Answer:
1 so that all parts of the plants and animals Get Enough nutrients and oxygen
2 the pigment called haemoglobin makes it red
3 waste products such as urea will cause great harm to the body is not excreted
4 the heart pumps blood the blood contains nutrients and oxygen facial transported to other organs so that the cells can operate
5 transpiration is the loss of water by plants. it helps with cooling down the plant after photosynthesis. Just the Way We sweat
6the stomata opens and closes to allow water to pass through it therefore transpiration occurs
Answer:
It is true
Explanation:
Use the DNA for the identification of suspects, it has been classified among secretors and non-secretors. In the category of secretors are individuals whose body fluids can be classified, through the determination of their blood group, with saliva being the most suitable substance.
Non-secretors can be classified but blood particles cannot be detected in the fluids.
Answer:
It would contain four electrons.
Explanation:
A neutral atom has equal numbers of protons and electrons. Therefore, a neutral atom with four protons will also have four electrons.
FYI an atom with four protons is an atom of the element beryllium, Be.
Answer:
Cetacean
Explanation:
Let us start with the family Delphinade which is the largest in the Cetacean order, and relatively recent: dolphins evolved about ten million years ago, during the Miocene. Dolphins are among the most intelligent animals and their often-friendly appearance and seemingly playful attitude have made them popular in past and current human culture.