Answer:
<em>1. They effect crop productivity</em>
As weeds start to grow in the area where the crops were destined to grow, the production of the crops gets lowered.
<em>2. They deplete the crops from nutrition</em>
The weeds will compete with the crop plants for resources such as minerals from the soil.
<em>3. They will deplete water resources</em>
The weeds will compete with the crop plants for water.
<em>4. Sun-light will be depleted</em>
The weeds will complete with the crop plants for sun light.
<em>5. The crop quality will be affected</em>
As the crop plants will be in competition with the weeds, hence their quality will be affected.
6. <em>They can reduce the biodiversity of crop plants.</em>
Ghtly acidic rainwater dissolves the limestone bedrock creating caverns and sinkholes
<span>the high water table in much of the state effectictively floods most of them </span>
<span>people use them to find ice age fossils as many animals got trapped in the sinkholes</span>
Answer:
Marasmus
Explanation:
Marasmus is a type of protein deficiency that occurs in children.
Its presents with a shruken look, loss of muscle and fat, wasted look but doesn't come with stomach bulging like kwashiorkor and marasmic kwashiorkor.
Other symptoms include
Hypothermia
Anaemia
Dehydration
Shruken eyes
Weak radial pulse
Pneumonia
Dry skin
Brittle hair e.t.c
Answer:
Protista, Plantae
Explanation:
Protists are a diverse group of organisms with microscopic and unicellular cell structure. It includes the plant-like protists (algae), the animal-like protists (protozoans) and fungi-like protists.
Earlier Algae was classified as protista but they were unable to represent evolutionary relationship accurately and the classification was insettled. Modern taxonomy has rearranged the group and placed it under kingdom plantae on the basis of mode of nutrition is naturally autotrophic mode and mode of reproduction can be either asexual mode or sexual mode or vegetative mode.
Hence, the correct answer is Protista and Plantae in sequential order.
Answer:
1. Many vertebrates have teeth, and chewing (mastication) breaks up food into small particles, expanding its surface and mixes it with fluid secretions, which makes it possible to digest. Teeth are located in the mouth of animals, where the digestive process initiates.
2. The stomach, which resembles a bag-like shape, can either fold up when empty and expand like a balloon when it fills up with food. By doing this, the area of activity of the gastric juice is expanded, increasing the efficiency of the digestion. Food enters the stomach from the esophagus.
3. The villi and microvilli present in the epithelial wall of the small intestine, are fingerlike projections that greatly enhance the surface area of the small intestine. In humans, this surface area is 300 square meters and it is over this large surface that the products of digestion are absorbed.
