Sponges reproduce

a. sexually in a way favoring cross-fertilization.

b. sexually in a way favoring self-fertilization.

c. asexually with sperm only.

d. none of the above

The ability of solid rock to flow is called

Describe how photosynthesis provides food for ecosystems?

An organism has the following features: diploid ife cycle; protostome embryonic development; true coelom; closed circulatory system; segmentation; appendages without joints; no mantle. To which phylum does this organism belong? a. Porifera b.

Evidence for evolution only comes from fossils. Is true or false?

Is lemon juice a weak acid

Which is NOT true about Balanced Forces?

Water is involved in

How do some hormones affect only certain cells in the body but not others? A only cells having specific receptors for a hormone can respond to the hormones presence B some cells have the wrong temperature to respond to the hormone C special

If you must exercise outdoors at night, which kind of clothing is best to wear

The quantity of water that can be held by subsurface rock or soil depends on the ___ of the material.