Darwin's plans to find out about simulated choice by examining pigeons is that he needed to learn whether you can change the entire species taking after that particular pigeon into another type of pigeons. I hope the answer will help you.
LD50 or TD50: it is the Lethal Dose 50 (to refer to animals), and Toxic
Dose 50 (to refer to the human being). To refer to animals is: the dose of a
drug, a drug (generally a substance) that kills 50% of a population. To
refer to the human being: it is the dose of a drug, a medicine (in general a
substance) that produces toxicity to 50% of a population.<span>
<span>Find the LD50, it is very important to determine the
dose in which the drug produces toxic effects and thus be able to approach or
deduce the effective dose, that in cases of administering a new drug to the
human being, it is necessary to find the effective dose 50 (Dose of the drug
that produces a therapeutic effect to 50% of the population) in order to
determine the Therapeutic Margin or Therapeutic Index.</span></span>
The answer to this question is letter B. Convection.
<span>>Mantle's convection is thought to make up about eighty percent of the internal heat flow to the surface, while the remainder originates in the crust.
</span><span>>The main means of heat transfer is convection. This process requires that the substance can behave like a "fluid", and the earth's mantle does.</span>
The larger the surface area of the mitochondrial chloroplast would allow more energy to be received from the sun, which would later affect the energy output by increasing the amount of energy released.
Answer:
Xylem developed to transport water from the plant’s roots to the rest of the plant.
Explanation:
A waxy cuticle is usually present to reduce water loss, whereas spines are often in place that help plants avoid being eaten by herbivores.
Stomata are key for gas exchange, and actually permit the release of water. Water is taken up through the roots, not the stomata
All plant cells have nuclei, which is the organelle in which DNA is stored. The seeds did not develop to provide a place for the storage of genetic information.
However, the xylem is an important part of the plant vascular transport system that ensures water is transporter from the roots to the leaves. This is an important adaptation for land plants as it ensures all parts of the plant get a water supply, particularly the leaves that are undergoing photosynthesis.
