Which is a potential negative consequence of using genetically engineered medicine?
a.gene markers that are resistant to antibiotics are used, providing the possibility for humans to have increased antibiotic resistance.
b.products that are used to genetically engineer medicine are poisonous.
c.restriction enzymes are used to create the medicine and have been known to cause cancer.
d.medicine that is created this way is less effective than medicine that is created the traditional way.

Leslie argues that an organism called a Euglena is a plant because it is eukaryotic, has a nucleus, makes its own food, and is unicellular. Where is Leslie's error? Plants do not make their own food..

A spring is a natural discharge point of subterranean water at the surface of the ground or directly into the bed of a stream, lake, or sea. Water that emerges at the surface without a perceptible current is called a seep. Wells are holes excavated to bring water and other underground fluids to the surface.

The image shows a cross-section of land scape.

Need this store of protein: 

The seed consists of three components: embryo, endosperm (sometimes perisperm), and seed-coat. Both endosperm and embryo are the products of double fertilization, whereas the seed-coat develops from the maternal, ovular tissues. The seed habit is a significant advancement in the evolution of higher plants.

Anatomy of seed :-

Seed storage proteins provide a source of amino acids and reduced N necessary for germination and early growth of the seedling.

Angelica suffers from lupus disease.people with this disease are extremely sensitive to sun light.

A scientist look for in a plant that would identify it as a club moss rather than a liverwort.

The nerves and muscles communicated with each other to trigger her reflexive response…

when soaked in dilute sodium chloride solution onion gain mass because of the process of osmosis.

 Explanation: Osmosis is a process when there is movement of water from the region of comparatively higher concentration to the region of lower concentration across in a permeable membrane.

Example with explaination :

when soaked in dilute sodium chloride solution onion gain mass because of the process of osmosis. Explanation: Osmosis is a process when there is movement of water from the region of comparatively higher concentration to the region of lower concentration across in a permeable membrane.