C. Xylem moves water up, and phloem moves food down
Answer:
Gases are given off every time a chemical reaction occurs
Explanation:
I think it's 3 because you need oxygen in your body to survive
This procedure is called Pap smear or Pap test. This procedure is used to screen the patient for cervical cancer. Abnormal tissue growth due to HPV virus may be present on the cervix and can only be detected by scraping the cells and observed under a microscope.
Answer:
B) 50%
Explanation:
Recessive alleles need two be present in both homologous chromosomes to express and to observe the phenotype they determine in the individual.
The possible genotypes and phenotypes for fur pigmentation in tigers are:
- aa: white
- Aa: normal
- AA: normal
The phenotypically normal heterozygous tiger is <em>Aa</em> and is crossed with a white tiger <em>aa</em>.
The Aa tiger produces 1/2 <em>A</em> gametes and 1/2 <em>a.</em> The aa tiger only produces <em>a</em> gametes.
<u>The possible offspring resulting from the combination of those gametes is:</u>
- 1/2 Aa: normal
- 1/2 aa: white
So 1/2 = 50% of the offspring will be white.