Practice SAT2 Biology Questions !!!! please help

<p>arranged in random order</p>

<p>Please answer the questions if you can and explain</p>

<p>put answers in</p>

<p>1 -answer
2-answer
3 answer</p>

<p>and so forth</p>

<p>1)Which animal would provide an understanding of the basic anatomy of a human
- mouse -lobster -tapeworm -chicken -squid</p>

<p>2)In evolutionary sense the fittest individuals are</p>

<ul>
<li>ones that survive the longest -healthiest -most variation -strongest - leave the largest number of fertile offspring</li>
</ul>

<p>3)Which biome contaisn the most diversity
-savanna -grassland -taiga -temperate forest -tropical rain forest</p>

<p>4)feathery structures on milkweed seed and burrs on the cocklebur fruit have which function in common</p>

<p>-protection of embryo -food storage -seed germination -seed disperal -ensuring fertilization</p>

<p>5) which evolutionary sequence is correct</p>

<p>mammals evolve to reptiles
birds evolved from mammals
amphibians evolved from reptiles
fish evolved from amphibians
reptiles evolved from birds</p>

<p>6)plasma in mammals is composed of ?</p>

<p>RBC and WBC
mineral ions
vitamins
water
hemoglobin</p>

<p>EDIt- my teacher didnt and probably wont have time to teach mendelian genetics, i have some books but does anyone know a good website that covers mendelian genetics and is easy to understand</p>

<p>1)mouse
2. leave the largest number of offspring
3.trop rain forest
4.seed dispersal??? im not familiar with this...
5.fish-amph-rep-birds-mammals
6.water mainly with dissolved substances.</p>

<p>1) mouse
2) largest number of offspring
3) rain forest
4) seed dispersal (the cockbur gave it away)
5) ??? sorry, i don't get this question. I don't think any of these are right...
the correct order: fish --> amphibian --> reptile --> bird --> mammals
6) water mostly and dissolved ions.</p>

<p>1) Mouse is the closest relation to human in the list</p>

<p>2) The definition of fitness is the ability to contribute to the gene pool - thus the individual with the most offsprings</p>

<p>3) Tropical rain forest is the most diverse biome</p>

<p>4) They are both wind-pollinated plants, these structures on their seeds help being carried by the wind, seed dispersal</p>

<p>5) mammals evolve to reptiles
birds evolved from mammals
amphibians evolved from reptiles
fish evolved from amphibians
reptiles evolved from birds</p>

<p>All of these choices are wrong? Both reptiles and birds came before mammals, so A and B are wrong, amphibians came before reptiles, fish came before amphibians, and birds came after reptiles.</p>

<p>6) Plasma is composed of mainly water with mineral ions, this question can't come up on the real exam cause you can't choose 2 answers lol</p>

<p>thanks for the answers</p>

<p>can anyone explain the answers for 2.4.6
i still cant seem to understand them</p>

<p>^^^^^^</p>

<p>I just did? :D</p>

<p>thanks i didnt see your post :D</p>