Vegetative reproduction is a mode of asexual reproduction naturally occurring in plants. In this process. only one of the parent is involved and the offspring is genetically identical to the parent and no sharing of DNA takes place.
Examples are: Onion, rhizome (ginger) and daffodil
Explanation:
There are meristem tissues found in the stem, root and leaves. These are undifferentiated cells and have tendency of dividing. This tissue gives rise to organs of the plant and responsible for its growth.
Natural vegetative propagation happens when an axillary bud grows into a lateral shoot and develops adventitious roots consequently forming a new plant.
Vegetative propagation can be done artificially also.
A large deposit of sand and soil formed at the end of a river is a delta. When a river empties into the ocean, the current carrying smaller particles, such as soil and sand, slows down and eventually stops, causing these particles to be dropped off on the shore. This eventually leads to a triangular deposit, usually referred to as the mouth of the river.
The options attached to this question are given below:
A. contains mostly needle-leaved evergreen trees.
B. is home to herds of giraffes, zebras, and wildebeests.
C. receives less than 25 cm of precipitation per year.
D. has low-growing; touch shrubs and rock, dry soils
.
ANSWER
The correct option is D.
The chappral biome is one of the most widespread biome in the world, it can be found on almost all continents. The major characteristic of the biome include the following:
It has both forest and grassland,
It has two major seasons, winter and summer; the summer season is usually very dry and last for about five months.
The dry summer makes the biome sensitive to fire outbreak, which is a common occurrence there.
The amount of rain available to the biome is about 10 - 17 inches per year and is only able to support shrubs growth, only few trees can be found in the biome.
The biome can be a plain, a rolling hill or a mountain and the soil is usually very dry.
The answer is A. flattened maxilla.
Answer:
Explanation:
La fecundación es el proceso por el cual dos gametos (masculino y femenino) se fusionan durante la reproducción sexual para crear un cigoto con un genoma derivado de ambos progenitores. Los dos fines principales de la fecundación son la combinación de genes derivados de ambos progenitores y la generación de un cigoto.
En el caso de las plantas con semillas pros, hay que diferenciar el fenómeno de la fecundación propiamente dicho (unión íntima de dos células sexuales hasta confundirse sus núcleos respectivos y, en mayor o menor grado, sus citoplasmas),1 del proceso biológico que lo antecede: la polinización, en el que los granos de polen, desarrollados en las tecas que contiene cada antera de un estambre (hoja reproductora masculina), son transportados por el viento o los insectos a los estigmas, donde germinan emitiendo un tubo polínico que crece hacia el ovario. En este caso no se trata de gametos, sino de esporas, pues cada grano de polen contiene dos gametos o células reproductoras masculinas
