Which of the following is involved in "double fertilization"?

a-sperm

b-endosperm

c-embryo sac

d-all of the above

What is used to indcate the flow of energy in a food

All organisms need energy to function. Which organelle converts energy to a usable form? A. chloroplast B. Mitochondria C. Vesicle D. Ribosomes

Explain why the chromosomes in the haploid cells that are produced by meiosis I look different than those produced by meiosis II.

How do bacteria and viruses differ in the ways they affect cells in the body?

In a human eye, there are three types of cones that allow us to see colors. the three different types are most sensitive to red, green, and blue light, respectively. all three contain retinal bonded to a large protein.

Semi-permeable structure to contain all of the cell parts and to control what goes and comes out of the cell

Sinusitis, an inflammation of the paranasal sinuses, is brought on by a viral, bacterial, or fungal infection. the most commonly affected paranasal sinuses are the most inferior ones, which are called

Which processes are caused by convection currents in the mantle? Check all that apply. 1. earthquakes 2. ridge push 3. tsunamis 4. slab pull 5. volcanic eruptions 6. subduction

Why might genetically identical twins have different phenotypes?

What is a monemor of a lipid and what is it in general?