Answer:
A scientist discovers a new organism in run-off from the Rio Tinto River in Spain (the river runs through a copper mine and the water has a pH of 2.0). On basic microscopic examination and after conducting a few simple experiments, she finds that this single-celled species is heterotrophic, has no cell wall, uses a flagellum for motion, and contains a variety of internal structures that are bound by plasma membranes. Given this information, this new species is most likely a <u>eukaryotic</u> cell in the <u>protozoan</u> subcategory
Explanation:
Eukaryotic cells contain nucleus and organelles and are enclosed by a plasma membrane. Organism that have these cells are protozoa, fungy, plants and animals.
Protozoan are single-celled eukaryotic.
The hypothalamus is a part of the central nervous system that is directly linked to the pituitary gland and regulates its activity.
The pituitary gland is key in regulating the whole endocrine system because it secretes hormones that control the releasing of hormones in other glands such as the adrenal glands, the gonads etc.
The hypothalamus excretes releasing hormones which travel to the pituitary and start the excretion of another set of hormones that travel to other glands starting the production of their own hormones.
This forms a delicate system which has a moving balance and responds to external stimuli through the connection the hypothalamus has with other parts of the brain which process information that comes from the external and internal receptors ( such as heat, hunger, emotional state etc.).
I think it is D.... Light and heat from the sun do impact the biosphere.
Answer:
The correct answer will be- sac like structure called ascus.
Explanation:
Ascomycota is the largest division of the fungi with about 64000 species which reproduces by both the ways of reproduction.
The ascomycetes are named so because of their sac-like microscopic structure called ascus formed during the sexual reproductive phase of the fungi. A single ascus produces eight ascospores through meiosis under optimal conditions which form the fungi.
Thus, sac-like structure called ascus is the correct.