Which cells are required before an allergic reaction can take place? Eosinophils Neutrophils B cells Macrophages IDON'T KNOWYET

A basic mechanism for maintaining body hydration is thirst. electrolyte balance. acid-base balance. activity level.

A cross is made between a green four-o'clock and a variegated four o'clock. Green chlorophyll synthesis is inherited via the chloroplasts, which are maternally inherited in this species. If the variegated plant provides the pollen, the expected outcome of the offspring would be all plants with green leaves. 3 plants with green leaves to 1 plant with variegated leaves. 3 plants with green leaves to 1 plant with white leaves. some plants with green leaves, some with variegated leaves, and some with white leaves.

A(n) __ contains half as many chromosomes as other cells do. gamete amino acid gene allele

The hormone responsible for promoting conservation of sodium in the kidney is aldosterone. the antidiuretic hormone. angiotensin. renin.

Which of the following areas form the central core of the brain? Thalamus Hypothalamus Epithalamus Cerebellum

In a lactase -controlled experiment. the negative contro I can be shown by lactose only. a mixture of lactose and water. a mixture of lactose and lactase. lactase only.

The two ways that the body gains water are through the skin and drinking. ingestion and metabolism. urine output and sweating. defecation and ingestion. ingestion and osmosis.

In most species, the transmission of mitochondria follows a maternal inheritance pattern. a paternal inheritance pattern. a biparental inheritance pattern. a genomic imprinting pattern.

Jellyfish were the first invertebrate animals in the earth's oceans? True False

What are the three modes of pathogen transmission? Contact, Droplet, Air Droplet, Water, Air Water, Droplet, Touch Earth, Wind, Fire