Answer:
The evolution of the heart is based on the separation of oxygenated blood from deoxygenated blood for efficient oxygen transport. pisces have a dual chambered heartwhile reptiles and amphibians are having a three chambered finally aves and mammals have four chambered hearts.
Explanation:
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A long, wet season results in additional earthworms in a robin habitat.
Explanation:
A long, wet season resulting in additional earthworms in a robin habitat will not lead to competition in an ecosystem or area.
Competition between organisms is the struggle for limited resources in the environment that are beneficial to all lives.
- Competition is usually driven by shortages and lack of resources to make life better in the ecosystem.
- When resources becomes depleted and are in limited amount organisms will begin to strive among on another to develop advantages that would make them top out.
- A long, wet season resulting in the introduction of additional earthworms in a robin habitat is not an example of competition.
- The earthworms available is a limiting factor and this has been circumvented by the introduction of more earthworms during the prolonged wet season.
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When mitosis is not regulated correctly, health problems such as cancer can result. The other type of cell division, meiosis, ensures that humans have the same number of chromosomes in each generation. It is a two-step process that reduces the chromosome number by half—from 46 to 23—to form sperm and egg cells.
Answer:
Production of ATP via oxidative phosphorylation require an intact mitochondrial membrane because of the creation of an electrical potential.
Explanation:
Oxidative phosphorylation is a method, in which energy is converted into ATP by a sequence of protein complexes located inside the mitochondrial inner membrane. Production of ATP through oxidative phosphorylation requires an intact mitochondrial membrane because a change in electrical charge between both sides of the inner mitochondrial membrane results in the creation of an electrical potential. The protons have accumulated on the exterior of the mitochondria, making it positive (H), while the protons have been lost within, making it negative. On each surface of the membrane, a differential or gradient in chemical concentration has been formed. The cell transmits the energy stored in the decreased NADH and FADH via the electrochemical gradient.
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Answer:
The correct answer is Smooth ER: protein synthesis
Explanation:
Endoplasmic reticulum is a single membrane-bound organelle containing interconnected membrane-bound cisternae which are the extension of the nuclear membrane. Endoplasmic reticulum is divided into two parts smooth endoplasmic reticulum and rough endoplasmic reticulum.
Smooth endoplasmic reticulum does not contain ribosomes on it and is involved in the synthesis of steroid hormones and lipids, detoxification of harmful products and removal of xenobiotic from the cell, calcium storage, and metabolism.
Rough endoplasmic reticulum has ribosomes on its surface which helps in protein synthesis on RER. So Smooth ER and protein synthesis are incorrectly matched.
