The echinoderm with long spines
belongs to the class Echinoidea which includes sea urchins, heart urchins, cake
urchins and sand dollars. This spine serves as their protective mechanism from
predators. The spines are joined to the skeleton and muscles surround it. The muscles
enable them to swivel its spines from predators.
Jason carry one allele for not having cyctic fibrosis and one allele for having cyctic fibrosis therefore he is heterozygous for the cystic fibrosis gene.
Jason does not have cystic fibrosis and it is his phenotype (physical expression of the gene) for the trait.
Jason's genotype (set of genes in its DNA) for the cystic fibrosis gene is Ff because he is heterozygous for the gene.
Answer:
The dark part of the shadow is the umbra, and the part that is a little lighter is the penumbra. They can be experienced on Earth, but more readily in space, such as during a solar eclipse, when the Moon moves in front of the Sun and leaves a shadow on Earth.
Explanation:
Answer:
B. The thick, waxy coating prevents water loss.
Explanation:
This is because the thick waxy coating needle refer to structure posses by plants or mostly xerophites plants to adapt to their environment. Plants that grow in area where there is no abundance of water for use normally posses these structures which will reduce evapotranspiration and conserve water. These plants normally have extensive roots to draw water.
True because I have read some articles about glaciers and Florida getting smaller by erosion
