When the egg cell is fertilized with the sperm cell, it changes into a zygote. It then becomes a morula and blastula. Then it turns into grastula and neurula where neural plate is transformed into neural tube.. Finally, it becomes a human embryo.
The answer is -Prokaryotic cells have single strands of DNA, and eukaryotic cells have multiple chromosomes.
The main difference between prokaryotic and eukaryotic cells is that eukaryotic cells have long tangled strands of DNA packed in the nucleus, and prokaryotic do not have nucleus and their DNA is short stranded. Since DNA strand are very long in eukaryotic cells, they are organised in chromosomes. The number of chromosomes is different for each species, and 23 chromosomes are characteristic for humans.
<span>C is the correct answer. Cats’ whiskers are touch receptors which help them sense things in the world through touch (tactile sensors). Therefore, trimming cats’ whiskers can be dangerous for the cat as it removes some of their senses until the whiskers grow back.</span>
Answer:
Explanation:
Xylem moves water from roots to the leaves, and phloem moves food from the leaves to the rest of the plant. During transpiration water evaporates from the leaves and draws water from the roots.
If the rate of transpiration increases, the rate of absorption of water by the root increases too. Factors that affect the rate of transpiration also affect water uptake by the plant. If water is scarce, or the roots are damaged, a plant may wilt.
Factors affecting rate
The rate of transpiration is affected by several factors, including:
temperature
humidity
wind speed
light intensity
