lean green photosynthesis machine
2 parts:
1. carries water up from the roots of the plant
2. carries sugars from the site of photosynthesis throughout the plant
What is (1) xylem and (2) phloem.
chemical messengers in the body that maintain homeostasis by binding to specific receptors in tissues
What are hormones?
protection, regulates body temperature, prevents water loss
What is integumentary?
Necessary for a virus to reproduce
What is a host cell?
transports gases, waste, nutrients, and hormones throughout the body
What is the circulatory system?
male reproductive part of the plant
What is the stamen?
biological systems maintain a stable, balanced internal environment—such as temperature, pH, and nutrient levels—despite changing external conditions
What is homeostasis?
What is the primary organ responsible for maintaining normal blood glucose levels?
What is the pancreas?
contained inside the capsid of a virus
What is a nucleic acid?
protective shell that encloses genetic material in a virus
What is a capsid?
plants growth in response to sunlight
What is phototropism?
When tissue is torn or injured, a chemical is released. This chemical causes platelets in the blood to activate. Once these platelets have activated, they release a chemical that signals more platelets to activate, until the wound is clotted. This is a feedback loop between what systems? (choose 2 and explain)
What is circulatory, endocrine, and immune?
Concentration of salts in sea water surrounding marine fish is much higher than that of the liquid in the fish. This water enters the fish by diffusion through the gills, food consumption, passive diffusion and drinking. When salt concentration is too high in the fish, salt ions must be released via the skin, and in very concentrated urine. Name the two system interactions responsible for homeostasis in the fish.
What are integumentary and excretory?
initial phase of a viral infection
What is the lytic cycle?
a protective, hydrophobic, waxy layer covering the epidermis of aerial plant parts
What is the cuticle?
modified leaves that attract pollinators
What are petals?
Goosebumps in mammals raise the hair or fur, allowing more heat to be retained. In humans, they tighten the surrounding skin, reducing (slightly) the surface area from which to lose heat. Vasoconstriction ensures that only a small surface area of the veins is exposed to the cooler outside temperature, retaining heat. Normal temperature is regained. Name two systems in this interaction.
What are integumentary and circulatory?
removes metabolic waste, excess water, and toxins from the body to maintain homeostasis
What is excretory?
What is the purpose of proteins on the outer surface of the virus?
What is adhesion/attachment to the host?
All ___ come from preexisting _____.
What are cells?
allows gases to enter and exit the leaf
What is the stomata?
When labor begins, the baby’s head is pushed downwards which results in increased pressure on the cervix. This stimulates receptor cells to send a chemical signal to the brain, allowing the release of oxytocin. This oxytocin diffuses to the cervix via the blood, where it stimulated further contractions. These contractions stimulate further oxytocin release until the baby is born. Explain 2 systems that are interacting.
What are Endocrine, Reproductive, nervous, and muscular?
releases hormones for growth and development
What is endocrine?
A person who had the chicken pox at age 4 develops shingles at age 75 due to the varicella zoster virus lying dormant in their nerve cells. The dormant phase is what cycle?
What is the lysogenic cycle?
A group of RNA viruses causing disease in mammals and birds, named because they're shaped like the sun.
What is a coronavirus?