Answer:
Glycine contains a lone hydrogen atom in its side group which makes it less bulky than other amino acids
Explanation:
Glycine contains a lone hydrogen atom in its side group which makes it less bulky than other amino acids. This characteristic enables it to overcome strict effects or nonbinding barriers which be faced by other amino acids
There is no concrete evidence linking genes to memory in terms of a good one or a poor one. However, there is a possibility that Êmemory-affectingÊconditions like Alzheimer's may be linked to genes.
A is correct. We know that water buildup is essential for plants (and all other organisms) that live in the desert due to its lack of moisture. So, the question is simply asking which adaptation will help a plant retain the most water in the desert. Here’s what makes each wrong or right:
A. Stem that stores water - Having stems that can retain a lot of moisture and water is absolutely necessary for plants that live in hot and dry biomes. The brief periods of rain in the desert make it easier for plants with water-storing stems to absorb the water and remain hydrated throughout their time. This is referred to as succulence, and most (if not all) plants in the desert are succulents. This is the correct answer!
B. Shallow root system - Many plants that live in deserts tend to have shallow root systems that allow them to quickly absorb and moisture in the environment — and because water never goes too far in the desert, they soak most of it up. Although this is helpful, it is better for plants that live in places with a lot of soil.
C. Large surface area - Having a large surface area is more useful for photosynthesis and may result in dehydration. This is wrong!
D. Flat broad leaves - Again, this adaptation is more favorable for plants that do not live in the desert because, as we know, photosynthesis requires water.
Answer: An increase in gene flow between the bird populations.
Explanation:
The population of bird species living in the island and other one in mainland are geographically isolated because of the distance between the island and the mainland is large that does not allow birds to fly and cover the entire distance. This is the reason of reproductive isolation and restricts the gene flow between the two populations. But the creation of sandbars and tiny islands between the island and mainland created a way so that island and mainland birds can meet and reproduce. This will allow the increase in the gene flow between the two separated population of bird species.
Answer:
Option (D).
Explanation:
Lymphatic system is one of the most important system of the body and the part of the vascular system. This system also plays an important role in the immunity.
Various substances like lymph fluid, ions and immune cells flow in the lymphatic system. The fluid flow from the blood capillaries to the lymphatic capillaries via the interstitial spaces. From the lymphatic capillaries the blood flows into the lymphatic vessels then into the lymphatic ducts and finally into the subclavian veins.
Thus, the correct answer is option (D).