1. Which statement describes a species variation that could be created by interspecies interactions?
a. an arctic fox has a thicker coat of fur than a desert fox.
b. a gene mutates and produces as entirely new trait in an animal.
c. ants protect acacia trees from grasshoppers that eat their leaves.
d. pants on one side of a [...]
1. Snowshoe hares experience a change in fur color from brown in the summer to white in the winter. Which statement best describes how the appearance of a particular snowshoe hare may change after it lives in a warm environment, year round, for many generations.
a. it would have white fur all year long
b. it would [...]
1. Which statement explains why, in a food chain plants are called producers and animals are called consumers?
a. plants make oxygen, and animals use it.
b. Plants use carbon dioxide, and animals give it off.
c. plants make their own food, and animals eat other organisms.
d. plants use energy from the soil, and animals make their own [...]
1. The birth of a baby indicated that a fertilized egg developed in which of these structures?
a. ovary
b. testis
c. uterus
d. alveolus
1. As blood flows to the heart from the toes and fingers, it travels mainly through tissue called
a. veins
b. alveoli
c. arteries
d. capillaries
Which statement describes a characteristic shared by organisms
classified within the Protista, Plantae, and Fungi kingdoms?
a. the cells have cell walls.
b. their cells have chloroplasts
c. each of their cells has a nucleus.
d. each of their cells has a large vacuole.
1. According to Mendel’s law of Dominance, which statment describes the result of a cross between two parents with genotypes Ff and Ff?
F= free earlobes
f= attached earlobes
a. offspring must have Ff to have free earlobes
b. offspring must have FF to have attached earlobes
c. offspring with at least one F allele will have free earlobes
d. offspring [...]
Even on a windy day, most plants can remain upright. Which structure plays the greatest role in providing a plant with this type of support?
a. nucleus
b. mitochondra
c. cell wall
d. skeleton
1. Which statement describes the process of growth within an organism?
a. A green vine uses energy from the Sun to produce more cells.
B. A fire produces more heat as additional fuel as needed
c. An oak tree drops its leaved when the season seasons change.
d. An animal’s fur is raised when it senses danger.
