STAAR Review 4: Question Preview (ID: 30404)

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If an offspring is produced through sexual reproduction, the offspring’s genetic material is always –
a) a) a copy of the genetic material of one parent.
b) b) identical to the genetic material of its siblings.
c) c) completely unrelated to that of its parents.
d) d) a blend of the genetic material of its parents.

A farmer wants to increase the amount of food produced by corn crops. If the farmer selectively breeds the plants, for which trait should the farmer select?
a) a) taller stems
b) b) resistance to pesticides
c) c)deeper roots
d) d) more cobs on plant

Which of the following is part of the theory of natural selection?
a) A) Individuals that acquire characteristics will pass those characteristics on to their offspring.
b) B) Most offspring of a species will survive to reproduce.
c) C) Individuals within the the same population have identical traits.
d) D) Individuals that have favorable traits are more likely to survive and reproduce.

Which of the following statements supports the idea from the cell theory that cells extract energy from food to sustain life?
a) a) Yeast are living organisms made up of one cell.
b) b) A paramecium breaks down organic matter to live.
c) c) Unicellular bacteria represent the most basic unit of life.
d) d) An E. coli divides in half, forming to daughter cells.

Gina wrote a description of an organism she had observed under a microscope. The organism has 1 cell, a whip-like tail, and a nucleus and organelles. Why is this organism classified as a eukaryote?
a) a) Because it is a single cell
b) b) Because it can move by using its flagellum
c) c) Because it contains organelles such as a nucleus
d) d) Because it contains cytoplasm that is surrounded by a cell wall

The hereditary information in animal and plant cells is located on the chromosomes, which the cells store in the –
a) a) vacuoles
b) b) nucleus
c) c) cytoplasm
d) d) ribosomes

Whether or not an organism reproduces sexually or asexually, the offspring resulting from reproduction has traits that depend directly on its parent’s or parents’ –
a) a) genetic material.
b) b) physical appearance.
c) c) habitat location.
d) d) migration patterns.

The ecosystem with the greatest sustainability will be the one that has the –
a) a) greatest variety of different organisms
b) b) highest annual precipitation.
c) c) lowest population of harmful insects.
d) d) fastest growing season for plants.

Chloroplasts are oval disks containing green chlorophyll in plant cells. Animal cells lack chloroplasts because they -
a) a) do not perform photosynthesis
b) b) have cilia for movement
c) c) use mitochondria for photosynthesis
d) d) do not have cell walls

Which of the following investigations studies how an organism in an aquatic ecosystem depends on an abiotic factor?
a) A) A study of fish eating algae
b) B) A study of fish swimming in water
c) C) A study of fish mating with another fish
d) D) A study of fish seeking shelter behind a plant

The food chain for an ocean ecosystem is shown: . Ocean plants - plant eating fish - barracuda-shark Which of the following will most likely happen if overfishing eliminates the population of plant-eating fishes?
a) A. The barracudas will need to move to another area or they will die because their food source will decrease.
b) B. The barracudas will eat the plants.
c) C. The shark population will increase.
d) D. The plant population will decrease in size.

Females of a certain species of wasp lay their eggs inside the bodies of tarantula spiders. When the eggs hatch, baby wasps kill and eat the tarantula. What type of interaction is this, and why?
a) A. symbiosis, because the tarantula feeds the baby wasps
b) B. competition, because the baby wasps must compete to get food from from the tarantula's body
c) C. parasite-host, because the female wasp benefits at the expense of the tarantula
d) D. predator-prey, because the female wasp feeds on the tarantula

Which of the following kinds of organisms has the greatest biomass in a food chain?
a) A. Producers
b) B. Carnivores
c) C. Herbivores
d) D. Detritivores

Algae called zooxanthallae live inside the cells of a coral under the sea. The coral provides carbon dioxide for the algae which in turn produce oxygen for the coral to live. What type of interaction is this?
a) A. Competition
b) B. Mutualism
c) C. Commensalism
d) D. predator-prey

Which level in a food pyramid is the most fragile or most susceptible to extinction?
a) A. Producers
b) B. Prey
c) C. Detritivores
d) D. top predators

a) s
b) s

a) s
b) s

a) s
b) s

a) x
b) x

a) x

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