Answer:
C- homogeneous mixture
Explanation:
its made up of multiple elements that aren't chemically combined.
you cannot see the parts of the mixture
Answer:
B. The <em>pituitary</em> gland
Explanation:
Can't be the ovaries, they're down by the hips!
Can't be adrenal glands, they're on top of the kidneys!
Can't be the thyroid, that's low on the front of the neck or something like that!
It's B, the pituitary; it's on the base of the brain.
Have a great day!
Answer:
D. Hydropower can harm native aquatic populations.
Explanation:
- Hydropower is the power of water or hydrosphere and is the cheapest and simplest form of energy.
- The hydrosphere is a renewable source of energy and is thus non-polluting but most of the hydropower that is converted into electricity is harmful to the marine and aquatic life forms.
- As it disturbs their habitats and created chemical and physical change in the body of water. Such as depletion of oxygen and enrichment of nutrients.
Because of underdeveloped lungs the frog has to breathe through moist skin. Therefore for exchange of gases the skin is thin and moist
Answer:
Empirical evidence of his ideas
Explanation:
The scientific process involves the formulation of hypotheses that enable to answer questions about the real world, and then to carry out experiments or observations that are used to confirm (or reject) such predictions. In the last 160 years, Darwin's ideas on 'descent with modification' have constantly been subjected to experimental assessment, and obtained data confirmed his observations. For example, molecular evidence based on the DNA and RNA -which constitute the genetic material of all living organisms- has shown the conservation of this process. In consequence, molecular evidence has been used to construct 'evolutionary' phylogenetic trees from DNA/RNA sequences. Moreover, evidence in genetics has shown the critical role played by mutations in the mechanism of natural selection proposed by Darwin, thus also confirming his theories. These are only some examples, and supporting evidence confirming Darwin's ideas has been collected from different research fields ranging from ecology to molecular biology.
