/people can donate blood to the accident victim in B. OR The total number of individuals from (B and 0) blood group B and 0

— 14% + 45.2 = 59.2%.

— 59.2% of 250. 592/100 x 250 = 148 people/individuals.

Correct Answer: B. must go to Lagos

Correct Answer: C. Hoshea

Correct Answer: B. size of farmland